PRODUCTION OF COMPOSITE POWDERS OF REFRACTORY AND RARE-EARTH METALS Russian patent published in 2015 - IPC B22F9/18 

Abstract RU 2538794 C1

FIELD: process engineering.

SUBSTANCE: invention relates to powder metallurgy. Metal chlorides in potassium chloride melt are subjected to magnesium-thermal reduction at heating and mixing. Reduced reaction mass is held without mixing for at least 30 minutes 800-900°C. Then, it is cooled and subjected to hydrometallurgical treatment with solution of salmiac with concentration 10-50 g/l of NH4Cl at 40-50°C for 30-60 minutes with powder production.

EFFECT: higher metal yield and powder homogeneity.

2 cl, 4 ex

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RU 2 538 794 C1

Authors

Arzhatkina Lidija Alekseevna

Arzhatkina Oksana Alekseevna

Nikitina Elena Viktorovna

Lazarenko Valentin Vladislavovich

Dates

2015-01-10Published

2013-12-23Filed