发明名称 |
RECOVERY OF TITANIUM DIOXIDE FROM TITANIUM OXIDE BEARING MATERIALS LIKE STEELMAKING SLAGS |
摘要 |
<p>A method of recovering titanium dioxide from a titanium oxide bearing raw material, such as e.g. steel slags rich in TiO2 includes the steps of grindi ng the titanium dioxide raw material, reacting the particulate raw feed materia l with sulphuric acid under specified conditions, digesting and filtering the resultant cake material containing titanyl sulphate, hydrolysing the titanyl sulphate and, after washing the hydrolysate, calcining the hydrolysate to produce titanium dioxide.</p> |
申请公布号 |
CA2431257(A1) |
申请公布日期 |
2002.06.20 |
申请号 |
CA20012431257 |
申请日期 |
2001.06.12 |
申请人 |
ROSSMALI TECHNOLOGY HOLDINGS (PTY) LTD.;HIGHVELD STEEL AND VANADIUM CORPORATION LIMITED |
发明人 |
DUTTON, DANIEL FREDERICK;BEKKER, JAN HENDRIK |
分类号 |
C01G23/047;C01G23/053;C22B7/04;C22B34/12;(IPC1-7):C22B34/12;C22B3/08 |
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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