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Preparation method and application of tobacco cationic hemicellulose

A hemicellulose and cationic technology, applied in the fields of tobacco, application, and tobacco treatment, can solve the problems of general effect, small size, and small force, and achieve the effects of reducing load, improving filler retention rate, and improving combustion performance

Active Publication Date: 2018-05-29
HUBEI CHINA TOBACCO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The cationic additives used above have a very small aggregate volume in the pulp, and the force is very small, and are affected by many factors. Although they can be used as retention aids for reconstituted tobacco pulp, their effects are general

Method used

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  • Preparation method and application of tobacco cationic hemicellulose
  • Preparation method and application of tobacco cationic hemicellulose
  • Preparation method and application of tobacco cationic hemicellulose

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, a kind of preparation method of tobacco cationic hemicellulose is characterized in that the specific preparation steps are as follows:

[0025] (1) Add 10 times the amount of water to the discarded tobacco stems, tobacco leaf fragments, tobacco powder, etc., extract at 65°C for 4 hours, collect the solid phase after filtration, and take 10 parts by weight of the solid phase and 100 parts by weight of the mass fraction 6 % sodium hydroxide solution is mixed and put into a reactor with a stirring device and a heating system, and the temperature is raised to 80° C., and at the same time, under the condition of a rotating speed of 800 rpm, after stirring and reacting for 3 hours, oxalic acid is added to neutralize to pH 6.5, Filtrate, collect the filtrate and add 3 times the volume of 95% ethanol to precipitate the soluble hemicellulose, collect the precipitate after filtration, dry it, and obtain tobacco hemicellulose;

[0026] (2) Put 10 parts by weight of t...

Embodiment 2

[0029] Embodiment 2, a kind of preparation method of tobacco cationic hemicellulose is characterized in that the specific preparation steps are as follows:

[0030](1) add discarded tobacco stems, tobacco leaf fragments, and tobacco powder to 13 times the weight of water and extract at 60°C for 4 hours, collect the solid phase after filtration, and take 10 parts by weight of the solid phase and 90 parts by weight of the Mix potassium hydroxide solution with a mass fraction of 8% and put it into a reactor with a stirring device and a heating system, raise the temperature to 65°C, and at the same time, stir and react for 2 hours at a speed of 600rpm, then add oxalic acid to neutralize to pH5 .5, filter, add the 95% ethanol of its 3 times of volume in the filtrate, add the ethanol of its concentration 95% of 3 times of volume in the filtrate, make the precipitation of soluble hemicellulose, and collect the precipitate after filtering, Dried to obtain tobacco hemicellulose;

[00...

Embodiment 3

[0033] Embodiment 3: a kind of preparation method of tobacco cationic hemicellulose is characterized in that the specific preparation steps are as follows:

[0034] (1) add discarded tobacco stems, tobacco leaf fragments, and tobacco powder to 8 times the weight of water to extract at 75°C for 3 hours, collect the solid phase after filtration, and take 10 parts by weight of the solid phase and 120 parts by weight of the mass Mix 12% potassium hydroxide solution into a reactor with a stirring device and a heating system, raise the temperature to 90°C, and at the same time, stir and react for 3.5 hours at a speed of 1000rpm, then add acetic acid to neutralize to pH7 .0, filter, and add 3 times its volume of ethanol with a concentration of 95% to the filtrate to precipitate the soluble hemicellulose, and collect the precipitate after filtration, dry it to obtain tobacco hemicellulose;

[0035] (2) Put 10 parts by weight of the tobacco hemicellulose prepared in step (1) into a rea...

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Abstract

The invention provides a preparation method and application of tobacco cationic hemicellulose. The preparation method includes the specific steps that solid phase materials are extracted from waste tobacco raw materials and then mixed with an alkali solution for heating and stirring to collect the filtrate, ethanol is added for filtering to collect precipitate, the precipitate is dried to obtain tobacco hemicellulose, sodium hydroxide is added for stirring and carrying out a reaction, a cationic surfactant is slowly added for carrying out a reaction for 1-3 hours, a weak acid is added for neutralizing, precipitation is carried out by ethanol, and then the precipitate is collected after filtering, washed with ethanol and dried to obtain the tobacco cationic hemicellulose. The tobacco cationic hemicellulose prepared by the method can be used as a retention aid for slurry of reconstituted tobaccos, can effectively improve the filler retention rate, the water filtering performance of the slurry and the ability for absorbing anion interference substances and reduce the load of plain boiled water and waste water, is easily biodegradable, improves the combustion performance of the reconstituted tobaccos, reduces the released amount of tar and CO and improves the sensory quality of cigarettes to a certain extent.

Description

technical field [0001] The invention belongs to the field of reconstituted tobacco leaf processing, and in particular relates to tobacco cationic hemicellulose and its application in papermaking reconstituted tobacco leaves. Background technique [0002] Cationic surfactants are widely used, have excellent performance, and have special emulsification and adsorption properties. Cationic surfactants are easy to adsorb on the general solid surface, so they can often endow the solid surface with certain characteristics, so they have some special uses: such as the use of cationic surfactants and cationic dyes on the competitive adsorption of fibers, it can be used as a dyeing and finishing agent. Industrial retarder. In the paper industry, polymer cationic surfactants can be used as paper strengthening agents, rosin emulsifiers and emulsifiers for neutral sizing agents, etc. [0003] The vast majority of paper retention aids are cationic polymers. Currently, modified starch, gu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B15/12A24B15/26
CPCA24B15/12A24B15/26
Inventor 潘曦宋旭艳魏敏李冉郭国宁
Owner HUBEI CHINA TOBACCO IND
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