Process for the recovery of valuable metals from spent crude-oil sulfur-extraction catalysts
作者： Heikki A. Tiitinen , Jussi K. Rastas , Kauko J. Karpale
DOI:
关键词: Inorganic chemistry 、 Flue-gas desulfurization 、 Sulfur 、 Extraction (chemistry) 、 Sulfuric acid 、 Roasting 、 Energy source 、 Sulfate 、 Alunite 、 Chemistry
摘要: A process for the recovery of valuable metals from roasted crude-oil sulfur-extraction catalyst waste is disclosed. In this value can be separated aluminum in a single stage by treating at elevated temperature and pressure with such an amount sulfate solution that dissolves simultaneously precipitates as alunite, which contains other metals. preferably added concentration sulfuric acid 2-30 g/l end stage.
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