C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/168
C22B 3/40 (2006.01) C01G 55/00 (2006.01) C22B 3/26 (2006.01) C22B 3/28 (2006.01) C22B 3/36 (2006.01)
Patent
CA 1122016
MRR.662 ABSTRACT OF DISCLOSURE This invention relates to the separation and purification of the platinum group metals, and more particularly to the separation and purification of palladium present in aqueous solutions which also contain one or more of the salts of platinum, rhodium ruthenium, osmium and iridium and the salts of base metals. A process for the separation and purification of the palladium which is present in a platinum group metal-containing aqueous solution comprises the following steps: (a) adjustment, if necessary, of the pH of the platinum group metal-containing aqueous solution to render it acidic; (b) contracting the so-obtained acidic solution with an organic phase containing an oxime extractant and an anionic phase transfer material substantially insoluble in said aqueous solution, (c) removing from contact with the acidic solution the organic phase containing substantially all of the palladium.
319804
Grant Richard A.
Shanton Kenneth J.
Matthey Rustenburg Refiners (pty) Ltd.
Ridout & Maybee Llp
LandOfFree
Solvent extraction of palladium from platinum group... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Solvent extraction of palladium from platinum group..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solvent extraction of palladium from platinum group... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-957149