Title:
METHOD FOR IMPROVING QUALITY OF TITANIUM-CONTAINING FEEDSTOCK
Document Type and Number:
WIPO Patent Application WO/2014/136901
Kind Code:
A1
Abstract:
[Problem] To provide a technique for manufacturing a high-titanium-content feedstock by efficiently separating out and removing metal impurities from a titanium-containing feedstock such as titanium slag or ilmenite. [Solution] A method for improving the quality of a titanium-containing feedstock. In said method, impurities in a titanium-containing feedstock that contains slag are selectively separated out and removed as chlorides, yielding a high-titanium-content feedstock. Said method is characterized in that the titanium-containing feedstock is subjected to an oxidation treatment prior to selective chlorination. Also, in this method, the oxidation treatment and the selective-chlorination treatment are performed simultaneously.
Inventors:
HORIKAWA MATSUHIDE (JP)
TANI SEIICHIRO (JP)
TANI SEIICHIRO (JP)
Application Number:
PCT/JP2014/055841
Publication Date:
September 12, 2014
Filing Date:
March 06, 2014
Export Citation:
Assignee:
TOHO TITANIUM CO LTD (JP)
International Classes:
C01G23/04; C01G23/02; C01G49/06; C22B1/02; C22B7/04; C22B34/12
Foreign References:
| JPS5382613A | 1978-07-21 | |||
| JPS49123918A | 1974-11-27 | |||
| JP2004083297A | 2004-03-18 |
Attorney, Agent or Firm:
SUENARI, Mikio (JP)
End 成 Mikio (JP)
End 成 Mikio (JP)
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