Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1980-03-04
1983-05-24
Andrews, M. J.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 11, 75 40, 75 82, 75 84, 75103, 75119, C22B 400, C22B 2304, C22B 3434
Patent
active
043848850
ABSTRACT:
A process for the recovery of valuable metals from spent desulfurization catalyst wherein the catalyst, which has not been subjected to oxidative roasting, is thermally reduced in the presence of carbon and calcium oxide.
REFERENCES:
patent: 3567433 (1971-03-01), Gutnikov
patent: 4029495 (1977-06-01), Hirayama
patent: 4087510 (1978-05-01), Steenken
patent: 4120698 (1978-10-01), Atchison et al.
patent: 4138249 (1979-02-01), Rosot
patent: 4214895 (1980-07-01), Gingerich et al.
Krismer Bruno
Muller Hans R.
Sottman Wilfried
Andrews M. J.
Hermann C. Starck Berlin
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