发明名称 Process for preparation of neodymium or neodymium-iron alloy
摘要 Provided is a fused salt electrolysis process for preparing neodymium or a neodymium alloy, especially a neodymium/iron alloy, which has a high purity and a reduced carbon content, at a low cost, a high current efficiency and a high productivity. According to this fused salt electrolysis process, by collecting the formed neodymium or neodymium alloy at the bottom of the bath and incorporating oxygen gas in the atmosphere above the bath, powdery carbon generated from the carbon electrodes is removed by oxidation and consumption and the electrolysis bath is stabilized. Furthermore, by using a plate-shaped electrode at least for the anode, the critical current density is increased and neodymium or a neodymium alloy can be formed at a high current density and a high current efficiency.
申请公布号 US5091065(A) 申请公布日期 1992.02.25
申请号 US19900530772 申请日期 1990.05.30
申请人 SHOWA DENKO K.K. 发明人 TAMAMURA, HIDEO
分类号 C25C3/34 主分类号 C25C3/34
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