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Production of gallium chloride

A gallium chloride and preparation process technology, applied in chemical instruments and methods, inorganic chemistry, gallium/indium/thallium compounds, etc., can solve the problems of complex methods, difficult to guarantee the purity of gallium trichloride products, and complicated operation, etc. Simple operation, easy to implement, and ensure the effect of product quality

Inactive Publication Date: 2006-05-31
GUIZHOU BRANCH CHINA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method is more complicated and the operation is more cumbersome
The product purity of the gallium trichloride prepared by above-mentioned two kinds of methods is not easy to guarantee

Method used

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  • Production of gallium chloride
  • Production of gallium chloride

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Experimental program
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Effect test

Embodiment 1

[0021] Use high-purity water and high-purity reagents for raw material preparation, and control the appropriate hydrogen chloride preparation process and chlorination conditions for the reaction of metal gallium and hydrogen chloride: the hydrogen chloride gas obtained by heating hydrochloric acid (about 85 ° C) is dried by calcium chloride and concentrated sulfuric acid. process, put it into a chlorination reactor with metal gallium, maintain the reaction temperature at 200°C, and then produce colorless needle-shaped gallium trichloride. Using ICP-MS analysis and detection technology, the product quality can reach 99.999%.

Embodiment 2

[0023] Use high-purity water and high-purity reagents for raw material preparation, and control the appropriate hydrogen chloride preparation process and chlorination conditions for the reaction of metal gallium and hydrogen chloride: the hydrogen chloride gas obtained by heating hydrochloric acid (about 90 ° C) is dried by calcium chloride and concentrated sulfuric acid. process, put it into a chlorination reactor with metal gallium, keep the reaction temperature at 280°C, and then produce colorless needle-shaped gallium trichloride. Using ICP-MS analysis and detection technology, the product quality can reach 99.999%.

Embodiment 3

[0025] Use high-purity water and high-purity reagents for raw material preparation, and control the appropriate hydrogen chloride preparation process and chlorination conditions for the reaction of metal gallium and hydrogen chloride: the hydrogen chloride gas obtained by heating hydrochloric acid (about 95 ° C) is dried by calcium chloride and concentrated sulfuric acid. process, put it into a chlorination reactor with metal gallium, and maintain the reaction temperature at 240°C to generate colorless needle-shaped gallium trichloride. Using ICP-MS analysis and detection technology, the product quality can reach 99.999%.

[0026] figure 2 1 is the washing bottle; 2 is the hydrochloric acid heater; 3 is the drying bottle; 4 is H 2 SO 4 5 is a buffer bottle; 6 is an electric heating jacket; 7 is a quartz crucible; 8 is a volatilizer; 9 is a quartz cover; 10 is an infrared lamp; 11 is a condensation crystallization bottle; 12 is a washing bottle;

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Abstract

Production of gallium chloride is carried out by preparing hydrogen chloride gas, chlorination reacting, condensation crystallizing, packing and storing. It achieves sealed reaction environment, simple operation, better quality and high purity of product.

Description

technical field [0001] The invention relates to a preparation method of gallium chloride. Background technique [0002] There are few data reports on the preparation process of gallium chloride. "Handbook of Inorganic Compound Synthesis" (edited by the Chemical Society of Japan, translated by An Jiaju and Chen Zhichuan, Chemical Industry Press, 1986), discloses two preparation methods of gallium chloride. Method 1: Make hydrogen chloride fully dry through a washing bottle filled with concentrated sulfuric acid and a drying tube filled with calcium chloride. High-purity metal gallium can be prepared by electrolysis of trivalent gallium salt alkaline aqueous solution. Put 1-2 g of gallium prepared by electrolysis into a porcelain boat, and put the porcelain boat into a borosilicate glass tube with a diameter of 2 cm and a length of 50 cm. Cover a part of the borosilicate glass tube with a small electric furnace, and adjust the temperature with a rheostat. While vigorously ...

Claims

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Application Information

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IPC IPC(8): C01G15/00
Inventor 王熙慧吕子剑吴钢张学英黄健龚斌薛祎姝王钧全玉吕元龙张瑜赵镁翼杨群太陈东姜电华
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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