Hauv cov xov xwm tsis ntev los no, cov tshuaj lom neeg dimethyl disulfide (DMDS) tau ua rau muaj nthwv dej thoob plaws ntau yam kev lag luam vim nws cov ntawv thov ntau yam thiab kev txhim kho tas mus li.

Dimethyl disulfide, ib yam kua tsis muaj xim mus rau daj daj nrog ib qho tsw ntxhiab tsw qab, tau pom nws qhov chaw nyob hauv ntau qhov chaw. Hauv kev lag luam roj av, nws ua lub luag haujlwm tseem ceeb ua tus neeg sawv cev ua ntej sulfurizing rau cov catalysts siv hauv cov txheej txheem roj av hydrodesulfurization.

Ntxiv mus, DMDS yog ib qho khoom siv tseem ceeb hauv kev tsim cov tshuaj tua kab. Nws ua haujlwm ua ib qho nruab nrab hauv kev tsim cov tshuaj tua kab xws li fenthion. Piv txwv li, nws reacts nrog cresol los tsim 2 - methyl - 4 - hydroxyanisole sulfide, uas tom qab ntawd ua tiav ntxiv los tsim fenthion, ib qho tshuaj tua kab organophosphorus uas muaj tshuaj lom tsawg heev. Cov tshuaj tua kab no siv dav los tswj cov kab tsuag xws li cov kab laum mov, cov kab laum taum pauv, thiab cov kab laug sab gadfly, thiab tuaj yeem siv rau hauv kev kho tsiaj kom tshem tawm cov kab laug sab thiab cov kab laum.

Hauv kev ua tshuaj lom neeg, DMDS siv los tsim lwm yam tshuaj sulfur uas muaj cov tshuaj tseem ceeb. Nws tuaj yeem siv los ua cov khoom methylsulfonyl chloride thiab methylsulfonic acid, uas muaj cov ntawv thov hauv cov txheej txheem tshuaj sib txawv.

Kev ua lag luam thiab kev tsim khoom ntawm DMDS kuj tseem tab tom hloov zuj zus. Xyoo 2023, thawj lub Rooj Sab Laj Sib Pauv Kev Lag Luam Dimethyl Disulfide hauv tebchaws tau muaj nyob rau hauv Yiwu County. Lawv tau tham txog cov cib fim thiab cov teeb meem uas kev lag luam DMDS ntsib, qhia nws cov txheej txheem tsim methyl mercaptan sulfidation hauv tebchaws rau kev tsim DMDS. Cov txheej txheem no tsis yog tsuas yog ua kom muaj cov khoom zoo xwb tab sis kuj ua rau kev siv cov roj pov tseg thiab cov roj av ntau tshaj plaws, txo qhov cuam tshuam rau ib puag ncig piv rau cov txheej txheem ib txwm muaj.

Raws li kev lag luam txuas ntxiv txhim kho thiab nrhiav kev daws teeb meem zoo dua thiab ruaj khov dua, dimethyl disulfide yuav tsum ua lub luag haujlwm tseem ceeb dua yav tom ntej, tsav tsheb kev tsim kho tshiab thiab kev loj hlob hauv roj av, tshuaj lom neeg, thiab kev ua liaj ua teb.