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.
出处
《化学工业与工程》
CAS
2005年第3期240-242,共3页
Chemical Industry and Engineering
基金
陕西省教委项目(97JK035)
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
solid superacid
carrier
specific surface area
alkali-earth metal's carbonate
glycery1 triacetate
