High efficiency process for treating mixed metal waste

Chemistry: electrical current producing apparatus – product – and – Regenerating – salvage or repair feature other than only...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C075S711000

Reexamination Certificate

active

07078122

ABSTRACT:
A process for rendering hazardous materials present in multi-element waste non-hazardous, and for recovering valuable components of said waste, particularly metals, comprising contacting the waste with an aqueous solution of HX, wherein X is halogen, thereby converting metals present in the waste to the corresponding halides, and subsequently separating said metal halides from other components of the reaction mixture and from each other.

REFERENCES:
patent: 4096045 (1978-06-01), Ahonen et al.
patent: 4637928 (1987-01-01), Zajac et al.
patent: 4874429 (1989-10-01), Bertha
patent: 5429887 (1995-07-01), Lyman et al.
patent: 6120927 (2000-09-01), Hayashi et al.
patent: WO 99/37823 (1999-07-01), None
Shibata, J. et al “Development of . . . Battery”, Treatment and Minimization of Heavy Metal-Containing Wastes, 1995; XP000892801.
Pingwei, Z. et al “Hydrometallurgical process . . . Batteries”, Hydrometallurgy, NL, Elsevier Scientific Pub. Cy. Amsterdam, vol. 47, No. 2-3, 1998, pp. 259-271, XP004109817.
Chemical Abstracts, vol. 114, No. 16, Apr. 22, 1991, abst. No. 147669, Kadar, Endre et al: “Recovery of cadmium . . . batteries” XP002153538.
Patent Abstracts of Japan, vol. 1998, No. 14, Dec. 31, 1998 & JP 10 255862, Sep. 25, 1998.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

High efficiency process for treating mixed metal waste does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High efficiency process for treating mixed metal waste, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High efficiency process for treating mixed metal waste will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3531707

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.