ACID BENEFICIATION OF ORE - MILLENNIUM INORGANIC CHEM

Title:

ACID BENEFICIATION OF ORE

Document Type and Number:

WIPO Patent Application WO2003089674

Kind Code:

A3

Abstract:

Processes for the efficient and economical beneficiation of titaniferous ore are provided. A unique process for beneficiating ore comprising pretreatment of the ore by oxidation and reduction, followed by acid leaching with sulfuric acid has been developed. The acid used in this process may be recycled, which will thereby increase the efficiency of the process. Preferably the ore treated according to the present invention is ilmenite ore.

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Inventors:

EARL SMITH
ROBINSON MICHAEL
KIRIT TALATI

Application Number:

PCT/US2003/012656

Publication Date:

December 24, 2003

Filing Date:

April 15, 2003

Export Citation:

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Assignee:

MILLENNIUM INORGANIC CHEM (US)

International Classes:

C01G23/053; C22B19/20; C22B34/12; (IPC1-7): C22B34/12; C22B3/08; C22B1/00; C01G23/047

Foreign References:

DE2234843A1	1974-01-31
DE3635010A1	1988-04-14
US3647414A	1972-03-07
US3784670A	1974-01-08
GB1282505A	1972-07-19

Other References:

DATABASE WPI Section Ch Week 200005, Derwent World Patents Index; Class E37, AN 2000-060392, XP002256539
DATABASE WPI Section Ch Week 199119, Derwent World Patents Index; Class E32, AN 1991-133271, XP002256540

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