Title:
NICKEL POWDER PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/069067
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a nickel powder production method capable of obtaining a low-cost, high-performance nickel powder, even when a wet method is used. A nickel powder production method having a crystallization step for obtaining a nickel crystal powder by a reductive reaction in a reaction liquid containing at least a water-soluble nickel salt, a metal salt more noble than nickel, a reducing agent, an alkali hydroxide, an amine compound, and water, the method characterized in that the reducing agent to be mixed in the crystallization step is hydrazine, the amine compound is an autolysis inhibitor of hydrazine, contains two or more primary amino groups in a molecule, or contains one primary amino substrate and one or more secondary amino groups in molecule, and the ratio of the number of moles of the amine compound in relation to the number of moles of nickel in the reaction liquid is in the range of 0.01 mol% to 5 mol%.
Inventors:
ISHII JUNJI (JP)
TANAKA HIROYUKI (JP)
MURAKAMI SHINGO (JP)
KUMAGAI YUKI (JP)
YUKINOBU MASAYA (JP)
MATSUMURA YOSHIAKI (JP)
TANAKA HIROYUKI (JP)
MURAKAMI SHINGO (JP)
KUMAGAI YUKI (JP)
YUKINOBU MASAYA (JP)
MATSUMURA YOSHIAKI (JP)
Application Number:
PCT/JP2016/080603
Publication Date:
April 27, 2017
Filing Date:
October 14, 2016
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
B22F9/24; B22F1/052; H01B13/00; B22F1/145; C22C19/03
Domestic Patent References:
| WO2008001741A1 | 2008-01-03 | |||
| WO2012060776A1 | 2012-05-10 |
Foreign References:
| JP2004211191A | 2004-07-29 | |||
| JP2005097729A | 2005-04-14 | |||
| JP2015161025A | 2015-09-07 | |||
| JPH11229006A | 1999-08-24 |
Attorney, Agent or Firm:
KOIKE, Akira et al. (JP)
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