Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2001.10a
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- Pages.472-477
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- 2001
Recovery of Platinum from Spent Petroleum Catalysts by Substrate Dissolution in Sulfuric Acid
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Lee, Jae-Chun
(Korea Institute of Geoscience and Mineral Resources) ;
- Jinki Jeong (Korea Institute of Geoscience and Mineral Resources) ;
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Kim, Wonbaek
(Korea Institute of Geoscience and Mineral Resources) ;
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Jang, Hee-Dong
(Korea Institute of Geoscience and Mineral Resources)
- Published : 2001.10.01
Abstract
Spent catalysts containing platinum were generated in petroleum refinery and other chemical industries. The reclamation of precious metals from such wastes has long been attempted in view of their rare, expensive and indispensable nature. In this study, the recovery of platinum from petroleum catalysts was attempted by a method consisting mainly of dissolving alumina substrate with sulfuric acid thereby concentrating insoluble platinum. Also, platinum dissolved partially in sulfuric acid was recovered by a cementation method using aluminum metal as a reductive agent. The effect of temperature, time, concentration of sulfuric acid. and pulp density on the dissolution of substrate was investigated. When the substrate of platinum catalyst was