Method for removing metal zinc from high-concentration gallium raw material

A metal zinc, high-concentration technology, applied in the field of metal zinc removal, can solve problems such as being unsuitable for large-scale industrial applications, and achieve the effects of low industrial operation cost, cost reduction, and increased added value

Inactive Publication Date: 2017-03-29
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, using this method for zinc removal of gallium metal raw materials is not suitable for large-scale industrial applications

Method used

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  • Method for removing metal zinc from high-concentration gallium raw material

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Experimental program
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Effect test

Embodiment 1

[0036] The operation process of this embodiment is carried out in a nitrogen atmosphere. 20.37 grams of gallium raw material (zinc content is 17339.7 mg / kg, gallium content is 98.266 mass %, Chalco Shandong Branch) and 50 milliliters of 0.277 mol / liter hydrochloric acid solution After mixing in an ultrasonic oscillator, shake at 45° C. for 2 hours to obtain a mixed phase containing metal fluid and water.

[0037] Let the mixed phase containing metal fluid and water stand, separate the metal fluid phase and the water phase, put the metal fluid phase into a vacuum oven at 50°C and dry for 2 hours to obtain the gallium raw material product S1, and the product yield is 99.46% by mass .

[0038] As shown in Table 1, the zinc content of the gallium raw material product S1 is 8215.3 mg / kg.

Embodiment 2-18

[0040] The operation steps of Examples 2-18 are the same as those of Example 1, and gallium raw material products S2-S18 are obtained. The specific data and results are shown in Table 1.

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Abstract

The invention discloses a method for removing metal zinc from a high-concentration gallium raw material. The method comprises the steps that the gallium raw material and an acid water solution are mixed and subjected to dezincification reaction, and a mixed phase containing metal fluid and water is obtained; the mixed phase is separated to obtain a metal fluid phase and a water phase; and then the obtained metal fluid phase is dried, and a gallium product with the metal zinc removed is obtained, wherein the temperature of the dezincification reaction is 30-80 DEG C, the time of the dezincification reaction is 0.5-5 h, and the concentration of hydrogen ions in the acid water solution is 0.2-5 mol / l. The method can separate and remove metal zinc impurities from the high-concentration gallium raw material to obtain the high-concentration gallium product and is low in cost and easy to operate.

Description

technical field [0001] The invention relates to a method for removing metallic zinc from high-concentration gallium raw materials. Background technique [0002] At present, the removal method of impurity metals in high-purity gallium metal raw materials is mainly carried out by electrolytic process. In recent years, a distributed crystallization method has been developed to further improve the purity of gallium metal raw materials. Due to the low energy consumption of the crystallization impurity removal method, it can effectively remove impurity elements such as copper, nickel and iron, so as to achieve the purpose of purification. Therefore, the crystallization purification method of higher concentration gallium metal raw materials is gradually combined with the electrolysis method to obtain high-purity metal gallium metal raw materials . [0003] The preparation of high-purity gallium metal generally uses the method of combining electrolysis and crystallization. Electro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B58/00
Inventor 李国涛赵兴雷马瑞
Owner CHNA ENERGY INVESTMENT CORP LTD
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