Recovering metals from spent hydroprocessing catalysts

Details Recovering metals from spent hydroprocessing catalysts Recovering metals from spent hydroprocessing catalysts

C - Chemistry, Metallurgy

22

B

53/373

C22B 7/00 (2006.01) C22B 11/00 (2006.01)

Patent

CA 1224927

ABSTRACT OF THE DISCLOSURE A method of stripping an organic extraction solvent containing extracted metal constituents selected from the class consisting of Group Vb and Group VIb metals of the Periodic Table and quaternary alkyl ammonium comprising: contacting said organic extraction solvent with an aqueous stripping solution maintained at a temperature of not more than 50°C, a pH of between 7 and 9, and containing at least 75 grams per liter of a salt of a bicarbonate ion, for a time sufficient to convert said metal quaternary alkyl ammonium complexes to aqueous soluble metal complexes; separating said organic extraction solvent and said aqueous stripping solution. This stripping method finds use in the re- covery of Group Vb and Group VIb metals in solvent extraction processes used to treat spent hydroprocessing catalysts.

517942

Affiliated with

Also associated with

Rating

Recovering metals from spent hydroprocessing catalysts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recovering metals from spent hydroprocessing catalysts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovering metals from spent hydroprocessing catalysts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1283028