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Solid powder suspension slurry

A technology of solid powder and slurry, applied in the direction of dissolution, chemical instruments and methods, mixing methods, etc., can solve problems such as pollution, health hazards of operators, and normal operation of equipment in the work area, and achieve convenience in use and reduction of dust pollution. Effect

Active Publication Date: 2008-04-23
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of industrial production, a large amount of solid powder raw materials are often used. Because of their small particles, light weight, and easy to fly, they cause dust pollution during use, which is a great hazard to the health of operators (such as incurable silicosis), and It is also prone to losses in material measurement, which also affects the normal operation of equipment in the work area (especially electronic instruments)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] 1750 grams of pseudoboehmite powder (industrial grade, aluminum hydroxide monohydrate, Qilu Catalyst Factory, containing 63% by weight of alumina) and 1000 grams of vinyl alcohol solution (containing 30 grams of vinyl alcohol) were stirred and mixed at 16°C. Powder particle size d 90 = 50 microns, slurry solids 64% by weight (vinyl alcohol concentration = 1.1% by weight), viscosity = 150 mpoise, sedimentation (100 hours) = 0.5% by weight.

example 2

[0020] 2333 grams of kaolin powder (industrial grade, mainly containing 45% by weight of alumina and 52% by weight of silicon oxide, accompanied by a small amount of sodium, magnesium, phosphorus, potassium, calcium, titanium, chromium, iron, nickel, zinc, zirconium, palladium , strontium and other oxides, China Kaolin Company) and a mixed solution of 1000 grams of acrylic acid and glycerin (containing 90 grams of acrylic acid and 60 grams of glycerin) were stirred and mixed at 30°C. Powder particle size d 90 = 10 microns, slurry solids 70% by weight (total concentration of acrylic acid and glycerol = 4.5% by weight), viscosity = 130 mpoise, sedimentation (100 hours) = 0% by weight.

example 3

[0022] 800 grams of molecular sieve powder (Y type, industrial grade, silica-alumina mixture, Qilu Catalyst Factory) and 1000 grams of acrylic acid solution (containing 40 grams of acrylic acid) were stirred and mixed at 24°C. Powder particle size d 90 = 50 microns, slurry solids 44% by weight (acrylic acid concentration = 2.2% by weight), viscosity = 80 mPoise, sedimentation (100 hours) = 0.5% by weight.

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PUM

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Abstract

The invention relates to a solid powder suspension slurry. According to that the total weight of slurry is 100% it includes: (1) metal oxide or hydroxide powder, content is 20-90 wt%, optimum is 30-80%; (2) dispersing agent formed from water-soluble compound containing carboxylic group or hydroxyl group, content is 0.5-8 wt%, optimum is 1-5 wt%; (3) water, the rest. Its solid content can be up to 90 wt%, its viscosity is 20-200 millipoises at normal temperature, and its setlling rate for 100 hr. only is 0-2 wt%.

Description

technical field [0001] The present invention relates to suspension slurries containing inorganic powders. Background technique [0002] In the process of industrial production, a large amount of solid powder raw materials are often used. Because of their small particles, light weight, and easy to fly, they cause dust pollution during use, which is a great hazard to the health of operators (such as incurable silicosis), and Losses are also prone to occur in material measurement, which also affects the normal work of equipment in the work area (especially electronic instruments). Therefore, it is hoped that dust pollution can be reduced or avoided during the use of solid powder raw materials (such as transportation) from the perspective of safe production and environmental protection. [0003] The present invention proposes in view of this situation, especially in industrial catalyst production (as petroleum refining and processing) a large amount of use of fine powder raw ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F3/12
Inventor 贺振富邵潜李阳景振华龙军段启伟田辉平沈宁元
Owner CHINA PETROLEUM & CHEM CORP
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