Catalytic pyrolyzing agent for pulping without steaming and boiling

A catalytic cracking, non-cooking technology, which can be used in cellulose raw material pulping, pulp bleaching, textile and papermaking, etc., can solve the problem of undisclosed catalysts or agents

Inactive Publication Date: 2006-08-16
雷金丰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Both of these two patent applications have adopted the method of catalysis, because the reaction conditions are mild, no black liquor is produced, but the above-mentioned two technologies are all produced by batch method in terms of technology, and their catalysts or medicaments are not disclosed. Analytical, also free of biological agents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: a kind of composition of the present invention and its weight ratio are: sodium hypochlorite 5~10%, triethanolamine 2~10%, cellulase 10~22%, hydroxyanthraquinone 0.04~0.08%, EDTA sodium salt 0.03~ 0.08%, sodium dithionite 0.03-0.08%, the rest is sodium hydroxide.

Embodiment 2

[0017] Embodiment 2: The second component of the present invention and its weight ratio are: hydrogen peroxide 5-10%, triethanolamine 2-10%, protease 10-22%, aminoanthraquinone 0.04-0.08%, EDTA sodium salt 0.03-0.08 %, sodium dithionite 0.03-0.08%, and the rest is sodium hydroxide.

Embodiment 3

[0018] Embodiment 3: The third component of the present invention and its weight proportion are: sodium hypochlorite 5-10%, triethanolamine 2-10%, hemicellulase 10-22%, hydroxyanthraquinone 0.04-0.08%, EDTA sodium salt 0.03-0.08%, sodium dithionite 0.03-0.08%, and the rest sodium hydroxide.

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PUM

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Abstract

A catalyzer used in pulping without steam cooking which consists of at least one enzyme, one anthraquinone compound, one permeate agent, EDTA sodium salt , oxidative bleacher and alkali. Soak fibrous material in solution of this catalyzer for 2 to 6 hours and its OK.The soak separated after reaction shows light yellow color and can be reutilized owing to the low temperature. Other adventages are low energy consumption, high productivity and low cost.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a non-cooking pulping catalytic cracking agent for pulp production. Background technique [0002] Papermaking was invented by the Chinese and has a history of thousands of years. The key link in papermaking is pulping. The traditional pulping method needs to cook the fiber-containing plants under high temperature and pressure conditions. A large amount of alkali needs to be added during cooking. Legal pulping produces a large amount of black liquor, and papermaking black liquor is a source of pollution that is difficult to deal with. [0003] Solvent pulping is a new technology developed abroad. It mainly uses alcohol organic solvents to pulp. Generally, the reaction temperature is above 100°C, and the reaction time takes several hours. Bio-enzyme pulping has also achieved certain results. But these technologies still have a lot of problems, can't realize suitability for ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C3/00D21C9/10C12S3/08
Inventor 雷金丰
Owner 雷金丰
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