Method for recovering rhodium

Details Method for recovering rhodium Method for recovering rhodium

2011-08-16

2011-08-16

King, Roy (Department: 1733)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

C075S728000

Reexamination Certificate

active

07998241

ABSTRACT:
The present invention provides a method for recovering rhodium sponge in high yield from ammonium hexachloro rhodate solution. The method comprises adding formic acid to ammonium hexachloro rhodate solution to reduce the rhodate, recovering reduced rhodium as rhodium black, and calcining the rhodium black under hydrogen atmosphere without water-washing to obtain rhodium sponge.

REFERENCES:
patent: 3672875 (1972-06-01), MacCragh
patent: 4022443 (1977-05-01), Belt et al.
patent: 4105442 (1978-08-01), Fieberg et al.
patent: 4390366 (1983-06-01), Lea et al.
patent: 4397689 (1983-08-01), Lea et al.
patent: 4407738 (1983-10-01), Eskinazi et al.
patent: 0 048 103 (1982-03-01), None
patent: 0 049 567 (1982-04-01), None
patent: 1-30896 (1989-06-01), None
patent: 2006-265677 (2006-10-01), None
patent: 2007-154252 (2007-06-01), None
patent: 2007-270228 (2007-10-01), None
NPL: Machine translation of JP-2006265677 Oct. 2006.
Paretsky, V.M et al. “Hydrometallurgical Method for Treating Special Alloys, Jewelry, Electronic and Electrotechnical Scrap.” State Research Center of Russian Federation, 2004, p. 713-721. XP009098610.

Affiliated with

Also associated with

Rating

Method for recovering rhodium does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for recovering rhodium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for recovering rhodium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2760294