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Patent No: US7473406 [USA] Application No: 10/448,459
Title: Process for recovery of palladium from spent catalyst
Issue Date: 06-01-2009 File Date: 30-05-2003
Inventor(s): Jasra Raksh Vir; Ghosh Pushpito Kumar; Bajaj Hari Chand; Boricha Arvindkumar Balvantrai
IPC Classification: C01G 55/00 (20060101)
Abstract:
The present invention relates to an improved process for the recovery of palladium from spent catalyst. The present invention particularly relates to a suitable method of catalyst recovery of precious metals from spent catalysts or inorganic waste and more specifically the process concerns with the recovery of palladium that is anchored on carbon and is used as catalyst for the hydrogenation of nitro aromatics or as a catalyst for many other organic transformations.
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