Preparation method and preparation device for high-purity gallium oxide
A preparation device and gallium oxide technology, applied in chemical instruments and methods, inorganic chemistry, gallium/indium/thallium compounds, etc., can solve the problems of long process flow, complex process, unfavorable preparation of gallium oxide, etc., to improve reaction efficiency, Agitate for full effect
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[0030] Please refer to figure 1 , the present embodiment provides a preparation method of high-purity gallium oxide, comprising the following steps:
[0031] Take metal gallium of 4N purity and mix it with deionized water, the mass ratio of gallium to water is 1:2-1:8;
[0032] Put the mixture of gallium and water into a high-pressure reaction vessel, keep stirring at a temperature of 150-250°C, and perform a hydrothermal reaction for 1-1.5 hours to generate a mixture of gallium oxyhydroxide and gallium oxide;
[0033] The mixture is filtered, and the filtered solid is dried; the filtrate is mixed with deionized water and used as a raw material;
[0034] The solid mixture is calcined at 700-800°C for 1-2h, and the gallium oxyhydroxide decomposes to form gallium oxide.
[0035] The 4N purity described in this application is the representation method of the purity of the equivalent reagent, that is, the purity of 99.99%.
[0036] When metal gallium and high-temperature water ...
Embodiment 1
[0043] Take 4N pure gallium metal and mix it with deionized water, the mass ratio of gallium to water is 1:2;
[0044] Put the mixture of gallium and water into a high-pressure reaction vessel, continuously stir at 150°C, and perform a hydrothermal reaction for 1.5 hours to generate a mixture of gallium oxyhydroxide and gallium oxide;
[0045] The mixture is filtered, and the filtered solid is dried; the filtrate is mixed with deionized water and used as a raw material;
[0046] The solid mixture was calcined at 700°C for 2 hours, and gallium oxyhydroxide was decomposed to form gallium oxide.
Embodiment 2
[0048] Take metal gallium with 4N purity and mix it with deionized water, the mass ratio of gallium to water is 1:4;
[0049] Put the mixture of gallium and water into a high-pressure reaction vessel, continuously stir at 180°C, and perform a hydrothermal reaction for 1.4 hours to generate a mixture of gallium oxyhydroxide and gallium oxide;
[0050] The mixture is filtered, and the filtered solid is dried; the filtrate is mixed with deionized water and used as a raw material;
[0051] The solid mixture was calcined at 730°C for 1.8h, and gallium oxyhydroxide was decomposed to form gallium oxide.
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Application Information
- IPC
- C01G15/00
- CPC
- C01G15/00; C01P2006/80
- Inventors
- 南长斌; 彭寿