Transferred-arc plasma reactor for chemical and metallurgical ap

Details Transferred-arc plasma reactor for chemical and metallurgical ap Transferred-arc plasma reactor for chemical and metallurgical ap

1982-05-26

1984-08-21

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 11, 75 12, C22B 400

Patent

active

044668244

ABSTRACT:
A transferred-arc plasma reactor is disclosed. The reactor comprises a bottom portion defining a crucible for collecting molten material, an anode adapted to contact the molten material in the crucible, a sleeve mounted on top of the crucible and electrically insulated therefrom, a cathode assembly including a cathode mounted on top of the sleeve and electrically insulated therefrom, means for introducing feed material conveyed by a carrier gas near the top of the sleeve so that the material is fed against the inner wall of the sleeve, melted under the heating energy radiated by a plasma arc formed between the cathode and the molten material to form a falling film of molten material which flows down along the inner wall of the sleeve and drops into the crucible underneath, and outlet ports in the bottom portion of the reactor for exiting the carrier gas and the non-reacted plasma forming gas.

REFERENCES:
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patent: 4154972 (1979-05-01), Tylko
patent: 4234334 (1980-11-01), MacRae et al.
Fauchais, "Utilisation Industrielle Actuelle et Potentielle des Plasmas: Syntheses, Traitement des Poudres, Traitements Metallurgiques, Traitements de Surface", Laboratoire de Thermodynamique, Universite de Limoges, France, May 6, 1980.
Munz et al., "The Decomposition Kinetics of Molybdenite in an Argon Plasma", AIChE Journal, No. 6, vol. 21, Nov. 1975.
Kubanek et al., "Plasma Decomposition of Molybdenum Disulphide--A Progress Report", Third Int'l Symposium on Plasma Chemistry, University of Limoges, France, Jul. 13-19, 1977.
MacRae et al., "Ferrovanadium Production by Plasma Carbothermic Reduction of Vanadium Oxide", Homer Research Laboratories, Dec. 1976.
Biceroglu et al., "Chlorination Kinetics of Zirconia in an RF Chlorine Plasma Tail Flame", AIChE Journal, vol. 26, No. 5, Sep. 1980, pp. 734-744.
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