NICKEL-COBALT CONCENTRATE PRODUCTION UNDER THE PROCESSING OF RHENIUM-CONTAINING HIGH-TEMPERATURE ALLOY
https://doi.org/10.17073/0021-3438-2016-6-42-48
Abstract
The article describes the results of HAS32-VI superalloy electrochemical processing in nitric acid solutions in galvanostatic mode. Experiments were conducted for electrochemical dissolution of HAS32-VI superalloy in galvanostatic mode using nitric acid with a concentration of 100 g/l at different values of anode current density. It is found that this leads to quantitative separation of superalloy HAS32-VI components. The anode slurry is the concentrate of refractory metals – niobium, tantalum, molybdenum and tungsten. Cobalt, rhenium and the principal amount of aluminum, chromium and nickel partially pass into electrolyte. The flow diagram of HAS32-VI superalloy processing was suggested that provides for generation and separation of the principal nickel and cobalt amount at the first stage with the formation of Ni–Co-containing metal sediment.
About the Authors
O. V. Chernyshova
Moscow Technological University
Russian Federation
Cand. Sci. (Tech.), Associate Professor of Department of chemistry and technology of rare and dispersed elements, and nanoscale composite materials
Russian Federation
Cand. Sci. (Tech.), Associate Professor of Department of chemistry and technology of rare and dispersed elements, and nanoscale composite materials
D. K. Kanagatov
Moscow Technological University
Russian Federation
Master’s Student of the Department of chemistry and technology of rare and dispersed elements, and nanoscale composite materials
Russian Federation
Master’s Student of the Department of chemistry and technology of rare and dispersed elements, and nanoscale composite materials
D. V. Drobot
Moscow Technological University
Russian Federation
Dr. Sci. (Chem.), Prof., Head of the Department of chemistry and technology of rare and dispersed elements, and nanoscale composite materials
Russian Federation
Dr. Sci. (Chem.), Prof., Head of the Department of chemistry and technology of rare and dispersed elements, and nanoscale composite materials
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Review
For citations:
Chernyshova O.V., Kanagatov D.K., Drobot D.V. NICKEL-COBALT CONCENTRATE PRODUCTION UNDER THE PROCESSING OF RHENIUM-CONTAINING HIGH-TEMPERATURE ALLOY. Izvestiya. Non-Ferrous Metallurgy. 2016;(6):42-48. (In Russ.) https://doi.org/10.17073/0021-3438-2016-6-42-48
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