Preparation method of waste paper deinking agent with excellent performance

An excellent technology for deinking of waste paper, applied in the field of preparation of deinking agent for waste paper, can solve the problems of intolerance to hard water, turbidity and delamination, affecting the natural food chain, etc., and achieve good deinking performance and strong oil solubilization. Effect

Active Publication Date: 2015-06-10
JIANGMEN POLYTECHNIC
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  • 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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  • Preparation method of waste paper deinking agent with excellent performance
  • Preparation method of waste paper deinking agent with excellent performance

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Embodiment 1

[0023] A preparation method of a waste paper deinking agent with excellent performance comprises the following steps: weighing carboxymethyl-modified AEO-9, AEO-9 and A-107, and mixing them uniformly to obtain the finished product. Wherein, the weight ratio of carboxymethyl-modified AEO-9:AEO-9:A-107 is 3:2:1.

[0024] A method for preparing carboxymethyl-modified fatty acid polyoxyethylene ether, a component of waste paper deinking agent, comprising the following steps: putting fatty acid polyoxyethylene ether and chloroacetic acid into a three-necked flask, keeping the reaction temperature at 25°C, and stirring After reacting for 0.5h, add sodium hydroxide in 2 times, continue to stir and react for 1.5h, then heat up to 70°C, stop the reaction until the pH value of the system drops to 6.8, adjust the pH value of the product to 5.8 with dilute sulfuric acid, and heat to At 80°C, the product was separated into two layers, which were separated with a separatory funnel, and the ...

Embodiment 2

[0028] A preparation method of a waste paper deinking agent with excellent performance comprises the following steps: weighing carboxymethyl-modified AEO-9, AEO-9 and A-107, and mixing them uniformly to obtain the finished product. Wherein, the weight ratio of carboxymethyl-modified AEO-9:AEO-9:A-107 is 4.5:2:1.

[0029] A method for preparing carboxymethyl-modified fatty acid polyoxyethylene ether, a component of waste paper deinking agent, comprising the following steps: putting fatty acid polyoxyethylene ether and chloroacetic acid into a three-necked flask, keeping the reaction temperature at 30°C, and stirring After reacting for 1 hour, add sodium hydroxide in 3 times, continue to stir and react for 1 hour, heat up to 80°C, stop the reaction when the pH value of the system drops to 7, adjust the pH value of the product to 6 with dilute sulfuric acid, and heat to 90°C , the product is divided into two layers, separated with a separatory funnel, and the upper layer solution...

Embodiment 3

[0032] A preparation method of a waste paper deinking agent with excellent performance comprises the following steps: weighing carboxymethyl-modified fatty acid polyoxyethylene ether, fatty acid polyoxyethylene ether and A-107, and mixing them uniformly to obtain the finished product. Wherein, the weight ratio of carboxymethyl-modified AEO-9:AEO-9:A-107 is 6:2:1.

[0033] A method for preparing carboxymethyl-modified fatty acid polyoxyethylene ether, a component of waste paper deinking agent, comprising the following steps: putting fatty acid polyoxyethylene ether and chloroacetic acid into a three-necked flask, keeping the reaction temperature at 35°C, and stirring After reacting for 1 hour, add sodium hydroxide in 3 times, continue to stir and react for 1.5 hours, heat up to 90°C, and stop the reaction until the pH value of the system drops to 7.5, adjust the pH value of the product to 6.3 with dilute sulfuric acid, and heat to 100 ℃, the product is divided into two layers, ...

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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 preparation method of the deinking agent disclosed by the invention comprises the step of uniformly mixing carboxymethyl modified fatty-acid polyoxyethylene ether, fatty-acid polyoxyethylene ether and A-107, thereby obtaining the deinking agent. 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 preparation method of a waste paper deinking agent with excellent performance. 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 is to destroy ...

Claims

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Application Information

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IPC IPC(8): C09D9/04C08G65/332C08G65/28
CPCC07C67/08C09D9/04C07C69/28C07C69/58
Inventor 曹晓瑶陈焕明林丽霞
Owner JIANGMEN POLYTECHNIC
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