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Method for preparing chemical fiber pulp

A technology for chemical fiber pulp and additives, which is applied in the fields of cellulose raw material pulping, fiber raw material processing, textile and paper making, etc. and bleachability, saving resources, reducing the effect of LCC

Inactive Publication Date: 2012-11-21
YIBIN GRACE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problems in the above-mentioned existing cooking technology that cooking aids cannot be used for cooking chemical fiber pulp, and are not environmentally friendly enough, and provide a method for preparing chemical fiber pulp using environmentally friendly compound cooking aids

Method used

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  • Method for preparing chemical fiber pulp
  • Method for preparing chemical fiber pulp
  • Method for preparing chemical fiber pulp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A. Cotton opening: Add cotton linters into the cotton opener, after being shredded by large and small licker-in rollers, it is blown into the cyclone separator by air;

[0033] B. Configure environmentally friendly cooking compound additives: weigh sodium sulfite, magnesium sulfate, tetrahydroanthraquinone, sodium dodecylbenzenesulfonate, and ligninase according to the following weight percentages: sodium sulfite 3%, magnesium sulfate 10%, 50% tetrahydroanthraquinone, 30% sodium dodecylbenzenesulfonate, 7% ligninase; uniformly mix solid-phase sodium sulfite, magnesium sulfate, tetrahydroanthraquinone and sodium dodecylbenzenesulfonate to prepare into compound additives;

[0034] C. Configure environment-friendly cooking compound auxiliary liquid: add the compound auxiliary with a weight of 0.3% of the weight of cotton linters into the auxiliary dissolving tank filled with water 4 times the weight of the compound auxiliary, and then add it to step B The weighed ligninas...

Embodiment 2

[0039] A. Cotton opening: Add cotton linters into the cotton opener, after being shredded by large and small licker-in rollers, it is blown into the cyclone separator by air;

[0040] B. Configure environmentally friendly cooking compound additives: weigh sodium sulfite, magnesium sulfate, tetrahydroanthraquinone, sodium dodecylbenzenesulfonate, and ligninase according to the following weight percentages: sodium sulfite 20%, magnesium sulfate 1%, 60% tetrahydroanthraquinone, 15% sodium dodecylbenzenesulfonate, 4% ligninase; uniformly mix solid-phase sodium sulfite, magnesium sulfate, tetrahydroanthraquinone and sodium dodecylbenzenesulfonate to prepare into compound additives;

[0041] C. Configure environment-friendly cooking compound auxiliary liquid: add the compound auxiliary with a weight of 5% of the weight of cotton linters into the auxiliary dissolving tank filled with water 7 times the weight of the compound auxiliary, and then add it to step B The weighed ligninase ...

Embodiment 3

[0046] A. Cotton opening: Add cotton linters into the cotton opener, after being shredded by large and small licker-in rollers, it is blown into the cyclone separator by air;

[0047] B. Configure environmentally friendly cooking compound additives: weigh sodium sulfite, magnesium sulfate, tetrahydroanthraquinone, sodium dodecylbenzenesulfonate, and ligninase according to the following weight percentages: sodium sulfite 20%, magnesium sulfate 10%, 55% tetrahydroanthraquinone, 5% sodium dodecylbenzenesulfonate, 10% ligninase; uniformly mix solid-phase sodium sulfite, magnesium sulfate, tetrahydroanthraquinone, sodium dodecylbenzenesulfonate, and prepare into compound additives;

[0048] C. Configure environment-friendly cooking compound auxiliary liquid: add the compound auxiliary with a weight of 2.7% of the weight of cotton linters into the auxiliary dissolving tank filled with water 5 times the weight of the compound auxiliary, and then add it to step B The weighed ligninas...

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Abstract

The invention relates to a method for preparing chemical fiber pulp, belonging to the field of chemical fiber pulp manufacturing in the spinning industry. The invention aims at solving the problems that a cooking additive cannot be used for cooking chemical fiber pulp in the traditional cooking technology and the traditional cooking technology is not environment-friendly and the like, and provides a method for preparing chemical fiber pulp by using an environment-friendly compound cooking additive. The method comprises the processes of opening cotton, preparing the additive, cooking and the like; the method can be used for emulsifying and removing wax, protein and fat in the cooking process of the chemical fiber pulp and has the advantages of improving the osmosis and dispersion of medicine liquid during cooking, controlling the decomposition speed of the cellulose, improving the alpha cellulose content, selectively removing a chromophoric group, improving half-stuff whiteness and bleachability, reducing LCC (Lignin-Carbohydrate Complex) and others, improving the chemical reaction performance and effectively lowering the raw material consumption and reducing the COD (Chemical Oxygen Demand), chroma and other indexes of the spent liquid during cooking.

Description

technical field [0001] The invention relates to a method for preparing chemical fiber pulp, which belongs to the field of chemical fiber pulp manufacturing in the textile industry. Background technique [0002] In the production of pulp for chemical fiber, no matter what kind of raw material wood, bamboo or cotton is used, the cooking process is very important. The quality of cooking directly affects the technological performance of pulp in the process of chemical fiber viscose preparation and spinning. In order to achieve the requirements of reducing polymerization, purifying, improving and improving the reaction performance, the characteristics of heavy steaming and light bleaching are reflected in various existing technological processes, so it can be seen that the cooking process plays an important role in the production of chemical fiber pulp . [0003] In the existing cooking technology, the cooking aids are relatively simple, some are to accelerate the reaction, some...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21C3/22
Inventor 薛勤徐发祥刘爱兵蒲运龙谢鹏
Owner YIBIN GRACE GROUP CO LTD
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