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Process of separating and purifying 1,3-propylene glycol of fermented liquid in a four-area simulating mobile bed

A technology of simulating moving bed, separation and purification, applied in the field of chemical raw material product processing, can solve the problems of difficult scale, cumbersome operation, and many impurities, and achieve the effects of large preparation volume, high preparation efficiency and good preparation purity

Active Publication Date: 2007-11-07
JIANGSU HANBON SCI & TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a method for separating and purifying 1,3-propanediol in a four-zone simulated moving bed, which overcomes the tedious operation, low content of finished products, and many impurities in the current traditional 1,3-PD separation process. Defects that are not easy to scale

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0012] Example 1: select 1,3-propanediol fermentation broth, and realize the purification and preparation of 1,3-propanediol on the simulated moving bed of Jiangsu Hanbang Technology Co., Ltd., the specific steps are:

[0013] a. Treat the 1,3-propanediol fermentation broth with ordinary filtration and ultrafiltration to remove cells, solids and proteins, and reduce the viscosity of the feed liquid;

[0014] B, the fermented liquid after processing is decolorized by active carbon;

[0015] c. Use a simulated moving bed system equipped with a cation exchange resin to separate the 1,3-propanediol sample solution with a concentration of 5g / l, and elute with deionized water with a pH of 2-14 to control the migration speed of samples in each functional area , 1,3-propanediol and some impurities are collected from the corresponding outlet, so as to obtain 1,3-propanediol with high purity.

[0016] The simulated moving bed system in the described method is made up of elution pump, s...

example 2

[0019] Example 2: Select 1,3-propanediol fermentation liquid to realize the purification of 1,3-propanediol on the simulated moving bed of Jiangsu Hanbang Technology Co., Ltd. The specific steps are:

[0020] a. Treat the 1,3-propanediol fermentation broth with ordinary filtration and ultrafiltration to remove cells, solids and proteins, and reduce the viscosity of the feed liquid;

[0021] B, the fermented liquid after processing is decolorized by active carbon;

[0022] c. Use a simulated moving bed system equipped with a cation exchange resin to separate the 1,3-propanediol sample solution with a concentration of 22g / l, elute with deionized water with a pH of 2-14, and control the migration speed of samples in each functional area , 1,3-propanediol and some impurities are collected from the corresponding outlet, so as to obtain 1,3-propanediol with high purity.

[0023] The simulated moving bed system in the described method is made up of elution pump, sampling pump, extra...

example 3

[0026] Example 3: Select 1,3-propanediol fermentation liquid to realize the purification of 1,3-propanediol on the simulated moving bed of Jiangsu Hanbang Technology Co., Ltd. The specific steps are:

[0027] a. Treat the 1,3-propanediol fermentation broth with ordinary filtration and ultrafiltration to remove cells, solids and proteins, and reduce the viscosity of the feed liquid;

[0028] B, the fermented liquid after processing is decolorized by active carbon;

[0029] c. Use a simulated moving bed system equipped with a cation exchange resin to separate the 1,3-propanediol sample solution with a concentration of 5-40g / l, elute with deionized water with a pH of 2-14, and control the concentration of samples in each functional area Migration speed, 1,3-propanediol and some impurities are collected from the corresponding outlet, so as to obtain 1,3-propanediol with high purity.

[0030] The simulated moving bed system in the described method is made up of elution pump, sampl...

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Abstract

The process of separating and purifying 1, 3-propylene glycol of fermented liquid in a four-area simulating mobile bed includes the following steps: 1. filtering and ultrafiltering the fermented liquid of 1, 3-propylene glycol to eliminate cell, thallus, solid matter and protein and lower the viscosity of the material liquid; 2. decolorizing the filtered fermented liquid; and 3. separating 1, 3-propylene glycol liquid of 5-40 g / l concentration in a simulating mobile bed system with cationic exchange resin, eluting with pH 2-14 deionized water, and collecting 1, 3-propylene glycol in high purity and impurity from different ports. The present invention separates and purifies target product by means of the physical, chemical and biological differences between the target product and the impurity, and has high preparing efficiency and high product purity.

Description

technical field [0001] The invention belongs to the field of chemical raw material product processing, and relates to a method for separating and purifying 1,3-propanediol in a fermentation liquid with a four-zone simulated moving bed. Background technique [0002] 1,3-Propanediol (1,3-PD) is a colorless, transparent, odorless liquid, miscible with water, alcohol, ether, etc., insoluble in benzene, chloroform, is an important chemical raw material, is the production of polyethylene terephthalic acid An important monomer of propylene glycol ester (PTT). 1,3-propanediol is an important organic chemical raw material. It can replace ethylene glycol and butanediol, and can be used as a monomer for synthesizing polyester and polyurethane, as well as a solvent, antifreeze or protective agent, etc. It can also be used in the synthesis of medicine and as an intermediate in organic synthesis. It can also be used as a raw material for the production of polyester PTT. The current pro...

Claims

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Application Information

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IPC IPC(8): C07C31/20C07C29/74C12P7/18
Inventor 张大兵王艳王亚辉孟强
Owner JIANGSU HANBON SCI & TECH CO
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