GB1368192A - Extraction of nickel or cobalt values from oxide ores - Google Patents

Extraction of nickel or cobalt values from oxide ores

Info

Publication number
GB1368192A
GB1368192A GB1362372A GB1362372A GB1368192A GB 1368192 A GB1368192 A GB 1368192A GB 1362372 A GB1362372 A GB 1362372A GB 1362372 A GB1362372 A GB 1362372A GB 1368192 A GB1368192 A GB 1368192A
Authority
GB
United Kingdom
Prior art keywords
ore
values
mineral acid
content
reduction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1362372A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vale Canada Ltd
Original Assignee
Vale Canada Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vale Canada Ltd filed Critical Vale Canada Ltd
Publication of GB1368192A publication Critical patent/GB1368192A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00Obtaining nickel or cobalt
    • C22B23/005Preliminary treatment of ores, e.g. by roasting or by the Krupp-Renn process
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1368192 Recovering Ni and Co from ores INTERNATIONAL NICKEL CO OF CANADA Ltd 23 March 1972 [14 April 1971] 13623/72 Heading C1A Ni and Co values are recovered from ferruginous oxide ores, e.g. limonite or serpentine, by (a) reducing the ore at a temperature of 500- 825‹ C. in e.g. an atmosphere of CO/CO2, to selectively reduce more Ni and Co than Fe, (b) leaching the reduced ore by forming it into an aqueous slurry with a mineral acid, e.g. H2SO4, HCl or HNO3, aerating the slurry with a free oxygen-containing gas to dissolve Ni and Co values and to ppt. Fe as Fe(OH)3 while maintaining the pH of the solution in the slurry at a pH of 2À5 by the incremental addition of mineral acid, (c) separating the Ni and Co containing solution by, e.g. filtration or countercurrent decantation. S values may be added to the ore before or during the reduction step, either in elemental form or as pyrites (FeS2), pyrrhotite, or H2S, preferably in an amount to give 0À1-2% S content in ore. SO2 may be mixed with the free oxygen-containing gas (air, O2-enriched air or O2) in an amount of 0À25-1 mole per mole Fe in solution. The mineral acid used is preferably H2SO4 since the Ni and Co values can then be recovered from the sulphate solutions formed by treating them with H2S at elevated pressure and at a temperature of 80-130‹ C. The ratio of CO/CO2 may be in the range 0À5-2À0. The ore may either be in finely divided form, e.g. 80%- 100 mesh (Tyler series), for reduction in rotary kilns, fluidized bed reactors and multihearth furnaces, or be pelletized for reduction in rotary or rotary hearth furnaces. The ore is preferably reduced at 600-725‹ C. when the Fe content is #30% (limonite) or at 700-825‹ C. when the Fe content is <30% (HIGH SIO2 ore). The leaching step may be carried out either in batch or continuous mode, the latter in a concurrent system in which both the liquids and solids flow through a series of aerated tanks.
GB1362372A 1971-04-14 1972-03-23 Extraction of nickel or cobalt values from oxide ores Expired GB1368192A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA110,345A CA946167A (en) 1971-04-14 1971-04-14 Leaching lateritic ores with dilute acids

Publications (1)

Publication Number Publication Date
GB1368192A true GB1368192A (en) 1974-09-25

Family

ID=4089364

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1362372A Expired GB1368192A (en) 1971-04-14 1972-03-23 Extraction of nickel or cobalt values from oxide ores

Country Status (8)

Country Link
JP (1) JPS5120290B1 (en)
BR (1) BR7202102D0 (en)
CA (1) CA946167A (en)
DE (1) DE2217366A1 (en)
FR (1) FR2133625B1 (en)
GB (1) GB1368192A (en)
PH (1) PH10994A (en)
ZA (1) ZA722048B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1984528A1 (en) * 2006-01-31 2008-10-29 Murrin Murrin Operations Pty Ltd Improved base metal recovery process from heap leaching

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR837609A (en) * 1938-05-06 1939-02-15 Process for obtaining nickel and cobalt from oxygenated ores, including hydrosilicates
US3141764A (en) * 1960-02-15 1964-07-21 Yawata Iron & Steel Co Treatment of iron ores containing nickel and chromium
US3318689A (en) * 1963-12-24 1967-05-09 Sherritt Gordon Mines Ltd Treatment of laterites

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1984528A1 (en) * 2006-01-31 2008-10-29 Murrin Murrin Operations Pty Ltd Improved base metal recovery process from heap leaching
EP1984528A4 (en) * 2006-01-31 2010-11-03 Murrin Murrin Operations Pty Improved base metal recovery process from heap leaching

Also Published As

Publication number Publication date
BR7202102D0 (en) 1973-06-05
FR2133625A1 (en) 1972-12-01
JPS5120290B1 (en) 1976-06-24
PH10994A (en) 1977-10-20
ZA722048B (en) 1972-12-27
AU4064372A (en) 1973-05-17
CA946167A (en) 1974-04-30
FR2133625B1 (en) 1974-12-13
DE2217366A1 (en) 1972-10-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees