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Composition for controlling organic pollutant sedimentation during pulping and papermaking production and papermaking method

An organic pollutant, pulping and papermaking technology, applied in the field of pulping and papermaking, can solve the problems of large composition changes, unsatisfactory effects, limited effectiveness, etc., and achieve the effects of reducing viscosity, eliminating deposition problems, and reducing negative effects and hazards

Active Publication Date: 2017-02-22
RISINGSTAR BIOTECH GUANGZHOU
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  • Summary
  • 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 for controlling organic pollutant sedimentation during pulping and papermaking production and papermaking method
  • Composition for controlling organic pollutant sedimentation during pulping and papermaking production and papermaking method
  • Composition for controlling organic pollutant sedimentation during pulping and papermaking production and papermaking method

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 produced by this paper mill, the sticky matter composition and process conditions, the composition formula of multiple perhydrolase has been tested in the laboratory, and finally an optimal composition is selected (experimental group 4 in 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 th...

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Abstract

The invention discloses a composition for controlling organic pollutant sedimentation during pulping and papermaking production and a papermaking method. Effective ingredients of the composition include a bio-enzyme with a peroxide hydrolyzing function and a precursor of hydrogen peroxide and / or a precursor capable of generating hydrogen peroxide, wherein the weight ratio of the bio-enzyme to the precursor in the composition is 1:(0.1-200). The papermaking method comprises the steps that hydrous fiber papermaking pulp is formed; after the composition is added into the fiber papermaking pulp for a reaction, the obtained pulp is conveyed onto a net, water is drained, and paper sheets are formed; the paper sheets are squeezed and dried to obtain paper products. Through the composition, glue and especially sedimentation of viscous matter during pulping and papermaking production can be remarkably controlled, negative effects and harm possibly brought by the glue to papermaking are reduced, papermaking production efficiency and product quality are improved, energy consumption is lowered, production cost is saved for papermaking enterprises, economic profits are increased, and the application range is wide.

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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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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