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A kind of compound enzyme preparation and the technology for preparing paper pulp

A compound enzyme preparation and pulp technology, applied in papermaking, textiles and papermaking, using microorganisms/enzymatic cellulose treatment, etc., can solve the problems of long cycle, achieve short cycle, improve bleachability, and improve bleachability.

Active Publication Date: 2020-11-17
陈五岭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a compound enzyme preparation, which solves the problem that the cycle of using microorganisms to treat plant fiber raw materials in the prior art is too long

Method used

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  • A kind of compound enzyme preparation and the technology for preparing paper pulp

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Step 1, the poplar wood material is prepared by equipment, and the filamentous material suitable for pulping is obtained through the processes of peeling, cutting, chipping and cooking;

[0049] Step 2: After the material is washed by a drum washing machine and dehydrated by a spiral dehydrator, it is moved into the heat preservation reaction chamber through a conveyor belt, and the compound enzyme preparation solution is added according to the material ratio of 1:4, and the pH is adjusted to 5.5, and the temperature in the tank is kept at 60°C. 120min; after the reaction, the liquid was recovered to the liquid storage tank; the compound enzyme solution was prepared by dissolving the industrial enzyme powder preparation in the buffer solution. The preparation process of the compound enzyme preparation solution was as follows: 10 parts of laccase and 15 parts of xylanase , 3 parts of pectinase, and 1 part of mannanase were weighed respectively for laccase enzyme powder, x...

Embodiment 2

[0054] Step 1, the poplar wood material is prepared by equipment, and the filamentous material suitable for pulping is obtained through the processes of peeling, cutting, chipping and cooking;

[0055] Step 2: After the material is washed by a drum washing machine and dehydrated by a screw dehydrator, it is moved into the heat preservation reaction chamber through a conveyor belt, and the compound enzyme preparation solution is added according to the material ratio of 1:3, and the pH is adjusted to 5.7, and the temperature in the tank is maintained at 63°C. 135min; after the reaction, the liquid was recovered to the liquid storage tank; the compound enzyme solution was prepared by dissolving the industrialized enzyme powder preparation in the buffer solution. The preparation process of the compound enzyme preparation solution was as follows: 20 parts of laccase and 10 parts of xylanase , 5 parts of pectinase, and 1 part of mannanase weighed respectively laccase enzyme powder, x...

Embodiment 3

[0060] Step 1, the poplar wood material is prepared by equipment, and the filamentous material suitable for pulping is obtained through the processes of peeling, cutting, chipping and cooking;

[0061] Step 2, after the material is washed by a drum washing machine and dehydrated by a spiral dehydrator, it is moved into the heat preservation reaction chamber through a conveyor belt, and the compound enzyme preparation solution is added according to the material ratio of 1:4, and the pH is adjusted to 6.0, and the temperature in the tank is maintained at 65°C. 150min; after the reaction, the liquid was recovered to the liquid storage tank; the compound enzyme solution was prepared by dissolving the industrialized enzyme powder preparation in the buffer solution. The preparation process of the compound enzyme preparation solution was as follows: 15 parts of laccase and 13 parts of xylanase , 4 parts of pectinase, and 1 part of mannanase weighed respectively laccase enzyme powder, ...

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Abstract

The invention discloses a complex enzyme preparation. The complex enzyme preparation is prepared from 10-20 parts of laccase, 10-15 parts of xylanase, 3-5 parts of pectinase and 1 part of mannose. According to the complex enzyme preparation, the problem that in the prior art, the period for treating plant fiber raw materials by adopting microorganisms is too long is solved. The invention further discloses a process for preparing paper pulp by adopting the above complex enzyme preparation, and a bio-enzyme method is adopted to combine with mechanical pulping.

Description

technical field [0001] The invention belongs to the technical field of compound enzyme preparations, and relates to a compound enzyme preparation and a process for preparing pulp by using the compound enzyme preparation. Background technique [0002] The environmental pollution of the paper industry has been widely concerned by people. The traditional pulping production processes mainly include alkaline pulping, ammonium pulping, lime pulping, sodium nitrite pulping and blasting pulping. These traditional pulping techniques use a large amount of chemical raw materials to extract lignin pulp in wood, stalks, rice straw, reeds, and bamboo. During the cooking process, a large amount of chemical residues and reactants are produced, and a large amount of black liquor pollutants are generated, which increases the investment in effluent treatment and increases the cost of papermaking. The subsequent bleaching process uses a large amount of chlorine-containing oxidative bleaching a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21C5/00
CPCD21C5/005
Inventor 陈五岭李祥凌刘保军于烽黄敏刚郭彦钊
Owner 陈五岭
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