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Efficient environmentally friendly coal water slurry additive and application thereof in coal water slurry mixed waste preparation process

An additive, environmentally friendly water technology, applied in the field of coal chemical industry, can solve the problem that the coal water slurry additive cannot be applied to the coal water slurry mixed waste preparation process, etc., to enhance the suspension stability and system compatibility, meet the greenness, and reduce environmental pollution. Effect

Active Publication Date: 2019-12-13
CHANGZHOU ZHONGNAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the existing coal-water slurry additive described in the background technology cannot be applied to the preparation process of coal-water slurry mixed with waste, and to provide a low-cost coal-water slurry additive with abundant raw material sources

Method used

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  • Efficient environmentally friendly coal water slurry additive and application thereof in coal water slurry mixed waste preparation process
  • Efficient environmentally friendly coal water slurry additive and application thereof in coal water slurry mixed waste preparation process

Examples

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Embodiment 1

[0020] A high-efficiency and environment-friendly coal-water slurry additive, which includes components and weight percentages: 20% of sodium gluconate, 20% of starch industrial waste water (based on solid content), 20% of sodium cardanol sulfonate, and sodium naphthalene sulfonate formaldehyde Condensate 20% and sulfonated acetone-formaldehyde polycondensate 20%, starch industrial wastewater is adjusted to neutral or weakly alkaline after the pH value is first compounded with sodium gluconate, and then combined with sodium cardanol sulfonate and naphthalene sulfonic acid Sodium formaldehyde condensate and sulfonated acetone-formaldehyde condensate are compounded to obtain finished additives.

Embodiment 2

[0022] A high-efficiency and environment-friendly coal-water slurry additive, which includes components and weight percentages: 30% of potassium gluconate, 30% of starch industrial wastewater (in terms of solid content), 40% of sodium cardanol sulfonate, and starch industrial wastewater by pH After the value is adjusted to neutral or weakly alkaline, it is compounded with sodium gluconate, and then compounded with sodium cardanol sulfonate to obtain a finished additive.

Embodiment 3

[0024] A high-efficiency and environment-friendly coal-water slurry additive, which includes components and percentages by weight: 20% of sodium gluconate, 20% of starch industrial wastewater (in terms of solid content), 60% of potassium cardanol sulfonate, and starch industrial wastewater by pH After the value is adjusted to neutral or weakly alkaline, it is compounded with sodium gluconate, and then compounded with potassium cardanol sulfonate to obtain a finished additive.

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Abstract

The invention relates to an efficient environmentally friendly coal water slurry additive. The efficient environmentally friendly coal water slurry additive comprises the following components in percentages by weight: 20-50% of gluconate, 20-50% of starch industrial wastewater (based on solid content), 10-60% of cardanol sulfonate, 0-50% of naphthalene sulfonate formaldehyde condensate and 0-50% of sulfonated acetone-formaldehyde condensate. After the pH value of the starch industrial wastewater is adjusted to be neutral or alkalescent, the starch industrial wastewater is compounded with the gluconate, and then is compounded with the cardanol sulfonate and / or the naphthalene sulfonate formaldehyde condensate and / or the sulfonated acetone-formaldehyde condensate to obtain the finished additive. According to the efficient environmentally friendly coal water slurry additive, the gluconate, the starch industrial wastewater, the cardanol sulfonate, the naphthalene sulfonate formaldehyde condensate and the sulfonated acetone-formaldehyde condensate have a compound synergistic effect, and the suspension stability and the system compatibility of a coal-water-admixture system are enhanced;and meanwhile, the raw materials are non-toxic and quite high in biodegradability, environmental pollution can be relieved, and the green and ecological protection requirements can be met.

Description

technical field [0001] The invention relates to the field of coal chemical industry, in particular to a high-efficiency and environment-friendly coal-water slurry additive and its application in the preparation process of coal-water slurry mixed with waste. Background technique [0002] Coal water slurry is made by mixing coal powder with a certain graded fineness, water and coal water slurry additives. It is a slurry coal product with certain stability and fluidity. It is widely used in the synthesis of methanol, ammonia, Olefins, fuel oil, natural gas and other coal chemical industries. Because coal water slurry has significant technical and economic advantages such as high energy efficiency, low pollution, and low cost, it has become one of the key technologies for implementing the clean coal strategy in my country. [0003] The main body of coal is a hydrophobic non-polar hydrocarbon. The function of the coal water slurry additive is to disperse the coal powder in water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32C10L1/182C10L1/24
CPCC10L1/14C10L1/1828C10L1/2437C10L1/326
Inventor 刘光华张洪明孙金忠陆玉峰
Owner CHANGZHOU ZHONGNAN CHEM