Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent
1996-06-07
1997-11-04
Andrews, Melvyn
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
75724, 75725, 75961, 204604, 423108, C22B 702, C22B 314, C22B 346
Patent
active
056834888
ABSTRACT:
A method for the recovery of iron products, specifically direct reduced iron and iron oxide suitable for use as the feedstock for steel mills, from industrial waste streams containing iron, by treating the waste streams with an ammonium chloride leaching solution, separating the undissolved precipitates comprising iron compounds from the leachant solution, and further treating the undissolved precipitants by elevated temperature roasting, resulting in the iron feedstocks.
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Direct Reduced Iron Iron & Steel Society Aug. 1982, TN 707 D56 p. 45.
Olper, M., "The EZINEX Process-A New And Advanced Way For Electrowinning Zinc From A Chloride Solution", International Symposium-World Zinc, Oct. 1993.
Burrows Charles A.
DiBella Paul R.
Myerson Allan S.
Andrews Melvyn
Metals Recycling Technologies Corp.
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