A principal technological scheme for the complex electrochemical processing of the wastes from a rhenium-containing nickel superalloy in sulfuric acid electrolytes is developed on the basis of physicochemical studies. The process according to the technological scheme produces potassium perrhenate, calcium tungstate, nickel sulfate, and a tantalum concentrate as marketable products.
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Palant et al. (2011) studied this question.
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