Process for metals recovery from spent catalyst

Details Process for metals recovery from spent catalyst Process for metals recovery from spent catalyst

2008-12-30

2010-06-15

Bos, Steven (Department: 1793)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

C423S055000, C423S056000, C423S067000, C423S068000, C423S087000, C423S139000, C423S146000, C423S306000

Reexamination Certificate

active

07736607

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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