文献类型：专利

英文题名：Acetic anhydride preparation involves reacting mixture composed of dimethyl ether, hydrogen and carbon monoxide in presence of catalyst

作者：CHEN D;LI C;FANG D;LIU D;HU L;GAO T

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN101704735-A

申请日：2009-11-11

公开日：2010-05-12

语种：英文

收录：DERWENT

摘要：NOVELTY - Acetic anhydride preparation involves reacting mixture composed of dimethyl ether, hydrogen and carbon monoxide at 100-200 degrees C and 3-20 megapascals pressure in presence of a catalyst. The catalyst is composed of a main catalyst, a co-catalyst, methyl iodide and an organic solvent. The main catalyst is a simple substance including rhodium, a halide of rhodium, an oxide of rhodium or an oxy salt of rhodium. The co-catalyst is a simple substance including lithium, sodium, potassium, chromium, their halide and oxy salt or their mixture. USE - Method for preparing acetic anhydride (claimed). ADVANTAGE - The acetic anhydride preparation method enables to produce the acetic anhydride in a simple and cost-effective manner.