有机硅单体合成用复合铜粉催化剂的研究  

Research on Composite Copper Powder Catalyst for Synthesis of Silicone Monomer

作　　者：马国平 廖立 徐贵华 牛晓彦 杨笠 王林 李亚洲 蔡旻君 白洁 MA Guoping;LIAO Li;XU Guihua;NIU XiaoYan;YANG Li;WANG Lin;LI Yazhou;CAI Minjun;BAI Jie(Lanzhou Bluestar Cleaning Co.,Ltd.,Lanzhou 730060,China;Jiangxi Bluestar Xinghuo Silicones Co.,Ltd.,Jiujiang 332000,China)

机构地区：[1]兰州蓝星清洗有限公司,兰州730060 [2]江西蓝星星火有机硅有限公司,江西九江332000

出　　处：《有机硅材料》2024年第1期33-36,86,共5页Silicone Material

摘　　要：采用硅粉与氯甲烷,于直管式固定搅拌床反应器中合成甲基氯硅烷,通过计算二甲基二氯硅烷(M2)的选择性和硅转化率,评价3种复合铜催化剂的催化性能。结果表明,自产复合铜粉C的催化性能相对较佳,采用复合铜粉C的体系在整个反应期间的M2选择性均值为91.89%,硅转化率为59.24%。复合铜粉C具有更薄、更细、比表面积更高、松装密度更低、粒度更细的特点,有利于其在甲基氯硅烷合成反应中与硅粉形成更多的活性中心。Methylchlorosilane was synthesized by silicon powder and methyl chloride in a straight-tube fixed stirred bed reactor.The performance of three composite copper catalysts was evaluated by calculating the selectivity and silicon conversion rate of dimethyl dichlorosilane(M2).The results show that the catalytic performance of self-produced powder C is relatively good.The average selectivity of M2 with powder C is 91.89%in the reaction,and the silicon conversion rate is 59.24%.Powder C is thinner and finer,it also has higher specific surface area,and lower density and finer particle size,which is beneficial to form more active centers with silicon powder in the synthesis of methylchlorosilane.

关 键 词：复合铜粉催化剂 二甲基二氯硅烷 粒度分布 选择性 硅转化率 

分 类 号：TQ264.11[化学工程—有机化工]