2011•Chemical Industry and EngineeringRequires access
Separation and Preparation of Glutaric Acid from Mixed Dicarboxylic Acid
Youguang Ma
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Abstract
The mixed dicarboxylic acid is a kind of abundant by-product of production process of adipic acid.As a main component in mixed dicarboxylic acid,glutaric acid is a very valuable raw material for fine chemical and has been widely applied to industrial production.This paper aims at the separation and preparation of glutaric acid from mixed dicarboxylic acid.A novel technology involving solution-crystallization,reaction with magnesia-separation and vacuum distillation to obtain highly pure glutaric acid was developed.The proper processing condition was determined experimentally.By the present technique,the glutaric acid with purity more than 99.5% was obtained.