METHOD FOR MANUFACTURING NICKEL POWDER, AND METHOD FOR OPERATING REACTION FACILITY

Title:

METHOD FOR MANUFACTURING NICKEL POWDER, AND METHOD FOR OPERATING REACTION FACILITY

Document Type and Number:

WIPO Patent Application WO/2017/056626

Kind Code:

A1

Abstract:

Provided is a method for manufacturing nickel powder whereby a reduction in production efficiency due to abrasion of a flash vessel connected to a pressurized container can be suppressed when nickel powder is generated using the pressurized container and subsequently recovered. The method for manufacturing nickel powder pertaining to the present invention comprises charging a pressurized container with a nickel sulfate ammine complex solution and seed crystals, adding hydrogen gas to the pressurized container, and reducing the nickel included in the nickel sulfate ammine complex solution, wherein, when a nickel powder slurry obtained in the pressurized container is extracted to a flash vessel connected to the pressurized container, the slurry is extracted to the flash vessel while the supply rate of the nickel ammine complex solution to the pressurized container and/or the extraction rate of the nickel slurry from the pressurized container is controlled so that the liquid level in the pressurized container is in a fixed range.

Inventors:

DOI YASUO (JP)
TAKAISHI KAZUYUKI (JP)
YAMAGUMA RYOMA (JP)
OZAKI YOSHITOMO (JP)
HEGURI SHIN-ICHI (JP)

Application Number:

PCT/JP2016/070398

Publication Date:

April 06, 2017

Filing Date:

July 11, 2016

Export Citation:

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Assignee:

SUMITOMO METAL MINING CO (JP)

International Classes:

B22F9/24; C22B3/44; C22B23/00

Foreign References:

JP2015140480A	2015-08-03
JPS52119415A	1977-10-06
JP2014240524A	2014-12-25

Other References: