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Process for preparing granular pentonite

A production method and technology of bentonite are applied in the production field of granular bentonite, which can solve the problems of many impurities and poor color of bentonite, and achieve the effects of good agglomeration performance, less impurities and low ash content.

Inactive Publication Date: 2002-12-04
张兴华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because bentonite has relatively good water absorption, it is widely used in construction projects, but the color of these bentonites is poor and there are many impurities

Method used

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Embodiment Construction

[0008] The present invention will be further described in detail below in conjunction with specific embodiments.

[0009] A method for producing granular bentonite, the production steps of which are: select white bentonite to dry or dry in the sun, 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 150 mesh soil powder, then add 0.04 parts of sodium silicate liquid, add 0.4 parts of water, stir evenly, press it into a cake with a pair of extrusion rollers, and dry it in a dryer to make the water content ≤ 10%, then sieve, and 0.8 mm-4mm granular packaging is sufficient.

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Abstract

A process for preparing granular bentone includes choosing white bentone, baking or drying in sun, adding sodium carbonate, pulverizing by 100-200 meshes, adding solution of sodium silicate and water, stirring, squeezing, baking and screening. The resultant bentone particles (0.8-4 mm) features high hydroscipicity, strength and caking performance, and high purity.

Description

technical field [0001] The invention relates to a production method of granular bentonite. Background technique [0002] Because bentonite has relatively good water absorption, it is widely used in construction projects, but the color of these bentonites is poor and there are many impurities. Contents of the invention [0003] The object of the present invention is to provide a production method of granular bentonite with simple process and relatively low cost. The granular bentonite produced by the method has strong water absorption, pure white color, good strength and less impurities. [0004] The purpose of the present invention is achieved through the following technical solutions: [0005] A method for producing granular bentonite, the production steps of which are as follows: 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, put it into a Raymond machine and pulverize it into 100 -200 mesh s...

Claims

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Application Information

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IPC IPC(8): C01B33/40
Inventor 张兴华张东华
Owner 张兴华
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