Method for extracting liquorice flavoring extract for cigarette additive from glycyrrhizic-acid produced waste liquid

A technology of glycyrrhizic acid and additives, which is applied in the field of extracting licorice flavors for cigarette additives, can solve the problems of high macromolecular content, strong irritation of cigarettes, and many impurities, and achieve the effects of high purity, convenient operation, and simple process

Inactive Publication Date: 2010-12-22
HUBEI CHINA TOBACCO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, cigarettes are a special product that is directly inhaled into the human body. The additives added to it must not have a negative impact on the taste of cigarettes without affecting the taste of cigarettes. The products obtained by conventional chemical separation methods are due to Contains a lot of impurities, high content of protein and other macromolecules, resulting in strong irritation of cigarettes and serious oral residues, making it difficult to be used as cigarette additives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Take 100kg of acid precipitation waste liquid, the measured pH value is 3.2, add alkali to neutralize until the pH value is 7.5.

[0033] 2. Treat the neutralized material with an inorganic membrane device. The pore size of the membrane element is 30nm, the working condition is a pressure of 0.3MPa, the temperature is 55°C, and the flow rate is 70L / h. The obtained filtrate is 86.5kg.

[0034] 3. The conductivity of the primary membrane filtrate was measured to be 13200 μs / cm, and the electrodialysis device was used for desalination. down to 4000μs / cm.

[0035] 4. Refining the desalted material through a nanofiltration membrane device, the pore size of the membrane element is 1nm, the working conditions are pressure 1.8MPa, flow rate 35L / h, temperature 35°C, the obtained concentrate is 19.7kg, and the solid content is measured as 10.3%.

[0036] 5. The concentrated solution was dried in a spray drying tower at a temperature of 170° C. at the air inlet and 85° C. at ...

Embodiment 2

[0038] 1. Take 100kg of acid precipitation waste liquid, the measured pH value is 3.1, and add alkali to neutralize until the pH value is 7.5.

[0039] 2. Treat the neutralized material with an inorganic membrane device. The pore size of the membrane element is 100nm, the working condition is a pressure of 0.2MPa, the temperature is 45°C, and the flow rate is 90L / h, and the filtrate is 88.3kg.

[0040] 3. The conductivity of the first-stage membrane filtrate was measured to be 13350 μs / cm, and the electrodialysis device was used for desalination. The rate drops to 3800μs / cm.

[0041] 4. Refining the desalted material through a nanofiltration membrane device, the pore size of the membrane element is 2nm, the working conditions are pressure 1.9MPa, flow rate 45L / h, temperature 45°C, the obtained concentrate is 19.2kg, and the solid content is measured as 9.7%.

[0042] 5. The concentrated solution was dried in a spray drying tower at a temperature of 160° C. at the air inlet a...

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Abstract

The invention discloses a method for extracting a liquorice flavoring extract for a cigarette additive from glycyrrhizic-acid produced waste liquid, belonging to a production method of the cigarette additive. The method sequentially comprises the following steps of: (1) neutralization: adjusting the pH value of the glycyrrhizic-acid produced waste liquid to 7-8; (2) primary membrane impurity removal: processing the waste liquid by adopting inorganic ceramic membrane separating equipment with the bore diameter of 30-100 nm and then collecting filter liquid; (3) electro-osmosis desalination: desalinating by utilizing an electro-osmosis device to reduce the conductivity of the filter liquid to 2500-3000 mus / cm; (4) secondary membrane refined concentration: carrying out refined concentration by using a nanofiltration membrane separating device, wherein a membrane element is a nanofiltration membrane with the separating bore diameter of 1-2 nm; and (5) spray drying: carrying out spray drying on the refined concentrate to obtain liquorice flavoring powder for the cigarette additive. The method is scientific and reasonable, is convenient to operate, easy to implement and can obtain the extract with high purity, and thus, the method is suitable for serving as the cigarette additive.

Description

technical field [0001] The invention belongs to a production method of cigarette additives, in particular to a production method of extracting licorice flavor for cigarette additives from glycyrrhizic acid production waste liquid by using membrane separation technology Background technique [0002] Scientific research has found that licorice contains glycyrrhizic acid, licorice flavonoids, licorice polysaccharides and other active substances that have the function of curing diseases and strengthening the body. Using the technology of the prior art, they can be extracted from licorice and prepared as cigarette additives. In the prior art, it has also been proved that the licorice extract can significantly improve the quality of cigarettes, remove miscellaneous gases, and improve alcohol taste, and has been widely used in the cigarette industry. [0003] Due to the wide use of licorice in food and medicine, licorice has been excavated by predators for a long time, the price of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/00A24B15/30
Inventor 王娟万端极蔡冰徐国念熊宏春廉志清
Owner HUBEI CHINA TOBACCO IND
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