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A kind of mixed filtration method of beizi and beihua fermented product

A technology of glycolysis and fermentation, applied in the separation/purification of carboxylic acid compounds, organic chemistry, etc., to achieve the effect of low pollution, high concentration and simple operation

Inactive Publication Date: 2017-04-05
湘西高源生化科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem solved by the present invention is: change single filter to mixed filter, integrate resources, learn from each other's strengths, and share advantages

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Use Gallnut Ferment and Beihua Ferment, follow the steps below to prepare:

[0024] (A) water preparation: add 200% by weight of the zymolyzate to be filtered in the interlayer extraction pot (inner tank is made of 304 material), and preheat to 60 degrees Celsius of water temperature;

[0025] (B) Mixing: the gallnut fermented product and Beihua fermented product that have been fermented separately for 18 days, according to the ratio of 1:0.33 (that is, the dry material weight of Beihua is about one-third of the dry material weight of Beizi) Put it into the interlayer leaching pot with pre-heated water, stir and heat to boiling (99-100 degrees Celsius), and control the air pressure at 0.20-0.3 MPa;

[0026] (C) Filtration: After boiling for 20 minutes, discharge the material and carry out vacuum filtration. After draining, put the filtrate into the crystallization tank to allow it to cool and crystallize naturally, and then add water to the filter residue to heat and fi...

Embodiment 2

[0035] Follow the steps below for hybrid filtration:

[0036] (A) water preparation: add 60% by weight of the zymolyzate to be filtered in the interlayer extraction pot (inner tank is made of 304 material), and preheat to 80 degrees Celsius of water temperature;

[0037] (B) Mixing: the gallnut solid fermented product and Beihua solid fermented product (prepared according to the above method) that have been fermented separately for 16 days are mixed at a ratio of 1:0.5 (that is, the dry material weight of Beihua is about the dry material weight of Beizi. 1 / 2 of the ratio) into the jacketed leaching pot with preheated water for stirring and heating until boiling (99-100 degrees Celsius), and the air pressure is controlled at 0.3-0.4 MPa;

[0038] (C) Filtration: After boiling for 15 minutes, discharge the material and carry out vacuum filtration. After draining, the filtrate is put into the crystallization tank, allowed to cool and crystallize naturally, and the filter residue ...

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Abstract

The invention relates to a galla chinensis zymolite and galla chinensis flower zymolite mixing filtration method, and specially discloses a method for preparing gallic acid from a galla chinensis zymolite and a galla chinensis flower zymolite. The method comprises: (A) water preparing: adding water having the amount of 50-250% of the weight of zymolites to be filtered to leaching equipment, and pre-heating to achieve a water temperature of 40-90 DEG C; (B) material mixing: placing a galla chinensis zymolite and a galla chinensis flower zymolite into the leaching equipment filled with the pre-heated water according to a ratio of the galla chinensis zymolite to the galla chinensis flower zymolite of 1:0.2-0.5, and carrying out stirring heating to achieve a boiling state; (C) filtering: after the boiling, discharging the material, carrying out vacuum suction filtration, placing into a crystallization pool after the filtrate is drained, and carrying out natural cooling crystallization; (D) centrifugal drying: carrying out solid-liquid separation after carrying out filtrate crystallization for 35-48 h, wherein the obtained solid is a gallic acid crude product; and (E) decolorizing the crude product, and drying and crushing to obtain the gallic acid finished product.

Description

technical field [0001] The invention relates to a method for preparing gallic acid from gallnut zymolyzate and beihua zymolyzate, specifically a mixed filtration method for extracting gallic acid from gallnut and beihua zymolyzate. [0002] technical background [0003] Bioengineering is the leading direction of the chemical industry in the 21st century! After our country has gone through a high-speed development at the cost of a large amount of resource consumption and high environmental pollution caused by a large number of "three wastes", it is increasingly calling for a green circular economy with sustainable development and high added value. [0004] Gallic acid, also known as gallic acid or double acid, its chemical name: 3,4,5-trihydroxybenzoic acid, English name: GALLIC ACID, the appearance is white or off-white crystalline powder. It is a precious fine chemical product, widely used in organic synthesis, chemical industry, medicine, food, printing and dyeing, nationa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C65/03C07C51/42C07C51/47
Inventor 高从翠
Owner 湘西高源生化科技有限公司
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