作　　者： ; ; ;

机构地区： 湖南师范大学化学化工学院精细催化合成研究所

出　　处： 《精细化工》 2004年第3期213-215,共3页

摘　　要： 研究了硅粉原料、氯化亚铜催化剂经微波预处理应用于直接法合成三甲氧基硅烷的工艺。探讨了微波预处理功率,以及在微波处理下,催化剂的量、Cu2O助剂对反应的影响。考察了串联反应器的反应效果。实验表明,硅铜混合物〔m(Si)∶m(Cu2Cl2)=10∶0 4〕经微波高火预处理3min,其活性成倍增加,在合成三甲氧基硅烷时,反应馏出液中w(三甲氧基硅烷)=44 2%,w(甲醇)=42 7%;添加Cu2O助剂后,反应效果显著提高,w(三甲氧基硅烷)=54 4%,w(甲醇)=34 6%;使用串联反应器时,w(三甲氧基硅烷)=72 3%,w(甲醇)=10 8%。 Trimethoxysilane is directly synthesized from silicon and methanol using cuprous chloride as catalyst.The Si-Cu_2Cl_2 mixture is pretreated by microwave piror to feeding methanol.Factors influencing the reaction such as the microwave power and the amount of Cu_2Cl_2 and Cu_2O are discussed,and the effect of series reactor is investigated.The activitity increases after the mixture〔 m (Si)∶ m (Cu_2Cl_2)=10∶ 0.4〕 is pretreated by microwave for 3 min at high power.In the distillate,the content of trimethoxysilane is 44.2% and the content of methanol is 44.7%.After adding Cu_2O,the content of trimethoxysilane is 54.2% and the content of methanol is 34.6%.In a series reaction system,the content of trimethoxysilane is 72.3% and the content of methanol is 10.8%.

关 键 词： 微波 三甲氧基硅烷 硅粉 氯化亚铜

领　　域： [理学] [理学]