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WO2007092994A1 - Traitement de minerai de laterite - Google Patents

Traitement de minerai de laterite Download PDF

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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
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.)
Ceased
Application number
PCT/AU2007/000149
Other languages
English (en)
Inventor
John Joseph Andreazza
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.)
Andreazza Consulting Pty Ltd
Original Assignee
Andreazza Consulting Pty 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
Priority claimed from AU2006900739A external-priority patent/AU2006900739A0/en
Application filed by Andreazza Consulting Pty Ltd filed Critical Andreazza Consulting Pty Ltd
Priority to AU2007215378A priority Critical patent/AU2007215378A1/en
Priority to US12/279,292 priority patent/US20090217786A1/en
Priority to CA002640550A priority patent/CA2640550A1/fr
Publication of WO2007092994A1 publication Critical patent/WO2007092994A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

L'invention concerne un procédé de lixiviation de métaux à partir de minerais de latérite hautement oxydés. Le minerai est mélangé avec un milieu aqueux acide, de préférence une solution d'acide sulfurique et le mélange résultant est traité avec un agent de réduction soufré de manière à réduire les espèces minérales contenant du cobalt, du nickel ou du manganèse. L'agent de réduction soufré peut être une solution aqueuse de dioxyde de soufre ou, plus préférablement le dioxyde de soufre est généré in situ par la réduction du sel de sulfite de métaux alcalins. Le procédé est réalisé à température et pression ambiantes, l'espèce minérale étant dissoute, puis récupérée.
PCT/AU2007/000149 2006-02-15 2007-02-14 Traitement de minerai de laterite Ceased WO2007092994A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2007215378A AU2007215378A1 (en) 2006-02-15 2007-02-14 Processing of laterite ore
US12/279,292 US20090217786A1 (en) 2006-02-15 2007-02-14 Processing of laterite ore
CA002640550A CA2640550A1 (fr) 2006-02-15 2007-02-14 Traitement de minerai de laterite

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 (fr) 2007-08-23

Family

ID=38371107

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2007/000149 Ceased WO2007092994A1 (fr) 2006-02-15 2007-02-14 Traitement de minerai de laterite

Country Status (4)

Country Link
US (1) US20090217786A1 (fr)
AU (1) AU2007215378A1 (fr)
CA (1) CA2640550A1 (fr)
WO (1) WO2007092994A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009079715A1 (fr) * 2007-12-24 2009-07-02 Bhp Billiton Ssm Development Pty Ltd Procédé de lixiviation sélective du cobalt présent dans des minerais latéritiques
WO2011018550A1 (fr) * 2009-08-11 2011-02-17 Outotec Oyj Procédé de lixiviation d’un minerai contenant du cuivre et du cobalt
WO2014000023A1 (fr) * 2012-06-29 2014-01-03 Metaleach Limited Procédé de récupération de cobalt à partir de minerais contenant du cobalt
US20220074018A1 (en) * 2018-12-21 2022-03-10 Umicore Process for the recovery of metals from polymetallic nodules

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2854393A1 (fr) * 2014-03-20 2015-09-20 Dundee Sustainable Technologies Inc. Recuperation de nickel et de cobalt de laterites par sulfatation assistee par ultrasons
CN112823027A (zh) * 2018-07-24 2021-05-18 青春生命科学公司 将蛋白质和编码所述蛋白质的基因递送至活细胞的脂质体的应用

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR890002035B1 (ko) * 1985-01-22 1989-06-08 한국과학기술원 저품위 라레라이트광으로부터 니켈의 침출방법
US5378262A (en) * 1994-03-22 1995-01-03 Inco Limited Process for the extraction and separation of nickel and/or cobalt
WO1996041025A1 (fr) * 1995-06-07 1996-12-19 Pacific Nickel Corp. Procede d'extraction du nickel et du cobalt contenus dans du minerai de laterite
WO1997030181A1 (fr) * 1996-02-17 1997-08-21 Zeneca Limited Extraction de cobalt et/ou de nickel d'une solution d'alimentation aqueuse
WO2001032943A2 (fr) * 1999-11-03 2001-05-10 Bhp Minerals International, Inc. Processus de lixiviation a pression atmospherique permettant de recuperer du nickel et du cobalt de limonite et de minerais saprolithiques
WO2003080878A1 (fr) * 2002-03-13 2003-10-02 Council Of Scientific And Industrial Research Procede de recuperation de nickel a partir d'un catalyseur use
WO2003093517A1 (fr) * 2002-04-29 2003-11-13 Qni Technology Pty Ltd Procede de lixivation a pression atmospherique de minerais de nickel lateritiques
WO2004031422A1 (fr) * 2002-10-01 2004-04-15 European Nickel Plc Metaux de base a lixivation en tas de minerais oxydes
WO2006029499A1 (fr) * 2004-08-02 2006-03-23 Skye Resources Inc. Procede permettant de recuperer du nickel et du cobalt a partir de minerais de laterite par combinaison de lixiviation a pression atmospherique et a pression moderee

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR890002035B1 (ko) * 1985-01-22 1989-06-08 한국과학기술원 저품위 라레라이트광으로부터 니켈의 침출방법
US5378262A (en) * 1994-03-22 1995-01-03 Inco Limited Process for the extraction and separation of nickel and/or cobalt
WO1996041025A1 (fr) * 1995-06-07 1996-12-19 Pacific Nickel Corp. Procede d'extraction du nickel et du cobalt contenus dans du minerai de laterite
WO1997030181A1 (fr) * 1996-02-17 1997-08-21 Zeneca Limited Extraction de cobalt et/ou de nickel d'une solution d'alimentation aqueuse
WO2001032943A2 (fr) * 1999-11-03 2001-05-10 Bhp Minerals International, Inc. Processus de lixiviation a pression atmospherique permettant de recuperer du nickel et du cobalt de limonite et de minerais saprolithiques
WO2003080878A1 (fr) * 2002-03-13 2003-10-02 Council Of Scientific And Industrial Research Procede de recuperation de nickel a partir d'un catalyseur use
WO2003093517A1 (fr) * 2002-04-29 2003-11-13 Qni Technology Pty Ltd Procede de lixivation a pression atmospherique de minerais de nickel lateritiques
WO2004031422A1 (fr) * 2002-10-01 2004-04-15 European Nickel Plc Metaux de base a lixivation en tas de minerais oxydes
WO2006029499A1 (fr) * 2004-08-02 2006-03-23 Skye Resources Inc. Procede permettant de recuperer du nickel et du cobalt a partir de minerais de laterite par combinaison de lixiviation a pression atmospherique et a pression moderee

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199018, Derwent World Patents Index; Class M28, AN 1990-137260, XP003016294 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009079715A1 (fr) * 2007-12-24 2009-07-02 Bhp Billiton Ssm Development Pty Ltd Procédé de lixiviation sélective du cobalt présent dans des minerais latéritiques
US7988938B2 (en) 2007-12-24 2011-08-02 Bhp Billiton Ssm Development Pty Ltd. Selectively leaching cobalt from lateritic ores
WO2011018550A1 (fr) * 2009-08-11 2011-02-17 Outotec Oyj Procédé de lixiviation d’un minerai contenant du cuivre et du cobalt
WO2014000023A1 (fr) * 2012-06-29 2014-01-03 Metaleach Limited Procédé de récupération de cobalt à partir de minerais contenant du cobalt
AU2013202009B2 (en) * 2012-06-29 2015-03-19 CAPSA Metals Pty Ltd Method For Recovering Cobalt from Cobalt-Containing Ores
US20220074018A1 (en) * 2018-12-21 2022-03-10 Umicore Process for the recovery of metals from polymetallic nodules
US12168812B2 (en) * 2018-12-21 2024-12-17 Umicore Process for the recovery of metals from polymetallic nodules

Also Published As

Publication number Publication date
CA2640550A1 (fr) 2007-08-23
US20090217786A1 (en) 2009-09-03
AU2007215378A1 (en) 2007-08-23

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