METHOD OF PRODUCTION OF TITANIUM-CONTAINING METALLIC POWDERS Russian patent published in 2017 - IPC C22B34/12 B22F9/16 C22B7/00 C22C14/00 B22F9/04 

FIELD: metallurgical engineering.

SUBSTANCE: method includes etching of ingots of titanium-containing metallic material, washing, hydrogenation of ingots, grinding of the resulting hydride into powder, dehydrogenation of the obtained hydride powder by thermal decomposition during vacuumizing, and re-grinding of the dehydrated powder. The etching is carried out in a solution of a mixture of hydrochloric acid and hydrofluoric acid containing 90 vol. % of hydrochloric acid and 10 vol. % of hydrofluoric acid, the dehydrogenation is periodically interrupted and exposed an inert gas to impact on the hydride powder for 55-60 seconds at an inert gas pressure of 0.5-0.7 MPa. The first impact of the inert gas on the powder of hydride is carried out after 1-1.5 hours after the start of dehydrogenation, and subsequent impacts of the inert gas are produced after 55-60 minutes of dehydrogenation during vacuumizing.

EFFECT: reduction of the hydrogen content in fine-dispersed titanium-containing powders of a narrow granulometric composition.

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