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Waste paper deinking agent with excellent performance and deinking method using same

A waste paper deinking and deinking agent technology, which is applied in processing waste paper, chemical paint/ink remover, paper making, etc., can solve the problems of hard water resistance, high foam, turbidity and delamination, etc., and achieve grease increase The effect of strong solubility and good deinking performance

Active Publication Date: 2015-06-10
JIANGMEN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing sodium dodecylbenzenesulfonate is the most widely used in the cleaning field, has strong degreasing ability, high foam, low cost, good penetration, and occupies about 33.6% of the market share, but the defects that exist are: 1 , Many environmental protection problems, such as the generation of benzene substances after degradation, affecting the natural food chain; 2, not resistant to hard water, often compounded with some soft water substances such as phosphate; 3, using its compound products, it is easy to appear when the concentration is high Turbidity and Stratification

Method used

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  • Waste paper deinking agent with excellent performance and deinking method using same
  • Waste paper deinking agent with excellent performance and deinking method using same

Examples

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Effect test

Embodiment 1

[0024] A waste paper deinking agent with excellent performance is composed of the following components: carboxymethyl modified AEO-9, AEO-9 and A-107.

[0025] The weight ratio of each component in the deinking agent is: carboxymethyl modified AEO-9:AEO-9:A-107=3:2:1.

[0026] A method for preparing waste paper deinking agent, which comprises weighing carboxymethyl-modified AEO-9, AEO-9 and A-107 according to the above weight ratio, and mixing them uniformly to obtain the finished product.

[0027] A method for deinking waste paper deinking agent with excellent performance, comprising the following steps:

[0028] Add NaOH, Na 2 SiO 3 , EDTA, MgSO 4 and H 2 o 2 , disintegrate at 55°C for 15 minutes, add deinking agent after disintegration, and mature in a water bath at 55°C for 15 minutes to ensure sufficient emulsification, dispersion, and reaction of the deinking agent and ink, which is beneficial to the deinking effect Increase, after aging, the slurry is diluted to 1...

Embodiment 2

[0031] A waste paper deinking agent with excellent performance is composed of the following components: carboxymethyl modified AEO-9, AEO-9 and A-107.

[0032] The weight ratio of each component in the deinking agent is: carboxymethyl modified AEO-9:AEO-9:A-107=4.5:2:1.

[0033] A method for preparing waste paper deinking agent, which comprises weighing carboxymethyl-modified AEO-9, AEO-9 and A-107 according to the above weight ratio, and mixing them uniformly to obtain the finished product.

[0034] A method for deinking waste paper deinking agent with excellent performance, comprising the following steps:

[0035] Add NaOH, Na 2 SiO 3 , EDTA, MgSO 4 and H 2 o 2 , disintegrate at 55°C for 15 minutes, add deinking agent after disintegration, and mature in a water bath at 55°C for 15 minutes to ensure sufficient emulsification, dispersion, and reaction of the deinking agent and ink, which is beneficial to the deinking effect Increase, after aging, the slurry is diluted to...

Embodiment 3

[0038] A waste paper deinking agent with excellent performance is composed of the following components: carboxymethyl modified AEO-9, AEO-9 and A-107.

[0039] The weight ratio of each component in the deinking agent is: carboxymethyl modified AEO-9:AEO-9:A-107=6:2:1.

[0040] A method for preparing waste paper deinking agent, which comprises weighing carboxymethyl-modified AEO-9, AEO-9 and A-107 according to the above weight ratio, and mixing them uniformly to obtain the finished product.

[0041] A method for deinking waste paper deinking agent with excellent performance, comprising the following steps:

[0042] Add NaOH, Na 2 SiO 3 , EDTA, MgSO 4 and H 2 o 2 , disintegrate at 55°C for 15 minutes, add deinking agent after disintegration, and mature in a water bath at 55°C for 15 minutes to ensure sufficient emulsification, dispersion, and reaction of the deinking agent and ink, which is beneficial to the deinking effect Increase, after aging, the slurry is diluted to 1%,...

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Abstract

The invention relates to a waste paper deinking agent with excellent performance. The waste paper deinking agent is prepared from the following ingredients by a certain weight ratio: carboxymethyl modified fatty-acid polyoxyethylene ether, fatty-acid polyoxyethylene ether and A-107. A deinking method using the deinking agent comprises the steps of adding NaOH, Na2SiO3, EDTA (Ethylene Diamine Tetraacetic Acid), MgSO4 and H2O2 into wastepaper pulp, cracking, adding the deinking agent, aging, thinning, carrying out flotation separation and baking. According to the deinking agent disclosed by the invention, the used synthesized organic-acid polyoxyethylene block ester product is an ether-ester type nonionic surfactant, so that the deinking agent has the advantages of strong oil-and-fat solubilization property, easiness in biodegradation, environment-friendliness and the like.

Description

technical field [0001] The invention relates to the technical field of waste paper deinking, in particular to a waste paper deinking agent with excellent performance and a deinking method using the same. Background technique [0002] The recycling of waste paper can alleviate the relative shortage of raw materials and energy in the paper industry. According to relevant international data, every 1 ton of high-grade cultural paper produced with waste paper can save 100 tons of clean water, 600 kilowatt-hours of electricity, and 4-5m 3 Wood, 1.2t of coal, 300kg of chemical raw materials, 3m less 3 Solid waste, 60 lbs of industrial waste. In order to save resources and energy, reduce deforestation, and reduce pollution load, the recycling of waste paper has attracted more and more attention. The key to waste paper utilization is waste paper deinking technology. Carbon black, pigments and some filler particles in the ink adhere to the paper fibers through printing. Deinking i...

Claims

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Application Information

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IPC IPC(8): C09D9/04D21C5/02
CPCC09D9/04D21C5/025D21C5/027Y02W30/64
Inventor 曹晓瑶
Owner JIANGMEN POLYTECHNIC
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