WO2009033227A1 - Procédé de lixiviation en tas de limonite et de saprolite - Google Patents

Procédé de lixiviation en tas de limonite et de saprolite Download PDF

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Publication number
WO2009033227A1
WO2009033227A1 PCT/AU2008/001357 AU2008001357W WO2009033227A1 WO 2009033227 A1 WO2009033227 A1 WO 2009033227A1 AU 2008001357 W AU2008001357 W AU 2008001357W WO 2009033227 A1 WO2009033227 A1 WO 2009033227A1
Authority
WO
WIPO (PCT)
Prior art keywords
ore
process according
heap
nickel
limonitic
Prior art date
Application number
PCT/AU2008/001357
Other languages
English (en)
Inventor
Adam Sean Moroney
Omar Yesid Caceres Hernandez
Houyuan Liu
Original Assignee
Bhp Billiton Ssm Development 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 AU2007904992A external-priority patent/AU2007904992A0/en
Application filed by Bhp Billiton Ssm Development Pty Ltd filed Critical Bhp Billiton Ssm Development Pty Ltd
Priority to US12/676,954 priority Critical patent/US20100282024A1/en
Priority to CN2008801068362A priority patent/CN101802234B/zh
Priority to AU2008299587A priority patent/AU2008299587B2/en
Publication of WO2009033227A1 publication Critical patent/WO2009033227A1/fr

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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2406—Binding; Briquetting ; Granulating pelletizing
    • 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
    • C22B23/005—Preliminary treatment of ores, e.g. by roasting or by the Krupp-Renn process
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/08—Sulfuric acid, other 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Definitions

  • Laterite ores are potentially the world's largest source of nickel and cobalt.
  • most deposits of nickel/cobalt laterites contain three major zones based on morphology, mineralogy and chemical composition. These three zones, from the base to the surface, atop weathered parent bedrock materials are the saprolite zone, the transition zone and the limonite zone. There is generally a large variation in total thickness of the laterite deposit, as well as individual zone thickness.
  • the less-weathered, coarse, siliceous and higher nickel content saprolites tend to be commercially treated by a pyro metallurgical process involving roasting and electrical smelting techniques to produce ferro nickel.
  • the power requirements and high iron to nickel ore ratio for the lower nickel content limonite blends make this processing route too expensive.
  • Limonite ores are normally commercially treated by a combination of pyrometallurgical and hydrometallurgical processes, such as the High Pressure Acid Leach (HPAL) process, or the reduction roast - ammonium carbonate leach process.
  • HPAL High Pressure Acid Leach
  • U.S. Patent 5,571 ,308 describes a process for heap leaching of high magnesium containing laterite ore such as saprolite.
  • the patent points out that the fine saprolite exhibits poor permeability, and as a solution to this, pelletisation or agglomeration of the ore is necessary to ensure distribution of the leach solution through the heap.
  • One problem hindering the heap leaching of nickel and cobalt containing nickeliferous oxidic ores is the substantial clay or fine-particle component of such ores, particularly ores which contain significant quantity of limonitic type ores.
  • the type of clay content is dependent on the parent rock and the physicochemical environment of the clay formation, but most clays have a detrimental effect on the percolation of the leach solution through the ore.
  • the mechanism could be described with "Shrinking Core Model” (SCM) with porous solid product (quartz) formation as shown in the photo of Figure 1.
  • SCM Stress Core Model
  • quartz porous solid product
  • the formation of acid-resistant quartz can act as a "backbone" within the agglomerated pellets and can strengthen and stabilize a heap that includes limonite. Consequently, the inventors have found that a heap charged with lateritic ore may be stable during acidic leach if the ratio of saprolite/limonite type ores is appropriately selected. In one embodiment, the inventors have found that a stable heap may be maintained if the limonite/saprolite blended heap includes 15%-85% wt of limonitic type ore and 15%-85% wt of saprolitic type ore.
  • the heap is subjected to a leach process by contacting a heap of the ore with a mineral acid selected from the group consisting of hydrochloric acid, sulfuric acid and/or nitric acid at an acid concentration sufficient to effect the dissolution of nickel, for example, at least about 0.1 molar (equals to 10 g/L H 2 SO 4 ).
  • a mineral acid selected from the group consisting of hydrochloric acid, sulfuric acid and/or nitric acid
  • sulfuric acid is used.
  • the aqueous leach solution may be acid supplemented fresh water, seawater or saline water.
  • the leaching is preferably carried out at a temperature of at least ambient temperature and ranging up to about 80 °C, if additional exothermic reaction such as bio-oxidation is introduced.
  • the reaction time should be sufficient to dissolve substantial amounts of nickel and some iron and magnesium to provide a pregnant solution thereof.
  • the limonite ore generally consists of goethite and/or hematite type particles and is particularly fine and dissolved with acid as shown in Eq. 1 and 2.
  • the saprolite ore is coarse silicates which volume was found unchanged during leach as shown in Eq.3 and the photo ( Figure 1 ). Accordingly there needs to be a certain quantity of saprolitic type ore within the heap in order to give the heap some structure backbone during the leaching phase.
  • the intermediate pregnant leachate solution may be divided into two fractions with the fraction having a pH of greater than 2 being removed and transferred downstream for nickel and/or cobalt recovery.
  • the acidic fraction with a pH of less than 2 may be used for the leach solution in the counter current system.
  • the nickel and cobalt rich heap leachate may be divided in a similar manner with the fraction having a pH greater than 2 being transferred for nickel and cobalt recovery, while the acidic heap leachate with a pH of less than 2 is used to leach a fresh heap in the counter current process.
  • Figure 2 shows progressive nickel extraction graphs of blended ores

Landscapes

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

Abstract

L'invention concerne un procédé pour la récupération de nickel et/ou de cobalt à partir d'un minerai latéritique par lixiviation en tas, ledit procédé comprenant les étapes consistant à : a) former un ou plusieurs tas à partir d'un gisement de minerai latéritique, ledit gisement de minerai latéritique comprenant un mélange des deux minerais de type limonitique et de type saprolitique ; b) lixivier ledit ou lesdits tas avec une solution de lixiviation ; et c) récupérer le nickel et/ou le cobalt du produit de lixiviation en tas résultant.
PCT/AU2008/001357 2007-09-13 2008-09-12 Procédé de lixiviation en tas de limonite et de saprolite WO2009033227A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/676,954 US20100282024A1 (en) 2007-09-13 2008-09-12 Limonite and Saprolite Heap Leach Process
CN2008801068362A CN101802234B (zh) 2007-09-13 2008-09-12 褐铁矿和腐泥土堆浸方法
AU2008299587A AU2008299587B2 (en) 2007-09-13 2008-09-12 Limonite and saprolite heap leach process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2007904992A AU2007904992A0 (en) 2007-09-13 Limonite and Saprolite Heap Leach Process
AU2007904992 2007-09-13

Publications (1)

Publication Number Publication Date
WO2009033227A1 true WO2009033227A1 (fr) 2009-03-19

Family

ID=40451485

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2008/001357 WO2009033227A1 (fr) 2007-09-13 2008-09-12 Procédé de lixiviation en tas de limonite et de saprolite

Country Status (5)

Country Link
US (1) US20100282024A1 (fr)
CN (1) CN101802234B (fr)
AU (1) AU2008299587B2 (fr)
CO (1) CO6270267A2 (fr)
WO (1) WO2009033227A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103131855A (zh) * 2011-11-29 2013-06-05 沈阳有色金属研究院 一种处理过渡型镍红土矿常压浸出的方法
WO2013181724A1 (fr) * 2011-06-03 2013-12-12 Vale S.A. Lixiviation sélective de métaux communs à partir de minerais latéritiques
WO2014047672A1 (fr) * 2012-09-28 2014-04-03 Direct Nickel Pty Ltd Procédé pour la récupération de métaux à partir de minerais porteurs de nickel et de concentrés

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8197575B2 (en) * 2007-12-24 2012-06-12 Bhp Billiton Ssm Development Pty Ltd. Laterite heap leaching with ferrous lixiviants
CL2011001440A1 (es) * 2010-06-15 2011-10-28 Teck Resources Ltd Proceso para recuperar cobre desde ripios de lixiviacion en pilas, que comprende mezclar dichos ripios con un material para formar una mezcla o aglomerar los ripios de la lixiviacion en pilas, y lixiviar la pila de los ripios tratados de la lixiviacion en pilas con una solucion de lixiviacion.
CN102191377A (zh) * 2011-05-06 2011-09-21 广西银亿科技矿冶有限公司 一种红土镍矿堆浸方法
CN104805282A (zh) * 2014-01-28 2015-07-29 广西银亿科技矿冶有限公司 一种红土镍矿硫酸熟化堆浸方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6312500B1 (en) * 2000-03-30 2001-11-06 Bhp Minerals International Inc. Heap leaching of nickel containing ore
WO2004031422A1 (fr) * 2002-10-01 2004-04-15 European Nickel Plc Metaux de base a lixivation en tas de minerais oxydes
US20040228783A1 (en) * 2003-05-16 2004-11-18 Jaguar Nickel Inc. Process for the recovery of value metals from material containing base metal oxides
WO2006000020A1 (fr) * 2004-06-29 2006-01-05 European Nickel Plc Lixiviation amelioree de metaux de base
WO2006029443A1 (fr) * 2004-09-17 2006-03-23 Bhp Billiton Ssm Technology Pty Ltd Production de mattes de ferronickel ou de nickel au moyen d'un procede combine d'hydrometallurgie et de pyrometallurgie
WO2006089358A1 (fr) * 2005-02-24 2006-08-31 Bhp Billiton Ssm Technology Pty Ltd Production de ferronickel
WO2006119559A1 (fr) * 2005-05-13 2006-11-16 Bhp Billiton Ssm Technology Pty Ltd Procede ameliore de lixiviation en tas de minerais oxydiques nickeliferes
EP1790739A1 (fr) * 2005-11-28 2007-05-30 Companhia Vale Do Rio Doce Procédé d'extraction de nickel, cobalt et autres métaux de base à partir de minérais de latérite par lixiviation en tas et produit contenant du nickel, cobalt et autres métaux à partir de minérais de latérite

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6261527B1 (en) * 1999-11-03 2001-07-17 Bhp Minerals International Inc. Atmospheric leach process for the recovery of nickel and cobalt from limonite and saprolite ores

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6312500B1 (en) * 2000-03-30 2001-11-06 Bhp Minerals International Inc. Heap leaching of nickel containing ore
WO2004031422A1 (fr) * 2002-10-01 2004-04-15 European Nickel Plc Metaux de base a lixivation en tas de minerais oxydes
US20040228783A1 (en) * 2003-05-16 2004-11-18 Jaguar Nickel Inc. Process for the recovery of value metals from material containing base metal oxides
WO2006000020A1 (fr) * 2004-06-29 2006-01-05 European Nickel Plc Lixiviation amelioree de metaux de base
WO2006029443A1 (fr) * 2004-09-17 2006-03-23 Bhp Billiton Ssm Technology Pty Ltd Production de mattes de ferronickel ou de nickel au moyen d'un procede combine d'hydrometallurgie et de pyrometallurgie
WO2006089358A1 (fr) * 2005-02-24 2006-08-31 Bhp Billiton Ssm Technology Pty Ltd Production de ferronickel
WO2006119559A1 (fr) * 2005-05-13 2006-11-16 Bhp Billiton Ssm Technology Pty Ltd Procede ameliore de lixiviation en tas de minerais oxydiques nickeliferes
EP1790739A1 (fr) * 2005-11-28 2007-05-30 Companhia Vale Do Rio Doce Procédé d'extraction de nickel, cobalt et autres métaux de base à partir de minérais de latérite par lixiviation en tas et produit contenant du nickel, cobalt et autres métaux à partir de minérais de latérite

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013181724A1 (fr) * 2011-06-03 2013-12-12 Vale S.A. Lixiviation sélective de métaux communs à partir de minerais latéritiques
CN103703153A (zh) * 2011-06-03 2014-04-02 淡水河谷公司 红土矿石中的选择性贱金属浸提
RU2609113C2 (ru) * 2011-06-03 2017-01-30 Вале С.А. Способ извлечения металлов из латеритовых руд
CN103131855A (zh) * 2011-11-29 2013-06-05 沈阳有色金属研究院 一种处理过渡型镍红土矿常压浸出的方法
WO2014047672A1 (fr) * 2012-09-28 2014-04-03 Direct Nickel Pty Ltd Procédé pour la récupération de métaux à partir de minerais porteurs de nickel et de concentrés
AU2013325098B2 (en) * 2012-09-28 2017-12-14 Direct Nickel Pty Ltd Method for the recovery of metals from nickel bearing ores and concentrates

Also Published As

Publication number Publication date
CN101802234B (zh) 2012-06-13
CO6270267A2 (es) 2011-04-20
US20100282024A1 (en) 2010-11-11
AU2008299587B2 (en) 2013-02-07
AU2008299587A1 (en) 2009-03-19
CN101802234A (zh) 2010-08-11

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