Method for removing zinc type metals and compounds in dust recov

Details Method for removing zinc type metals and compounds in dust recov Method for removing zinc type metals and compounds in dust recov

1977-08-22

1979-01-16

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

55 72, 209211, C22B 704

Patent

active

041347552

ABSTRACT:
A process and apparatus for recycling iron material components of dusts discharged from iron manufacturing furnaces such as blast furnaces and converters and removing zinc type metals and compounds from such dusts to avoid their deposition and accumulation on the furnace walls. A welt method is employed for separating the iron dust components from the zinc and removing these zinc type metals and compounds. The zinc material is made identifiable or "earmarked" from the iron material by being selectively ground or otherwise reduced to finer particles than the iron material, the zinc material then being removed from the iron material by wet separation under negative pressures for reclamation or disposal. The iron material remaining is processed for recycling into the furnace.

REFERENCES:
patent: 3063694 (1962-11-01), Gaw
patent: 4018680 (1977-04-01), Kupfer

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