发明名称 |
LEACHING OF A TITANIFEROUS MATERIAL |
摘要 |
<p>An industrially realistic process for upgrading of titaniferous materials is disclosed. The process comprises the following steps: (i) a pretreatment which has the effect of rendering silica amenable to leaching under the particular conditions of a subsequent leach, and (ii) an aqueous leach in the presence of an acid, the conditions of which are chosen such that silica which enters solution is not hydrolysed or precipitated as a silicate. The pretreatment step (i) may comprise alkaline leaching, roasting or smelting. The leaching step (ii) may be conducted at low solids densities.</p> |
申请公布号 |
EP0755459(A1) |
申请公布日期 |
1997.01.29 |
申请号 |
EP19950915693 |
申请日期 |
1995.04.18 |
申请人 |
TECHNOLOGICAL RESOURCES PTY. LTD. |
发明人 |
MCCLELLAND, ROSS ALEXANDER;HOLLITT, MICHAEL JOHN |
分类号 |
C01G23/04;C22B3/04;C22B3/06;C22B34/12;(IPC1-7):C22B1/00;C01G23/053;C01G23/047;C22B3/12;C22B3/10;C22B3/08;C22B1/02 |
主分类号 |
C01G23/04 |
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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