Methyl Methacrylate (MMA) muhimmin abu ne mai guba da monster monomer, yafi amfani da kayan aikin polymer, kayan kwalliya, fiber na lantarki, fiber na lantarki, robotics da sauran filayen.

A matsayinka na kayan monomer, MMA anyi amfani dashi ne a cikin samar da polymetlass, PMC), kuma ana iya amfani dashi tare da acr, a matsayin na biyu monomer a cikin samar da acrylics.

A halin yanzu, akwai nau'ikan matakai guda uku don samar da MMA A gida da waje: Methakar Estannation Hanya (Mitsu Kasi KaseLhyl) da Ethylene Carbonyl Synthesis hanya).

1, Methacrylamai Hydrolysis Hydrolysis Hanya Hanya
Wannan hanyar ita ce hanyar samar da gargajiya na gargajiya mma, gami da hanyar wasan kwaikwayo ta acetone kuma hanyarta ta methacrylamai ta hydrolysis, gyaran gyara syntharides na MMA.

(1) Hanyar Acetone (Hanyar AC)

Hanyar da ta fice, ta fara fitar da hanyar samar da kayayyaki na masana'antu na MMA, kuma kuma shine tsarin samar da mafi girma a duniya a yanzu. Wannan hanyar tana amfani da acetone, acid hydrocyanic acid, acid sulfuricid da methanol kamar yadda albarkatun ƙasa suka haɗa da: Cynozydrinations, amiye da amsawa da hydrolysis.

Tsarin aiki yana balaga da fasaha, amma yana da waɗannan raunin da ke da waɗannan mummunan aiki:

○ Amfani da sosai guba hydrocyanic acid, wanda ke buƙatar matakan kariya a lokacin ajiya, sufuri da amfani;

○-samar da babban adadin ragowar acid (mafita mai ruwa tare da sulfuric acid da kuma ammonium tare da karamin adadin kwayoyin halitta), adadin wanda yake 2.5 sau ila na MMA, kuma shine babban tushen gurbataccen muhalli;

o Saboda amfani na sulfuric acid, kayan aikin anti-lalata ana buƙatar su, da kuma gina na'urar tana da tsada.

(2) Hanyar Methacryrilerile (hanyar mutum)

Asaahi Kasei ya samar da tsari na methacrylonitrile (mutum) bisa tsarin miyagu, wanda ya amsa da sarfurrylamai, wanda ya yi da acid-butatta don samar da Methacurleamide da Ammabaol acid da Methanol don samar da MMA. Hanyar da mutum ya ƙunshi ammonia oxidation ammonia, amiyewar amsawa da hydrolysis isasshen amsawa, kuma yana iya amfani da yawancin kayan aikin da aka shuka. A hydrolysis dauki amfani da wuce haddi sulfuric acid, da yawan amfanin ƙasa na matsakaici methacryamide kusan 100%. Koyaya, hanyar tana da guba mai guba ta hanyar-products, hydrocyanic acid, acid na sulfuric acid suna da matukar lalacewa, yayin da hadarin muhalli suna da girma sosai.

2, hanya ta isobutylene
Isobutylene hadawa da iskar shaye shaye ya fi so na fasahar da manyan kamfanoni a duniya saboda babban kariyar muhalli, amma Japan ta samu fasahar duniya ta katange da fasaha. Hanyar ta hada da nau'ikan mitsubishi guda biyu da Asahi Kasei.

(1) Mitsubishi

Mitsubii Rayis na Japan Rayon ta kirkiri sabon tsari don samar da MMABUDNE ko Teranol a matsayin iska don samun iskar shawa da iska (Maa), sannan a haɗa shi da methanol. Bayan Masana'antu na Mitsi Rayon Rayon, kamfanin Japan Asa Kasi na kasar Japan na Japan na Japan, da sauransu. sun sami cikakken masana'antu bayan wani. Kamfanin Compungiyoyin Kungiyar Hayi Hayi Hayi Hayi Hayi Hayi Hayi Hayi Hayi Hayani Hayi na mutum da yawa, kuma a watan Disambar da ke tattare da rashin daidaituwa da kuma nuna rashin nasara da kuma nuna rashin nasara da kuma sauke ayyukan masana'antu guda biyu. Kasancewa a cikin Heze, Lardin Shandong, lardin Shandong, na karya fasahar ta Japan kuma ta zama kamfani kawai da wannan fasaha a China. Fasaha, kuma sanya kasar Sin ta biyu kasar ta kasance da fasahar masana'antu don samar da MAD da MMA ta hanyar wuce hadawan na Isobutene.

(2) Asu'i Kasei tsari (isobutylene mataki-mataki)

Kasar Asahi Kasi Kasi Kasi Kasi Kasi Kasi Kasi Kasi Kasi Kasi Kasi Kasi Kasi Kasi Kasi Kasei ta kudade ta doke don samar da MMA, wanda aka samu nasarar samar da MMA, wanda aka samu nasarar samar da shi a cikin Kawasaki, Japan, kuma daga baya ya fadada zuwa tan 100,000. Hanyar fasaha ta ƙunshi matakin biyu-biyu, watau oxidation na Isobutylene ko Teranol mai ɗaukar hoto na PD-Bitan don samar da MEHACALEDOULE kai tsaye, inda cikin iskar shafe take a ƙarƙashin malami ne a cikin wannan hanyar don samar da Mma. Hanyar tsari na Asaah mai sauƙi ne, tare da matakai biyu kawai kuma kawai ruwa kamar yadda aka yi shi, amma ƙirar da shirye-shiryen mai da hankali ne. An ruwaito cewa Asahi Koi Kasi Kasi Kasi Kasei ta hade da aka kirkira daga ƙarni na farko na Pd-PB zuwa ga sabon ƙarni na AU-Ni mai kara kuzari.

Bayan Masana'antu na Asahi Kasei Fasaha na Asahi Kasei zagaye na boom, wakilin wanda Cibiyar Kimiyya ta Dalian, ta cika inganta aiwatar da aikin jirgin sama da tsayayyen yanayin binciken.

3, Ethylene Carbonyl Synthyl
Fasaha na Ethylene Carbonyl Synthesization hanyar masana'antu ta hanyar masana'antu ta hanyar sarrafa basf da ethylene methynl tsari.

(1) Hanyar-Popionic acid (tsarin kayayyaki)

Tsarin ya ƙunshi matakai huɗu: ethylene an haɗa shi don samun propandehyde, da mal iska ta rabu da foman gyara da methanol. Amsawar ita ce mabuɗin. Tsarin yana buƙatar matakai huɗu, wanda yake da cumbersome kuma yana buƙatar manyan kayan aiki da tsada mai tsada, yayin da fa'idar shine karancin kayan abinci.

An kuma yi su na gidajen na cikin gida a cikin ci gaban fasaha na Ethylene-propylene-Foraldehyde Syntheses na MMA. 2017, Shanghai Rukunin Kamfanin, tare da hadin kai tare da Nanjing Nooo sabon kayan kamfanin da Tianjin, ya kammala gwajin matukan jirgi 1,000 na kayan aikin masana'antu na ton 90,000. Bugu da kari, Cibiyar Zamanin Kwalejin Kimiyya ta Sin, tare da hadin gwiwar Kamfanin Henan da kungiyar sinadarai, sun kammala aikin matukan jirgi 1,000 da aka samu nasarar aiki a cikin 2018.

(2) Eltylene-methyl propion tsari (Luciite Phap tsari)

Tsarin Alpha na yau da kullun shine m, yawan amfanin ƙasa yana da yawa, farashin kayan aiki yana da sauƙin sarrafawa, a halin yanzu ba a canza shi ba ga duniyar waje.

Alpha tsari tsari ya kasu kashi biyu:

Mataki na farko shine dauki na ethylene tare da co da methanol don samar da propyl profionate

Amfani da PalLadium-tushen aiki mai kara kuzari, wanda ke da halayen babban aiki, babban zabi (99.9%) da rayuwar masarufi, wanda ke da karancin jari ga na'urar kuma yana rage hannun jari na daɗaɗa;

Mataki na biyu shine dauki na ptethyl prionate tare da formydhyde don samar da MMA

Ana amfani da wani ɓangare na ɓangare da yawa, wanda ke da High MYLEL SAD. A cikin 'yan shekarun nan, kamfanoni na gida sun kashe babbar sha'awa a cikin ci gaban fasaha na methyl producation da kuma gyara mai kara a kan batun mai kudi.