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Polystyrene-maleic anhydride derivative water-coal-slurry additive and preparation method thereof

A technology of maleic anhydride and polystyrene, used in the field of coal-water slurry additives and their preparation, can solve the problems of reduced Zeta potential, reduced stability, and weakened coal particle repulsion, and reduced apparent viscosity and shear viscosity. , the effect of improving fluidity and reducing coal-water interfacial tension

Inactive Publication Date: 2012-06-20
JIANGXI HEGU NANO MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the cationic charge introduced after the action of coal particles and zwitterionic additives in the coal water slurry leads to a significant decrease in Zeta potential (the potential difference between the inside and outside of the electron cloud), the repulsion between coal particles is weakened, and the system shows a tendency to coagulate, so the stability is somewhat reduce

Method used

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  • Polystyrene-maleic anhydride derivative water-coal-slurry additive and preparation method thereof
  • Polystyrene-maleic anhydride derivative water-coal-slurry additive and preparation method thereof
  • Polystyrene-maleic anhydride derivative water-coal-slurry additive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Take 60 grams of polystyrene-maleic anhydride, dissolve it in 300ml of organic solvent, stir in an oil bath at 40-60°C at a speed of 250-300 rpm, and keep it warm for 20-30 minutes;

[0038] Take 30-90 grams of aminonaphthalenesulfonic acid, dissolve it in 1000ml of alkali solution with a mass fraction of 1.5-3%, and slowly add it dropwise with a dropping funnel, and control the dropping speed so that it will be dripped in 15-30 minutes. React for 6-18 hours under the conditions of stirring at a temperature of 40-60° C. in a bath at a speed of 250-300 rpm.

Embodiment 2

[0040] Take 60 grams of polystyrene-maleic anhydride, dissolve it in 300ml of acetone, stir it at a speed of 300 rpm in an oil bath at 50°C, and keep it warm for 20 minutes;

[0041]Get the 5-amino-1-naphthalenesulfonic acid of 60 grams, be dissolved in 1000ml mass fraction and be in the sodium hydroxide solution of 2.5%, slowly add dropwise with dropping funnel, control drop rate and make it drip in 25 minutes, in The reaction was carried out for 8 hours in an oil bath at 50° C. and stirring at a speed of 300 rpm.

Embodiment 3

[0043] Take 60 grams of polystyrene-maleic anhydride, dissolve it in 300ml N,N-dimethylformamide, stir at a speed of 280 rpm in an oil bath at 50°C, and keep it warm for 25 minutes;

[0044] Get the 4-amino-1-naphthalenesulfonic acid of 30 grams, be dissolved in 1000ml mass fraction and be in the sodium hydroxide solution of 2%, slowly add dropwise with dropping funnel, control drop rate and make it drip in 20 minutes, in The reaction was carried out for 6 hours in an oil bath at 50° C. and stirring at a speed of 280 rpm.

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Abstract

The invention discloses a polystyrene-maleic anhydride derivative water-coal-slurry additive and a preparation method thereof. The preparation method comprises the following steps of: dissolving 60 grams of polystyrene-maleic anhydride into 300ml of organic solvent, stirring in an oil bath at the temperature of 40-60 DEG C at the speed of 250-300 revolutions per minute, and preserving heat for 20-30 minutes; and dissolving 30-90 grams of naphthylamine sulfonic acid into 1,000ml of 1.5-3 percent by mass of aqueous alkali, slowly dropping with a dropping funnel, controlling the dropping speed under the condition that dropping is competed within 15-30 minutes, and reacting in an oil path at the temperature of 40-60 DEG C at the speed of 250-300 revolutions per minute under a stirring condition for 6-18 hours. The polystyrene-maleic anhydride derivative water-coal-slurry additive is an excellent water-coal-slurry additive, has a controllable chemical structure, can contribute to remarkably reducing the coal-water interface tension, and is an efficient water-coal-slurry additive with a large coal range and a small using amount.

Description

technical field [0001] The invention relates to a coal-water slurry additive and a preparation method thereof, in particular to a polystyrene-maleic anhydride derivative coal-water slurry additive and a preparation method thereof. Background technique [0002] The advent of coal water slurry originated from the world oil energy crisis in the 1970s. At that time, after the great economic recession caused by the oil energy crisis, the whole world clearly realized that oil and natural gas, as clean energy, were not inexhaustible. my country's mineral energy is dominated by coal, and abundant coal is still a long-term reliable main energy source. In 2010, coal accounted for about 60% of my country's primary energy consumption structure. Vigorously developing clean coal technology and efficiently and cleanly utilizing my country's coal resources are of extremely important strategic significance for promoting the coordinated development of energy and the environment and meeting ...

Claims

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Application Information

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IPC IPC(8): C10L1/24C08F222/08C08F8/36C10L1/32
Inventor 骆明香洪玲玲
Owner JIANGXI HEGU NANO MATERIAL TECH
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