Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1991-12-20
1993-06-08
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204106, 204114, 204120, C25C 108, C25C 112, C25C 114, C25C 118
Patent
active
052175855
ABSTRACT:
Nickel (or other transition metal) contaminated with about 5 ppm technetium is decontaminated by dissolving the nickel and the technetium into an aqueous acid solution while introducing a graphite or activated carbon powder into the acid to immediately adsorb the dissolving technetium. The technetium-contaminated powder is separated from the aqueous acid solution and the nickel is then electrowon from the solution. The depleted acid solution is then recycled back to the dissolution step.
REFERENCES:
patent: 3853725 (1974-12-01), Skalbo et al.
patent: 3891741 (1975-06-01), Carlin et al.
patent: 3928153 (1975-12-01), Gendron et al.
patent: 4148631 (1979-04-01), Babjak et al.
patent: 4162231 (1979-07-01), Howritz et al.
patent: 4162296 (1979-07-01), Muller et al.
patent: 4196076 (1980-04-01), Fukjimoto et al.
patent: 4299724 (1981-11-01), Stana
patent: 4395315 (1983-07-01), Zambro
patent: 4407725 (1984-10-01), Allen et al.
patent: 4431609 (1984-02-01), Scheitlin
patent: 4442071 (1984-04-01), Lieber et al.
patent: 4476099 (1984-10-01), Camp et al.
patent: 4519985 (1985-05-01), Wells et al.
patent: 4528165 (1985-07-01), Friedman
patent: 4624703 (1986-11-01), Vanderpool et al.
patent: 4656011 (1987-04-01), Garraway et al.
patent: 4764281 (1988-08-01), Elfline
patent: 4764352 (1988-08-01), Bathellier et al.
patent: 4789444 (1988-12-01), Watanabe et al.
patent: 4808384 (1989-02-01), Vanderpool et al.
patent: 4818503 (1989-04-01), Nyman et al.
patent: 5104549 (1992-04-01), Kamei et al.
Lowenheim, F., "Modern Electroplating," 3rd Edition, John Wilby & Sons, 1974, pp. 287-289.
Ayers Laura J.
Boris Gregory F.
Gass William R.
Snyder Thomas S.
Igoe Patrick J.
Niebling John
Valentine J. C.
Westinghouse Electric Corp.
LandOfFree
Transition metal decontamination process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transition metal decontamination process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transition metal decontamination process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1931411