CuO-Bi_2O_3/SiO_2-MgO催化合成1,4-丁炔二醇工艺条件研究  

Study on Process Conditions for Synthesis of 1,4-butynediol over CuO/Bi_2O_3/SiO_2-MgO Catalyst

作　　者：刘文胜 李海涛[2] 王韶安[2] 赵永祥[2] 

机构地区：[1]山西三维集团股份有限公司,山西洪洞041603 [2]山西大学化学化工学院精细化学品教育部工程研究中心,山西太原030006

出　　处：《河南化工》2014年第1期28-30,共3页Henan Chemical Industry

基　　金：国家自然科学基金(21073114)

摘　　要：采用溶胶—凝胶结合超临界干燥技术制备了一系列不同Mg含量的SiO2-MgO气凝胶载体,负载铜铋后应用于甲醛乙炔化制1,4-丁炔二醇反应,考察了工艺条件对催化反应性能的影响。结果表明,载体中Mg的引入可有效提高催化剂的反应性能,在Mg含量18%时甲醛转化率和1,4-丁炔二醇收率均达到最大值。在优选的工艺条件为5 g催化剂/100 mL甲醛溶液,反应时间25 h条件下,分别为92%和78%。催化剂表现出优异的使用稳定性。A series of highly homogenous SiO2 - MgO aerogel supports are obtained via sol - gel combined with supercritical drying. The effect of Mg contents on the catalytic performance of supported CuO - Bi2O3 catalyst employed in the synthesis of 1,4 - butynediol are investigated. Also the effects of process condi- tions on the catalytic performance are studied. The result shows that the introduction of Mg can improve catalytic performance. When Mg content reaches 18% ,the conversion of formaldehyde and yzeld of 1,4 - butynediol reached the maximum 92% and 78%. At the preferred process conditions are 5 g cat/100 mL formaldehyde solution, and the reaction time 25 h. Also, the catalyst showed high stability.

关 键 词：硅镁气凝胶 1 4-丁炔二醇 氧化铜 工艺条件 

分 类 号：O622.3[理学—有机化学]