Composition and method for controlling deposition of organic pollutants in pulp and paper production

A technology of organic pollutants and compositions, applied in the field of pulp and paper making, can solve problems such as narrow application range, unsatisfactory effect, and limited effectiveness, and achieve the effects of wide application range, elimination of deposition problems, and reduction of negative effects and hazards

Active Publication Date: 2019-03-05
RISINGSTAR BIOTECH GUANGZHOU
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In conventional technology, DeTac (U.S. Hercules Inc. product) is often used to control organic matter deposition, but the problem is that the effect is poor and the scope of application is narrow, especially for fatty acid soap resin deposition.
[0012] However, due to the selectivity of biological enzymes, the existing bio-enzyme technology for treating organic pollutants and reducing viscosity is limited to one or a certain type of viscous materials
However, there are many kinds of viscous substances in papermaking pulp, and their composition changes greatly. Therefore, the effect of current biological enzymes on the control of stickies is not ideal.
[0013] In short, so far, there is no really a completely effective solution to the problem of organic matter deposition

Method used

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  • Composition and method for controlling deposition of organic pollutants in pulp and paper production
  • Composition and method for controlling deposition of organic pollutants in pulp and paper production
  • Composition and method for controlling deposition of organic pollutants in pulp and paper production

Examples

Experimental program
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Effect test

Embodiment 1

[0100] A papermaking method for controlling the deposition of organic pollutants in pulp and papermaking production, the method is mainly used for the control of organic pollutants (ie, the following stickies) in the process of producing newsprint by recycling waste newspapers.

[0101] 1. Materials

[0102] The pulp of deinked old newspaper pulp (ONP) was obtained from a newsprint paper mill in Guangdong. The conventional sticky matter control agent adopts the registered trademark product of Ashland Company of the United States For reference comparison. Except for the comparative StickyAway (polyvinyl acohol acetate-esterase) which was provided by Novozymes in the United States, biological enzyme products such as perhydrolase and other oxidases and hydrolases were all provided by Ruichenxing Biotechnology (Guangzhou) Provided by Co., Ltd., the number behind is the internal enzyme code of the company. Hydrogen peroxide (30% W / V concentration) and peracetic acid were provid...

Embodiment 2

[0116] A large packaging paper manufacturer in East China produces corrugated paper and containerboard. In recent years, the stickiness of recycling OCC waste paper has become increasingly serious. The company had tried a variety of sticky control products without satisfactory results. According to the raw material that this paper mill produces, sticky matter composition and process condition, tested the composition formulation of a plurality of perhydrolase in the laboratory, finally selected an optimal composition (experimental group 4 in the embodiment 1, the cleansing enzymes described below TM ) machine test, and carried out a period of nearly two months of direct comparison with sticky substance control enzymes based on StickyAway products (U.S. Buckman products, trade name Maxizyme). The results are shown in Table 2 and Figure 7-8 shown.

[0117] The results in Table 2 show that at the same cost of use, the clean enzyme based on perhydrolase TM Much better than St...

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Abstract

A composition controlling deposition of an organic contaminant during pulp and paper making. Active ingredients thereof comprise: 1) a bio-enzyme having a perhydrolysis function; and ii) hydrogen peroxide and / or a precursor enabling generation of hydrogen peroxide. The part-by-weight ratio of i) to ii) in the composition is 1 : 0.1-200. Also provided is a paper making method in which the composition is added to a paper-making fiber slurry to control deposition of an organic contaminant.

Description

technical field [0001] The invention belongs to the technical field of pulping and papermaking, in particular to a composition and a papermaking method for controlling deposition of organic pollutants in pulping and papermaking production. Background technique [0002] In the paper manufacturing industry, an area of ​​increasing concern is the recovery and secondary use of recovered paper; however, the removal of impurities from the recovered paper or from the process streams used to process it is key to being able to reuse the recovered paper. In the papermaking process, the deposition of organic pollutants (also called precipitation) is very detrimental to the quality of paper products and the efficiency of papermaking production. The two main specific reasons for this problem are resin deposition and sticky deposits. Among them, the main component of resin deposits is naturally present in wood and released during the pulping and papermaking process; from a physical point ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21C5/02D21C9/00D21C9/08
CPCD21C5/022D21C5/027D21C9/008D21C9/086Y02W30/64
Inventor 王祥槐谢焱张光林
Owner RISINGSTAR BIOTECH GUANGZHOU
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