PROCESS FOR PRODUCTION OF FERRONICKEL SMELTING RAW MATERIAL FROM LOW GRADE LATERITIC NICKEL ORE

Title:

PROCESS FOR PRODUCTION OF FERRONICKEL SMELTING RAW MATERIAL FROM LOW GRADE LATERITIC NICKEL ORE

Document Type and Number:

WIPO Patent Application WO/2012/014685

Kind Code:

A1

Abstract:

Provided are: a process for producing ferronickel from a nickel sulfide material produced by a wet refining of a lateritic nickel ore or a scrap or a work-in-process material or from a mixed sulfide material containing nickel and cobalt. A process for producing a ferronickel raw material, which can produce the ferronickel raw material from a nickel sulfide material or a mixed sulfide material containing a nickel sulfide material and a cobalt sulfide material, and which is characterized by carrying out a treatment through the following steps: (1) a re-dissolution step, (2) an iron removal step, (3) a solvent extraction step, (4) a hydroxylation step, (5) a roasting step, and (6) a washing/fritting step.

Inventors:

KOBAYASHI HIROSHI (JP)
NAKAI OSAMU (JP)
SHIBAYAMA KEISUKE (JP)
NAKAI TAKAYUKI (JP)
OZAKI YOSHITOMO (JP)
TOKI NORIHISA (JP)
TAKAHASHI JUNICHI (JP)
TAN TOSHIROU (JP)

Application Number:

PCT/JP2011/066016

Publication Date:

February 02, 2012

Filing Date:

July 13, 2011

Export Citation:

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Assignee:

SUMITOMO METAL MINING CO (JP)
KOBAYASHI HIROSHI (JP)
NAKAI OSAMU (JP)
SHIBAYAMA KEISUKE (JP)
NAKAI TAKAYUKI (JP)
OZAKI YOSHITOMO (JP)
TOKI NORIHISA (JP)
TAKAHASHI JUNICHI (JP)
TAN TOSHIROU (JP)

International Classes:

C22B23/00; C22B1/02; C22B1/16; C22B3/04; C22B3/20; C22B3/44; C22B7/00; C22B23/02; C22C33/04

Foreign References:

JP2004509232A	2004-03-25
JP2010501722A	2010-01-21
JP2006241529A	2006-09-14
JP2004156140A	2004-06-03
JP2008231470A	2008-10-02
JP2009046736A	2009-03-05
JP2009097076A	2009-05-07
JP2000234130A	2000-08-29
JP2010284593A	2010-12-24
JP2005350766A	2005-12-22
JP2006241529A	2006-09-14
JP2007077459A	2007-03-29

Other References: