全文下载：2013020116
王广建1，张凤霞1 ，韩先正2
（1.青岛科技大学 化工学院，山东 青岛 266042；2.青岛海利尔药业集团股份有限公司， 山东 青岛 266109）
摘要： 采用不同方法制备了铜-钴复合型催化剂及纳米氢氧化铜催化剂，经XRD、BET手段对其微观结构进行了表征。结果表明，该铜-钴复合型催化剂的粒径比氢氧化铜粒径小，比表面积增加了28%。在铜-钴复合型催化剂上进行了三乙氧基硅烷的合成实验，最佳反应条件为：反应温度208 ℃，乙醇加料速度0.9 mol·h-1，催化剂用量为硅粉质量的4.8%，硅粉转化率达95.3%，三乙氧基硅烷的选择性达87.5%。
关键词：纳米铜-钴复合型催化剂; 直接法；三乙氧基硅烷
中图分类号： O 643.3文献标志码： A
Preparation and Performance of Nanocomposite Copper-Cobalt Catalyst for the Synthesis of Triethoxysilane
WANG Guang-jian1, ZHANG Feng-xia1 , HAN Xian-zheng2
（1.CollegeofChemical Engineering,QingdaoUniversityof Science and Technology,Qingdao266042,China;
2. Hailir Pesticides and Chemicals Group, Qingdao 266109, China）
Abstract:Nanocomposite copper-cobalt catalyst and Cu(OH)2 catalyst were prepared using ammonia as precipitant. The crystal morphology and specific surface area of the catalysts were characterized by XRD and BET. The results showed that compared with Cu(OH)2 catalyst, the nanocomposite copper-cobalt catalyst had a smaller particle diameter and the specific surface area increased by 28%. The nanocomposite copper-cobalt was used as a catalyst in the synthesis of triethoxysilane. Under the optimum conditions of catalyst dosage 4.8%(based on silicon), feeding rate of ethanol 0.9 mol·h-1 and reaction temperature 208 ℃, the silicon conversion and triethoxysilane selectivity were 95.3% and 87.5% respectively.
Key words:nanocomposite copper-cobalt catalyst; direct synthesis; triethoxysilane
收稿日期：2012-05-02
作者简介：王广建（1963—），男，教授.
