发明授权
- 专利标题： SULFURIC ACID BENEFICIATION OF TITANIFEROUS ORE FOR THE PRODUCTION OF TIO2
- 专利标题（中）： 富集含钛矿用硫酸，TiO2为生产
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申请号： EP03733883.7申请日： 2003-04-15
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公开(公告)号： EP1499752B1公开(公告)日： 2009-07-01
- 发明人: EARL, Smith , ROBINSON, Michael , TALATI, Kirit
- 申请人： Millennium Inorganic Chemicals, Inc.
- 申请人地址： 20 Wight Avenue, Suite 100 Hunt Valley, MD 21030 US
- 专利权人： Millennium Inorganic Chemicals, Inc.
- 当前专利权人： Millennium Inorganic Chemicals, Inc.
- 当前专利权人地址： 20 Wight Avenue, Suite 100 Hunt Valley, MD 21030 US
- 代理机构： Huygens, Arthur Victor
- 优先权： US126241 20020419
- 国际公布： WO2003089674 20031030
- 主分类号： C22B34/12
- IPC分类号： C22B34/12 ; C22B3/08 ; C22B1/00 ; C01G23/047
摘要：
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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