Methyl methacrylate (mma) ni ibintu byingenzi byingenzi byimiti fatizo kandi bikoreshwa cyane mumusaruro wibirahure amakuru, fibre ya optique, robotike nibindi bice.

Nka monomer yibintu, MMA ikoreshwa cyane mumusaruro wa methacrylate ya Polymethyl (PMMma), kandi irashobora kuba ihuriro ryibindi bicuruzwa, nko gukora ibipimo bitandukanye, nko gukora phloride (PVC ) Ibisobanuro ACR, MBS kandi nkumuhanga wa kabiri mugukora acrylics.

Kugeza ubu, hari ubwoko butatu bwo gukura bwo gukora MMA mu rugo no mu mahanga: Inzira ya IssuzuCryne (Mitsubishi Uburyo bwa Basf hamwe nuburyo bwa Alca.

1, methacrylamide Hydrolyse Inzira Yerekana Inzira
Iyi nzira nuburyo gakondo bwa MMA, harimo nuburyo bwa Acetone cyahhhydrin hamwe nuburyo bwa methacrylonitrile, haba nyuma yuburyo bwa methacrylamide Hagati ya methacryside HYDROLSIDE HYDROLSIDE, Sythessisi ya MMA.

(1) acetone cyanohydrin (uburyo bwa ACH)

Uburyo bwa ACH, byateye imbere na Amerika, ni uburyo bwambere bwo kubyara inganda ya MMA, kandi nacyo ni inzira yumusaruro wa MMA kwisi muri iki gihe. Ubu buryo bukoresha acetone, acide ya hydrocyani, aside sulfuric na methanol nkibikoresho fatizo, hamwe nintambwe ya cyanhihydrisation, kubyerekeranye na HydrolyIbisubizo.

Inzira ya ach irakuze mu buryo bwa tekiniki, ariko ifite ibibi bikomeye bikurikira:

Gukoresha aside hydrocyanic yuburozi bwinshi, busaba ingamba zo gukingira cyane mugihe cyo kubika, gutwara no gukoresha;

○ By-Kubyaza umusaruro munini wa Acide (igisubizo cya acide cya sulfuric na aside hamwe na amimonium birimo ibintu bito), inshuro 2.5 ~ 3.5. isoko yo kwanduza ibidukikije;

o Kubera gukoresha aside ya sulfuric, ibikoresho byo kurwanya ruswa, kandi kubaka igikoresho bihenze.

(2) Uburyo bwa methacrylonitrile (uburyo bwabantu)

Asahi Kasei yateje imbere inzira ya methacrylonitrile (umugabo) ishingiye ku nzira ya AC AC ACH, Isobutol ni iyamakuru yo kunyerera ngo abone matmonide na methanol gutanga aside sulfuric na methanol kubyara Mma. Umuhanda wa mugabo urimo reaction ya ammonia, imurikation reaction na hydrolyyedics yo gukomera, kandi irashobora gukoresha ibikoresho byinshi byikimera cya ACH. Ibitekerezo bya hydrolysis bikoresha aside sulfuric sulfuric, kandi umusaruro wa methacrylamide hagati ni hafi 100%. Ariko, uburyo bufite acide yuburozi bwinshi nibicuruzwa, aside hydrocyanic na aside sulfuric ni bibi cyane, ibisabwa ibikoresho byimyitwarire biri hejuru cyane, mugihe ingaruka zibidukikije ari ndende cyane.

2, Isbubutylene Okiside
Isobutylene Okiside yabaye inzira ikoranabuhanga yahisemo kumasosiyete atoboye ku isi kubera imikorere yayo agenga ibidukikije, ariko Ubuyapani bwahoze bufite ikoranabuhanga mu Bushinwa. Uburyo burimo ubwoko bubiri bwa Mitsubishi na gahunda ya Asahi Kasei.

(1) Inzira ya Mitsubishi (Isobutylene uburyo butatu)

MITSUBISHI Rayon yateje imbere inzira nshya yo gukora MMA muri Isobutylene cyangwa Tert-Butanol nk'ibikoresho bibisi, impfizi y'ibirimo kugira ngo ibone acide methacryc. Nyuma y'inganda za Mitsubishi Rayon, mu Buyapani Asahi Kasei Sosiyete, Ubuyapani Kyoto Monesiyete, muri Koreya Amahirwe yo Guhuza, n'ibindi. Isosiyete yo mu matsinda ya Shanghai Hosuai Huayi ishora mu buryo bw'itsinda ry'abantu n'imiryango 15, kandi nyuma yimyaka 15 yimiterere y'ibisekuru bibiri, byatsinze byigenga Byarangiye kandi bigakora igihingwa cy'inganda 50.000-toni mu isosiyete ihuriweho na venture ya dongming huhuang iherereye i Heze, Intara ya Shandong, kumena ikoranabuhanga ryonyine ry'Ubushinwa. Ikoranabuhanga, kandi rituma Ubushinwa bwa kabiri bwo gukora ikoranabuhanga rifata inganda ryakozwe na Maa na MMA by okidation ya Isobutylene.

(2) inzira ya Asahi Karaho (Isobutylene Inzira ebyiri)

Isosiyete ya Asahi Kahi Kahi Kasiai igihe yamaze igihe kinini ryiyemeje guteza imbere uburyo bwo gushimangira uburyo bwa MMA, bwateguwe neza kandi bugashyirwa mu gihingwa cy'inganda cya 60.000 muri Kawasaki, mu Buyapani, nyuma byagutse kuri toni 100.000. Inzira ya tekiniki igizwe na intambwe ebyiri, ni ukuvuga okiside ya Isobutylene cyangwa Tert-Butanol muri Grose Mubikorwa bya Mo-Bike Icyiciro cyamazi munsi yumurimo wa pd-pb catalyst kugirango utange mma mu buryo butaziguye, aho ubushishozi bwa mal ari intambwe yingenzi muriyi nzira yo kubyara mma. Uburyo bwo gutunganya uburyo bworoshye bworoshye, hamwe nintambwe ebyiri gusa zo kwitwara no gusa amazi nigicuruzwa, nicyatsi kibisi no gutegura ibidukikije no gutegura ibishoboka byose birasaba cyane. Biravugwa ko catalite ya Asahi Kasidaire ya Asahi Kaxidion yazamuwe kuva mu gisekuru cya mbere cya PD-PB ku gisekuru gishya cya AU-NI CATALYST.

Nyuma y'inganda za tekinoroji ya Asahi Kahiai, kuva 2003 kugeza 2008, ibigo by'ubushakashatsi mu gihugu byatangiye gukora ubushakashatsi muri kariya gace, Ikigo cy'ubushakashatsi muri kaminuza cya Tiboni gisanzwe, Ikigo cy'Ubushinwa na Harbin na Harbin Na kaminuza y'ubwubatsi na Harbin. Ku iterambere no kunoza katali ka PD-PB, n'ibindi nyuma ya 2015, ubushakashatsi bwo mu gihugu kuri AU-Ni Catalsts yatangiye Ikigo cy'Ububiko, gihagarariye Ikigo cya Dalian, Ishuri Rikuru ry'Ubushinwa, ryateye imbere cyane muri Kwiga umuderezi muto, byarangije uburyo bwo gutegura gahunda ya Nano-zahabu-zahabu-yakozwe kandi ubu bufatanye n'iterambere ry'ibizamini.

3, Ethylene Carbonyl Synthes Route
Ikoranabuhanga rya Ethylene Carntonyl Sybonyl Syntos Inganda rikubiyemo inzira ya Basf na Ethylene-aside menthionel ester gahunda.

(1) Uburyo Acide-Porogaramu ya acide (inzira ya Basf)

Inzira igizwe nintambwe enye: Ethylene ni hydroformated kugirango ubone prooyiyaldehyde, progionaldehyde ifite umuvuduko wa commaldehyde kugirango itange maal methanol. Igisubizo nintambwe yingenzi. Inzira isaba intambwe enye, zisa nigitoni kandi gisaba ibikoresho byo hejuru nibiciro byishoramari kinini, mugihe inyungu nigiciro gito cyibikoresho fatizo.

Inyamaswa zo mu rugo nazo zakozwe mu iterambere ry'ikoranabuhanga rya Ethylene-propylene-formaldehyde synthesis ya MMA. 2017. Byongeye kandi, Ikigo gishinzwe imikorere y'ubwubatsi bw'ishuri ry'ubushinwa, ku bufatanye n'ingufu za Henan, ndangije igihingwa cy'imiti 1000 kandi kigerwaho neza cy'inganda kandi kigerwaho neza mu bikorwa bihamye muri 2018.

(2) Ethylene-methyl gahunda yerekana (inzira ya Lucite

Ibihe bya Lucite uburyo bwo gukora ibintu byoroheje, umusaruro wibicuruzwa ni mwinshi, ibihingwa byishoramari nibiciro byigice kimwe biryoha, kandi igipimo cyibikoresho bimwe kirimo kugenzura byihariye kwikoranabuhanga kwisi kandi ntabwo yimuriwe ku isi.

Inzira ya Alpha igabanyijemo intambwe ebyiri:

Intambwe yambere nigisubizo cya Ethylene hamwe na methanol kugirango itere methyl yerekana

Gukoresha palladium ishingiye ku mibonano mpuzabitsina ya palla. ;

Intambwe ya kabiri ni reaction ya methyl isobanura hamwe na formaldehyde kugirango ikore mma

Impingamubiri-yicyiciro cyicyiciro cyinshi ikoreshwa, ifite uburyohe bwa MMA. Mu myaka yashize, imishinga yo mu rugo yashoye ishyaka ryinshi ry'ikoranabuhanga rya Methyl yerekanaga MMA, kandi ikaba yarateye imbere mu iterambere rya mma, kandi ubuzima bwa catalyst Porogaramu.