Methyl Methacrylarlate (MMA) muhimmin abu ne mai guba da monlymer monomer, yafi amfani da kayan aikin polymer, da sauransu abu ne mai tsayi don Aerospace, lantarki bayani, fiber na optical, robotics da sauran filayen.

A matsayinka na kayan monomer, MMA anyi amfani dashi a cikin samar da polymetl methacrylate (wanda aka fi sani da shi), kuma ana iya amfani dashi tare da wasu kaddarorin daban-daban, kamar yadda don kera polyvinyl chloride (PVC ) Addidididididididididididides acr, mbs da kuma 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: Methacrylamai disdrolyrilile hade (mettubrylamai hadawa da iskar iskar da Asabyne carbonyl) da kuma ethylene carbonyl synthesis hanya ( Hanyar Basf da Hanyar Alpha na Lucite).

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;

○-samarwa da babban adadin ragowar acid (mafita mai kyau tare da sulfuric acid da kuma ammonium cisulfate a matsayin da na wani adadin kwayoyin halitta), adadin wanda yake 2.5 sau da yawa, kuma mai mahimmanci ne 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 kirkiro da tsari na Methacrylonitrile (mutum) wanda ya danganta da AC AC ACD don samun Methacrylelade, wanda ya yi da acid-butatta don samar da sad 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 gida na gida Hayi Hayi Hayi Hayi Hayi Hayi Hayi Hayi Hayi Hayi na mutum da yawa da kuma kudi, kuma bayan shekaru 15 na ci gaba da rashin daidaituwa na samarwa MMA, kuma a cikin Disamba 2017 , an kammala kuma a yi aikin masana'antu 50,000-ton Mma a cikin haɗin gwiwar, lardin Shandong Huari yana cikin Hezei da Kamfanin Kan Kasancewar Japan kuma ya zama kamfanin da ke ƙasa 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 Isoobutylene ko Teranol mai ɗaukar hoto a ƙarƙashin aikin oxide a ƙarƙashin mala'iku na oxide na oxive a cikin Liquid lokaci a karkashin aikin PD-PB PB ya samar da MMA kai tsaye, inda hadayar kayewa na mal ne na malla a 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 A kan ci gaba da haɓaka masu kunnan PD-PD, da dai sauransu bayan 2015, Binciken Gida a Au-NI na Cibiyar Injiniya, wakilin Kimiyya ta Dalian, ya sami babban ci gaba a cikin Nazarin kananan matukan jirgi, sun kammala hana tsarin girke-girke na Nano-zinariya, kuma yanzu yana hadin gwiwar fasahar aiki don haɓaka fasahar masana'antu.

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 hydrormylate guda hudu don samun propideydhyde, mal iska ta rabu da fompulyed da fomindyde da tsarkakewa don samar da mma ta hanyar hade 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 alha na yau da kullun shine m, yawan amfanin ƙasa yana da yawa, farashin kayan abinci yana da sauƙi, da kuma ƙarancin yanki yana da matukar mahimmanci ga wannan fasaha kuma ba shine ba canjawa zuwa ga kasashen 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 Carbonestal, wanda ke da sifofin manyan ayyuka, babban zabi (99.9%) da rayuwa mai laushi, wanda ke da karancin rai ga na'urar kuma yana rage hannun jari na babban jari ;

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 production, amma rayuwa mai kara ta hanyar kwaskwarima ba tukuna isa ga masana'antu don masana'antu aikace-aikace.