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阐述了金属铪常用的几种制备工艺,如镁还原法、铝热还原法、熔盐电解精炼法、直接电脱氧法、碘化精炼以及电子束熔炼等方法。概述了各方法的原理和研究进展,并指出了各种工艺的优势和不足。
Several commonly used preparation methods of metal hafnium are described, such as magnesium reduction method, aluminothermic reduction method, molten salt electrolytic refining method, direct electro-deoxidation method, iodination refining and electron beam melting method. The principle and research progress of each method are summarized, and the advantages and disadvantages of various processes are pointed out.