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以十二烷基三甲基氯化铵、四丁基溴化铵为相转移催化剂,以丙二醇等组分为稳定剂,以30%盐酸等组分为pH调节剂,在充入N2和CO2使釜压达0.1～0.12MPa条件下,将γ-氯丙基三甲氧基硅烷以及NaHS溶液分别打入反应釜进行合成反应。反应液经分层、脱色、蒸馏等工序获γ-巯丙基三甲氧基硅烷。该工艺具有反应温度低、反应时间短、产品纯度高达98.5%(优级品99%以上)质量稳定、综合成本低等优点,有较好的应用价值和工业化前景。
With dodecyltrimethylammonium chloride, tetrabutylammonium bromide as phase-transfer catalyst, propylene glycol and other components as a stabilizer, 30% hydrochloric acid and other components as a pH regulator, filled with N2 and CO2 The autoclave pressure reaches 0.1 ~ 0.12MPa under the conditions, the γ-chloropropyl trimethoxysilane and NaHS solution respectively into the reaction vessel synthesis reaction. The reaction solution was layered, bleaching, distillation and other processes were γ-mercaptopropyl trimethoxysilane. The process has the advantages of low reaction temperature, short reaction time, high product purity of 98.5% (excellent product of more than 99%), stable quality and low overall cost, and has good application value and industrialization prospect.