WO2007092994A1 - Processing of laterite ore - Google Patents
Processing of laterite ore Download PDFInfo
- Publication number
- WO2007092994A1 WO2007092994A1 PCT/AU2007/000149 AU2007000149W WO2007092994A1 WO 2007092994 A1 WO2007092994 A1 WO 2007092994A1 AU 2007000149 W AU2007000149 W AU 2007000149W WO 2007092994 A1 WO2007092994 A1 WO 2007092994A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- per cent
- ore
- range
- nickel
- manganese
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
- C22B23/043—Sulfurated acids or salts thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B47/00—Obtaining manganese
- C22B47/0018—Treating ocean floor nodules
- C22B47/0045—Treating ocean floor nodules by wet processes
- C22B47/0054—Treating ocean floor nodules by wet processes leaching processes
- C22B47/0063—Treating ocean floor nodules by wet processes leaching processes with acids or salt solutions
Definitions
- the present invention relates the processing of laterite ore.
- HPAL high-pressure acid leaching
- the processing of nickel laterites by the above method is complex, costly, time consuming and involves high energy consumption.
- the present invention attempts to overcome at least in part the aforementioned disadvantages
- Naturally occurring nickel laterites are derived from peridotite rocks containing olivine
- These laterite deposits can be divided into three zones at increasing depth from the surface.
- the three zones are the limonite zone, the serpentinite zone, and the garnierite zone.
- the zone of interest in this invention is the limonite zone.
- Limonite zones are typically
- Asbolane has the general formula:
- the present invention proposes that highly oxidised laterite ores, preferably containing asbolane, are treated by the reduction of the mineral species by a sulfur reducing agent in an aqueous acidic medium.
- the present invention is envisaged to be used where the asbolane ore is preferably made up of between 0.1-10 per cent cobalt by weight, 40-80 per cent manganese oxide by weight and 0.1-20 per cent nickel by weight. More preferably the asbolane ore is made up of between 2-5 per cent cobalt by weight, 50-70 per cent manganese oxide by weight and 5-15 per cent nickel by weight.
- the ore may preferably be ground to a particle size in the range of 50 to 600 mesh, more
- This ground ore is admixed with, such as by being added to, an
- aqueous medium Preferably the aqueous medium may be a dilute solution of mineral
- the medium has a low pH, more preferably a pH less than 2.0.
- the sulfur reducing agent may be added directly to the medium in the form of gaseous sulfur dioxide, or an aqueous solution thereof.
- the amount of sulfur dioxide is preferably
- the sulfur dioxide may be added incrementally or all at once.
- the sulfur reducing agent is generated in situ by the reduction of an alkali metal sulfite salt, preferably sodium sulfite through the reaction:
- the amount of sulfite salt may preferably be in the range of 10 to 40 per cent by weight of the ore.
- the sulfite salt may be added to the medium containing the asbolane ore either incrementally or all at once.
- the nickel, cobalt and manganese in the ore are solubilised in the aqueous medium as a result of a reduction of the mineral components by the sulfur reducing agent.
- the treatment time may be in the range of 20 minutes to 20 hours, preferably in the range of 30 minutes to 10 hours.
- the treatment temperature may preferably be in the range of 20 to 5O 0 C.
- the pressure is less than 2 atmospheres, more preferably the pressure is ambient.
- the process of the present invention may be performed in sealed reactors designed to contain sulphur dioxide or any other off gases from venting to atmosphere.
- the reactors preferably contain a stirring mechanism to maintain the slurry in suspension.
- the reactors may contain baffles to reduce bypass or short circuiting' the reactor residence volume.
- the nickel, cobalt and manganese can then be recovered by known processes.
- the soluble metal salts may be recovered by ionic exchange to produce nickel sulphate hexahydrate, cobalt suylphate hexahydrate and manganese sulphate.
- the sulfur reducing agent may preferably be generated in situ by the reduction of an alkali metal metabisulfite salt, preferably sodium metabisulfite through the reaction: S 2 O 5 2" + 2H + 2SO 2 + H 2 O
- the amount of metabisulfite salt may preferably be in the range of 5 to 30 per cent by
- the metabisulfite salt may be added to the medium containing the
- the ore used had the following composition of elements of interest.
- the percentage of cobalt, manganese, nickel and iron in the highly oxidised laterite ore sample was 0.688, 4.35, 0.996 and 38.1 per cent by weight respectively.
- Example 1 This example illustrates the rate of leaching over a 24 hour period. 50 g of asbolane ore
- the optimal contact time is under 10 hours.
- This example illustrates the effect of increasing temperature and decreasing amounts of Na 2 SO 3 in the reaction with respect to Example 1.
- 5O g of asbolane ore was admixed with 50OmL of 0.2M sulfuric acid and 1O g OfNa 2 SO 3 added incrementally. The experiment was conducted at 4O 0 C and ambient pressure. Samples were taken at 0, 3, 6, 9 and 24 hours and analysed for their cobalt, nickel, iron and manganese concentrations.
- Example 2 The amount of iron however was 1.4 per cent in Example 1 compared with 2.2 per cent in Example 2.
- Example 3 It may be seen from Example 3 that a selective recovery of nickel, manganese and cobalt may be achieved by leaching with sulfur dioxide in an acid medium. The efficiency of the leaching increased with the increasing concentration of sulfur dioxide. The quantities of
- This example illustrates the effect of adding Na 2 SO 3 all at once at the start of the reaction rather than incrementally during the reaction, as performed in Example 1.
- 50 g of asbolane ore was admixed with 500 mL of 0.2M sulfuric acid and 1O g OfNa 2 SO 3 , adding all the Na 2 SO 3 at the start of the reaction.
- the experiment was conducted at 25 0 C and ambient pressure. Samples were taken at 0, 30, 60, 110, 150, and 190 minutes and
- Example 5 This examples illustrates the effect that the particle size of the ore has on the efficiency of
- Samples of the asbolane ore were crushed and separated into sizes ranges, namely 75- 104 ⁇ , 104 - 152 ⁇ , 152 - 21 l ⁇ , 211 - 295 ⁇ , 295 - 422 ⁇ , 422 - 599 ⁇ . Samples of the ore from each size fraction were then admixed with 500 niL of 0.2M
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/279,292 US20090217786A1 (en) | 2006-02-15 | 2007-02-14 | Processing of laterite ore |
AU2007215378A AU2007215378A1 (en) | 2006-02-15 | 2007-02-14 | Processing of laterite ore |
CA002640550A CA2640550A1 (en) | 2006-02-15 | 2007-02-14 | Processing of laterite ore |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2006900739A AU2006900739A0 (en) | 2006-02-15 | Processing of nickel laterite ore | |
AU2006900739 | 2006-02-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007092994A1 true WO2007092994A1 (en) | 2007-08-23 |
Family
ID=38371107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2007/000149 WO2007092994A1 (en) | 2006-02-15 | 2007-02-14 | Processing of laterite ore |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090217786A1 (en) |
AU (1) | AU2007215378A1 (en) |
CA (1) | CA2640550A1 (en) |
WO (1) | WO2007092994A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009079715A1 (en) * | 2007-12-24 | 2009-07-02 | Bhp Billiton Ssm Development Pty Ltd | Selectively leaching cobalt from lateritic ores |
WO2011018550A1 (en) * | 2009-08-11 | 2011-02-17 | Outotec Oyj | Method for leaching of ore containing copper and cobalt |
WO2014000023A1 (en) * | 2012-06-29 | 2014-01-03 | Metaleach Limited | Method for recovering cobalt from cobalt-containing ores |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2854393A1 (en) * | 2014-03-20 | 2015-09-20 | Dundee Sustainable Technologies Inc. | Recovery of nickel and cobalt from lateries by sonic assisted sulfatation |
CN112823027A (en) * | 2018-07-24 | 2021-05-18 | 青春生命科学公司 | Use of liposomes for delivering proteins and genes encoding said proteins to living cells |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR890002035B1 (en) * | 1985-01-22 | 1989-06-08 | 한국과학기술원 | Leaching method of ni from the low fineness ore |
US5378262A (en) * | 1994-03-22 | 1995-01-03 | Inco Limited | Process for the extraction and separation of nickel and/or cobalt |
WO1996041025A1 (en) * | 1995-06-07 | 1996-12-19 | Pacific Nickel Corp. | Process for extraction of nickel and cobalt from laterite ores |
WO1997030181A1 (en) * | 1996-02-17 | 1997-08-21 | Zeneca Limited | Extraction of cobalt and/or nickel from an aqueous feed solution |
WO2001032943A2 (en) * | 1999-11-03 | 2001-05-10 | Bhp Minerals International, Inc. | Atmospheric leach process for the recovery of nickel and cobalt from limonite and saprolite ores |
WO2003080878A1 (en) * | 2002-03-13 | 2003-10-02 | Council Of Scientific And Industrial Research | Process for the recovery of nickel from spent catalyst |
WO2003093517A1 (en) * | 2002-04-29 | 2003-11-13 | Qni Technology Pty Ltd | Atmospheric pressure leach process for lateritic nickel ore |
WO2004031422A1 (en) * | 2002-10-01 | 2004-04-15 | European Nickel Plc | Heap leaching base metals from oxide ores |
WO2006029499A1 (en) * | 2004-08-02 | 2006-03-23 | Skye Resources Inc. | Method for nickel and cobalt recovery from laterite ores by combination of atmospheric and moderate pressure leaching |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3318689A (en) * | 1963-12-24 | 1967-05-09 | Sherritt Gordon Mines Ltd | Treatment of laterites |
US6471743B1 (en) * | 1999-02-19 | 2002-10-29 | Mbx Systems, Inc. | Methods for leaching of ores |
-
2007
- 2007-02-14 US US12/279,292 patent/US20090217786A1/en not_active Abandoned
- 2007-02-14 CA CA002640550A patent/CA2640550A1/en not_active Abandoned
- 2007-02-14 WO PCT/AU2007/000149 patent/WO2007092994A1/en active Application Filing
- 2007-02-14 AU AU2007215378A patent/AU2007215378A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR890002035B1 (en) * | 1985-01-22 | 1989-06-08 | 한국과학기술원 | Leaching method of ni from the low fineness ore |
US5378262A (en) * | 1994-03-22 | 1995-01-03 | Inco Limited | Process for the extraction and separation of nickel and/or cobalt |
WO1996041025A1 (en) * | 1995-06-07 | 1996-12-19 | Pacific Nickel Corp. | Process for extraction of nickel and cobalt from laterite ores |
WO1997030181A1 (en) * | 1996-02-17 | 1997-08-21 | Zeneca Limited | Extraction of cobalt and/or nickel from an aqueous feed solution |
WO2001032943A2 (en) * | 1999-11-03 | 2001-05-10 | Bhp Minerals International, Inc. | Atmospheric leach process for the recovery of nickel and cobalt from limonite and saprolite ores |
WO2003080878A1 (en) * | 2002-03-13 | 2003-10-02 | Council Of Scientific And Industrial Research | Process for the recovery of nickel from spent catalyst |
WO2003093517A1 (en) * | 2002-04-29 | 2003-11-13 | Qni Technology Pty Ltd | Atmospheric pressure leach process for lateritic nickel ore |
WO2004031422A1 (en) * | 2002-10-01 | 2004-04-15 | European Nickel Plc | Heap leaching base metals from oxide ores |
WO2006029499A1 (en) * | 2004-08-02 | 2006-03-23 | Skye Resources Inc. | Method for nickel and cobalt recovery from laterite ores by combination of atmospheric and moderate pressure leaching |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Week 199018, Derwent World Patents Index; Class M28, AN 1990-137260, XP003016294 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009079715A1 (en) * | 2007-12-24 | 2009-07-02 | Bhp Billiton Ssm Development Pty Ltd | Selectively leaching cobalt from lateritic ores |
US7988938B2 (en) | 2007-12-24 | 2011-08-02 | Bhp Billiton Ssm Development Pty Ltd. | Selectively leaching cobalt from lateritic ores |
WO2011018550A1 (en) * | 2009-08-11 | 2011-02-17 | Outotec Oyj | Method for leaching of ore containing copper and cobalt |
WO2014000023A1 (en) * | 2012-06-29 | 2014-01-03 | Metaleach Limited | Method for recovering cobalt from cobalt-containing ores |
AU2013202009B2 (en) * | 2012-06-29 | 2015-03-19 | CAPSA Metals Pty Ltd | Method For Recovering Cobalt from Cobalt-Containing Ores |
Also Published As
Publication number | Publication date |
---|---|
AU2007215378A1 (en) | 2007-08-23 |
US20090217786A1 (en) | 2009-09-03 |
CA2640550A1 (en) | 2007-08-23 |
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