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Preparation method of deinking agent

A technology of deinking agent and preparation steps, which is applied in the field of deinking agent preparation, can solve problems such as poor deinking efficiency, and achieve the effects of improved deinking efficiency, reduced binding force, and improved deinking effect

Inactive Publication Date: 2018-04-13
翟琳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is to provide a preparation method of deinking agent for the disadvantage of poor deinking efficiency of traditional deinking agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022]Mix beef extract and agar in a flask at a mass ratio of 1:5, and add sodium chloride 0.3 times the mass of agar and water 60 times the mass of agar to the flask, at a temperature of 95°C and a rotational speed of 280r / min. After stirring and mixing for 45 minutes, the beef extract agar mixture was obtained, and the pH of the beef extract agar mixture was adjusted to 7.8 with sodium bicarbonate, and then the beef extract agar mixture was frozen at a temperature of 15°C for 30 minutes to obtain a solid medium; The sludge in the second settling tank of the factory and the ink were mixed in the reaction kettle at a mass ratio of 1:5, and incubated at room temperature for 7 days at a constant temperature, and after standing for 6 hours, the upper layer was taken to obtain the mixed solution; the mixed solution and the solid medium were pressed Mix them at a mass ratio of 1:6, and incubate at a constant temperature of 38°C for 5 days, rinse the solid medium with deionized water...

example 2

[0024] Mix the pretreated zeolite and beeswax in a beaker at a mass ratio of 1:12, move the beaker into a digital speed measuring constant temperature magnetic stirrer, and stir and mix for 35 minutes at a temperature of 75°C and a speed of 350r / min, then pour into the beaker Add sodium hydroxide powder 0.6 times the mass of pretreated zeolite and sodium silicate powder 0.3 times the mass of pretreated zeolite, move the beaker into an ultrasonic oscillator, and oscillate ultrasonically for 20 minutes at a frequency of 65 kHz, then freeze the mixture in the beaker Grinding to obtain modified zeolite; mix (N-amidino) dodecyl acrylamide and polyethylene glycol derivatives in a mass ratio of 3:1 in a wide-mouthed flask, and add polyethylene glycol into the wide-necked flask P-dichlorobenzene with 0.32 times the weight of alcohol derivatives and ferrocene with 0.10 times the weight of polyethylene glycol derivatives were stirred and mixed for 55 minutes at a temperature of 45 ° C an...

example 3

[0026] Mix beef extract and agar in a flask at a mass ratio of 1:5, and add sodium chloride 0.3 times the mass of agar and water 60 times the mass of agar to the flask, at a temperature of 95°C and a rotational speed of 280r / min. After stirring and mixing for 45 minutes, the beef extract agar mixture was obtained, and the pH of the beef extract agar mixture was adjusted to 7.8 with sodium bicarbonate, and then the beef extract agar mixture was frozen at a temperature of 15°C for 30 minutes to obtain a solid medium; The sludge in the second settling tank of the factory and the ink were mixed in the reaction kettle at a mass ratio of 1:5, and incubated at room temperature for 7 days at a constant temperature, and after standing for 6 hours, the upper layer was taken to obtain the mixed solution; the mixed solution and the solid medium were pressed Mix them at a mass ratio of 1:6, and incubate at a constant temperature of 38°C for 5 days, rinse the solid medium with deionized wate...

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Abstract

The invention discloses a preparation method of a deinking agent, and belongs to the technical field of paper making. According to the method, 60 to 80 parts of water, 20 to 30 parts of processing agents, 5 to 8 parts of emulsifying agents, 15 to 25 parts of modified zeolite and 8 to 12 parts of sodium bicarbonate are sequentially weighed through being metered in parts by weight; the water and theprocessing agents are mixed into a stirring device; the emulsifying agents are added into the stirring device; stirring and mixing are performed for 35 to 55 min under the conditions of the temperature being 45 to 55 DEG C and the rotating speed being 250 to 320 r / min; blank materials are obtained; the blank materials and the modified zeolite are mixed into a material mixing machine; the sodium bicarbonate is added into the material mixing machine; stirring and mixing are performed for 30 to 50 min under the conditions of the temperature being 40 to 60 DEG C and the rotating speed being 350 to 450 r / min; the deinking agent is obtained. By using the technical scheme, the prepared deinking agent has the characteristic of excellent deinking efficiency.

Description

technical field [0001] The invention discloses a preparation method of a deinking agent and belongs to the technical field of papermaking. Background technique [0002] Due to the increasing shortage of plant resources and the gradual improvement of people's requirements for environmental protection, the recycling of waste paper has attracted the attention of researchers. Waste paper pulping has the advantages of saving virgin fibers, reducing environmental pollution, reducing energy consumption, etc., and has good economic and social benefits. An important technology in the waste paper recycling process is the deinking process, and in the waste paper deinking process, the application of deinking agent is the most critical step. The deinking agent is a multi-functional composite surfactant that can make the ink wet, penetrate and swell, reduce its binding force with the fiber, and make the ink emulsify and disperse from the fiber to prevent it from redepositing on the fiber...

Claims

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Application Information

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IPC IPC(8): C09D9/00C09D9/04
CPCC09D9/00C09D9/04
Inventor 谷友宝肖曦黄浩
Owner 翟琳
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