METHOD OF MANUFACTURING TANTALUM POWDER AND FACILITY FOR ITS IMPLEMENTATION Russian patent published in 2009 - IPC C22B34/24 C22B5/04 B22F9/20 

FIELD: metallurgy.

SUBSTANCE: method includes sodium-reduced reduction of potassium fluorine- tantalat while its fractional or continuous batching into alloyed sodium. Reduction is implemented at the temperature from 400 till 600°C and ratio sodium / potassium fluorine- tantalat from 5 till 10. Facility contains heated reaction vessel with cover, degassing system, letting in and exhaust of argon, control system and keeping of pressure of argon inside the facility. It is additionally outfitted by joint by means of pipeline for sodium movement with reaction vessel with the second heated vessel with beveled bottom and allowing cover with facility of sodium charge, connecting pipe of sodium feeding and degassing and connecting pipe of sodium discharge. At that reaction vessel is implemented with beveled bottom and has implemented as perforated storage tank of reduced product. Cover of reaction vessel is outfitted by charging connecting pipe of potassium fluorine- tantalat.

EFFECT: powder improvement, cost saving, design simplification and its running.

7 cl, 1 dwg, 1 ex