Preparation method of green and environment-friendly efficient de-inking agent

A deinking agent and fat technology, which is applied in the field of preparation of green and environmentally friendly high-efficiency deinking agents, can solve the problems of high irritation, ideal deinking effect, long residual time, etc., and achieves low price, excellent deinking effect, and biodegradation. good effect

Active Publication Date: 2017-04-26
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the commonly used deinking agents on the market now only consider the deinking effect, and use substances with poor biodegradability, which are not easy to be disposed of after use, and form long-term residues in the environment, affecting the ecological environment
Although the materials used in some patents have better biodegradability, the deinking effect is not very satisfactory.
[0005] The existing alkylphenol polyoxyethylene ether is one of the non-ionic surfactants commonly used in deinking products, but it is highly irritating and remains in the environment for a long time, causing environmental pollution, so it is explicitly ordered in many developed countries Prohibited Products
Chinese patent document CN104710853.A disc

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of green environment-friendly high-efficiency deinking agent provided by the present invention, its composition is made up of five kinds of components: Cardanol polyoxyethylene ether; Carbon chain length is C 12 , a fatty alcohol polyoxyethylene ether with a polymerization number of 8; the carbon chain length is C 12 , Fatty alcohol polyoxyethylene ether sulfate sodium salt with a polymerization number of 2; linear dodecylbenzenesulfonic acid sodium salt, diatomaceous earth.

[0030] The mass ratio of each component in the deinking agent is: the mass fraction of cardanol polyoxyethylene ether is 25%; the mass fraction of fatty alcohol polyoxyethylene ether is 15%; the mass fraction of fatty alcohol polyoxyethylene ether sodium sulfate is 25%, The mass fraction of linear dodecylbenzenesulfonic acid sodium salt is 25%, and the mass fraction of diatomite is 10%.

[0031] The preparation method of cardanol polyoxyethylene ether described therein: put cardanol and ca...

Embodiment 2

[0033] A kind of green environment-friendly high-efficiency deinking agent provided by the present invention, its composition is made up of five kinds of components: Cardanol polyoxyethylene ether; Carbon chain length is C 13 , a fatty alcohol polyoxyethylene ether with a polymerization number of 7; the carbon chain length is C 13 , Potassium salt of fatty alcohol polyoxyethylene ether sulfate with a polymerization number of 3; linear sodium dodecylbenzenesulfonate; diatomaceous earth.

[0034] The mass ratio of each component in the deinking agent is: the mass fraction of cardanol polyoxyethylene ether is 40%; the mass fraction of fatty alcohol polyoxyethylene ether is 10%; the mass fraction of fatty alcohol polyoxyethylene ether sulfate potassium salt is 20%. The mass fraction of linear dodecylbenzenesulfonic acid sodium salt is 20%, and the mass fraction of diatomaceous earth is 10%.

[0035] The preparation method of cardanol polyoxyethylene ether described herein: put ca...

Embodiment 3

[0037] A kind of green environment-friendly high-efficiency deinking agent provided by the present invention, its composition is made up of five kinds of components: Cardanol polyoxyethylene ether; Carbon chain length is C 14 , a fatty alcohol polyoxyethylene ether with a polymerization number of 5; the carbon chain length is C 14 , The number of polymerization is 2 fatty alcohol polyoxyethylene ether sodium salt; linear calcium dodecylbenzenesulfonate; diatomaceous earth.

[0038] The mass ratio of each component in the deinking agent is: the mass fraction of cardanol polyoxyethylene ether is 20%; the mass fraction of fatty alcohol polyoxyethylene ether is 25%; the mass fraction of fatty alcohol polyoxyethylene ether sulfate potassium salt is 20%, The mass fraction of calcium salt of linear dodecylbenzenesulfonate is 20%, and the mass fraction of diatomite is 15%.

[0039]The preparation method of cardanol polyoxyethylene ether described therein: put cardanol and catalyst KO...

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Abstract

The invention discloses a preparation method of a green and environment-friendly efficient de-inking agent and belongs to the technical field of wastepaper de-inking. The green and environment-friendly efficient de-inking agent prepared by the method does not contain an alkylphenol polyoxyethylene ether type component which has poor biodegradability and is not environmentally friendly. The de-inking agent disclosed by the invention is formed by compounding anacardol polyoxyethylene ether synthesized by a natural product anacardol, fatty alcohol polyoxyethylene ether and fatty alcohol polyoxyethylene ether sulfate of natural fatty alcohol, linear-alkylbenzene sulfonate with good biodegradability and diatomite. The obtained de-inking agent has good biodegradability and is green and environmentally friendly, has good penetration, emulsification, washing and adsorption effects and has a good de-inking effect, so that the de-inking agent is one green and efficient environment-friendly type de-inking agent.

Description

technical field [0001] The invention relates to a preparation method of a green, environment-friendly and high-efficiency deinking agent, belonging to the technical field of waste paper deinking. Background technique [0002] In recent years, with the continuous reduction of the earth's forest resources and people's increasing emphasis on environmental protection, secondary fiber has become an important fiber source in the paper industry worldwide. It has become more and more common behavior to use waste paper as an important papermaking raw material and improve the recycling rate of waste paper. [0003] Waste paper pulping has a series of advantages, such as reducing pollution and saving resources. However, in the process of deinking and recycling waste paper, there are also a series of problems such as poor product quality and certain impact on the ecological environment. Therefore, it is particularly important to develop a green and efficient waste paper deinking agent ...

Claims

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Application Information

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IPC IPC(8): C09D9/04
CPCC09D9/04
Inventor 龙柱王凤
Owner JIANGNAN UNIV
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