Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1977-08-11
1979-03-13
Andrews, M. J.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
C21B 102
Patent
active
041440510
ABSTRACT:
A process for thermally treating fine-grained solids with high-oxygen gases at temperatures at which the solids can form molten and gaseous reaction products comprises carrying out the thermal treatment in a cyclone chamber and thereafter conducting the gases from the cyclone chamber into a horizontal or vertical cooling chamber. The process can be used for the roasting of sulfide ores, ore concentrates and other metallurgical intermediate products. The outlet of the cyclone chamber through which the gases are removed lies approximately along the axis and cooling is carried out in the cooling chamber such that the molten droplets contained in the gas stream entering the latter are cooled in free flight below their solidification point in the gas, i.e., do not contact the walls of the cooling chamber until they are solidified at least along their surfaces.
REFERENCES:
patent: 3915692 (1975-10-01), Herbert et al.
patent: 4017307 (1977-04-01), Winterhager et al.
Rahn Martin
Reh Lothar
Thone Bernd
Vydra Karel
Andrews M. J.
Deutsche Babcock Aktiengesellschaft
Metallgesellschaft Aktiengesellschaft
Ross Karl F.
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