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Method for refining gourmet powder mother liquor

A refining method and mother liquor technology, which are applied in chemical instruments and methods, cyanide reaction preparation, organic compound preparation and other directions, can solve the problems of low yield, complex processing process and high processing cost, and achieve short process flow, The effect of low energy consumption and simple operation

Inactive Publication Date: 2013-10-30
ZHEJIANG XINHE ENVIRONMENT SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0020] The purpose of the present invention is to solve the technical problems in the prior art that the refining process of monosodium glutamate mother liquor is relatively complicated, the processing cost is high, and the yield is not high

Method used

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  • Method for refining gourmet powder mother liquor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Attached figure 1 In the process flow shown, 500mL monosodium glutamate mother liquor (referred to as mother liquor) is passed into the ozone produced by the ozone generator for oxidation, then calcium chloride is added to precipitate the sulfate ion in the mother liquor, and after the calcium sulfate precipitate is filtered through a plate and frame filter , add the flocculant basic aluminum chloride to remove impurities in the mother liquor, and then filter through a plate and frame filter. After a large amount of impurities are removed, the mother liquor is passed into an activated carbon adsorption column for decolorization, and a refined mother liquor for producing high-purity monosodium glutamate is obtained.

[0060] Monosodium glutamate mother liquor parameter is as follows in the present embodiment:

[0061] Feed liquid Crystallization mother liquid

[0062] Monosodium glutamate content 34%

[0063] Baume 22°Be

[0064] Transmittance 40%

[0065] The proces...

Embodiment 2

[0082] Attached figure 1 In the process flow shown, 500mL monosodium glutamate mother liquor (referred to as mother liquor) is passed into the ozone produced by the ozone generator for oxidation, then calcium chloride is added to precipitate the sulfate ion in the mother liquor, and after the calcium sulfate precipitate is filtered through a plate and frame filter , add flocculant basic aluminum chloride to remove impurities in the mother liquor, and then filter through a plate and frame filter. After a large amount of impurities are removed, the mother liquor is passed into an adsorption column filled with activated carbon for decolorization, and then an adsorption column filled with decolorization resin is connected in series, thereby A refined mother liquor for producing high-purity monosodium glutamate is obtained.

[0083] Monosodium glutamate mother liquor parameter is as follows in the present embodiment:

[0084] Feed liquid Crystallization mother liquid

[0085] Mon...

Embodiment 3

[0105] Attached figure 1 In the process flow shown, 500mL monosodium glutamate mother liquor (referred to as mother liquor) is passed into the ozone produced by the ozone generator for oxidation, then calcium chloride is added to precipitate the sulfate ion in the mother liquor, and after the calcium sulfate precipitate is filtered through a plate and frame filter , add the flocculant basic aluminum chloride to remove impurities in the mother liquor, and then filter through a plate and frame filter. After a large amount of impurities are removed, the mother liquor is passed into an adsorption column filled with activated carbon for decolorization, and then an adsorption column filled with ion exchange resin is connected in series. Thereby, the refined mother liquor for producing high-purity monosodium glutamate is obtained.

[0106] Monosodium glutamate mother liquor parameter is as follows in the present embodiment:

[0107] Feed liquid Crystallization mother liquid

[0108...

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Abstract

The invention provides a method for refining gourmet powder mother liquor, comprising the following steps: oxidizing and decolorizing the gourmet powder mother liquor; adding sulfate radical remover to the oxidized and decolorized gourmet powder mother liquor; filtering the gourmet powder mother liquor; adding flocculant to remove the impurities in the gourmet powder mother liquor; and introducing the gourmet powder mother liquor to an adsorption column to finally obtain the refined gourmet powder mother liquor. After the gourmet powder mother liquor is refined by the process in the invention, the light transmittance of the gourmet powder mother liquor is up to over 90 percent, the content of the sulfate radical in the gourmet powder mother liquor reaches the national standard of Monosodium Glutamate GB / T 8967-2007, the loss of the monosodium in the gourmet powder is less, and the yield of the monosodium is up to over 95 percent.

Description

technical field [0001] The invention relates to a method for producing monosodium glutamate, in particular to a method for refining monosodium glutamate mother liquor. Background technique [0002] The monosodium glutamate industry is one of the main industries of my country's fermentation industry. The monosodium glutamate produced in my country is gradually increasing with the development of society. In 1999, it reached 590,300 tons. The production of monosodium glutamate usually uses rice, starch, and molasses as the main raw materials. After saccharification and fermentation, glutamic acid is separated and extracted, and then monosodium glutamate products are obtained through refining. [0003] For the production of monosodium glutamate, in order to ensure the quality of monosodium glutamate, we must strictly control the process. From the perspective of the refining workshop, there may be two reasons that have a greater impact on the quality of monosodium glutamate, one...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C227/40A23L27/22
Inventor 凌敏郑晨
Owner ZHEJIANG XINHE ENVIRONMENT SCI & TECH