Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 3, 2009
Patent Application Number
11192522
Date Filed
July 29, 2005
Patent Primary Examiner
Patent abstract
The process of this invention is directed to the removal of metals from an unsupported spent catalyst. The catalyst is subjected to leaching reactions. Vanadium is removed as a precipitate, while a solution comprising molybdenum and nickel is subjected to further extraction steps for the removal of these metals. Molybdenum may alternately be removed through precipitation.
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