Recovery of metal values from cermet

Specialized metallurgical processes – compositions for use therei – Compositions

Reexamination Certificate

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C075S414000

Reexamination Certificate

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07048774

ABSTRACT:
Cermet material obtained from unused inert anodes, used inert anodes and cermet used in the production of inert anodes is beneficiated into a nonferrous metal concentrate composition from which metal values contained in the composition may be readily recovered by using a conventional smelting process. The invention also relates to the use of the composition in a smelting process for the recovery of metal values from the cermet composition of the invention.

REFERENCES:
patent: 400664 (1889-04-01), Hall
patent: 3393876 (1968-07-01), Elmore
patent: 3689253 (1972-09-01), Dorenfeld et al.
patent: 4029494 (1977-06-01), Kapanen et al.
patent: 4118219 (1978-10-01), Elmore et al.
patent: 4119454 (1978-10-01), Rath
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patent: 4356030 (1982-10-01), Halpin et al.
patent: 5186740 (1993-02-01), Sancinelli
patent: 5865980 (1999-02-01), Ray et al.
patent: 6030518 (2000-02-01), Dawless et al.
patent: 6423204 (2002-07-01), Ray et al.
patent: 66833 (1980-06-01), None
Translation and Abstract of Romanian patent RO 66833.
Derwent-Acc-No: 1966-149677 Dewent Week: 199615 English Abstract.
“Non-Ferrous Metal Works of the World”, 1995, Metal Bulletin Books Ltd., 7th Ed., England.
“Extractive Metallurgy of Copper”, vol. 1, Chapter 23, The International Nickel Company of Canada Limited, Chapter 11, pp. 218-233, no date.
“Extractive Metallurgy of Copper”, A.K. Biswas and W.G. Davenport, 3rd Ed., 1994, pp. 74-99, 194-223.
“Copper Technology & Competitiveness”, Congress of the U.S., Office of Technology Assessment, pp. 126-139, no date.
“Pollution Prevention and Abatement Handbook”, World Bank Group, Jul. 1998, pp. 349-352.
“Copper Smelting”, Pollution Prevention and Abatement Handbook, World Bank Group, Jul. 1998, pp. 291-294.
English abstract of Romanian patent RO 66833.

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