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Cooking agent used for pulping in papermaking

A technology of cooking and pulping, which is applied in the field of papermaking, can solve the problems of low yield, heavy pollution, and environmental pollution, and achieve the effect of long usable life and good cooking effect

Active Publication Date: 2018-12-18
淮安市井沅科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chemical pulping can roughly retain the natural length of the fiber, remove most of the lignin, and produce high-strength, soft high-grade paper, but its shortcomings are also very obvious, that is, low yield, large pollution, and the cooking residue contains a lot of alkali substances, polluting the environment

Method used

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  • Cooking agent used for pulping in papermaking
  • Cooking agent used for pulping in papermaking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] S1 prepares materials, cuts up the reed raw materials and removes impurities;

[0019] S2 One-time cooking: One-time cooking according to the liquid ratio of 1:4, the cooking temperature is 80℃, the cooking time is 15min, and the water is washed. The cooking liquid used, according to mass percentage, is composed of the following components: sodium hydroxide 6%, sodium sulfite 0.5%, 1.6% of sodium sulfide, 0.5% of anthraquinone, 0.03% of sodium dodecyl sulfonate, the balance water;

[0020] S3 Secondary cooking: Perform secondary cooking at a liquid ratio of 1:5. The cooking temperature is 60°C, the cooking time is 15 minutes, and the cooking time is 15 minutes. Wash with water. The cooking liquid used is obtained by diluting the cooking agent with water. The amount of water is 120 times that of the cooking agent. The cooking agent is prepared as follows: the graphene aerogel powder is dispersed in water to obtain a dispersion with a mass fraction of 15%, and the mixed enzyme...

Embodiment 2

[0022] S1 prepares materials, cuts up the reed raw materials and removes impurities;

[0023] S2 One-time cooking: One-time cooking according to the liquid ratio of 1:4, the cooking temperature is 80℃, the cooking time is 15min, and the water is washed. The cooking liquid used, according to mass percentage, is composed of the following components: sodium hydroxide 6%, sodium sulfite 0.5%, 1.6% of sodium sulfide, 0.5% of anthraquinone, 0.03% of sodium dodecyl sulfonate, the balance water;

[0024] S3 Secondary cooking: Perform secondary cooking at a liquid ratio of 1:5. The cooking temperature is 60°C, the cooking time is 15 minutes, and the cooking time is 15 minutes. Wash with water. The cooking liquid used is obtained by diluting the cooking agent with water. The amount of water is 120 times that of the cooking agent. The cooking agent is prepared by the following method: the graphene aerogel powder is dispersed in water to obtain a dispersion with a mass fraction of 18%, the mix...

Embodiment 3

[0026] S1 prepares materials, cuts up the reed raw materials and removes impurities;

[0027] S2 One-time cooking: One-time cooking according to the liquid ratio of 1:4, the cooking temperature is 80℃, the cooking time is 15min, and the water is washed. The cooking liquid used, according to mass percentage, is composed of the following components: sodium hydroxide 6%, sodium sulfite 0.5%, 1.6% of sodium sulfide, 0.5% of anthraquinone, 0.03% of sodium dodecyl sulfonate, the balance water;

[0028] S3 Secondary cooking: Perform secondary cooking at a liquid ratio of 1:5. The cooking temperature is 60°C, the cooking time is 15 minutes, and the cooking time is 15 minutes. Wash with water. The cooking liquid used is obtained by diluting the cooking agent with water. The amount of water is 120 times that of the cooking agent. The cooking agent is prepared by the following method: the graphene aerogel powder is dispersed in water to obtain a dispersion with a mass fraction of 12%, the mix...

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Abstract

The invention relates to a cooking agent used for pulping in papermaking and belongs to the field of papermaking. The cooking agent is composed of graphene aerogel powder and an enzyme supported thereby; wherein the enzyme consists of an enzyme liquid I and an enzyme liquid II according to mass ratio of 1-3:1. The enzyme liquid I is prepared by performing fermentation with Irpex lacteus Fr. and separating the bacteria; the enzyme liquid II is prepared by performing fermentation with Coriolopsis gallica and separating the bacteria. The cooking agent is mainly used in a pulping process with a grass type raw material, wherein by combining the bio-enzymes and the supporter, the cooking agent can prevent loss of the enzyme during use. The cooking agent can be repeatedly utilized and is long inservice life, and has great cooking effect.

Description

Technical field [0001] The invention relates to a cooking agent for papermaking and pulping, belonging to the field of papermaking. Background technique [0002] Paper production is divided into two basic processes: pulping and papermaking. The methods used in the pulping process include mechanical methods, chemical methods or a combination of the two methods to dissociate plant fiber raw materials into natural-colored pulp or bleached pulp. Among them, chemical pulping is a more commonly used method. The principle is to use chemical liquid to cook the material. At high temperature, the chemical agent reacts with the lignin in the material to form water-soluble matter, which separates and disperses the fibers into a slurry. The pulping method is divided into alkaline pulping and acid pulping. Chemical pulping can roughly retain the natural length of the fiber, remove most of the lignin, and produce high-strength and soft high-grade paper, but its shortcomings are also obvious, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C3/06D21C5/00
CPCD21C3/06D21C5/005
Inventor 不公告发明人
Owner 淮安市井沅科技有限公司
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