METHOD FOR PRODUCING TITANIUM OXIDE CONTAINING SLAG

Title:

METHOD FOR PRODUCING TITANIUM OXIDE CONTAINING SLAG

Document Type and Number:

WIPO Patent Application WO/2004/033730

Kind Code:

A1

Abstract:

A method for producing a titanium containing slag, which comprises heating a raw material mixture containing a titanium oxide, an iron oxide and a carbonaceous reducing agent or another raw material mixture further containing a calcium oxide source in addition to the above in a reducing furnace to reduce the iron oxide in the mixture to a reduced iron, supplying the product to a heating type melting furnace, heating the product in the melting furnace to melt said reduced iron and separate it from a slag containing a titanium oxide, and discharge the resultant titanium oxide containing slag to the outside of the furnace for recovery. The method can be used for producing a titanium oxide containing slag from a material containing a titanium oxide and an iron oxide with good efficiency, while suppressing the reduction of titanium dioxide and minimizing electric power consumption.

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Inventors:

TANAKA HIDETOSHI (JP)
MIYAHARA ITSUO (JP)
UEMURA HIROSHI (JP)
HARADA TAKAO (JP)
KOBAYASHI ISAO (JP)
SUGITATSU HIROSHI (JP)

Application Number:

PCT/JP2003/011003

Publication Date:

April 22, 2004

Filing Date:

August 29, 2003

Export Citation:

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Assignee:

KOBE STEEL LTD (JP)
TANAKA HIDETOSHI (JP)
MIYAHARA ITSUO (JP)
UEMURA HIROSHI (JP)
HARADA TAKAO (JP)
KOBAYASHI ISAO (JP)
SUGITATSU HIROSHI (JP)

International Classes:

C01G23/04; C21B5/02; C21B11/08; C21B13/00; C21B13/10; C21B13/14; C21B15/02; C21C5/54; C22B7/04; C22B34/12; F27B9/02; (IPC1-7): C21B5/02

Foreign References:

JP2001064733A	2001-03-13
US20010052272A1	2001-12-20
JPH01252712A	1989-10-09
US20020022208A1	2002-02-21
US20020053307A1	2002-05-09
US20020033075A1	2002-03-21

Other References: