CPC C25C 7/02 (2013.01) [C25C 1/22 (2013.01)] | 15 Claims |
1. A tungsten electrode for molten salt electrolysis for rare earth metals preparation, comprising an open tungsten shell and a copper alloy body; wherein
the copper alloy body is arranged inside the open tungsten shell;
a tungsten buffer layer is provided between a side wall of the copper alloy body and the open tungsten shell;
the tungsten buffer layer has a thickness of 3 mm to 8 mm;
the tungsten buffer layer has a density of 12 g/cm3 to 14 g/cm3; and
a bottom of the copper alloy body is in contact with an inner bottom of the open tungsten shell.
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