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A kind of environment-friendly deinking agent and preparation method thereof

A deinking agent and environmental protection technology, applied in the field of environmental protection deinking agent and its preparation, can solve the problems of inability to meet the deinking technology of waste paper, uneven product performance, low ink removal efficiency, etc., and achieve good dispersion and anti-deposition performance. , The effect of high deinking efficiency and convenient storage and transportation

Inactive Publication Date: 2017-07-04
SHAANXI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing various deinking agents have different product performance due to different waste paper raw materials or their own production technology level, and the removal efficiency of ink is generally low, or some deinking agents are in production. Too much talcum powder and other inorganic fillers are added in the process, resulting in too high ash content of waste paper pulp after deinking treatment, which is not conducive to further bleaching treatment, or is not conducive to the improvement of pulp grade
At the same time, due to the continuous improvement of the quality of printing inks, many existing waste paper deinking agents can no longer meet the requirements of the existing waste paper deinking technology.

Method used

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  • A kind of environment-friendly deinking agent and preparation method thereof
  • A kind of environment-friendly deinking agent and preparation method thereof
  • A kind of environment-friendly deinking agent and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Environmentally friendly deinking agent raw materials (parts by weight): 8 parts of sodium silicate, 15 parts of talc, 15 parts of sodium sulfate, 35 parts of sodium carbonate, 8 parts of ethylene glycol, 8 parts of surfactant, and 8 parts of penetrant.

[0032] Described surfactant is mixed from ethylene glycol monostearate, propylene glycol monostearate, diethylene glycol monostearate, described ethylene glycol monostearate, propylene glycol monostearate The mass ratio of fatty acid ester and diethylene glycol monostearate is 1:1:1.

[0033] The penetrant is formed by mixing dibutyl ether, isopentyl ether and di-tert-butyl ether, and the mass ratio of the dibutyl ether, isopentyl ether and di-tert-butyl ether is 1:1:1.

[0034] The preparation method of the environmentally friendly deinking agent: the stirring speed is 300 rpm, first add sodium silicate; then add talc, stir for 5 minutes; then add sodium sulfate, stir for 5 minutes; then add sodium carbonate, stir for...

Embodiment 2

[0036] According to the raw material ratio and method of Example 1, the environmental protection deinking agent is prepared, the difference is only that: the surfactant is mixed with ethylene glycol monostearate and propylene glycol monostearate, and the ethylene glycol monostearate is mixed. The mass ratio of alcohol monostearate and propylene glycol monostearate is 1:1. That is, the environment-friendly deinking agent of Example 2 is obtained.

Embodiment 3

[0038] The environmental protection deinking agent is prepared according to the raw material ratio and method of Example 1. The only difference is that the surfactant is mixed with ethylene glycol monostearate and diethylene glycol monostearate. The mass ratio of ethylene glycol monostearate and diethylene glycol monostearate is 1:1. That is, the environmental protection deinking agent of Example 3 is obtained.

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Abstract

The invention discloses an environment-friendly deinking agent. The environment-friendly deinking agent is prepared from, by weight, 5-10 parts of sodium silicate, 10-20 parts of talcum powder, 10-20 parts of sodium sulfate, 30-40 parts of sodium carbonate, 5-10 parts of ethylene glycol, 5-10 parts of a surface active agent and 5-10 parts of a penetrant. The environment-friendly deinking agent has simple components, the preparation method is simple, the deinking efficiency is high, meanwhile, damage to fiber is small, no pollution is caused to the environment, and meanwhile energy is saved.

Description

technical field [0001] The invention relates to a deinking agent and a preparation method thereof, in particular to an environment-friendly deinking agent and a preparation method thereof. Background technique [0002] Due to the increasing shortage of raw fiber raw materials for papermaking and the increasing awareness of environmental protection worldwide, waste paper recycling has become an important source of papermaking fiber raw materials, and various waste paper recycling technologies emerge one after another. Among them, the use of waste paper to produce high-quality household production paper has always been the development direction of waste paper utilization technology. In the process of producing high-quality paper pulp from waste paper, necessary or sufficient deinking of waste paper is a key link in the process of waste paper pulping. Because all kinds of waste paper are more or less processed by printing, especially waste newspapers, waste book papers and oth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D9/04
Inventor 吴迎春聂峰
Owner SHAANXI UNIV OF TECH
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