METHOD OF RECEIVING OF ACTIVE NICKEL POWDER Russian patent published in 2009 - IPC C22B23/02 B22F9/20 

FIELD: metallurgy.

SUBSTANCE: invention relates to non-ferrous metallurgy and can be used for receiving of nickel powder from nickel protoxide. Nickel protoxide is reduced in pipe furnace at temperature 1000-1150°C by solid carbon- and hydrogenous reducer, fed into furnace in amount 15-21% of mass of reduced nickel protoxide. Reduced powder is cooled by water up to the temperature 220±40°C and it is extracted active fraction of powder fineness -1+0.2 mm. From powder it is separated residual carbon and ashes of solid reducer. It is used solid reducer with content of volatile components 10-30%.

EFFECT: received nickel powder is defined by metallisation degree more than 90% and cement-grout activity more than 80%.

4 cl, 1 tbl