A kind of waste paper pulp deinking stabilizer and preparation method thereof

A stabilizer and waste paper pulp technology, which is applied in pulp bleaching, waste paper processing, cellulose pulp post-treatment, etc., can solve the problems affecting the normal operation of the bleaching system, affecting the chemistry of the wet end of the paper machine, and increasing the calcium content, and achieve good results. Deinking stability effect, stable deinking effect, effect of preventing continuous decomposition

Active Publication Date: 2020-10-20
SHANYING INT HLDG CO LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A large amount of calcium carbonate leads to a great increase in calcium content in waste paper pulp, and white water is reused in waste paper pulping, pulp washing and other processes, which further increases the calcium ion content. Therefore, the use of sodium silicate stabilizers in waste paper pulp bleaching can easily cause Calcium silicate scaling problem affects the normal operation of the bleaching system. It will also bring anion garbage, affect the chemistry of the wet end of the paper machine, and cause paper problems such as dust

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A waste paper pulp deinking stabilizer, comprising the following components: in parts by weight, the waste paper pulp deinking stabilizer comprises the following components: 0.02 parts of 2-aminoethanol-1-phosphoric acid, 0.05 parts of magnesium salt, poly 3 parts of ammonium acrylate, 98 parts of water;

[0038] Wherein, the 98 parts of water are divided into two parts, one part is 70 parts, and one part is 28 parts;

[0039] Described magnesium salt is the mixture of magnesium chloride and magnesium nitrate; The mass ratio of described magnesium chloride and magnesium nitrate is 2:1;

[0040] The ammonium polyacrylate M=2 million;

[0041] The preparation method of described waste paper pulp deinking stabilizer comprises the following preparation steps:

[0042] (1) Mix 2-aminoethanol-1-phosphoric acid, ammonium polyacrylate, and 70 parts of water, heat to 60°C, and stir at 300 rpm to obtain solution 1;

[0043] (2) dissolving the magnesium salt into the remaining ...

Embodiment 2

[0046] A waste paper pulp deinking stabilizer, comprising the following components: in parts by weight, the waste paper pulp deinking stabilizer comprises the following components: 0.2 part of 2-aminoethanol-1-phosphoric acid, 0.01 part of magnesium salt, poly 0.01 parts of ammonium acrylate, 90 parts of water;

[0047] Wherein, the 90 parts of water are divided into two parts, one part is 60 parts, and one part is 30 parts;

[0048] Described magnesium salt is the mixture of magnesium chloride and magnesium nitrate; The mass ratio of described magnesium chloride and magnesium nitrate is 1:1;

[0049] The ammonium polyacrylate M=500,000;

[0050] The preparation method of described waste paper pulp deinking stabilizer comprises the following preparation steps:

[0051] (1) Mix 2-aminoethanol-1-phosphoric acid, ammonium polyacrylate, and 60 parts of water, heat to 50°C, and stir at 500 rpm to obtain solution 1;

[0052] (2) dissolving the magnesium salt into the remaining 30...

Embodiment 3

[0055] A waste paper pulp deinking stabilizer, comprising the following components: in parts by weight, the waste paper pulp deinking stabilizer comprises the following components: 0.5 parts of 2-aminoethanol-1-phosphoric acid, 1 part of magnesium salt, poly 5 parts of ammonium acrylate, 120 parts of water;

[0056]Wherein, the 120 parts of water are divided into two parts, one part is 80 parts, and one part is 40 parts;

[0057] Described magnesium salt is the mixture of magnesium chloride and magnesium nitrate; The mass ratio of described magnesium chloride and magnesium nitrate is 3:1;

[0058] The ammonium polyacrylate, M=4 million;

[0059] The preparation method of described waste paper pulp deinking stabilizer comprises the following preparation steps:

[0060] (1) Mix 2-aminoethanol-1-phosphoric acid, ammonium polyacrylate, and 80 parts of water, heat to 80°C, and stir at 200 rpm to obtain solution 1;

[0061] (2) dissolving the magnesium salt into the remaining 40 ...

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PUM

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Abstract

The invention belongs to the technical field of waste paper treatment and recycling, and particularly relates to a waste paper pulp deinking stabilizer and a preparation method thereof. The waste paper pulp deinking stabilizer is prepared from the following components: 2-aminoethanol-phosphoric acid, magnesium salt, ammonium polyacrylate and water. The deinking stabilizer can effectively shield transition metal ions and has a good deinking stability effect, and the preparation method of the deinking stabilizer is simple and easy to industrially popularize and implement.

Description

technical field [0001] The invention belongs to the technical field of waste paper treatment and recycling, and in particular relates to a waste paper pulp deinking stabilizer and a preparation method thereof. Background technique [0002] The continuous and steady growth of the paper industry has driven the development of upstream industries such as forestry, chemical industry, machinery manufacturing, energy and electricity, and logistics, and also promoted the development of downstream industries such as product packaging, medical and health care, printing and publishing, cultural communication, and business offices. However, the resource, energy and environmental constraints faced by the paper industry have become increasingly prominent, and recycling, low-carbon and green economy have become new development themes. At present, paper mills around the world have begun to transform from traditional pulp and paper to comprehensive green industry of biomass refining. Theref...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21C5/02D21C9/10D21H17/10D21H17/37D21H17/66
CPCD21C5/027D21C9/1036D21H17/10D21H17/37D21H17/66Y02W30/64
Inventor 吴建雄宋杰陈学萍高宽刘媛
Owner SHANYING INT HLDG CO LTD
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