Dating is always adorned with spices of love, sometimes sweet, sometimes sour, sometimes bitter love her, can feel when we are dating.
have you felt in love? feel so loved someone? feel a broken heart? feel we are losing people who really care about? :(
yes, of course, all that I've ever felt.
I never really loved someone. but death separates me with him. and also the blessing of parents who do not support my relationship with her
I once had a girlfriend who has different properties different.
of which has a quiet nature, rude, attention, tomboy, to the extent that there are so loved me.
although different, they are the one who had lived in my heart
I never had so many lovers. who had stopped at my heart.
they are:
1.nur
2.eca
3.sulis
4.siska
5.ayu
6.ratna
7.mikhaila
8.lusi
9.wenny
10.lia
among all of them I just had a wonderful experience with ayu, mikhaila,lusi, and lia
does not mean all of them are not beautiful.
I realize I have a lot of hurt my ex-lover.
it than this. if you read this arbitrarily. I'm sorry for all my wrong.
and among all of them. I just love lia and mikhaila
they both are people who truly love me with what it is, always there for me. but unfortunately all must end.
because god separates me with mikhaila through death that has separated us. whereas with lia, god separates me through my parents blessing, and its properties are too reluctant to intervene my affairs.
but what may make, all have become my destiny,
I will learn a lot from all of them.
below are pictures of people who have lived in my heart :
this girl named LUSI
this girl named WENNY
this girl named LIA
mikhaila besides, I really love this girl (lia), they will always be remembered in my heart
I only have these photos are from my ex-girlfriend.
photos of my other ex I do not have it.
but it's okay.
all of them have also become memories
so sad when he remembers everything. SORRY I have a lot of hurt you.
I now have to look forward, still a lot to pursue my
thank you for taking the time to read my blog
: D
Senin, 28 Maret 2011
Senin, 07 Maret 2011

The Drum Kit
DRUMS DW Collector Series with a Snakeskin Wrap and Black Hardware
1 22" x 18" Bass Drum
2 14" x 5" Vintage Bronze Snare with Black Hardware
3 8" x 5" Tom
4 8" x 7" Tom
5 10" x 8" Tom
6 12" x 9" Tom
7 16" x 9" Tom
8 18" x 16" Tom
CYMBALS Sabian
A 14" AAX-Celerator Hi-Hats Brilliant
B 19" Paragon Chinese
C 11" Signature Max Splash
D 10" AAX Splash Brilliant
E 19" AAX Metal Crash
F 10" Chopper Effects Cymbal
G 20" AAX Metal Crash Brilliant
H 18" Signature Fierce Crash
I 22" AAX Metal Ride Brilliant
J 19" AAXtreme Chinese Brilliant
James Owen Sullivan : Revenge Of Avenged Sevenfold
By Aldi Shannon Sullivan/Photo By Aldi Shannon Sullivan
Jimmy Owen Sullivan is staring at his feet. It's a sole-melting afternoon in July and the Avenged Sevefold drummer his fumbling with his black nail-polished fingers inside a discreet, air-conditioned studio on 23rd treet in Manhattan. The Rev, as his bandmembers call him, is clearly uncomfortable, made only more so by the way he has draped his tat-on-black, more than six-foot frame across the black learher couch nudged up against the soundproofed back wall. The clinking of the assortment of metal jewelry around his wrists is one of tonly two sounds in the room. The other is a muted ticking of the mechanism within the CD palyer three feet to his right. Hehas said nothing; he has been silent since entering the room and now he seems even more distant, gazing past the pink pastel polo shirt of his preoccupied manager to the other side of the glass beyond the rows of sliders on the soundboard, where a naked collection of microphone stands are huddled together and covered with a canvas tarp. The Rev knows it's just another day in the process of recording his band's follow-up album to their gold-certified hard rock/metal hybrid City of Evil, but seeing those microphones has distracted him from the task at hand.

BEGINNINGS. For such an avid drummer, The Rev started his musical career with the most ironic of words: “No.” At only five years old, the Huntington Beach, California, native was urged by his parents to take piano and drum lessons with the goal of learning an instrument, any instrumement. Little Jimmy resisted with all of the passion a child can muster. “I fought them on it,” he says. “But I was always kind of interested.”
That kind of constant resistance and curiosity was a part of what inspired The Rev to press on with his musical education. He began lessons at age ten on “a serious mail order drum kit – a piece of crap,” he says, laughing. “I got my own kit a year later.” The Rev started with what might be seen as an unusual cocktail of basic drumming fundamentals for an elementary school student: rudiments, composition, and thrash metal. “I started learning stuff like Metallica,” The Rev says. “I started transcribing that stuff. I started with Carmen Appice and rudimentary basics and technique training. The music I was listening to was metal, so I started transcribing it.” It was an upward climb from there. “I started tackling more difficult stuff. I started getting into faster stuff, first Pantera, then Slayer, classics like that. Then I started getting into prog – Dream Theater and Rush. Then I started getting into funk, like Dave Weckl and Terry Bozzio. I tried to pick up as many things as I could from all of those influences. Then I joined a percussion ensemble at Harbor College in L.A. I was in that from sixth to eighth grade.” It took virtually no time for The Rev to impress his fellow students. After all, if being a drummer in a punk band impressed his female classmates, imagine what a double bass setup before puberty can do. “They loved it,” he says, smiling. “When you’re playing double bass and you’re in middle school, no one can believe it. I started in sixth or seventh grade. But no one ever taught me, so I didn’t really figure ˝i’ve never been able to stay in one place and i just like the excitement of getting out there and playing live and the whole lifestyle that comes along with it˝
out how to build up your endurance and stamina to just do straight sixteenth-notes as fast as you want until much later, until I was about 19 or so.” The Rev says he began to branch out and develop his own style of playing – and composition – between the ages of ten and sixteen, bolstered by the technical base he developed while under the tutelage of L.A. Harbor College professor Jeannette Wrate. “She was very influential in me being a musician in general,” he says. “She took me into her percussion ensemble, which kind of ended up being a band, and she taught me about music theory as well as drum theory. She’s always pumped me up and never failed to point out to me that she thought I had a lot of potential as a drummer. I think a lot of drum instructors don’t really influence you to try to write music; they mainly focus on drumming, you know?” That support was crucial to developing the fundamentals behind his current style of playing. “It was very important because I think technical training can help accelerate the learning process,” The Rev says. “For example, what would take someone without professional training a year to learn might take someone with good instruction, a month. It can accelerate the process an awful lot.”
FROM PUNK TO PANTERA. By his sophomore year of high school, The Rev parlayed his interest in girls and reckless abandon into playing with punk rock bands at parties. Far from the ideal student (he was kicked out in 2000 for “a whole slew of behavioral infractions”), The Rev began to put his energy full-force into the burgeoning scene, starting a metalcore-sounding Avenged Sevenfold with childhood friends M. Shadows and Zacky Vengeance and using the stage name “The Reverend Tholomew Plague.” Synyster Gates was added soon after. “We’d always been best friends growing up,” he says. “Right when the first album was being recorded, we added him because we needed that crazy lead influence and all his musical knowledge.” The ink still fresh on their high school diplomas, the bandmembers went into the studio to record what would become their first album, Sounding The Seventh Trumpet. It was a shoestring affair from day one – but the effort started the domino effect that would launch their career. “We pretty much fully funded the recording of our first album on our own, just doing lousy day job kind of stuff,” The Rev says. “That recording actually got noticed by the owner of Hopeless Records, who offered to sign us. That was step one, getting on that indie label and putting out Waking The Fallen, which got noticed by all the major labels. And now we’re on Warner Brothers.” With a major record label contract came a major recording, 2005’s City Of Evil. Recorded in Houston, the album spawned a solid showing on the charts, a licensing agreement with gaming giant Electronic Arts, a video by top director Wayne Isham, and an appearance in Guitar World’s list of 100 Greatest Guitar Albums Of All Time. The album’s popularity and subsequent tour also sparked opportunities unlike any the band had ever expected, bringing The Rev full circle with his idols. “The biggest headlining show that we’ve ever done was at the Gibson Amphitheater [in Los Angeles],” he says. “That was an overwhelming moment. Also, a great moment was ˝i just always think it’s really powerful when you’re doing any particular hand fill, if you throw the double bass constantly under it˝
the first time we went out on stage with Metallica. Oh, and meeting a lot of my idols, like Vinnie Paul. Those moments are always really rewarding.”

(DE)COMPOSING. Versed in playing guitar thanks to informal lessons from bandmate Gates, The Rev contributed heavily to writing the band’s new eponymous album. While its predecessor, City Of Evil, was written “conglomerately,” The Rev says he contributed guitar riffs and even lyrics to the 18 or 19 songs he laid down in the studio. “Four of the songs I wrote every riff and verse and chorus, and everyone else kind of had the same on the other songs,” he says. A self-admitted perfectionist, The Rev says the compactness and locked-in nature of the band’s new sound is partly the result of his continued concentration on developing his songwriting skills. “I’ve been focusing more on just choosing the proper fills and trying to be as creative as possible with them, not just your typical hand fill or hand and foot fill, but incorporating all four limbs and using the [Sabian] propeller [a prototype percussive element], and all the attachments I have on the kit,” he says. “Stuff that just fits each individual riff. Instead of playing as fast as possible all the time whenever possible – though there’s plenty of blindingly fast stuff and I push myself when it calls for it – but when it doesn’t, I take a lot of pride in finding the perfect part for the moment, the particular circumstance.”
The Rev says he gleaned ideas from combing through the band’s demo reels, extracting moments he liked and expanding on them. Trying new sound effects also proved beneficial. “I write every part out until I get it as perfect as possible,” he says. “An approach I took on this record was definitely to jam the songs out more and take things that I liked and develop them. Aside from incorporating different percussive aspects, I also would change up the toms on certain songs and I’d play patterns between the ride and Roto Toms on one of the songs.”
A lifelong fan of Oingo Boingo genius Danny Elfman – “he’s pretty much my musical hero” – The Rev wrote much of his creative contribution on the piano, and used the process as an opportunity to touch on his idol’s legacy by collaborating on the song “A Little Piece Of Heaven” with former Oingo Boingo members, keyboardist Marc Mann and guitarist Steve Bartek (the latter produces Elfman scores). “It’s a really interesting, crazy, Halloweenish song that we wrote that will possibly, almost certainly be on the record,” The Rev says. “Definitely fun for anyone to listen to – a good reason to get the album right there.” Nonetheless, offering up the best ideas to his bandmates is what brings most songs together, The Rev says. “Most of the best songs that we have is where everyone puts in their best parts and everyone just clicks,” he says. “There’s a trust there; there’s an openness. There’s no insecurity. We just write whatever we want and we’d be the first to say, ‘Nah, that riff kind of sucks,’ or ‘That’s awesome.’”
The Rev says he was actually surprised by the quality of some of his bandmates’ contributions, including the depth of some of the lyrical content. “Matt [M. Shadows] shocked me with a few of the tracks,” he says. “Being involved with the songs, I was surprised I could be so touched by it, or so pumped up by it.” Overall, The Rev says the album’s sound reflects the growth of the band over the last couple of years – a testament to its tenacity. “We’ve just naturally progressed as human beings,” he says. “We’ve never tried to make the same album twice and I think it’s really disappointing every time I buy an album and it’s a parody of the previous album. You can definitely expect new things. Overall, it’s ten times better of a record.”

“I love it; I live for it,” he says. “I’ve never been able to stay in one place and I just like the excitement of getting out there and playing live and the whole lifestyle that comes along with it. I like to party when the time to party is right, as do we all, I believe. Being in new countries every week is just awesome when you take in the foreign culture. When we go to other countries, we always make sure we have a couple days in between shows and get to see the places we want to see. It’s perfect – you’re on vacation and you’re working, too. I’m obsessed with seeing as much of the world as possible.” ˝
But touring is as much work as it is play. The Rev’s sleevelength collage of tattoos hide the brute behind the beauty, and he makes no concessions when it comes to preparing himself before a show, warming his hands for “five minutes on, two minutes off,” and doing stretches to “get the blood flowing. The first few shows are always tough – I’ve been playing balls-out with my hands for 16 years,” he says. “But it’s better to play, chill out all day and let the muscles rest, and then go all-out the next day.” But as meticulous as he is while composing, or playing, or even discussing the finer points of music theory, The Rev continues to try to play down his reputation as a party-hard rocker in the vein of Axl Rose or Sebastian Bach – despite having gone out for a night on the town with the pair in Prague. “Some things get blown up about us; there’s always hype out there,” he says. “We’re pretty much relaxed and doing business all day and then we get to unwind after the show at night. At this point, we’re mainly focused on our art and going out there and connecting with as many people as possible because that’s the truly rewarding thing of it. We’ve had our wild spells in the past, and they’ve been publicized and stuff, and we do like to have fun whenever we can, but mostly music is the focus these days.”
ACCESSING EXCESS. As traditional hard rock continues to slide down the charts – along with other styles, of course – Avenged Sevenfold is gathering its energy around the “long tail” concept, a term coined in 2004 by Wired editor- in-chief Chris Anderson that suggests focusing less on sales volume and more on career longevity. As Avenged Sevenfold nears the release date of their new album, The Rev says the band recognizes that its ever-expanding core audience is still the fuel that ignites their particular brand of fire. “All CD sales are going downhill, so it’s not like rock has the problem,” he says. “Metal and rock bands like us are actually on the uphill because we don’t rely as much on CD sales or radio play for the longevity in our career. The type of music we play, we have fans that are lifers, just like I’m a lifer for my favorite bands. It’s always been like an underground pulse. There’s just something about the type of music. We just want to get to the people that want to be a part of that core audience. We want to make a life out of it, you know?”
It’s those “lifers” who keep the band grounded and its vision focused, The Rev says. “I’m just proud and I’m touched when I see someone with a new Avenged Sevenfold tat, and now I always make sure I check them out if they’re sportin’ ˝one of the major aspects of it is the spectacle on stage, the pictures that you see of us, the musicianship˝ ( ) one. It makes you feel like you’re involved in a huge meaningful thing. That’s meaningful if you put someone else’s ink on your body. It’s more meaningful than listening to a pop song on the radio.”
Part of that meaning is the band’s image. According to The Rev, the way the band dresses and the way he and his bandmates refer to each other is a true manifestation of their personalities – not an act. The ink is real, and the piercings are legit; through the interview, he refers to his bandmates interchangeably by their stage and given names. “It’s honest,” he says, “and that honesty is the thing that you do have in common with a fan. “One of the major aspects of it is the spectacle on stage, the pictures that you see of us, the musicianship, and everything that goes into the songs and the music that we play,” he says. “It’s all very real and none of it is contrived in any way, shape, or form, and I think a lot of our fans can see that and feel it. When I see that in other artists, it’s much more attractive to me, and I want to follow it and be a part of it.”
Being a part of it is what keeps the Avenged Sevenfold bus rolling – never was that sentiment more evident to The Rev than when he reviewed footage from the band’s last world tour, a months-long jaunt documented in the recent release of its first live DVD, All Excess. But the band also recognizes the path it has already traveled and hasn’t had any Some Kind Of Monster moments yet, he says. “Those clips make me and all of us just feel great about the journey that we’ve taken to get to this point,” he says. “The fans that have come along with it. Just going from playing a backroom of a bar to a show for 80,000 people – that’s a wild ride that will continue. Like most bands, we’re a family, so family before band. If we broke up tomorrow, we’d still be friends.”
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:-D
pengertian surfaktan dan contohnya
Surfaktan adalah senyawa kimia yang jika terdapat pada konsentrasi rendah dalam sistem mempunyai sifat teradsorpsi pada permukaan antar muka pada sistem tersebut yang molekul-molekulnya mempunyai dua ujung yang berbeda interaksinya dengan air, yaitu ujung kepala yang suka terhadap air dan ujung ekor yang tidak suka dengan air.
Surfaktan terbagi atas anionik, kationik, nonionik dan amfoterik. Surfaktan akan berbusa dengan baik disegala jenis air dan akan dapat dibilas dengan mudah dan sempurna dalam shampoo modern, sabun telah diganti dengan bahan aktif yang disebut surfaktan. Sebagian besar shampoo kini dalam kemasan 2 in 1 , bahan pembersih sekaligus, conditioner . Bahan pembersihnya akan membersihkan rambut dan kulit kepala, sementara conditionernya akan membuat rambut mudah disisir ketika basah dan akan membuat rambut ketika kering lebiih tampak berisi tanpa tampak berterbangan. Pasalnya kimiawan sebelum tahun 1980-an percaya penuh bahwa tidak mungkin mencampurkan bahan pembersih dan conditioner, seperti disebut diatas pembersihnya adalah surfaktan anionik sedangkan conditionernya adalah surfaktan kationik
1.Surfaktan yang larut dalam minyak.
ada 3 yang termasuk golongan ini, yaitu senyawa polar berantai panjang, senyawa fluoro karbon dan senyawa silicon.
2.Surfaktan yang larut dalam pelarut air .
Golongan ini banyak digunakan antara lain sebagai zat pembasah, zat pembusa, zat pengemulsi, zat anti busa, deterjen, zat flotasi, pencegah korosi, dll. Ada 4 yang termasuk dalam golongan ini, yaitu surfaktan anion yang bermuatan negative, surfaktan yang bermuatan positif, surfaktan nonion yang tak terionisasi dalam larutan, dan surfaktan amfoter yang bermuatan negative dan positif bergantung pada ph-nya. Surfaktan menurunkan tegangan permukaan air dengan mematahkan ikatan-ikatan hydrogen pada permukaan. Hal ini dilakukan dengan menaruh kepala-kepala hidrofiliknya pada permukaan air dengan ekor-ekor hidrofobiknya terentang menjauhi permukaan air.
Jenis-jenis Surfaktan.:
a.Nonionic Detergents.:
Adalah surfaktan yang kepala atomnya tidak memiliki ion +
maupun ion -
b. Anionic Detergents :
Adalah surfaktan yang kepala atomnya memiliki ion +.
c. Cationic Detergents.
Adalah surfaktan yang kepala atomnya memiliki ion --.
d. Bile Detergents.
Adalah surfaktan yang ekor atomnya berbentuk segi enam.
penggunaan surfaktan
a.surfaktan sebagai emulsifier
b.surfaktan sebagai wetting agent
c.surfaktan sebagai foaming-anti foaming agent
d.surfaktan sebagai anti statik dan anti fogging agent
Saat ini surfaktan deterjen masih didominasi oleh produk turunan petrokimia yang bernama Linier Alkyl Benzene Sulfonat (LABS). Semakin tingginya harga minyak bumi dunia membuat beberapa pabrikan deterjen di Amerika dan Jepang sudah mulai menggunakan metil ester sulfonat (MES) berbasis minyak nabati. Beberapa produsen oleochemical bahkan pabrik biodiesel (metil ester) sudah memasang unit sulfonasi untuk bisa paralel membuat metil ester atau terus ke MES untuk bahan deterjen.
MES memiliki beberapa kelebihan dibandingkan surfaktan lainnya, yaitu antara lain kemampuan penyabunan yang baik; terutama yang berasal dari C16 dan C18 (dari minyak kelapa), toleransi yang baik terhadap kesadahan air, bersinergi baik dengan sabun (sebagai zat aditif sabun), daya larut dalam air yang baik, lembut dan tidak iritasi pada kulit, dan memiliki karakteristik biodegradasi yang baik.
Produksi Metil Ester Sulfonat
Produksi metil ester sulfonat dalam skala industri terdiri dari 4 (empat) tahap yaitu tahap sulfonasi, tahap pemucatan, tahap netralisasi, dan tahap pengeringan.
1. Tahap Sulfonasi
MES diproduksi melalui proses sulfonasi metil ester dengan campuran SO3/udara. Reaksi pengontakkan SO3 dan bahan organik terjadi di dalam suatu falling film reactor. Gas dan organik mengalir di dalam tube secara co-current dari bagian atas reaktor pada temperatur 45oC dan keluar reaktor pada temperatur sekitar 30oC. Proses pendinginan dilakukan dengan air pendingin yang berasal dari cooling tower. Air pendingin ini mengalir pada bagian shell dari reaktor. Hal ini bertujuan untuk menjaga kestabilan temperatur reaksi akibat reaksi eksoterm yang berlangsung di dalam reaktor.
Agar campuran MESA mencapai waktu yang tepat dalam reaksi sulfonasi yang sempurna, MESA harus dilewatkan kedalam digester yang memilki temperature konstan (~80oC) selama kurang lebih satu jam. Efek samping dari MESA digestion adalah penggelapan warna campuran asam sulfonat secara signifikan. Sementara itu, gas-gas yang meninggalkan reaktor menuju sistem pembersihan gas buangan (waste gas cleaning system).
2. Tahap Pemucatan (Bleaching)
Untuk mengurangi warna sampai sesuai dengan spesifikasi, digested MESA harus diukur didalam sistem kontinu acid bleaching, dimana dicampurkan dengan laju alir metanol yang terkontrol dan hidrogen peroksida sesudahnya. Reaksi bleaching lalu dilanjutkan dengan metanol reflux dan pengontrolan temperatur yang presisi.
3. Tahap Netralisasi
Acid ester yang terbentuk dalam proses sulfonasi bersifat tidak stabil dan mudah terhidrolisis. Oleh karena itu, pencampuran yang sempurna antara asam sulfonat dan aliran basa dibutuhkan dalam proses netralisasi untuk mencegah lokalisasi kenaikan pH dan temperatur yang dapat mengakibatkan reaksi hidrolisis yang berlebih. Neutralizer beroperasi secara kontinu, mempertahankan komposisi dan pH dari pasta secara otomatis.
4. Tahap Pengeringan
Selanjutnya, pasta netral MES dilewatkan ke dalam sistem TurboTubeTM Dryer dimana metanol dan air proses yang berlebih dipisahkan untuk menghasilkan pasta terkonsentrasi atau produk granula kering MES, dimana produk ini tergantung pada berat molekul MES dan target aplikasi produk. Langkah akhir adalah merumuskan dan menyiapkan produk MES dalam komposisi akhir, baik itu dalam bentuk cair, batangan semi-padat atau granula padat, dengan menggunakan teknologi yang tepat.
:-D
Surfaktan adalah senyawa kimia yang jika terdapat pada konsentrasi rendah dalam sistem mempunyai sifat teradsorpsi pada permukaan antar muka pada sistem tersebut yang molekul-molekulnya mempunyai dua ujung yang berbeda interaksinya dengan air, yaitu ujung kepala yang suka terhadap air dan ujung ekor yang tidak suka dengan air.
Surfaktan terbagi atas anionik, kationik, nonionik dan amfoterik. Surfaktan akan berbusa dengan baik disegala jenis air dan akan dapat dibilas dengan mudah dan sempurna dalam shampoo modern, sabun telah diganti dengan bahan aktif yang disebut surfaktan. Sebagian besar shampoo kini dalam kemasan 2 in 1 , bahan pembersih sekaligus, conditioner . Bahan pembersihnya akan membersihkan rambut dan kulit kepala, sementara conditionernya akan membuat rambut mudah disisir ketika basah dan akan membuat rambut ketika kering lebiih tampak berisi tanpa tampak berterbangan. Pasalnya kimiawan sebelum tahun 1980-an percaya penuh bahwa tidak mungkin mencampurkan bahan pembersih dan conditioner, seperti disebut diatas pembersihnya adalah surfaktan anionik sedangkan conditionernya adalah surfaktan kationik
1.Surfaktan yang larut dalam minyak.
ada 3 yang termasuk golongan ini, yaitu senyawa polar berantai panjang, senyawa fluoro karbon dan senyawa silicon.
2.Surfaktan yang larut dalam pelarut air .
Golongan ini banyak digunakan antara lain sebagai zat pembasah, zat pembusa, zat pengemulsi, zat anti busa, deterjen, zat flotasi, pencegah korosi, dll. Ada 4 yang termasuk dalam golongan ini, yaitu surfaktan anion yang bermuatan negative, surfaktan yang bermuatan positif, surfaktan nonion yang tak terionisasi dalam larutan, dan surfaktan amfoter yang bermuatan negative dan positif bergantung pada ph-nya. Surfaktan menurunkan tegangan permukaan air dengan mematahkan ikatan-ikatan hydrogen pada permukaan. Hal ini dilakukan dengan menaruh kepala-kepala hidrofiliknya pada permukaan air dengan ekor-ekor hidrofobiknya terentang menjauhi permukaan air.
Jenis-jenis Surfaktan.:
a.Nonionic Detergents.:
Adalah surfaktan yang kepala atomnya tidak memiliki ion +
maupun ion -
b. Anionic Detergents :
Adalah surfaktan yang kepala atomnya memiliki ion +.
c. Cationic Detergents.
Adalah surfaktan yang kepala atomnya memiliki ion --.
d. Bile Detergents.
Adalah surfaktan yang ekor atomnya berbentuk segi enam.
penggunaan surfaktan
a.surfaktan sebagai emulsifier
b.surfaktan sebagai wetting agent
c.surfaktan sebagai foaming-anti foaming agent
d.surfaktan sebagai anti statik dan anti fogging agent
cara kerja surfaktan :
Saat ini surfaktan deterjen masih didominasi oleh produk turunan petrokimia yang bernama Linier Alkyl Benzene Sulfonat (LABS). Semakin tingginya harga minyak bumi dunia membuat beberapa pabrikan deterjen di Amerika dan Jepang sudah mulai menggunakan metil ester sulfonat (MES) berbasis minyak nabati. Beberapa produsen oleochemical bahkan pabrik biodiesel (metil ester) sudah memasang unit sulfonasi untuk bisa paralel membuat metil ester atau terus ke MES untuk bahan deterjen.
MES memiliki beberapa kelebihan dibandingkan surfaktan lainnya, yaitu antara lain kemampuan penyabunan yang baik; terutama yang berasal dari C16 dan C18 (dari minyak kelapa), toleransi yang baik terhadap kesadahan air, bersinergi baik dengan sabun (sebagai zat aditif sabun), daya larut dalam air yang baik, lembut dan tidak iritasi pada kulit, dan memiliki karakteristik biodegradasi yang baik.
Produksi Metil Ester Sulfonat
Produksi metil ester sulfonat dalam skala industri terdiri dari 4 (empat) tahap yaitu tahap sulfonasi, tahap pemucatan, tahap netralisasi, dan tahap pengeringan.
1. Tahap Sulfonasi
MES diproduksi melalui proses sulfonasi metil ester dengan campuran SO3/udara. Reaksi pengontakkan SO3 dan bahan organik terjadi di dalam suatu falling film reactor. Gas dan organik mengalir di dalam tube secara co-current dari bagian atas reaktor pada temperatur 45oC dan keluar reaktor pada temperatur sekitar 30oC. Proses pendinginan dilakukan dengan air pendingin yang berasal dari cooling tower. Air pendingin ini mengalir pada bagian shell dari reaktor. Hal ini bertujuan untuk menjaga kestabilan temperatur reaksi akibat reaksi eksoterm yang berlangsung di dalam reaktor.
Agar campuran MESA mencapai waktu yang tepat dalam reaksi sulfonasi yang sempurna, MESA harus dilewatkan kedalam digester yang memilki temperature konstan (~80oC) selama kurang lebih satu jam. Efek samping dari MESA digestion adalah penggelapan warna campuran asam sulfonat secara signifikan. Sementara itu, gas-gas yang meninggalkan reaktor menuju sistem pembersihan gas buangan (waste gas cleaning system).
2. Tahap Pemucatan (Bleaching)
Untuk mengurangi warna sampai sesuai dengan spesifikasi, digested MESA harus diukur didalam sistem kontinu acid bleaching, dimana dicampurkan dengan laju alir metanol yang terkontrol dan hidrogen peroksida sesudahnya. Reaksi bleaching lalu dilanjutkan dengan metanol reflux dan pengontrolan temperatur yang presisi.
3. Tahap Netralisasi
Acid ester yang terbentuk dalam proses sulfonasi bersifat tidak stabil dan mudah terhidrolisis. Oleh karena itu, pencampuran yang sempurna antara asam sulfonat dan aliran basa dibutuhkan dalam proses netralisasi untuk mencegah lokalisasi kenaikan pH dan temperatur yang dapat mengakibatkan reaksi hidrolisis yang berlebih. Neutralizer beroperasi secara kontinu, mempertahankan komposisi dan pH dari pasta secara otomatis.
4. Tahap Pengeringan
Selanjutnya, pasta netral MES dilewatkan ke dalam sistem TurboTubeTM Dryer dimana metanol dan air proses yang berlebih dipisahkan untuk menghasilkan pasta terkonsentrasi atau produk granula kering MES, dimana produk ini tergantung pada berat molekul MES dan target aplikasi produk. Langkah akhir adalah merumuskan dan menyiapkan produk MES dalam komposisi akhir, baik itu dalam bentuk cair, batangan semi-padat atau granula padat, dengan menggunakan teknologi yang tepat.
:-D
Buka “www.google.com/translate” terus di translate web page ketikan alamat situsnya cth “http://friendster.com”
nah disebelah kanannya ada pilihan bahasa, ubah pilihan bahasa menjadi bahasa lain to english
(cth : arabic to english atau chinese to english atau france to english) dan........
selamat menikmati kembali situs yang di blok….
Selain itu, juga bisa pakai jasa dari situs ini:
http://www.gpass1.com
http://www.vtunnel.com
2 situs diatas cara menggunakannya cukup mudah, disana akan disediakan kotak untuk memasukan alamat site yang terblokir,
setelah kita masukan alamat yang kita mau; secara ajaib mereka akan mengantarkan ke tujuan kita. Asik banget!!!
Selamat menikmati kebebasan yang bertanggung jawab dalam berinternet.
nah disebelah kanannya ada pilihan bahasa, ubah pilihan bahasa menjadi bahasa lain to english
(cth : arabic to english atau chinese to english atau france to english) dan........
selamat menikmati kembali situs yang di blok….
Selain itu, juga bisa pakai jasa dari situs ini:
http://www.gpass1.com
http://www.vtunnel.com
2 situs diatas cara menggunakannya cukup mudah, disana akan disediakan kotak untuk memasukan alamat site yang terblokir,
setelah kita masukan alamat yang kita mau; secara ajaib mereka akan mengantarkan ke tujuan kita. Asik banget!!!
Selamat menikmati kebebasan yang bertanggung jawab dalam berinternet.
defines the word “deflorate” as “past the flowering state; having shed its pollen.” That seems wickedly apropos for the Black Dahlia Murder, who have indeed just past their flowering state as the “it” band of death metal. Their last album, 2007’s Nocturnal, was praised to the sky, and for good reason – it was a nimble, invigorating exercise that proved blast beats and Cookie Monster vocals could almost be populist. Such frightening musical elements never sounded quite as accessible before the Black Dahlia came along (at least not without losing their menace and/or becoming parody). I would hazard a guess that hailing from Detroit has something to do with BDM’s ear for melody. Barry Gordy, your precious juice runs through Trevor Strnad’s “voculars.”
Deflorate is another solid entry from Black Dahlia, strewn with rib-shattering drum work and too many epic mosh riffs to count (although I’d finger the triumphant intro/outro of “I Will Return” as the record’s tastiest jam, a beard-stroking old school Viking riff if ever I heard one). Strnad seems to have found some safe middle ground with his singing, refusing to shoot into registers nearly as comically high or low as prior outings. This vocal temperament serves to strengthen an already powerful collection of metal – even the brief solos whip up a significant amount of anger. Yet the songs on Deflorate don’t immediately grab the listener as they did on Nocturnal, a problem that lies either in the somewhat clumsy arrangements or the slightly warmed-over production. Were Black Dahlia an award-winning Romanian gymnast in the 1970s, this perfectly graceful floor routine would lose points for a shaky landing. They’d still make a made-for-TV movie about her life, though, and people would tune in from coast to coast.
One other serious point about Deflorate (aside from the insane cover featuring what appears to be an ancient Babylonian god with multiple colostomy bags nuking Encyclopedia Brown with his eyes) – it could very well be a concept album revolving around Michael Jackson’s life and death. If that sounds crazy, look at the song titles and their order: Michael began in the Jackson 5, a group full of “Black Valor”; he later made “Thriller,” which was something of a “Necropolis”; he took Emmanuel Lewis to the Grammys one year, certainly a “Selection Unnatural”; after the molestation trials, MJ was “Denounced, Disgraced” and his many plastic surgeries left him a “Christ Deformed”; his expiration caused a media “Death Panorama” as family members scrambled to ascend his “Throne Of Lunacy” as the “Eyes Of Thousand” watched; in the end, Michael Jackson proved the old idiom “That Which Erodes The Most Tender Of Things”; luckily, he “Will Return” via his final concert film.
If the BD Murder can come clean and admit Deflorate is a tribute to the King of Pop, I will personally buy them dinner the next time they visit the White Castle across the street from my apartment. Should they remain coy, I shall curse the Black Dahlia Murder but continue to enjoy their concise yet equally grand take on all that is doom and gloom. You can’t argue with thirty-three minutes of pummeling this epic (or epically tight) in any time zone. Even if BDM’s pollen count remains low, there seems little doubt they will continue to batter our thirsty, sex-starved ear drums on a consistent basis for years to come like the swarm of horny, evil, Rust Belt bees from the 7th Level of Hell they most assuredly are.
If Charles Bronson were to bust in here, put a gun to my head, and demand some kind of numerical rating, I’d give Deflorate three shitty nature jokes out of four.
^_^
Kamis, 03 Maret 2011
DEATHLINE CORPSE
Deathline Corpse berdiri pada tahun 2008 dengan formasi awal Jeffry (voc), Randy (Guitar 1), Madz (Guitar 2), Mulvy (Bass), Dimas (drum). Sempat terjadi komplain tentang Genre di tubuh DEATHLINE CORPSE
sendiri sehingga para personil masih bingung apakah Genre dari DEATHLINE CORPSE ini. Tak terpikirkan soal itu, kami yang masih disebut band kecil ini tetap meluncurkan amunisi di atas panggung dan membuat lagu sendiri. Pada Tahun 2010,DEATHLINE CORPSE berganti personil yaitu: Jeffry (voc),
Randy (Guitar 1), Madz (Guitar 2), Mulvy (Bass), ALDI (drum).
Terjadilah pergantian personil pada drummer yaitu ALDI. berbagai acara
kami lalui dengan semangat dan berusaha membuat lagu terbaru dari
kami. disinilah kami menemukan genre tetap di tubuh DEATHLINE CORPSE,
sebut saja DEATH METAL. Tak lupa kami mengucapkan terima kasih buat
yang selalu support.
Member:
First Formation : ( 2008 – 2010 )
1. Jeffry Valentine (Vocal)
2. Randy Amnesta (Guitar)
3. Madz (Guitar)
4. Mulvy (Bass)
5. Dimas (Drum)
Best Formation:
1. Jeffry Valentine (Vocal)
2. Randy Amnesta (Guitar)
3. Madz (Guitar)
4. Mulvy (Bass)
5. Aldi (Drum)
Contact Us :
Jl. Platuk 3 No.11 Rt. 20 Perumnas Kota Baru, Jambi (36137)
Telp 085764274143
Email: Deathlinecorpse@gmail.com
Links :
www.myspace.com/deathlinecorpse
www.reverbnation.com/deathlinecorpse
www.youtube.com/user/deathlinecorpse
www.facebook.com/deathlinecorpse
Langganan:
Postingan (Atom)