Title:
含有する炭素及び硫黄の濃度を低減するニッケル粉の製造方法
Document Type and Number:
Japanese Patent JP6406613
Kind Code:
B2
Abstract:
Provided a production method for reducing the content level of sulfur and carbon which are impurities in nickel powder to improve the quality of nickel powder produced by a complexing reduction method. The method of producing nickel powder having low carbon and sulfur concentrations includes: a complexing treatment of adding a complexing agent to a nickel sulfate aqueous solution to form a solution containing nickel complex ions; maintaining the solution containing nickel complex ions at a solution temperature of 150 to 250°C in a pressure vessel and blowing hydrogen gas into the solution containing nickel complex ions to perform hydrogen reduction to produce nickel powder; washing the nickel powder with water; and then roasting the nickel powder washed with water in a mixed gas atmosphere of nitrogen and hydrogen.
Inventors:
Yoshichi Ozaki
Shinichi Hegori
Kazuyuki Takaishi
Osamu Ikeda
Hideki Ohara
Yoneyama Tomoaki
Yohei Kudo
Shinichi Hegori
Kazuyuki Takaishi
Osamu Ikeda
Hideki Ohara
Yoneyama Tomoaki
Yohei Kudo
Application Number:
JP2014167904A
Publication Date:
October 17, 2018
Filing Date:
August 20, 2014
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
B22F9/26; B22F1/00; C22B23/00
Domestic Patent References:
| JP49074160A | ||||
| JP2003514111A | ||||
| JP10509213A |
Foreign References:
| WO2008001741A1 |
Other References:
日本化学会 編,化学便覧 基礎編 改訂5版,日本,丸善出版,2004年 2月,第9章, II-151頁, 表9.32
Attorney, Agent or Firm:
Yoshitaka Oshida