REACTION VESSEL FOR USE IN PRODUCING TITANIUM SPONGE, HEAT SHIELDING PLATE PROVIDED THEREIN, AND METHOD FOR PRODUCING TITANIUM SPONGE

Title:

REACTION VESSEL FOR USE IN PRODUCING TITANIUM SPONGE, HEAT SHIELDING PLATE PROVIDED THEREIN, AND METHOD FOR PRODUCING TITANIUM SPONGE

Document Type and Number:

WIPO Patent Application WO/2003/020992

Kind Code:

A1

Abstract:

A reaction vessel (A) for use in producing a high purity titanium sponge by the Kroll process, which has an inner surface of its body (10) being made of carbon steel at least at a liquid level or lower, and a heat shielding plate (30) made of carbon steel disposed between a cap (20) and a liquid level in the body (10) of the vessel, wherein at least the lower surface of the heat shielding plate is provided with a coating layer comprising a metal oxide such as TiO₂ as a main component&semi a method for producing titanium sponge which comprises preparing a bulk of titanium sponge in the reaction vessel (A), taking out the bulk from the body (10) of the vessel, dividing the bulk into a plurality of small bulks, measuring the concentrations of Fe, Ni and Cr in all of the small bulks, and regarding a small bulk having been found to have impurity contents not more than the specified values, as a regular product.

Inventors:

ARAIKE TADAO (JP)

Application Number:

PCT/JP2002/002866

Publication Date:

March 13, 2003

Filing Date:

March 25, 2002

Export Citation:

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Assignee:

SUMITOMO TITANIUM CORP (JP)
ARAIKE TADAO (JP)

International Classes:

C22B34/12; (IPC1-7): C22B34/12

Foreign References:

JPH03125056U	1991-12-18
JPS61143528A	1986-07-01
JPH09287035A	1997-11-04
JPH07258765A	1995-10-09

Attorney, Agent or Firm:

Ubukata, Motoshige (Kawaramachi 4-chome Chuo-k, Osaka-shi Osaka, JP)

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