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요약정보
酸性沸石催化葡萄糖制备5-羟甲基糠醛研究 / Acidic Zeolite Catalysts for Preparation of 5-hydroxymethylfurfural from Glucose
Resource Type
Academic Journal
Authors
李秉正
;
黎演明
;
吴学众
;
黄日波
;
LI Bing-zheng
;
LI Yan-ming
;
WU Xue-zhong
;
HUANG Ri-bo
Source
广西科学 / Guangxi Sciences
. 20(2):158-164
Subject
5-羟甲基糠醛
葡萄糖
酸性沸石
磷钨酸
Y型沸石
Language
Chinese
ISSN
1005-9164
Online Access
Find it @ DONGA
초록
以酸性沸石为催化剂,催化葡萄糖脱水制备5-羟甲基糠醛(5-HMF).沸石催化剂采用固载磷钨酸(PW)和脱铝两种方法制备,固载PW方法用3种类型沸石:HY、MCM-41和HMOR,脱铝方法用HY型沸石,共制得产物PW/MCM-41、PW/HMOR、PW/HY、HY-D0.2和HY-D1.0,考察沸石结构、反应温度、葡萄糖与水质量比、催化剂与葡萄糖质量比对制备5-HMF的影响.结果表明,沸石固载PW后5-HMF的产率均有所提高,其中,以Y型沸石(HY)固载PW后(PW/HY)作为催化剂时5-HMF产率最高,为27.9%;HY特殊的结构对提高5-HMF的产率具有重要的作用.另外,提高反应温度有利于加快5-HMF的生成;葡萄糖与水质量比为3.0∶100时5-HMF产率最高,反应2.5h时达到30.4%,说明适当的葡萄糖与水质量比有利于5-HMF的制备.
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