Title:
ラテライトニッケル鉱に対する大気圧浸出方法
Document Type and Number:
Japanese Patent JP5226711
Kind Code:
B2
Abstract:
An atmospheric leach process in the recovery of nickel and cobalt from lateritic ores, said processing including the steps of: a) separating the lateritic ore into a low magnesium containing ore fraction, and a high magnesium containing ore fraction by selective mining or post mining classification; b) separately slurrying the separated ore fractions; c) leaching the low magnesium containing ore fraction with concentrated sulphuric acid as a primary leach step; and d) introducing the high magnesium content ore slurry following substantial completion of the primary leach step and precipitating iron as goethite or another low sulphate containing form of iron oxide or iron hydroxide, wherein sulphuric acid released during iron precipitation is used to leach the high magnesium ore fraction as a secondary leach step.
Inventors:
Ho Yang Liu
James Dee Gillaspie
Coralley Adele Lewis
David Newdorf
Stephen Burnett
James Dee Gillaspie
Coralley Adele Lewis
David Newdorf
Stephen Burnett
Application Number:
JP2010034191A
Publication Date:
July 03, 2013
Filing Date:
February 19, 2010
Export Citation:
Assignee:
BHP Billiton SMS Development PTT YTD
International Classes:
C22B23/00; C22B3/04; C22B3/08; C22B3/20; C22B3/42; C22B3/44
Domestic Patent References:
| JP2003514109A |
Attorney, Agent or Firm:
Kurata Masatoshi
Takakura Shigeo
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Takakura Shigeo
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Morisezo Iseki