二甲基二氯硅烷水解反应探讨  

Discussion on the Hydrolysis Reaction of Dimethyldichlorosilane

作　　者：王议 王三跃 WANG Yi;WANG Sanyue(Sanyou Silicon Industry Co.,Ltd.,Tangshan 063305,Hebei;Xinte Energy Co.,Ltd.,Urumqi 830001,Xinjiang)

机构地区：[1]唐山三友硅业有限责任公司,河北唐山063305 [2]新特能源股份有限公司,乌鲁木齐830001

出　　处：《有机硅材料》2022年第5期67-70,共4页Silicone Material

摘　　要：以二甲基二氯硅烷、浓盐酸为原料合成二甲基二氯硅烷水解物,探讨了反应压力、停留时间、反应温度对二甲基二氯硅烷水解物黏度的影响,并在传统环路浓酸水解工艺基础上,增加氯化氢脱除装置(包括氯化氢脱除塔和水解物脱析罐)进行技术改进。结果表明:二甲基二氯硅烷水解反应的较佳条件为反应压力0.16~0.18 MPa、停留时间10~15 min、反应温度55℃;新增氯化氢脱除塔和水解物脱析罐后,水解物产品中的氯离子质量分数降至0.7×10^(-6)以下。Using dimethyldichlorosilane and concentrated hydrochloric acid as raw materials to synthesize hydrolysate of dimethyldichlorosilane,the effects of reaction pressure,residence time and reaction temperature on the viscosity of hydrolysate of dimethyldichlorosilane were discussed.On the basis of the traditional concentrated acid hydrolysis process,a hydrogen chloride removal device(including a removal tower of hydrogen chloride and a tank of hydrolysate separation)is applied for technical improvement.The results show that the optimal conditions for the hydrolysis reaction of dimethyldichlorosilane are as follows:the reaction pressure is 0.16-0.18 MPa,the residence time is 10-15 min,and the reaction temperature is 55℃,and the chloride ion content in the product is reduced below 0.7×10^(-6).

关 键 词：二甲基二氯硅烷 水解物 技术改进 氯离子 夹带 

分 类 号：TQ264.11[化学工程—有机化工]