A method for extracting succinic acid using succinic acid fermentation broth

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, waste of auxiliary materials, high recycling costs, etc., and achieve the effect of reducing the difficulty of the process

Active Publication Date: 2017-07-28
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

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A method for extracting succinic acid using a succinic acid fermented liquid, the extraction method is as follows:

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

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

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

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PUM

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Abstract

The invention relates to a method for extracting succinic acid using a succinic acid fermentation liquid, the extraction method being (1) preparation of a succinic acid fermentation liquid (2) converting succinate into diammonium succinate by using ammonia gas Re-acidification treatment of succinic acid fermentation broth (3) extraction of succinic acid (4) introduction of magnesium salt ammonia production process and bipolar membrane electrodialysis recovery acid-base process, recycling evaporated water, ammonia gas, magnesium carbonate suspension, Hydrochloric acid; the intermediate product of diammonium succinate in the process realizes clean production in the process, and at the same time avoids the use of resin exchange in the traditional process to convert diammonium succinate into succinic acid, resulting in a large amount of sewage discharge problems, and reduces the difficulty of the process, it is a closed clean production process.

Description

technical field [0001] The invention relates to a method for extracting succinic acid through a diammonium succinate process using a succinic acid fermentation broth. The invention belongs to the field of biochemical technology. Background technique [0002] Succinic acid (succinic acid), also known as succinic acid, widely exists in organisms, is an important dibasic organic carboxylic acid, and is also an important metabolite of the microbial tricarboxylic acid cycle glycolysis pathway. At present, succinic acid can be prepared by microbial fermentation. [0003] In the process of preparing succinic acid by microbial fermentation, many different post-extraction methods have been produced according to the 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 extra...

Claims

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Application Information

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