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Method for extracting succinic acid by employing succinic acid fermentation liquor

An extraction method, succinic acid technology, applied in the direction of microorganism-based methods, fermentation, biochemical equipment and methods, etc., can solve the problems of large sewage discharge, pollution, waste of auxiliary materials, etc., and achieve the effect of reducing the difficulty of the process

Active Publication Date: 2015-09-02
SHANDONG FEIYANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses the traditional process of resin exchange, resulting in a large amount of sewage discharge, and when recovering ammonium salts that can be used as fertilizers, all the washed water needs to be evaporated to dryness, resulting in high recovery costs.
The entire process is not closed, and the salts and hydrochloric acid used in the process cannot be recovered, resulting in waste of auxiliary materials and environmental pollution.
This method is not suitable for industrial production requirements

Method used

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Examples

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Embodiment 1

[0039] A method for using succinic acid fermentation broth to extract succinic acid, the extraction method thereof is as follows:

[0040] (1) Preparation of succinic acid fermentation broth

[0041] ①Weigh 5kg of peptone, 20kg of corn steep liquor, 20kg of glucose, 1.5kg of potassium dihydrogen phosphate, 1.5kg of disodium hydrogen phosphate, 5kg of yeast extract, 947kg of deionized water and configure it into a seed culture medium with a total mass of 1000kg, in the fermentation kettle Use the seed medium to cultivate Actinobacter succinates, in the described fermentation kettle, the per-minute volume intake of carbon dioxide is 10L, and in the process, the magnesium carbonate suspension with magnesium carbonate mass concentration of 20% is added to maintain the pH of the system. The value is stable at 6.0-7.0;

[0042] ②Weigh 50kg of peptone, 100kg of corn steep liquor, 1000kg of glucose, 25kg of potassium dihydrogen phosphate, 25kg of disodium hydrogen phosphate, 50kg of ...

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PUM

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Abstract

The invention relates to a method for extracting a succinic acid by employing a succinic acid fermentation liquor. The method comprises the following steps: (1) preparing a succinic acid fermentation liquor; (2) transforming succinate into succinic acid diammonium and acidizing the succinic acid fermentation liquor; (3) extracting the succinic acid; and (4) introducing a magnesium-salt ammonia production process and an acid and alkali recovery technology based on bipolar membrane electrodialysis, and recycling evaporable water, an ammonia gas, a magnesium carbonate suspension liquid and a hydrochloric acid. Clean production in the process is realized by intermediate products of the succinic acid diammonium; meanwhile, the problem that the succinic acid diammonium is transformed into the succinic acid by virtue of resin exchange in a traditional technological process, so that the discharge amount of wastewater is high is avoided; the process difficulty is lowered; and the method is a closed clean production process.

Description

technical field [0001] The invention relates to a method for extracting succinic acid through diammonium succinate process by using succinic acid fermentation broth. The invention belongs to the technical field of biochemical industry. Background technique [0002] Succinic acid, also known as succinic acid, is widely present in organisms and is an important dibasic organic carboxylic acid and an important metabolite of the glycolysis pathway of the microbial tricarboxylic acid cycle. Currently, succinic acid can be produced by microbial fermentation. [0003] In the process of preparing succinic acid by microbial fermentation, many different post-extraction process methods are produced according to different types of microorganisms and different fermentation processes. [0004] The process of separation and purification is to remove insoluble impurities, convert succinate into free succinic acid, and increase its concentration to the required process. A separation and ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C55/10C07C51/42C12P7/46C12R1/01
Inventor 吕涛
Owner SHANDONG FEIYANG CHEM
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