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Multi-copolymer composite dispersant for ceramic phenol water coal water slurry and preparation method of multi-copolymer composite dispersant

A technology of composite dispersant and multi-component copolymer, which is applied in the field of environmental protection utilization of ceramic additives, can solve the problems of phenolic water pollution and environmental protection standard application, poor dispersion effect and stability, complex components of phenolic wastewater, etc., to achieve industrial application and stability Good, good pulping effect

Active Publication Date: 2021-10-26
肇庆市欧陶新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These phenolic waters are extremely harmful, and the pollution of phenolic waters has always been a difficult problem restricting their application in environmental protection.
However, the components of phenol-containing wastewater are relatively complex, and the above-mentioned dispersants have poor dispersion effect and stability when preparing phenol-water coal-water slurry

Method used

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  • Multi-copolymer composite dispersant for ceramic phenol water coal water slurry and preparation method of multi-copolymer composite dispersant
  • Multi-copolymer composite dispersant for ceramic phenol water coal water slurry and preparation method of multi-copolymer composite dispersant
  • Multi-copolymer composite dispersant for ceramic phenol water coal water slurry and preparation method of multi-copolymer composite dispersant

Examples

Experimental program
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Effect test

example 1-1

[0035] (1) Add 300 grams of water into a 1000 ml four-neck flask equipped with electric stirring, reflux, temperature monitoring and dropping devices, heat to 60°C, add 60 grams of sodium p-styrenesulfonate, 40 grams of horsepower under stirring Toric anhydride, 70 grams of vinyl polyglycol ether EPEG (molecular weight: 1500), 30 grams of acrylic acid and 1.5 grams of sodium hypophosphite, after heating and stirring to dissolve all, heat up to 70 ° C, and then drip at a rate of 10 drops / min. Add 30 grams of 5 wt % potassium persulfate initiator aqueous solution, during the dropwise addition, the temperature rises gradually after the reaction is initiated, and keep the solution dropwise and reflux in the range of 70-85° C. for reaction.

[0036] (2) After the dropwise addition, in addition, 100 grams of acrylic acid, 132.5 grams of water and 30 grams of 5wt% potassium persulfate initiator aqueous solution were mixed uniformly at room temperature, then added dropwise in the react...

example 1-2

[0040]Get 500 grams of P1, add 200 grams of concentration under stirring and be 50wt% sodium silicate water glass (modulus is 2.0), obtain ceramic phenol-water coal-water slurry composite dispersant F1-2, concentration is 38.6wt%.

example 2-1

[0043] (1) Add 250 grams of water into a 1000 ml four-neck flask equipped with electric stirring, reflux, temperature monitoring and dropping devices, heat to 55°C, add 50 grams of sodium p-styrenesulfonate, 45 grams of Toric anhydride, 30 grams of vinyl polyethylene glycol polypropylene glycol ether EPEGPPG (molecular weight is 1000, PPG=200), 50 grams of acrylic acid and 2.5 grams of potassium hypophosphite, after all dissolving, heat up to 70 ° C, and then add 10 drops / Add 30 grams of 5wt% potassium persulfate initiator aqueous solution dropwise at a speed of 1 min. During the dropwise addition, the temperature rises gradually after the reaction is initiated, and the solution is kept dropwise and refluxed in the range of 70-90° C. for reaction.

[0044] (2) After the dropwise addition, in addition, 125 grams of acrylic acid, 131.5 grams of water and 30 grams of 5wt% potassium persulfate initiator aqueous solution were mixed uniformly at room temperature, then added dropwise...

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Abstract

The invention discloses a multi-copolymer composite dispersant for ceramic phenolic water coal water slurry and a preparation method of the multi-copolymer composite dispersant, wherein the preparation method comprises the following steps: (1) mixing monomer styrene sulfonate, maleic anhydride, acrylic acid, vinyl polyether, water and a phosphorus-containing reducing agent, completely dissolving, dropwise adding a persulfate aqueous solution, and dropwise adding and reacting at the temperature of 70-90 DEG C; (2) then dropwise adding a mixed solution of acrylic acid, water and the persulfate aqueous solution, reacting at the temperature of 90-95 DEG C for 2-1 hour, adding a chain terminator solution, uniformly stirring, and cooling; (3) adjusting the pH value of the solution to 8-10 to obtain a polymer solution with the concentration of 30-45 wt%; and (4) finally adding an inorganic water glass water reducing agent, and enabling the content of the water reducing agent to be 10-40 wt% of the total solid content to obtain the composite dispersant. The composite dispersant significantly improves the dispersibility, fluidity and stability of the ceramic phenol water coal water slurry, and is beneficial to energy conservation and emission reduction in the ceramic industry.

Description

technical field [0001] The invention relates to the field of environmental protection utilization of ceramic additives, in particular to a multi-component copolymer composite dispersant for ceramic phenol-water coal-water slurry and a preparation method thereof. Background technique [0002] Coal water slurry is mixed with coal powder (55%~70%), water (30%~45%) and a small amount of additives, and then vigorously stirred to form a coal-water two-phase slurry for use as fuel. It can be pumped and atomized for combustion, has high combustion efficiency, and its calorific value is about half of that of heavy oil, so it has broad application prospects. The higher the concentration of coal water slurry, the higher the calorific value of coal water slurry, the more favorable for combustion. However, the concentration of coal water slurry is too high, and its viscosity is also high, which is not conducive to the atomization and full combustion of coal water slurry, and is also not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32C10L1/26C10L1/10C08F283/06C08F212/14C08F222/06C08F220/06C08F2/38C08F4/40
CPCC10L1/326C10L1/10C10L1/2675C08F283/065C08F2/38C08F4/40C08F212/30C08F222/06C08F220/06
Inventor 黄月文王斌欧阳天生刘新鸿赵树录年福伟
Owner 肇庆市欧陶新型材料有限公司
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