Method and system for regenerating of plating baths

Details Method and system for regenerating of plating baths Method and system for regenerating of plating baths

2005-09-13

2005-09-13

Koehler, Robert R. (Department: 1775)

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Treating process fluid by means other than agitation or...

C205S099000, C205S101000, C210S748080, C210S749000, C210S758000, C210S759000, C210S760000, C210S765000, C210S766000, C210S918000

Reexamination Certificate

active

06942779

ABSTRACT:
The present invention provides a system and method for selectively removing one or more organic and inorganic and also preferably one or more inorganic contaminants from plating baths. More particularly, the invented method relates to the use of a source of energy in combination with chemical oxidants, alone or in conjunction with a catalyst to oxidize organic contaminants in the plating bath to a level such that the electroplating bath can be recovered and reused after appropriate chemical adjustment. The oxidative treatment method may be a continuous process or a batch process that is performed in a single pass. Residual organics, if desired and chloride ions in the bath are removed from the solution by a chemisorption or physisorption treatment. Inorganic contaminants are removed from the electroplating bath by selective ion exchange resins or electrodialysis, while particulate and suspended colloidal particles are removed by filtration before the treated plating bath is recycled.

REFERENCES:
patent: 3267010 (1966-08-01), Creutz
patent: 3770598 (1973-11-01), Creutz
patent: 3920547 (1975-11-01), Garrison et al.
patent: 4110776 (1978-08-01), Rao et al.
patent: 4289594 (1981-09-01), Alpaugh et al.
patent: 4512900 (1985-04-01), Macur et al.
patent: 4652352 (1987-03-01), Saieva
patent: 4724084 (1988-02-01), Pahmeier et al.
patent: 4734175 (1988-03-01), Bissinger
patent: 4792407 (1988-12-01), Zeff et al.
patent: 4849114 (1989-07-01), Zeff et al.
patent: 5043080 (1991-08-01), Cater et al.
patent: 5091070 (1992-02-01), Bauer et al.
patent: 5272091 (1993-12-01), Egozy et al.
patent: 5288373 (1994-02-01), Yang
patent: 5290439 (1994-03-01), Buchwald
patent: 5328589 (1994-07-01), Martin
patent: 5451323 (1995-09-01), Akao et al.
patent: 5486410 (1996-01-01), Groeger et al.
patent: 5523001 (1996-06-01), Foeckler, Jr. et al.
patent: 5562822 (1996-10-01), Furness, Jr. et al.
patent: 5637231 (1997-06-01), Hill et al.
patent: 5868924 (1999-02-01), Nachtmann et al.
patent: 5891402 (1999-04-01), Sassa et al.
patent: 6162361 (2000-12-01), Adiga
patent: 6391209 (2002-05-01), Belongia et al.
patent: 6596148 (2003-07-01), Belongia et al.
patent: 42 41 867 (1994-06-01), None
patent: 195 25 509 (1996-01-01), None
patent: 198 10 859 (1999-09-01), None
patent: 1-222099 (1989-09-01), None
patent: WO 99/19544 (1999-04-01), None
Junzo Suzuki, “Study on Ozone Treatment of Water-Soluble Polymers”,J. Applied Polymer Science, 20:93-103 (1976), no month given.
Sigman, et al., “Application of Advanced Oxidation Process Technology to Extremely High TOC Containing Aqueous Solutions”,J. Adv. Oxid. Technol., 2:3:415-423 (1997), no month given.
Suzuki, et al., “Ozone Treatment of Water-Soluble Polymers”,J. Applied Polymer Science, 23:3281-3288 (1979), no month given.
Legrini, et al., “Photochemical Process for Water Treatment”,Chem. Rev., 93:671-698 (1993), no month given.

Affiliated with

Also associated with

Rating

Method and system for regenerating of plating baths 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 and system for regenerating of plating baths, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for regenerating of plating baths will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3440218