低碳链饱和醇对L沸石合成的影响  

Influence of Short Carbon Chain Saturated Alcohols on the Synthesis of Zeolite L

作　　者：詹予忠[1] 李晓旭[1] 王法 陈宜俍[1] 

机构地区：[1]郑州大学化工与能源学院,河南郑州450001 [2]惠生工程(中国)有限公司,河南郑州450052

出　　处：《郑州大学学报（工学版）》2013年第3期38-41,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：中国石油天然气总公司项目(09-YK-05-36)

摘　　要：以白炭黑和偏铝酸钾为原料,低碳链饱和醇为添加剂合成了L沸石,并系统研究了甲醇、乙醇、异丙醇、正丁醇、乙二醇和丙三醇对L沸石晶粒尺寸及晶体形貌的影响.实验结果表明:无添加剂合成的L沸石为扁圆柱形,粒径较小;而分别添加少量上述6种醇所得L沸石则均呈扁平蚌状,粒径显著增大,而且结晶度较好;在一定范围内增加乙醇的添加量,依次获得不同形貌的L沸石晶体,但结晶度逐渐降低.Zeolite L was synthesized by using silica aerogel and potassium aluminate as raw materials and short carbon chain saturated alcohols as additives. The effects of methanol, ethanol, isopropanol, butanol, glycol and glycerol on the crystal size and crystal morphology of zeolite L were investigated systematically. Particle size of zeolite L synthesized without adding additives was small and crystal morphology was flat cylinder. When adding small amount of various alcohols, the crystal morphology of the product was flat clam, the crystallinity was high and particle size of zeolite L increased obviously. Increasing ethanol amount in a certain range, the crystallinity was decreased and zeolite L with different shapes was obtained.

关 键 词：L沸石 水热合成 晶粒尺寸 晶体形貌 

分 类 号：TQ426.94[化学工程]