PROCESS FOR RECOVERING TUNGSTEN, SCANDIUM, IRON AND MANGANESE FROM TUNGSTEN-CONTAINING RAW MATERIAL Russian patent published in 1994 - IPC

Abstract RU 2020175 C1

FIELD: metallurgy. SUBSTANCE: prior to hydrometallurgical treatment, the tungsten-containing raw material having 20-30 % SiO2 and 12-20 % CaO is smelted under reducing conditions in the presence of carbon, heated to a temperature of 1460-1550 C and kept at this temperature till iron, manganese, tungsten and scandium are fully reduced and the resultant slag is separated. EFFECT: greater efficiency of the process. 1 tbl

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Authors

Vishkarev Аleksej Fedorovich

Zelikman Аbram Naumovich

Rakova Natal'Ja Nikolaevna

Аkhundov Nazim Fikret Ogly

Аkhundova Еvgenija Вorisovna

Dates

1994-09-30Published

1992-03-19Filed