Study on Purification of Hafnium by Iodination-Electron Beam Smelting AITranslate
Abstract AITranslate
The purification process and mechanism of hafnium metal by iodination-electron beam smelting were studied by thermodynamic analysis.The results show that when hafnium is purified by iodization, Zr and Ti cannot be separated because the binding ability of Zr, Ti and Hf to iodine is very close.When hafnium is purified by electron beam smelting, the vapor pressure of W,Nb, Zr and Ti is lower than or close to that of Hf, which makes them impossible to separate.The decomposition pressure of HfN near the melting point of Hf is very low, which is not easy to decompose and cannot be separated.In general, after metal hafnium iodination-electron beam smelting treatment, except for Zr and Ti which cannot be separated, other elements with relatively high content can be effectively separated.The actual production data further proves the correctness of the theoretical analysis of hafnium iodination-electron beam smelting purification mechanism, and Fe, Cr, Al, N,O and Si can be effectively separated from Hf.
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DOI：
Chinese Library Classification Number:TF111[冶金工程—冶金物理化学]
Citation Information:
The purification process and mechanism of hafnium metal by iodination-electron beam smelting were studied by thermodynamic analysis.The results show that when hafnium is purified by iodization, Zr and Ti cannot be separated because the binding ability of Zr, Ti and Hf to iodine is very close.When hafnium is purified by electron beam smelting, the vapor pressure of W,Nb, Zr and Ti is lower than or close to that of Hf, which makes them impossible to separate.The decomposition pressure of HfN near the melting point of Hf is very low, which is not easy to decompose and cannot be separated.In general, after metal hafnium iodination-electron beam smelting treatment, except for Zr and Ti which cannot be separated, other elements with relatively high content can be effectively separated.The actual production data further proves the correctness of the theoretical analysis of hafnium iodination-electron beam smelting purification mechanism, and Fe, Cr, Al, N,O and Si can be effectively separated from Hf.
quote
| GB/T 7714-2015 | [1] GUO Shuan-quan, LEI Dong-ping, YANG Xiao-long, et al. Study on Purification of Hafnium by Iodination-Electron Beam Smelting[J]. Rare Metals and Cemented Carbides, 2022(1): 10-15. |
| MLA | [1] GUO Shuan-quan, et al., "Study on Purification of Hafnium by Iodination-Electron Beam Smelting." Rare Metals and Cemented Carbides, no. 1, 2022, pp. 10-15. |
| APA | [1] GUO Shuan-quan, LEI Dong-ping, YANG Xiao-long, & LIU Xiao-ning. (2022). Study on Purification of Hafnium by Iodination-Electron Beam Smelting. Rare Metals and Cemented Carbides(1), 10-15. |
| IEEE | [1] GUO Shuan-quan, LEI Dong-ping, YANG Xiao-long, and LIU Xiao-ning, "Study on Purification of Hafnium by Iodination-Electron Beam Smelting," Rare Metals and Cemented Carbides, no. 1, pp. 10-15, 2022. keywords: {hafnium;iodination purification;electron beam smelting;impurity element;thermodynamics;effective separation} |