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Recovery of metal values from spent catalysts
Recovery of metal values from spent catalysts
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机译:从废催化剂中回收金属价值
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摘要
Spent catalysts from hydrocarbon refining processes, comprising transition metal compounds on aluminum oxide-containing supports, are subjected to an oxidative roasting and are treated with sulfuric acid in a counter-current digester to dissolve metals. Following operations to separate compounds of the various transition metals, a solution containing approximately stoichiometric equivalents of aluminum and sulfate is obtained.
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