Title:
TITANIUM POWDER AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/124325
Kind Code:
A1
Abstract:
Provided are: a titanium powder which is reduced in the hydrogen concentration, while being obtained by means of a hydrogenation-dehydrogenation method; and a method for producing this titanium powder. A titanium powder which is obtained by means of a hydrogenation-dehydrogenation method, and which is characterized in that the concentration of hydrogen contained in the titanium powder is 150 ppm or less. A method for producing a titanium powder by means of a hydrogenation-dehydrogenation method, which is characterized in that the degree of vacuum at the end of the dehydrogenation step is set to 5 × 10-2 Pa or less. The heating temperature in the dehydrogenation step may be from 450°C to 900°C (inclusive); and the heating retention time in the dehydrogenation step may be from 5 hours to 30 hours (inclusive).
Inventors:
TAKENAKA SHIGEHISA (JP)
HIRASHIMA KENJI (JP)
HIRASHIMA KENJI (JP)
Application Number:
PCT/JP2018/046423
Publication Date:
June 27, 2019
Filing Date:
December 17, 2018
Export Citation:
Assignee:
TOHO TECHNICAL SERVICE CO LTD (JP)
International Classes:
B22F9/04; B22F1/00
Foreign References:
| JPH03122205A | 1991-05-24 | |||
| JPH01139706A | 1989-06-01 | |||
| JPH05105917A | 1993-04-27 | |||
| JPH07278609A | 1995-10-24 | |||
| JP2017141492A | 2017-08-17 | |||
| CN105499589A | 2016-04-20 |
Attorney, Agent or Firm:
TAKAHASHI, HAYASHI AND PARTNER PATENT ATTORNEYS, INC. (JP)
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