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Method for preparing gallium sulfate

A technology of gallium sulfate and sulfuric acid, applied in the field of preparation of gallium sulfate, can solve the problems of unguaranteed production quality and purity of gallium sulfate, lack of preparation process, etc., and achieve the effect of resource utilization

Active Publication Date: 2013-08-14
GUIZHOU BRANCH CHINA ALUMINUM IND
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  • Summary
  • Abstract
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Problems solved by technology

There is no relevant report on the method for the industrialized production of gallium sulfate involved, and there is no systematic and detailed technical plan in terms of preparation technology, so that the production quality and purity of gallium sulfate cannot be guaranteed

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0029] (1) Take 50 mL of gallium metal electrolytic waste liquid, vacuum filter to remove impurities, take the filtered clear liquid and neutralize it with inorganic acid to the end, stir continuously during the neutralization process to ensure complete neutralization, and obtain 24 g of gallium hydroxide.

[0030] (2) Washing the neutralized gallium hydroxide with hot water and then filtering, washing the obtained filter cake with hot water and then filtering until the gallium hydroxide is washed clean.

[0031] (3) Take 148mL of sulfuric acid in a certain proportion into a reaction vessel, add gallium hydroxide filter cake, and react on a magnetic stirrer with a set temperature of 70°C.

[0032] (4) After the reaction is complete, the obtained solution is evaporated and concentrated at a temperature of about 70°C for 6 hours to reach a saturated state.

[0033] (5) After cooling the concentrated saturated solution to room temperature, add a certain amount of organic mixt...

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Abstract

The invention discloses a method for preparing gallium sulfate. Through the method provided by the invention, gallium sulfate is prepared from electrolysis waste liquid obtained by gallium metal preparation. The method preparing gallium sulfate is characterized in that electrolysis waste liquid obtained by gallium metal preparation is utilized as a raw material. The method for preparing gallium sulfate can effectively solve the problem that in high-purity gallium production, electrolysis waste liquid cannot be recycled, utilizes a raw material of electrolysis waste liquid obtained by gallium metal preparation in gallium sulfate preparation, and realizes waste liquid resource utilization. Gallium sulfate obtained by the method provided by the invention has high purity of above 99.99%.

Description

technical field [0001] A method for preparing gallium sulfate relates to a method for preparing gallium sulfate from electrolytic waste liquid of gallium metal. Background technique [0002] Gallium is an important supporting material for the development of contemporary information technology. Gallium compounds GaAs, GaP, GaN, etc. are widely used in the electronics industry as basic materials for visible light, infrared and laser diodes, integrated circuits, and solar cells. Inorganic salts of gallium such as gallium nitrate and gallium sulfate, as raw materials for chemistry, materials and medicine, are in increasing demand in new medicine, functional materials, catalysis and other high-tech fields. [0003] As an inorganic salt of gallium, gallium sulfate can be used in high-purity compound preparation reagents, organic reaction catalysts, geological analysis and spectral pure analysis reagents, etc., especially as a catalyst, it has been widely studied and applied. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G15/00
Inventor 刘彩玫管督常晖卞玉倩杨波
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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