Preparation method for high-dispersibility high-viscosity magnesium aluminum silicate inorganic gel

A technology of magnesium aluminum silicate and inorganic gel, applied in the direction of aluminum silicate, silicate, etc., can solve the impact of production efficiency and production cost of application manufacturers, restrict the application of magnesium aluminum silicate inorganic gel, and the dispersion time of water system Change the length and other issues to achieve the effect of wide applicability, easy implementation and simple steps

Inactive Publication Date: 2018-04-13
安徽国创非金属矿业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the process of processing calcium-based aluminum silicate inorganic gel, the viscosity of calcium-based bentonite is difficult to increase, or the hydration viscosity decreases after drying, which restricts the application of magnesium-aluminum silicate inorganic gel; in addition, magnesium silicate The aluminum inorganic gel has strong hydrophilicity, and the phenomenon of powder clumping will appear in the water dispersion system, resulting in longer dispersion time in the water system, which will affect the production efficiency and production cost of the application manufacturer; therefore, it is necessary to develop a Magnesium Aluminum Silicate Inorganic Gel Material Capable of Rapidly Dispersing in Water Dispersion System

Method used

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  • Preparation method for high-dispersibility high-viscosity magnesium aluminum silicate inorganic gel
  • Preparation method for high-dispersibility high-viscosity magnesium aluminum silicate inorganic gel
  • Preparation method for high-dispersibility high-viscosity magnesium aluminum silicate inorganic gel

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Experimental program
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Effect test

Embodiment 1

[0030] S1, crushing the natural calcium-based bentonite to a particle size of 2mm;

[0031] S2, take 50g of raw materials and add 2% sodium carbonate according to the mass percentage, add water to configure 10% ore slurry, stir and disperse for 45min;

[0032] S3, set the dynamic gravity centrifuge, the separation factor is 2047, and centrifuge the pulp for 6 minutes;

[0033] S4, add 5% attapulgite to the suspension obtained by separation, set the pressure of the high-pressure homogenizer to 180MPa, and perform homogenization and compounding;

[0034] S5. Freeze-dry at -40°C to a solid content of 97% to obtain a finished product.

Embodiment 2

[0036] S1, crushing the natural calcium-based bentonite to a particle size of 2 mm;

[0037] S2. Take 50g of raw materials and add 3% sodium carbonate according to the mass percentage, add water to form a 12% slurry, stir and disperse for 45min;

[0038] S3. Add water to adjust the concentration of the pulp to 8%, set the separation factor to 1590, and centrifuge the pulp for 4 minutes;

[0039] S4, adding 2% sepiolite and 3% attapulgite to the suspension obtained by separation, and setting the pressure at 150MPa for homogenization and compounding;

[0040] S5. Freeze-dry the pulp at -40°C to a solid content of 98% to obtain a finished product.

[0041] Tests show that the magnesium aluminum silicate inorganic gel treated by the present invention has a 1% water dispersion time≦5min, and a 5% water dispersion viscosity≧1500mpa.s after standing still for 24 hours.

[0042] Data comparison:

[0043]

[0044] The comparison gel (magnesium aluminum silicate inorganic gel) in ...

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Abstract

The invention discloses a preparation method for a high-dispersibility high-viscosity magnesium aluminum silicate inorganic gel. The preparation method comprises the following steps: crushing a raw magnesium aluminum silicate material; mixing the raw magnesium aluminum silicate material, a modifier and water according to a certain mass ratio under stirring so as to prepare ore pulp; subjecting theore pulp to separation and purification by using a dynamic separation and purification process in virtue of a centrifugal force field and taking suspension; compounding the suspension with a functional mineral with a certain mass percent to form a multi-component mineral and carrying out high-pressure homogenization and compounding; and drying a homogenization product so as to prepare an inorganic gel product. According to the invention, a compact three-dimensional net structure is formed after compounding of the functional mineral and high-pressure homogenization; and since vacuum freeze-drying and dehydration are carried out, the physical structure and molecular structure of the magnesium aluminum silicate inorganic gel are maintained, excellent rehydration performance is obtained, andhydration dispersion time is greatly reduced. The preparation method is simple in steps and easy to implement. The prepared magnesium aluminum silicate inorganic gel has good practicability and wide applicability.

Description

technical field [0001] The invention relates to a method for preparing an inorganic gel, in particular to a method for preparing a highly dispersible and high-viscosity magnesium aluminum silicate inorganic gel. Background technique [0002] Magnesium aluminum silicate inorganic gel is a one-dimensional nano-material modified from natural bentonite by a special process, which can be dispersed in water to form a thixotropic gel; the system is generally translucent to transparent, and is subjected to shear or other external forces That is to restore a certain degree of liquidity. [0003] Magnesium aluminum silicate inorganic gel is widely used in daily chemical, pharmaceutical, pesticide, industrial and other fields. [0004] At present, the preparation technology of natural bentonite processing inorganic gel is mainly wet pulping, dispersion of viscosity reducer, centrifugal separation and purification, sodium modification and other treatments to obtain products. [0005...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/26
CPCC01B33/26
Inventor 程卫泉王景球于阳辉贺洋
Owner 安徽国创非金属矿业科技有限公司
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