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Title:
METHOD FOR PRODUCING NICKEL SULFIDE AND HYDROMETALLURGICAL METHOD FOR NICKEL OXIDE ORE
Document Type and Number:
WIPO Patent Application WO/2016/139858
Kind Code:
A1
Abstract:
Provided is a method for producing nickel sulfide from an acidic sulfuric acid solution containing nickel, which is capable of suppressing particle diameters of nickel sulfide obtained thereby. The present invention is a method for producing nickel sulfide by causing a sulfurization reaction by blowing a hydrogen sulfide gas into an acidic sulfuric acid solution containing nickel, wherein: nickel sulfide having particle diameters of 5-20 μm and serving as seed crystals is added into an acidic sulfuric acid solution having a nickel concentration of 0.5-5.0 g/L in an amount of 40-500% by mass relative to the amount of nickel contained in the acidic sulfuric acid solution; and a hydrogen sulfide gas is blown into the acidic sulfuric acid solution, into which the seed crystals have been added, while setting the amount of the hydrogen sulfide gas blown in to be within the range of 0.30-0.85 Nm3/kg-Ni.

Inventors:
NAKAMURA, Shinichiro (C/O SUMITOMO METAL MINING CO. LTD, 11-3, Shimbashi 5-chome, Minato-k, Tokyo 16, 〒1058716, JP)
NAKAI, Osamu (C/O SUMITOMO METAL MINING CO. LTD, 11-3, Shimbashi 5-chome, Minato-k, Tokyo 16, 〒1058716, JP)
MITSUI, Hiroyuki (C/O SUMITOMO METAL MINING CO. LTD, 11-3, Shimbashi 5-chome, Minato-k, Tokyo 16, 〒1058716, JP)
SHIBAYAMA, Keisuke (C/O SUMITOMO METAL MINING CO. LTD, 11-3, Shimbashi 5-chome, Minato-k, Tokyo 16, 〒1058716, JP)
Application Number:
JP2015/083794
Publication Date:
September 09, 2016
Filing Date:
December 01, 2015
Export Citation:
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Assignee:
SUMITOMO METAL MINING CO., LTD. (11-3, Shimbashi 5-chome Minato-k, Tokyo 16, 〒1058716, JP)
International Classes:
C22B23/00; C22B3/04; C22B3/44
Foreign References:
JP2005350766A2005-12-22
JP2012031446A2012-02-16
JP2010031302A2010-02-12
Other References:
See also references of EP 3266885A4
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki et al. (Sapia Tower, 1-7-12 Marunouchi, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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