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Papermaking pulping cooking auxiliary

A cooking aid and pulping technology, which is applied in the chemical industry, can solve the problems of high pulping cost, high environmental pollution, and difficult bleaching of pulp, and achieve the effects of shortening cooking time, no discharge of three wastes, and reducing costs

Inactive Publication Date: 2005-05-04
曾国奇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, 74.87% of our country uses alkali sulfide, and some use anthraquinone and its derivatives, but they all have shortcomings such as pipeline scaling, equipment corrosion, large environmental pollution, difficult bleaching of pulp, and high pulping costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] First, take 10 kg of deionized water and put it into the reaction kettle to raise the temperature to 45°C, then take 10 kg of fatty alcohol polyoxyethylene ether, 10 kg of sodium alkyl sulfonate, 1 kg of sodium butylnaphthalene sulfonate, and 0.2 kg of sodium pyrophosphate. kg, 1 kg of sodium methylene bis-naphthalene sulfonate, and 0.5 kg of sodium carboxymethyl cellulose were added to heated deionized water for stirring, and the heat preservation was controlled and reacted at 45°C for 1 hour, and then 0.1 kg of raw material sodium sulfate, sulfuric acid 0.1 kg was added to the reaction kettle to be stirred and neutralized for 1 hour, and the finished product was cooled to normal temperature and then filled and delivered.

Embodiment 2

[0013] Take 50 kg of deionized water and put it into the reaction kettle to raise the temperature to 85°C, then take 50 kg of fatty alcohol polyoxyethylene ether, 45 kg of sodium alkyl sulfonate, 10 kg of sodium butylnaphthalene sulfonate, and 10 kg of sodium pyrophosphate , 10 kg of sodium methylene bis-naphthalene sulfonate, and 5 kg of sodium carboxymethyl cellulose were added to heated deionized water for stirring, and the temperature was controlled to react at 85°C for 2 hours, and then 10 kg of raw material sodium sulfate, 10 kg of sulfuric acid 1 kg was added to the reaction kettle to be stirred and neutralized for 2 hours, and the processed finished product was cooled to normal temperature and ready to be filled and delivered.

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PUM

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Abstract

This invention is a pulping digestion auxiliary agent of paper making. It is prepared by the feed of fatty alcohol-polyexythelene ether, alkyl sodium sulfate, the putylnaphthalene monosulfonic acid, the sodium pyrophosphate, carboxyme-thylcellulose sodium, sodium sulfate, sulfuric acid and the deionized water. It can be gauging canned after the uniform mixing. This invention is strong acid, strong alkali and high temperature fastness, and it has good dispersion and filtration in water. It can reduce the amount of alkali usage, shorten the time of distillation. The production of this invention is sanitary.

Description

Technical field: [0001] The invention relates to a papermaking pulping cooking aid belonging to the technical field of chemical industry. Background technique: [0002] At present, the history of cooking development can be divided into three stages from the perspective of countries in the world: the stage of inorganic oxidizing cooking aids, the main representative is sodium sulfide; the stage of organic oxidizing cooking aids, the main representative is anthraquinone, which was first released in Canada in 1973 ; Surfactant cooking stage. At present, 74.87% of our country uses alkali sulfide, some use anthraquinone and its derivatives, but they all have the disadvantages of pipeline fouling, equipment corrosion, large environmental pollution, difficult bleaching of pulp, and high pulping cost. In order to overcome the above-mentioned problems, the developed countries in the world have used surfactant additives successively since the early 1990s. From the data, they either u...

Claims

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Application Information

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IPC IPC(8): D21C3/02
Inventor 夏气强曾国奇
Owner 曾国奇
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