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Bureau wastepaper composite deinking agent and preparing method thereof

A deinking agent and composite technology are applied in the field of deinking agent and its preparation, which can solve problems such as difficulty in deinking effect, and achieve the effects of good decontamination effect, high yield and low cost.

Inactive Publication Date: 2007-08-08
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the two types of surfactants have obvious advantages for deinking, with the emergence of different quality inks, it has become more and more difficult to achieve good deinking effect with one-component surfactants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Composite deinking agent, composition is as follows, by weight percentage:

[0026] Stearic acid 4%, oleic acid 15%, acrylic acid 2%, maleic anhydride 2%, alkyl fatty acid polyoxyethylene ether (OP) 4%, lauryl alcohol 1%, Tween 2%, alkylbenzenesulfonic acid Sodium 3%, the rest is water.

[0027] The preparation method is:

[0028] Put the above components into a 78°C constant temperature reaction kettle in order, and at this temperature, stir at 150 rpm for 50 minutes to make them evenly mixed, adjust the pH to 9.5 with NaOH, put it in a bucket, let it stand, and cool it naturally At room temperature, the appearance is milky white paste.

Embodiment 2

[0030] Composite deinking agent, composition is as follows, by weight percentage:

[0031] Stearic acid 5%, oleic acid 18%, acrylic acid 4%, maleic anhydride 4%, alkyl fatty acid polyoxyethylene ether (OP) 5%, lauryl alcohol 2%, Tween 3%, alkylbenzenesulfonic acid Sodium 4%, balance water.

[0032] The preparation method is:

[0033] Put the above-mentioned components into a constant temperature reactor at 80°C in sequence, and at this temperature, stir at 140 rpm for 60 minutes to make them evenly mixed, adjust the pH to 10 with NaOH, put in barrels, let stand, and cool naturally At room temperature, the appearance is milky white paste.

Embodiment 3

[0035] Composite deinking agent, composition is as follows, by weight percentage:

[0036] Stearic acid 3%, oleic acid 12%, acrylic acid 2%, maleic anhydride 1%, alkyl fatty acid polyoxyethylene ether (OP) 3%, lauryl alcohol 1%, Tween 2%, alkylbenzenesulfonic acid Sodium 3%, the rest is water.

[0037] The preparation method is:

[0038] Put the above components into a 75°C constant temperature reaction kettle in order, and at this temperature, stir at 145 rpm for 45 minutes to make them evenly mixed, adjust the pH to 9 with NaOH, put them in barrels, stand still, and cool naturally At room temperature, the appearance is milky white paste.

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PUM

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Abstract

The invention discloses a MOW void agent and making method in the void agent technical domain, which comprises the following steps: allocating raw material with 2-5% stearic acid, 10-20% oleic acid, 1-5% acrylic acid, 1-4% maleic anhydride, 3-5% alkyl aliphatic polyoxyethylene ester, 1-2% dodecanol, 2-3% tween, 3-4% sodium benzosulfonate alkyl and water; adding each component into thermostatic autoclave at 75-80 deg.c sequently; stirring at 130-150r / min for 45-60 min; blending evenly; adjusting pH value to 9-10 through NaOH; loading in the barrel; stewing; cooling naturally to indoor temperature; obtaining the product.

Description

technical field [0001] The invention belongs to the field of deinking agent technology, and in particular relates to a deinking agent required for utilization of MOW (Mixed Office Waste paper) and a preparation method thereof. Background technique [0002] Waste paper recycling has become an important material source of paper and pulp in my country. In 2005, the total output of paper and cardboard in my country reached 52.1 million tons, and the total consumption was 54.7 million tons, an increase of 13.76% and 10.94% respectively compared with 2004, accounting for about 10% and 14% of the world's total, ranking second in the world. second only to the United States. In recent years, my country's waste paper recycling rate has been close to 40%. [0003] Compared with several processes for producing pulp from wood, recycled paper has lower environmental management costs and lower production costs. According to reports, the application of 1 ton of recycled paper made from 10...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D9/04
Inventor 王正顺李永宝袁令群陈嘉川谢益民王海峰
Owner QILU UNIV OF TECH
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