Take Fine Tungsten Powder in Molten Salt Electrolysis Method

The present invention provides a system to take technology with molten salt electrolysis method of fine tungsten powder. Specific steps are as follows:

1) electrolyte composition of basic parts by weight KCl electrolyte NaCl 20-80 parts complement to 100 copies; according to the aforementioned proportion of the NaCl, KCl mixture of 50-85 parts Na2WO4 8-40 copies of WO3 3-8 copies LiCl 0-40 copies CaCl2 0 10 parts MgCl2 0-10 copies;

2) according to changes in the temperature of the electrolysis of the electrolyte components, adapted to take the temperature of a temperature range of 560-750 ℃;

3) a cathode current density of the cathode current density 0.15-1.2A/cm2;

4) a cathode material of the cathode material can be selected as iron, iron alloy, tungsten, tungsten alloy, except for any one of a conductive carbonaceous properties of composite materials;

5) anode materials can be selected and an anode material of inert metal materials carbonaceous material.
 

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