醋酐市场分析及工艺技术

醋酐是最重要的精细化工原料之一,主要用于合成醋酸纤维素,其次用于医药、染料、香料和有机合成中的乙酰化剂。2009年中国有醋酐生产企业17家,总生产能力约为51万t/a。国内醋酐装置规模较小,工艺落后,今后应逐步淘汰落后装置,实现规模化生产,以降低生产成本,提高经济效益。发展技术先进的羰基合成工艺具有广阔的前景。

Market analysis and process technology of acetic anhydride

Acetic Anhydride is one of the foremost fine chemical materials with active chemical performance.It was mainly used in manufacturing cellulose acetate,and secondly used in medicine,dye,spice,and as acetyl reagent in organic synthesizing.There was 17 production enterprises at home in 2009,and the total production capacity was about 5.1×105 t/a.Acetic anhydride production unit capacity was relatively small and process was behindhand in China.Behindhand small unit and achieve scale production should be phased out in future,in order to reduce production cost and improve economy benefit.It has a broad foreground to develop technology-advanced synthesizing process.