Reduction-segregation of ilmenite: Iron and titanium co-products from solid-state processing

被引:0
|
作者
Battle, TP [1 ]
Leary, KJ [1 ]
Reeves, JW [1 ]
Ericson, AS [1 ]
Zander, B [1 ]
机构
[1] DuPont White Pigments & Mineral Prod, Edge Moor, DE USA
来源
SECOND INTERNATIONAL SYMPOSIUM ON EXTRACTION AND PROCESSING FOR THE TREATMENT AND MINIMIZATION OF WASTES - 1996 | 1996年
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中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Ilmenite (iron titanate) is the source of over 90% of all the titanium produced in the world today. At some point during production of titanium dioxide or titanium metal the iron impurity must be removed Too often it becomes a waste instead of a product DuPont and MINPRO have developed a solid-state process which separates the iron and titanium components of ilmenite into different high-purity powders, which can be separated using conventional mineral processing techniques. The main reactor in this process is a unique high-temperature ball mill, where the iron segregates from the ilmenite lattice with the assistance of catalytic quantities of HCl. The results of lab, pilot plant, theoretical, and scale-up studies are presented and discussed.
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页码:427 / 446
页数:20
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