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Formula for paper making assistant

A papermaking aid and formulation technology, applied in the field of papermaking aid formulation, can solve the problems of slow dissolving pectin, high labor intensity, environmental pollution, etc., and achieve the effects of shortening cooking time, reducing labor intensity, and reducing environmental pollution

Inactive Publication Date: 2004-03-10
赵炳晨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing papermaking additives generally include anthraquinone and alkali sulfide, all of which remove lignin, pectin, pigment, ash, etc. through high-temperature cooking to obtain effective fibers. The main problem of these additives in papermaking applications is that the cooking time is long , more fuel consumption, serious environmental pollution
The penetration of anthraquinone and alkali sulfide is weak, the speed of dissolving pectin is slow, and the resulting fiber is not easy to rinse, so the labor intensity is high and the production efficiency is low
Anthraquinone is a carcinogen, and alkali sulfide is also harmful to the human body, thus seriously polluting the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Prepare 1000 kg of additives, according to the optimal weight percentage of sodium bisulfate 6.8%, sodium alkyl sulfonate 7.2%, polyoxyethylene alkyl ether 13.6%, penetrant mp 0.2%, water 72.2%, and alkyl sulfonate 72 kilograms of sodium, 136 kilograms of polyoxyethylene alkyl ether, mp2 kilograms of penetrant, and 722 kilograms of water for later use.

[0016] First prepare 68 kilograms of sodium bisulfate, and mix 8 kilograms of anhydrous sodium sulfate, 16 kilograms of concentrated sulfuric acid, and 44 kilograms of water according to the weight percentage of anhydrous sodium sulfate, concentrated sulfuric acid, and water at 12%: 24%: 64%. When the temperature is high, 68 kg of sodium bisulfate is made.

[0017] Then take 722 kilograms of water and heat it to 100 degrees in the reaction axe, then add 136 kilograms of polyoxyethylene alkyl ether, 68 kilograms of sodium bisulfate, 72 kilograms of sodium alkyl sulfonate, 2 kilograms of penetrant mp, and stir while adding , ...

Embodiment 2

[0019] Prepare 1000 kg of auxiliary agent, in weight percentage sodium bisulfate 6%, sodium alkyl sulfonate 6.5%, polyoxyethylene alkyl ether 12%, penetrant mp 0.5%, water 75%, take sodium alkyl sulfonate 65 kilograms, 120 kilograms of polyoxyethylene alkyl ether, 5 kilograms of penetrant mp, and 750 kilograms of water for use.

[0020] First prepare 60 kilograms of sodium bisulfate, and mix 7.2 kilograms of anhydrous sodium sulfate, 14.4 kilograms of concentrated sulfuric acid, and 38.4 kilograms of water according to the weight percentage of anhydrous sodium sulfate, concentrated sulfuric acid, and water at 12%: 24%: 64%. When the temperature is high, 60 kilograms of sodium bisulfate is made.

[0021] Then take 750 kilograms of water and heat it to 100 degrees in the reaction axe, then add 120 kilograms of polyoxyethylene alkyl ether, 60 kilograms of sodium bisulfate, 65 kilograms of sodium alkyl sulfonate, and 5 kilograms of penetrant mp, and stir while adding , After stirring ...

Embodiment 3

[0023] Prepare 1000 kg of additives, in weight percentage sodium bisulfate 7.5%, sodium alkyl sulfonate 8%, polyoxyethylene alkyl ether 14.4%, penetrant mp 0.1%, water 70%, take sodium alkyl sulfonate 80 kilograms, 144 kilograms of polyoxyethylene alkyl ether, 1 kilogram of penetrant mp, and 700 kilograms of water for use.

[0024] First, 75 kg of sodium bisulfate was prepared, and the rest was the same as in Example 1.

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PUM

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Abstract

The paper making assistant consists of sodium hydrogen sulfate 6-7.5 wt%, alkyl sodium sulfonate 6.5-8 wt%, polyoxyethylene alkyl ether 12-15 wt%, penetrant mp 0.1-0.5 wt%, and water 70-75 wt%. The sodium hydrogen sulfate is prepared with anhydrous sodium sulfate, concentrated sulfuric acid and water in 20 deg.c in the weight ratio of 12 % to 24 % to 60 % and through mixing. The assistant can result in high production efficiency and low environmental pollution.

Description

Technical field: [0001] The invention relates to a formulation of a papermaking aid. Background technique: [0002] Existing papermaking auxiliaries generally include anthraquinone and alkali sulfide. They are used to remove lignin, pectin, pigment, ash, etc. through high-temperature cooking to obtain effective fibers. The main problem of these auxiliaries in papermaking applications is the long cooking time. , Consuming a lot of fuel and serious environmental pollution. The penetrating power of anthraquinone and alkali sulfide is weak, the speed of dissolving pectin is slow, and the obtained fiber is not easy to rinse, so the labor intensity is high and the production efficiency is low. Anthraquinone is a carcinogen, and alkali sulfide is also harmful to the human body, thus seriously polluting the environment. Summary of the invention: [0003] The purpose of the present invention is to provide a formulation of a papermaking aid that can greatly reduce environmental pollution,...

Claims

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Application Information

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IPC IPC(8): D21C3/20
Inventor 赵炳晨
Owner 赵炳晨
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