Title:
METHOD FOR MANUFACTURING HIGH DENSITY NICKEL POWDER
Document Type and Number:
WIPO Patent Application WO/2017/073578
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a high density nickel powder, wherein the particle diameter of the nickel powder is controlled, particularly such that the median diameter is 100-160µm. This method for manufacturing a nickel powder includes an initial operation in which a nickel ammine complex liquid solution containing nickel at a concentration of 5-75g/L is placed, along with 5-200g of a seed crystal per 1L of the liquid solution, into a pressure container having an agitator and warmed, then hydrogen gas is blown into the pressure container, the hydrogen causes a reduction reaction, and the nickel in the nickel ammine complex liquid solution is obtained as a nickel powder. The method for manufacturing a nickel powder is characterized in that, after this initial operation, a prescribed operation A is repeated at least once in order to obtain a nickel powder having a median diameter of 100-160µm and a bulk density of 1-4.5g/cm3.
Inventors:
OHARA HIDEKI (JP)
OZAKI YOSHITOMO (JP)
HEGURI SHIN-ICHI (JP)
TAKAISHI KAZUYUKI (JP)
IKEDA OSAMU (JP)
YONEYAMA TOMOAKI (JP)
KUDO YOHEI (JP)
OZAKI YOSHITOMO (JP)
HEGURI SHIN-ICHI (JP)
TAKAISHI KAZUYUKI (JP)
IKEDA OSAMU (JP)
YONEYAMA TOMOAKI (JP)
KUDO YOHEI (JP)
Application Number:
PCT/JP2016/081632
Publication Date:
May 04, 2017
Filing Date:
October 25, 2016
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
B22F9/26; H01B13/00; B22F1/05; H01B5/00; H01M4/52
Domestic Patent References:
| WO2015115427A1 | 2015-08-06 | |||
| WO2015146989A1 | 2015-10-01 |
Foreign References:
| JP5796696B1 | 2015-10-21 |
Other References:
See also references of EP 3369500A4
Attorney, Agent or Firm:
OSHIDA Yoshitaka (JP)
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