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High-viscosity granular bentonite and preparation method thereof

A bentonite and high-viscosity technology, applied in the field of materials, can solve the problems of small specific surface area, poor adsorption force, and low viscosity, and achieve the effect of large specific surface area, high viscosity, and high adsorption

Active Publication Date: 2015-04-15
北票市盛阳膨润土加工厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of high-viscosity granular bentonite, aiming to solve the problems of low viscosity, small specific surface area and relatively poor adsorption force of existing high-viscosity granular bentonite

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for preparing high-viscosity granular bentonite, the steps of which are: select white bentonite to dry or sun-dry, add 0.03 parts of sodium carbonate to each part of white bentonite by weight, put it into a Raymond machine and pulverize it into 210 mesh Soil powder, then add 0.04 parts of liquid sodium silicate, add 0.3 parts of diatomaceous earth, add 0.25 parts of water, stir evenly, press it into a cake with an extrusion counter-kneading machine, and dry it in a dryer to make the water quality The percentage content is less than or equal to 10%, and then sieved, and the particles of 0.8mm-4mm can be packed. The high-viscosity granular bentonite prepared by this method has a viscosity of 0.7 Pa s and a specific surface area of ​​10 m 2 / g, water absorption 320%.

Embodiment 2

[0023] A method for preparing high-viscosity granular bentonite, the steps of which are: select white bentonite to dry or sun-dry, add 0.03 parts of sodium carbonate to each part of white bentonite by weight, put it into a Raymond machine and pulverize it into 210 mesh Soil powder, then add 0.04 parts of liquid sodium silicate, add 0.2 parts of diatomaceous earth, add 0.25 parts of water, stir evenly, press it into a cake with an extrusion counter-kneading machine, and dry it in a dryer to make the water quality The percentage content is less than or equal to 10%, and then sieved, and the particles of 0.8mm-4mm can be packed. The high-viscosity granular bentonite prepared by this method has a viscosity of 0.7 Pa s and a specific surface area of ​​9.5 m 2 / g, water absorption 360%.

Embodiment 3

[0025] A method for preparing high-viscosity granular bentonite, the steps of which are: select white bentonite to dry or sun-dry, add 0.03 parts of sodium carbonate to each part of white bentonite by weight, put it into a Raymond machine and pulverize it into 210 mesh Soil powder, then add 0.04 parts of liquid sodium silicate, add 0.4 parts of diatomaceous earth, add 0.25 parts of water, stir evenly, press it into a cake with an extrusion counter-kneading machine, and dry it in a dryer to make the water quality The percentage content is less than or equal to 10%, and then sieved, and the particles of 0.8mm-4mm can be packed. The high-viscosity granular bentonite prepared by this method has a viscosity of 0.7 Pa s and a specific surface area of ​​10.5 m 2 / g, water absorption 380%.

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Abstract

The invention provides high-viscosity granular bentonite and a preparation method thereof, belonging to the field of materials. The preparation method of the high-viscosity granular bentonite comprises the steps of drying or airing white bentonite; adding 0.02-0.05 part of sodium carbonate into each part of white bentonite according to the weight part; crushing the white bentonite into 210-325-mesh bentonite powder; then, adding 0.03-0.06 part of liquid sodium silicate, 0.2-0.4 part of diatomite and 0.2-0.3 part of water according to the weight part, uniformly stirring all the components, pressing the mixture to form a cake, and drying to enable the mass percentage of the water to be smaller than or equal to 10%; then, sieving; packing particles with the particle sizes of 0.8-4mm. The invention also provides the high-viscosity granular bentonite prepared according to the method. The high-viscosity granular bentonite prepared by using the method provided by the invention is higher in viscosity, larger in specific surface area and better in adsorption capacity.

Description

technical field [0001] The invention relates to the field of materials, in particular to a high-viscosity granular bentonite and a preparation method thereof. Background technique [0002] Granular bentonite has good adsorption properties and is widely used in construction and other fields. [0003] The patent with the publication number CN1382628A discloses a preparation method of granular bentonite. The steps are: select white bentonite to dry or sun-dry, add 0.02-0.05 parts of sodium carbonate to each part of white bentonite by weight, and put it into a Raymond machine Grinding into 100-200 mesh soil powder, then adding 0.03-0.06 parts of liquid sodium silicate, adding 0.3-0.6 parts of water, stirring evenly, pressing it into a cake with an extrusion counter-kneading machine, and drying it in a dryer , so that the mass percentage of water is less than or equal to 10%, and then sieve, and pack the particles of 0.8mm-4mm. The granular bentonite prepared by this method has...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/40
Inventor 张兴华
Owner 北票市盛阳膨润土加工厂