Separation of platinum group metals

Details Separation of platinum group metals Separation of platinum group metals

2008-04-08

2008-04-08

Therkorn, Ernest G. (Department: 1723)

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

C210S656000, C210S198200, C423S022000

Reexamination Certificate

active

10513357

ABSTRACT:
A process for the chromatographic interseparation of rhodium in admixture with at least one base metal from a feed solution comprising complexes of these metals. The process comprises contacting the solution with at least one chromatographic medium, and eluting one or more fractions such that at least one fraction comprises rhodium complex substantially free from base metal contamination. The at least one chromatography medium comprises a support functionalised with substituted amine groups which further comprise at least one hydrophilic group. Other platinum group metals can also be separated, both from one another and from base metals.

REFERENCES:
patent: 4105442 (1978-08-01), Fieberg et al.
patent: 4130625 (1978-12-01), Evers et al.
patent: 4885143 (1989-12-01), Schmuckler
patent: 5120443 (1992-06-01), Bruening et al.
patent: 5165901 (1992-11-01), Crozier et al.
patent: 5478376 (1995-12-01), Grant et al.
patent: 6365049 (2002-04-01), Smith
patent: 197 46 134 (1999-03-01), None
patent: 0 106 327 (1984-04-01), None
patent: 0 756 013 (1997-01-01), None
patent: 0 906 962 (1999-04-01), None
patent: 1 074 635 (2001-02-01), None
patent: 1 167 555 (2002-01-01), None
patent: 2 293 372 (1996-03-01), None
patent: WO 99/14385 (1999-03-01), None
patent: WO 02/36837 (2002-05-01), None
Frank Bottomley, “Nitrosyl Complexes of Ruthenium,”Coordination Chemistry Reviews, vol. 26, No. 1, Jun. 1978, pp. 7-32.
E. E. Mercer, W. M. Campbell, Jr., and R. M. Wallace, “Chloro Complexes of Nitrosylruthenium,”Inorganic Chemistry, vol. 3, No. 7, 1964, pp. 1018-1024.
Michael J. Hudson, Kevin D. Helps, and Alan Dyer, “Selective Extraction of Ruthenium-Nitrosyl Cations Using Modified Inorganic Materials,” (Cambridge: Royal Society of Chemistry, 1993, Special Publication No. 122), pp. 289-297.
Ed. by Fathi Habashi: “Handbook of Extractive Metallurgy,” 1997, Wiley-VCH, Weinheim, Germany, pp. 1288-1297 and 1321-1326.
Kukushkin et al., “Sorption of platinum metals by copolymers of glycidyl methacrylate and ethylene dimethacrylate modified with ethylenediamine and diethylamine,”Journal of Applied Chemistry of USSR, vol. 52, No. 7(1), Jul. 1979, pp. 1414-1418.
International Search Report dated Aug. 12, 2003, from International Application No. PCT/GB03/01548.
British Search Report dated Oct. 14, 2002, from British Patent Application No. 0210099.8.

Affiliated with

Also associated with

Rating

Separation of platinum group metals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Separation of platinum group metals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separation of platinum group metals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3926859