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Anti-caking agent of anhydrous sodium sulfate, and preparation method thereof

An anti-caking agent, the technology of Yuanming powder, applied in chemical instruments and methods, alkali metal sulfite/sulfate to prevent moisture absorption, alkali metal sulfite/sulfite and other directions, can solve problems such as affecting quality , to achieve the effect of low cost, convenient use, and conducive to popularization and use

Inactive Publication Date: 2017-05-31
HUNAN HENGYANG XINLI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the current national standards do not make clear regulations on the degree of agglomeration and size of sodium sulfate products, in actual production, the problem of agglomeration of sodium sulfate will bring a lot of inconvenience to users, and even affect future production. The quality of other products produced by it as raw materials, now users have attached great importance to this issue

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An anti-caking agent for sodium sulfate, comprising the following components in percentage by weight: inorganic powder 75%, modifier 25%; described inorganic powder is potassium ferrocyanide, sodium aluminosilicate and silicon dioxide The mixture; the modifier is a mixture of the amine salt of alkylbenzenesulfonic acid and the amine salt of phosphoric acid ester. In the inorganic powder, the mass ratio of potassium ferrocyanide, sodium aluminosilicate and silicon dioxide is 1:1.5:1.3, the mass ratio of the amine salt of alkylbenzenesulfonic acid and the amine salt of phosphoric acid ester is 1.3:1.

[0025] A preparation method of an anti-caking agent for sodium glutamate, comprising the following steps:

[0026] (1) Grinding: Grinding the inorganic powder to 500 mesh;

[0027] (2) Modification: add the ground inorganic powder and modifier into the powder modifier for modification treatment, control the temperature at 70°C, stir for 20 minutes, and cool after modificat...

Embodiment 2

[0030] An anti-caking agent for sodium sulfate, comprising the following components in percentage by weight: 95% of inorganic powder, 5% of modifier; described inorganic powder is potassium ferrocyanide, sodium aluminosilicate and dioxide A mixture of silicon; the modifier is a mixture of the amine salt of alkylbenzenesulfonic acid and the amine salt of phosphoric acid ester, in the inorganic powder, the mass ratio of potassium ferrocyanide, sodium aluminosilicate and silicon dioxide 1:1.5:1.3, the mass ratio of the amine salt of alkylbenzenesulfonic acid and the amine salt of phosphoric acid ester is 1.3:1.

[0031] A preparation method of an anti-caking agent for sodium glutamate, comprising the following steps:

[0032] (1) Grinding: Grinding the inorganic powder to 600 mesh;

[0033] (2) Modification: add the ground inorganic powder and modifier into the powder modifier for modification treatment, control the temperature at 80°C, stir for 30 minutes, and cool after modifi...

Embodiment 3

[0036] An anti-caking agent for sodium sulfate, comprising the following components in percentage by weight: 85% of inorganic powder, 15% of modifier; described inorganic powder is potassium ferrocyanide, sodium aluminosilicate and dioxide A mixture of silicon; the modifier is a mixture of the amine salt of alkylbenzenesulfonic acid and the amine salt of phosphoric acid ester, in the inorganic powder, the mass ratio of potassium ferrocyanide, sodium aluminosilicate and silicon dioxide 1:1.5:1.3, the mass ratio of the amine salt of alkylbenzenesulfonic acid and the amine salt of phosphoric acid ester is 1.3:1.

[0037] A preparation method of an anti-caking agent for sodium glutamate, comprising the following steps:

[0038] (1) Grinding: Grinding the inorganic powder to 550 mesh;

[0039] (2) Modification: Add the ground inorganic powder and modifier into the powder modifier for modification treatment, control the temperature at 75°C, stir for 25 minutes, and cool after modif...

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PUM

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Abstract

The invention relates to an anti-caking agent of anhydrous sodium sulfate, and a preparation method thereof. The anti-caking agent of the anhydrous sodium sulfate comprises the following components in percentage by weight: 75 to 95 percent of inorganic powder and 5 to 25 percent of a modifying agent, wherein the inorganic powder is a mixture of potassium ferrocyanide, sodium silicoaluminate and silicon dioxide; the modifying agent is a mixture of amine salt of alkyl benzene sulfonate and amine salt of phosphate. The anti-caking agent of the anhydrous sodium sulfate is simple in formula and long in anti-caking time, and avoids pollution.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and specifically refers to an anti-caking agent for sodium sulfate and a preparation method thereof. Background technique [0002] The chemical name of sodium sulfate is anhydrous sodium sulfate. Anhydrous sodium sulfate does not exist in theory, because the most stable state of sodium sulfate is the Na2S04·10H20 crystal state formed after absorbing 10 water molecules. This will cause the finished sodium sulfate after drying to absorb moisture from the air, and the outer layer of sodium sulfate in the product packaging bag will dissolve due to the absorption of moisture in the air, forming a supersaturated solution film on the surface. When the temperature is lowered, the solution recrystallizes to form new fine grains of sodium sulfate. The hydrated negative ions formed by the hydrogen bonds between water molecules and sulfate ions combine with each other, and the product structure of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01D5/00
CPCC01D5/002
Inventor 刘建
Owner HUNAN HENGYANG XINLI CHEM
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