有机硅单体生产中副产物的转化和利用  

CONVERSION AND UTILIZATION OF BYPRODUCTS IN DIRECT SYNTHESIS OF METHYLCHLOROSILANES

作　　者：卜志扬[1] 范宏[1] 李伯耿[1] 任不凡[2] 邵月刚[2] 陈为新[2] 

机构地区：[1]浙江大学高分子工程研究所聚合反应工程国家重点实验室,浙江杭州310027 [2]浙江新安化工集团股份有限公司,浙江建德311600

出　　处：《化工学报》2004年第5期842-845,共4页CIESC Journal

基　　金：浙江省重大科技攻关项目 (No 2 0 0 2C110 18)~~

摘　　要：The direct synthesis of methylchlorosilanes by reacting metallic silicon with methyl chloride in the presence of a copper catalyst yields low-boiling component,high-boiling component and methyltrichlorosilane as by-products. The proposed process for prepares monosilanes from the HBC fraction by reacting it with hydrogen chloride in the presence of an amine or amide catalyst. The conversion of disilanes into monosilanes is above 80% in general and the best is 86%.A method is also proposed for preparing dimethyldichlorosilane from methyltrichlorosilane,reacting simultaneously with the LBC components having a high content of methyl groups and with the HBC non-cleavable components,in the presence of a catalyst,in which the best conversion is 66.2%,and the best content of dimethyldichlorosilane in final products is 46.4%.The direct synthesis of methylchlorosilanes by reacting metallic silicon with methyl chloride in the presence of a copper catalyst yields low-boiling component, high-boiling component and methyltrichlorosilane as by-products. The process was proposed for preparing monosilanes from the HBC fraction by reacting it with hydrogen chloride in the presence of an amine or amide catalyst. The conversion of disilanes into monosilanes is above 80% in general and the best is 86%. A method is also proposed for preparing dimethyldichlorosilane from methyltrichlorosilane, reacting simultaneously with the LBC components having a high content of methyl groups and with the HBC non-cleavable components, in the presence of a catalyst, in which the best conversion is 66.2%, and the best content of dimethyldichlorosilane in final products is 46.4%.

关 键 词：有机硅单体 副产物 转化 

分 类 号：TQ264.1[化学工程—有机化工]