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Method for preparing superfine natrium bentonite grout

A technology of sodium-based bentonite and bentonite, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of unsatisfactory actual effect, large agglomerated particles of bentonite, insufficient sodiumization and organicization, etc.

Inactive Publication Date: 2006-10-11
浙江安吉县宇宏粘土有限公司 +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The Chinese patent No. 200410004707.6, a new type of nano-bentonite and its preparation method, provides a technology for preparing ultra-fine organic bentonite. This technology is ideal in theory, but the actual effect is not ideal. The reason is the agglomeration of bentonite The particles are still relatively large, and sodiumization and organicization are not sufficient. The so-called nanoscale is only for the layer thickness in its layered structure. In fact, it has not completely peeled off to reach the nanoscale of bentonite particles. Therefore, how to make bentonite It is a very critical technology to fully disperse in the process of organicization to ensure sufficient modification

Method used

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  • Method for preparing superfine natrium bentonite grout
  • Method for preparing superfine natrium bentonite grout
  • Method for preparing superfine natrium bentonite grout

Examples

Experimental program
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Effect test

Embodiment 1

[0022] In a laboratory ball mill, add 20g of sodium bentonite with a montmorillonite content of 92%, add 300ml of water, and stir for 20 minutes to fully wet and disperse the sodium bentonite to form a suspension. Add 240ml of 0.5mm diameter oxidation Zirconium spherical beads were ball-milled for 0.5 hour at a speed of 400 rpm, and the upper layer of slurry was taken to obtain ultrafine sodium-based bentonite slurry.

Embodiment 2

[0024] In a laboratory ball mill, add 20 g of calcium-based bentonite with a montmorillonite content of 92%, add 500 ml of water, and stir for 20 minutes to fully wet and disperse the calcium-based bentonite to form a suspension, add 0.8 g of solid sodium carbonate, and stir for 60 Minutes to completely dissolve the sodium carbonate, add 10mm diameter glass spherical beads with a volume of 300ml, ball mill for 10 hours at a speed of 300 rpm, and take the upper layer slurry to obtain ultrafine sodium bentonite slurry.

Embodiment 3

[0026] In the laboratory ball mill, adding montmorillonite content is 95% sodium bentonite water suspension (solid content is 4%, its particle size distribution is as follows: Figure 8 ) 500ml, stirred for 10 minutes, added 5mm diameter zirconia spherical beads with a volume of 200ml, ball milled for 5 hours at 100 rpm with a rotating speed, and got the superfine sodium-based bentonite slurry by taking the upper layer slurry.

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Abstract

Disclosed is a method for preparing superfine natrium bentonite grout, which mainly comprises the following steps: (1) charging 1-50 parts by alta-mud weight of water into sodium bentonite or calcium bentonite containing montmorillonite higher than 92%, fully stirring and moistening, obtaining suspending liquid, (2) charging 0-0.1 part of sodium agent into the suspending liquid, stirring 10-60 minutes, (3) ball grinding the suspending liquid.

Description

technical field [0001] The invention relates to the deep processing technology of bentonite, in particular to a preparation method of novel superfine sodium-based bentonite slurry. Background technique [0002] Organic bentonite is a new field of fine chemicals developed in recent years. It is widely used and is an indispensable additive in paint, coating, petroleum, cosmetics and other industries. Used as an anti-sedimentation aid in paints to prevent pigments from sinking to the bottom and agglomerating; used in emulsions as a flow rate control agent; used in solvent-based inks as a thickening aid to adjust the viscosity and consistency of inks , to prevent ink from spreading and improve thixotropy; used in oil drilling, it can be used as an oil-based mud additive to increase mud consistency, mud dispersibility and suspension; at the same time, it can also be used as a leveling agent and fabric softener for textiles In industry; in recent years, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/38
Inventor 盛卫坚贾成林高建荣贾建洪韩亮陈志珏
Owner 浙江安吉县宇宏粘土有限公司
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