Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ivb metal
Patent
1996-01-26
1997-08-26
Bos, Steven
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ivb metal
75474, 75477, 75503, C01G 2302, C22B 100, C21B 1500
Patent
active
056608055
ABSTRACT:
A process for beneficiating particulate titanium-bearing ore containing iron oxides is disclosed. The first step of the process entails prereducing the ore to convert about 20-90 percent of the iron oxides in the ore to metallic iron. Next, the prereduced ore is introduced into a mechanical reduction kiln and contacted with HCl and particulate carbonaceous reducing material. The turning and cascading of the materials in the kiln, in the presence of HCl and the reducing material, converts at least some remaining iron oxide in the ore to metallic iron and causes metallic iron to be liberated from the ore grains. Particulate metallic iron having a particle size of at least 50 microns is thereby formed. Finally, the particulate iron is separated from the ore.
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Ericson Aake Sandor
Reeves James William
Zander Bo Harry
Bos Steven
E. I. Du Pont de Nemours and Company
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