Methyl methacrylate (mma) yakakosha organic makemikari zvinyorwa uye kunyanya kushandiswa mukugadzirwa kwegirazi, kuumbwa, mahedheni uye etc. ruzivo, Optical fiber, robotic uye mamwe minda.

Semunhu Monomer, mma anonyanya kushandiswa mukugadzirwa kwePolymethyl. ) anowedzera AcR, MBS uye semurume wechipiri mukugadzirwa kwema acrylics.

Parizvino, kune matatu marudzi emhando yepamusoro ekugadzira mma kumba uye kunze: Methacrylenzi nzira yekunyora Basf nzira uye lucite alpha nzira).

1, Methacrylamide hydrolysis estation nzira
Iyi nzira ndiyo tsika yekugadzira mma, kusanganisira iyo acetone cyanohydrin nzira uye iyo methacrylonitrile nzira, ese mushure meMethacrylwide yepakati hydrolysis, itsefication synthesis yeMMA.

(1) acetone cyanohydrin nzira (AK nzira)

Nzira yeACH, yekutanga kuvandudzwa neUS Lucite, ndiyo yekutanga maindasitiri ekugadzira nzira yeMMA, uye zvakare ndiyo huru yeMMA kugadzirwa kwacho munyika panguva iripo. Iyi nzira inoshandisa acetone, hydrocyanic acid, sulfutic acid uye methanol seyakagadzirwa zvinhu, uye matanho ezvekuita anosanganisira:

Iyo ACH maitiro ndeyehunyanzvi hukuru, asi ane zvinotevera zvakashata zvakashata:

○ Iko kushandiswa kweiyo ine chepfu hydrocyanic acid, iyo inoda nzira dzakasimba dzekudzivirira panguva yekuchengetedza, zvifambiso uye kushandiswa;

○ Kugadzirwa-kugadzirwa kwehuwandu hukuru hwecarid kunobva kwekusvibiswa kwezvakatipoteredza;

o Nekuda kwekushandiswa kweSulfutic acid, Anti-Corrosion zvishandiso zvinodiwa, uye kuvakwa kwechinhu kunodhura.

(2) methacrylonitrile nzira (Man Nzira)

Asahi Kasei akagadzira methacrylonitrile (murume) process on the ACH munzira, iyo isobutlene kana sulfac acid, iyo inoshatisa neSulfutic acid uye methanol kugadzira Mma. Murume ari nzira inosanganisira Ammonia oxidation reaction, ambication reaction uye hydrolysis esterufied maitiro, uye inogona kushandisa yakawanda yemidziyo yeACH chirimwa. Iyo hydrolysis yekuita inoshandisa yakawandisa sulfutic acid, uye gohwo remapakati methacrylamide inenge 100%. Nekudaro, iyo nzira ine chekuita neyakajaya hydrocyanic acid ne-zvigadzirwa, hydrocyanic acid zvakanyanya kuora, zvigadziriso zvekushandisa zvakakwira kwazvo, nepo njodzi dzemhoteredzo dzakakwira kwazvo.

2, isobutyleye oxidation nzira
Isolutyle oxidation nzira inodiwa yeTekinoroji yemakambani makuru epasi nekuda kwekushanda kwayo kwakakwirira uye nekuchengeterwa kwezvinhu zvakakwirira, uye Japan chete tekinoroji iri munyika uye yakavhara tekinoroji kuChina. Iyo nzira inosanganisira marudzi maviri eMitsubishi maitiro uye Asahi Kasei proces.

(1) Mitsubishi process (Isobutylene matatu-nhanho nzira)

MaJapan's Mitsubishi Rayon akagadzira maitiro matsva ekugadzira mma kubva kuSoutylene kana tertanol seyakawona oxidation nemhepo kuti uwane methacrylic acid (maa), uye ndokuzosheswa naMethanol. Mushure mekusindunziridzwa kweMitsubishi Rayon, Japan Ayahi Kasei Kambani, Japan Kyoto Kambani, Korea Lucky Company, etc. Yakasvika maindasitiri imwe neimwe. Iyo Shanghai Huyi Huayi Group Company yakaisa yakawanda yezvinhu uye zvemari zvizvarwa, zvakabudirira kuzvimirira uye nekuzvidzora kwesobutylene kuchena kugadzirwa mma tekinoroji, uye muna Zvita 2017 . Tekinoroji, zvakare kugadzira China iyo nyika yechipiri ive neiyo tekinoroji yeyunivhesiti yekugadzirwa kweMaa uye mma ne oxidation yeSobutylene.

(2) Asahi Kasei process (isobutylene maviri-nhanho maitiro)

Japan's Asai Kasei Corporation yakazvipira kare kukudziridzwa kwekugadzira nzira yekugadzirwa kweMMA, iyo yakaiswa musi wa1900,000-toni, Japan, uye gare gare yakawedzera kusvika kumatani zviuru zana. Nzira yehunyanzvi ine maviri-nhanho maitiro, kureva oxidy of isobutyne kana tert Liquid chikamu pasi pechiitiko chePD-PB Catalyst kugadzira mma zvakananga, uko iyo oxidative yekukona yeMal ndiyo yakakosha nhanho nenzira ino yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma iyi yekugadzira mma. Iyo Asahi Kasei nzira iri nyore, ine nhanho mbiri chete dzekuita uye chete mvura seyakagadzirwa ne-chigadzirwa, iyo yakasvibirira uye yekugadzira uye kugadzirira kweiyo catalyst iri kudiwa kwazvo. Zvinonzi Asahi Kasei

Mushure mekushanda pamwe neAsahi Kasei Tekinoroji, Kubva kwa2003 kusvika 2008, mabasa ekutsvagisa zvevhu, neChinese chemaScience, Tianjin University uye Harbin Engineering University kutarisa pane kusimudzira uye kuvandudzwa kwePD-PB CatalyStss, etc. Pashure peAu-SI CATELSS YAKAITWA NEMISADE YEMAHARA Diki Dziviriro Yekudzidza Nano-Goridhe Kugadzirira Kugadzirira maitiro, maitiro ekugadzirisa uye kusimudzira kusimudzira kwekuongorora kwenguva refu, uye zvino kushanda pamwe nemabhizinesi ekukudziridza tekinoroji yekuverenga.

3, ethylene carbonyl synthesis nzira
Iyo tekinoroji yeEtrayne Carbonyl Synthesis nzira yekuunganidza nzira inosanganisira basf maitiro uye ethylene-Proponic acid methyl ester maitiro.

(1) Ethylyerene-Proponic acid nzira (Basf maitiro)

Maitiro acho ane matanho mana: Etliyene ane hydroformyde kuti awane propolyehdehyde, Mal ari mweya oxiddehs methanol. Maitiro ndiwo nhanho yakakosha. Maitiro acho anoda matanho mana, ayo anokwana uye anoda michina yakakwirira uye yakakwira mari mari mutengo, nepo mukana wakadzika mutengo wezvinhu zvisina kugadzirwa.

Zvepamba zvakazara zvakagadzirwawo mune tekinoroji kukura kweiyo ethylene-procylene-formalitehdehyde synthesis yeMMA. 2017, Shanghai Huayi Group Company, mukubatana neNanjing Noao Midziyo Company uye Tianjin Yunivhesiti Matani ePropence Mukuwedzera, iyo Institute of English Injiniya yeChinese Chikoro cheStacience

(2) ethylene-methyl proyer maitiro (lucite alpha maitiro)

Lucite Alpha process mamiriro ezvinhu akadzika, chigadzirwa chechibereko chakakwira kuendeswa kune vekunze nyika.

Maitiro eAlpha anokamurwa kuita nhanho mbiri:

Nhanho yekutanga ndeyekuita kweiyo ethylene ne col uye methanol kugadzira methyl profired

Uchishandisa Palladium-based Homogeneous Carbonouslation Carlyst, iyo ine hunhu hwechiitiko chepamusoro, hupenyu hwepamusoro (99.9%) uye maitiro akareba anokoshesa, izvo zvisinganyanyokira kune chishandiso uye chinoderedza mari yekuvaka ;

Nhanho yechipiri ndeyekuita kwe methyl proyers ne formaldehyde kuumba mma

A Prevrietary Multi-Phase Catalyst inoshandiswa, iyo ine yakakwira mma sarudzo. Mumakore achangopfuura, mabhizinesi epamba akaisa chikumbiro chakanaka mukuvandudza tekinoroji yeMethyl uye formaldehyde kumisikidza kuMMA, uye akafambira mberi kwazvo muBed Dection zvikumbiro.