1.Cov khoom siv tshuaj lom neeg:
Cov kua daj daj ntshiab. Muaj ntxhiab tsw phem. Nws tsis yaj hauv dej thiab tuaj yeem sib xyaw nrog ethanol, ether, thiab acetic acid.
2. Lub Hom Phiaj:
Siv ua tus neeg sawv cev passivating rau cov kuab tshuaj, catalysts, tshuaj tua kab intermediates, coking inhibitors, thiab lwm yam. Dimethyl disulfide reacts nrog cresol los tsim 2-methyl-4-hydroxy anisulfide, thiab tom qab ntawd condenses nrog O2, O-dimethyl phosphoryl sulfide chloride hauv Chemicalbook alkaline nruab nrab kom tau txais Fenthion. Qhov no yog cov tshuaj tua kab organic phosphorus zoo thiab tsis muaj tshuaj lom nrog kev tswj hwm zoo heev rau cov kab laum mov, cov kab mob plawv taum pauv, thiab cov kab laug sab gadfly. Nws kuj tseem siv tau ua tshuaj kho tsiaj kom tshem tawm cov kab laug sab cowfly thiab cov ntshauv ntawm phab ntsa nyuj.
3. Txoj kev tsim khoom:
①Nws tau txais los ntawm kev sib xyaw ntawm Dimethyl sulfate thiab Sodium sulfide. Ntxiv cov hmoov sulfur rau hauv Sodium sulfide kua hauv qab kev sib xyaw, tsa qhov kub kom txog 80-90 ℃, sib xyaw rau 1 teev, thiab txo qhov kub ntawm Chemicalbook kom txog li 30 ℃; Dimethyl sulfate raug tso rau hauv lub lauj kaub sib xyaw, qhov sib xyaw txuas ntxiv mus rau 2 teev, thiab tom qab ntawd distilled, sawv rau txheej. Tom qab sib cais cov kua alkali pov tseg, cov khoom tiav tau txais los ntawm kev distillation.
②Dimethyl disulfide yog synthesized los ntawm Dimethyl sulfate txoj kev hauv kev lag luam.
Na2S+S → Na2S2Na2S2+(CH3) 2SO4 → CH3SSCH3+Na2SO4
Muab cov khoom khov kho Sodium sulfide thiab dej rau hauv lub lauj kaub tshuaj tiv thaiv, ua kom sov, tswj qhov kub ntawm 50 ~ 60 ℃ kom yaj cov sodium sulfurized, tom qab ntawd ntxiv equimolar sulfur hauv cov khoom sib xyaw, ua kom sov rau 1 teev, txias rau 45 ℃, pib tso Dimethyl sulfate, ua kom qhov kub ntawm cov tshuaj tiv thaiv ntawm 40 ~ 45 ℃, ua kom sov rau 1 teev tom qab ntxiv, thiab tom qab ntawd ua kom cov khoom Dimethyl disulfide qhuav. Tsis tas li ntawd, Dimethyl disulfide kuj tseem tuaj yeem tsim los ntawm methyl mercaptan txoj kev.
③Nws yog tsim los ntawm cov tshuaj tiv thaiv ntawm iodomethyl magnesium thiab Disulfur dichloride. Nws yog tsim los ntawm cov tshuaj tiv thaiv ntawm sodium disulfide nrog sodium methylsulfate. Methyl Sodium thiosulfate yog npaj los ntawm kev cuam tshuam Bromomethane nrog Sodium thiosulfate, thiab tom qab ntawd cua sov.
4. Cov yam ntxwv ntawm kev khaws cia thiab kev thauj mus los:
Kev ua pa thiab ziab qhov kub qis ntawm lub tsev rau khoom; Khaws cia cais ntawm cov tshuaj oxidants thiab cov kua qaub
5.Tus neeg tua hluav taws
Hmoov qhuav, xuab zeb qhuav, carbon dioxide, ua npuas dej, 1211 tua hluav taws
Tam sim no, Jinan ZhongAn Industry Co., Ltd tseem niaj hnub muab DMDS rau cov lag luam loj. Thaum lub Cuaj Hlis xyoo no, Jinan ZhongAn Industry Co., Ltd yuav nthuav peb cov kab ntau lawm kom tau raws li qhov xav tau ntawm ntau tus neeg siv khoom. Peb txais tos cov neeg siv khoom los ntawm thoob plaws lub ntiaj teb los sab laj nrog peb. Peb lub tuam txhab kuj tau txais daim ntawv pov thawj ISO9001. Thov so kom paub tseeb tias cov khoom zoo.
Lub sijhawm tshaj tawm: Lub Xya Hli-26-2023
