发明名称 |
Selective chlorination of iron values in titaniferous ores. |
摘要 |
<p>A process for removing iron values from titaniferous ores is disclosed, comprising contacting ore with a reducing atmosphere at elevated temperatures; continuously cycling a part of the partially reduced ore to a chlorinating zone where it is partially chlorinated in an atmosphere substantially free of carbon and then recycled to the reducing zone; withdrawing the resulting TiO2 beneficiate and FeCl3 vapor from the chlorinating zone; oxidizing the FeCl3 vapor to produce Cl2 gas and a Fe2O3 waste stream; and recycling the Cl2 gas to the chlorinating zone.</p> |
申请公布号 |
EP0234807(A2) |
申请公布日期 |
1987.09.02 |
申请号 |
EP19870301181 |
申请日期 |
1987.02.11 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
GLAESER, HANS HELLMUT;REEVES, JAMES WILLIAM |
分类号 |
C01G23/047;C22B34/12 |
主分类号 |
C01G23/047 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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