Process for the volatilization of zinc and/or lead from metallur

Details Process for the volatilization of zinc and/or lead from metallur Process for the volatilization of zinc and/or lead from metallur

1978-03-31

1980-04-29

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 86, 75 87, C22B 1920, C22B 1904

Patent

active

042004543

ABSTRACT:
Zinc and, if desired, lead are volatilized from a metallurgical material such as a finely divided oxidic ore, ore concentrate or another metallurgical intermediate. The volatilization of the zinc is carried out at a temperature above 1300.degree. C. in a cyclone chamber which has an axis that is substantially horizontal, i.e. is inclined to the horizontal at an angle of 0.degree. to 15.degree.. Carbon dioxide is removed from the gas leaving the zinc condensing stage and the high carbon monoxide gas thus obtained is recycled to the cyclone chamber or at another point ahead of the condensation stage.

REFERENCES:
patent: 4132764 (1979-01-01), Cines

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