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JP2006219492A Production method of carboxylic ester by reactive distillation 有权
标题翻译：通过反应蒸馏生产羧酸酯的方法
公开(公告)号：JP2006219492A
公开(公告)日：2006-08-24
申请号：JP2006031787
申请日：2006-02-09
申请人： Sulzer Chemtech Ag , スルザーケムテックアクチェンゲゼルシャフト
发明人： ZUBER LAURENT , BAILER OLIVER , SANDER STEFAN , MEIERHOFER HEINZ
IPC分类号： C07C67/08 , C07B61/00 , C07C67/54 , C07C69/14
CPC分类号： B01J19/32 , B01D3/009 , B01J2219/00006 , B01J2219/32206 , B01J2219/32213 , B01J2219/32227 , B01J2219/32466 , B01J2219/32475 , B01J2219/32491 , C07C67/08 , Y02P20/127 , C07C69/14
摘要： PROBLEM TO BE SOLVED: To further improve a production method of a carboxylic ester by solving a problem relating to a carboxylic acid (especially acetic acid) contained in the carboxylic ester (especially butyl acetate) produced by a known means of reactive distillation, without neutralizing the carboxylic acid with a base. SOLUTION: A carboxylic ester has a boiling point higher than those of educts of a carboxylic acid and an alcohol. In the esterification, a solid catalyst is used. The esterification and the separation by distillation are performed in three zones; a reaction zone, an upper separation zone, and a lower separation zone. A head portion product and a thump product are produced. A water phase is separated from an organic phase from the head portion product. Necessary heat is supplied at a temperature set on the thump product. The carboxylic ester is obtained from the thump product. The removal of the carboxylic acid and the alcohol is performed by distillation. In this arrangement, heat is supplied to a thump product mainly comprising the carboxylic ester and containing small amounts of other substances, at a temperature at which a pressure higher than the ambient pressure is set on the thump product. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：通过解决与通过已知的反应蒸馏方法生产的羧酸酯（特别是乙酸丁酯）中所含的羧酸（特别是乙酸）有关的问题，进一步改进羧酸酯的制备方法，而不用碱中和羧酸。解决方案：羧酸酯的沸点高于羧酸和醇的沸点。在酯化中，使用固体催化剂。通过蒸馏进行酯化和分离在三个区域进行; 反应区，上分离区和下分离区。生产头部产品和捶击产品。将水相从头部产物与有机相分离。在设置在捶击产品上的温度下供应所需的热量。羧酸酯由ump产物获得。通过蒸馏进行羧酸和醇的除去。在这种布置中，在主要包含羧酸酯并且含有少量其它物质的捶击产品，在高于环境压力的压力设定在捶击产品上的温度下，供给热量。版权所有（C）2006，JPO＆NCIPI

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