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Solid-phase synthesis method of nano magnesium aluminosilicate for waterborne rheological auxiliary agent

A rheological additive, magnesium aluminum silicate technology, applied in the direction of aluminum silicate, nanotechnology for materials and surface science, silicate, etc., can solve the problems of high production safety risks, complex production processes, and large water consumption Resources and other issues, to achieve the effect of high viscosity, high purity, water saving

Active Publication Date: 2018-10-26
JIANGSU HEMINGS NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the artificial synthesis methods of these foreign companies have many fatal flaws: not only the production process is complicated, the production efficiency is low, but also the washing process needs to consume a lot of water resources, especially the production safety risk is high (because of the high water temperature)

Method used

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  • Solid-phase synthesis method of nano magnesium aluminosilicate for waterborne rheological auxiliary agent

Examples

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Comparison scheme
Effect test

Embodiment 1

[0021] A kind of nano-magnesium aluminum silicate for water-based rheological additives is prepared according to the following steps from the following raw material components in parts by mass:

[0022] (1) First, 5 parts of Ce(NO 3 ) 3 Add to 500 parts of pure water and stir thoroughly, then add 100 parts of water glass (modulus 3.0), then slowly drop in 10 parts of sodium hydroxide solution with a mass fraction of 1%, and control the dropping time to 10 minutes;

[0023] (2) Next, add 1 part of ferric sulfate and 100 parts of aluminum sulfate to 500 parts of pure water and stir thoroughly, then slowly drop in 10 parts of sodium hydroxide solution with a mass fraction of 1%, and control the dropping time to 10 minutes;

[0024] (3) Next, mix the solution of step (1) and step (2) and heat up to 30°C, then add 5 parts of magnesium sulfate and 0.5 parts of zinc nitrate, and continue to keep stirring for 10 minutes; then roast the reaction system at 150°C 1h, finally lowered to...

Embodiment 2

[0026] A kind of nano-magnesium aluminum silicate for water-based rheological additives is prepared according to the following steps from the following raw material components in parts by mass:

[0027] (1) First, 5 copies of Ce 2 (SO 4 ) 3 and 5 Dy(NO 3 ) 3 Add to 500 parts of pure water and stir thoroughly, then add 200 parts of water glass (modulus 3.3), then slowly drop in 30 parts of sodium hydroxide solution with a mass fraction of 5%, and control the dropping time to 30 minutes;

[0028] (2) Next, add 2 parts of ferric nitrate, 3 parts of ferric ammonium sulfate, 100 parts of aluminum nitrate and 100 parts of aluminum sulfate into 500 parts of pure water and stir thoroughly, then slowly drop in 30 parts of 5% hydroxide Sodium solution, control the dropping time to 30min;

[0029](3) Next, mix the solution of step (1) and step (2) and heat up to 50°C, then add 5 parts of magnesium sulfate, 5 parts of magnesium nitrate, 0.5 parts of zinc sulfate, and 1 part of zinc n...

Embodiment 3

[0031] A kind of nano-magnesium aluminum silicate for water-based rheological additives is prepared according to the following steps from the following raw material components in parts by mass:

[0032] (1) First, 3 parts of Ce(NO 3 ) 3 , 3 copies of Dy 2 (SO 4 ) 3 , 3 parts of Sr(NO 3 ) 2 Add to 500 parts of pure water and stir thoroughly, then add 150 parts of water glass (modulus 3.1), then slowly drop in 15 parts of sodium hydroxide solution with a mass fraction of 2%, and control the dropping time to 20 minutes;

[0033] (2) Next, add 1 part of ferric sulfate, 1 part of ferric nitrate, 1 part of ferric ammonium sulfate, 60 parts of aluminum sulfate and 70 parts of aluminum nitrate into 500 parts of pure water and stir thoroughly, then slowly drop in 20 parts of 3% sodium hydroxide solution, the control dripping time is 15min;

[0034] (3) Next, mix the solution of step (1) and step (2) and heat up to 40°C, then add 3 parts of magnesium sulfate, 3 parts of magnesium...

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Abstract

The invention discloses a solid-phase synthesis method of nano magnesium aluminosilicate for a waterborne rheological auxiliary agent. The solid-phase synthesis method is characterized by taking cheapchemical raw materials including sodium silicate, aluminum salt, magnesium salt and the like as starting reaction materials and comprising the following steps: firstly, generating precursor gel underan alkaline condition; then carrying out roasting treatment to prepare the nano magnesium aluminosilicate with excellent thickening performance. The nano magnesium aluminosilicate can be used as thewaterborne rheological auxiliary agent and is widely applied to waterborne system industries including cosmetics, medicines, foods and the like.

Description

technical field [0001] The invention relates to the field of synthesis of smectite group minerals, in particular to a solid-phase synthesis method of nano-magnesium aluminum silicate with high thixotropy, high thickening ability and high viscosity. Background technique [0002] Bentonite is a non-metallic mineral with Montmorillonite as the main mineral component, and the scientific name of Montmorillonite is magnesium aluminum silicate. Although bentonite resources are very rich in nature, due to the large number of associated non-clay minerals (mainly quartz, white feldspar, calcite, etc.), the high-purity montmorillonite concentrate obtained by existing extraction and refining technology is still not suitable. Pure magnesium aluminum silicate, but a mixture of magnesium aluminum silicate and a small amount of impurities. In fact, due to differences in ore-forming geological conditions (for example, during the mine maturation process, different positions of the ore bodi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/26B82Y30/00
Inventor 张天志张天毅
Owner JIANGSU HEMINGS NEW MATERIALS TECH CO LTD
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