BST型固体超强酸催化剂的制备  

Preparation of BST Solid Superacid Catalyst

作　　者：何柱生[1] 张新利[1] 

机构地区：[1]宝鸡文理学院化学化工系,陕西宝鸡721007

出　　处：《化学工业与工程》2005年第3期240-242,共3页Chemical Industry and Engineering

基　　金：陕西省教委项目(97JK035)

摘　　要：用制备纳米粒子的方法制出碱土金属的碳酸盐作为陶瓷球的致孔剂,获得了高比表面积的载体和BST型固体超强酸催化剂,在合成三醋酸甘油酯中应用此催化剂证明:对同种碳酸盐致孔剂来讲催化活性随比表面积的增大而增大;但对不同碳酸盐来讲,在含量相同时,催化活性并非完全随比表面积的增大而增大,而是以SrCO3,作为致孔剂时能获得最高的催化活性。The carrier and BST solid superacid catalyst of the high specific surface area are obtained by the method of shaped nanocells,which are shaped after the alkali-earth metal's carbonate in the pottery-balls has been solved by thin hydrochloric acid.BST-catalyst is used in the synthesis of glyceryl triacetate.The experiment results show:the catalyst activity increases with specific surface area of BST-catalyst shaped by the same alkali-earth metal's carbonate,while it doesn't increase when the cell is shaped by the no same carbonate.The highest activity is got when the cell is shaped by SrCO_3.

关 键 词：固体超强酸 载体 比表面 碱土金属碳酸盐 三醋酸甘油酯 

分 类 号：TQ426.62[化学工程]