[go: up one dir, main page]

EP1716261A1 - Procede de production d'aluminium - Google Patents

Procede de production d'aluminium

Info

Publication number
EP1716261A1
EP1716261A1 EP05706240A EP05706240A EP1716261A1 EP 1716261 A1 EP1716261 A1 EP 1716261A1 EP 05706240 A EP05706240 A EP 05706240A EP 05706240 A EP05706240 A EP 05706240A EP 1716261 A1 EP1716261 A1 EP 1716261A1
Authority
EP
European Patent Office
Prior art keywords
aluminium
solution
ionic liquid
process defined
ions
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.)
Withdrawn
Application number
EP05706240A
Other languages
German (de)
English (en)
Other versions
EP1716261A4 (fr
Inventor
Raymond Walter Shaw
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.)
Technological Resources Pty Ltd
Original Assignee
Technological Resources 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 AU2004900768A external-priority patent/AU2004900768A0/en
Application filed by Technological Resources Pty Ltd filed Critical Technological Resources Pty Ltd
Publication of EP1716261A1 publication Critical patent/EP1716261A1/fr
Publication of EP1716261A4 publication Critical patent/EP1716261A4/fr
Withdrawn legal-status Critical Current

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
    • 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
    • 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
    • C22B21/00—Obtaining aluminium
    • C22B21/0015—Obtaining aluminium by wet processes
    • 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
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • 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

  • the present invention relates to a process for producing aluminium and aluminium-containing materials .
  • aluminium-containing materials includes by way of example, alumina, aluminium hydroxide, aluminium chloride , and aluminium trihydrate .
  • the Bayer process for producing alumina from aluminium-containing feed materials such as bauxite and the Hall-Heroult process for electrolytically producing aluminium from alumina is the only commercially significant process route for producing aluminium metal from aluminium-containing feed materials. This process route is also used to produce alumina and aluminium hydroxide for other applications .
  • the present invention provides an alternative process for producing aluminium and aluminium-containing materials from aluminium-containing feed materials .
  • the present invention is based on the realisation that (a) recently discovered organic reagents that are suitable for a solvent extraction process to extract aluminium ions from an aqueous liquor into an aluminium complex and (b) an electrolytic cell based on an ionic liquid electrolyte for producing aluminium directly or indirectly from the aluminium complex is a basis of an alternative process for producing aluminium from aluminium-containing feed materials .
  • a process of producing aluminium and aluminium- containing materials from a solid aluminium-containing feed material that comprises:
  • the organic reagent may be any suitable complexing ligand, compound, polymer or ion exchange resin.
  • Suitable organic reagents are described by way of example in International application PCT/AU02/00243 in the name of Technological Resources Pty. Limited. There are a number of possible options for recovery step (c) .
  • the aluminium-containing material may comprise, by way of example, alumina, aluminium hydroxide, aluminium trihydrate, and aluminium chloride in any suitable solid form.
  • One option for recovery step (c) comprises displacing aluminium ions from the aluminium complex by contacting the aluminium complex with an aqueous solution and thereafter recovering aluminium or an aluminium- containing material .
  • the solution used in step (c) may be a more acidic solution than the initial leach liquor used in step (a) and have limited solubility for aluminium such that the aluminium ions are displaced from the aluminium complex and immediately precipitate as a solid aluminium- containing material, for example as alumina and/or aluminium hydroxide, and the solid material is thereafter recovered.
  • the solution used in step (c) may be an acidic solution such that the aluminium ions are displaced from the aluminium complex into solution and are thereafter recovered from solution.
  • the solution is a hydrochloric acid solution.
  • the hydrochloric acid solution has a pH of 1-6.
  • a solid aluminium-containing material in the form of alumina or aluminium hydroxide may be recovered from the solution by heating the solution and causing thermal dissociation to drive off water and hydrochloric acid in gaseous forms and produce alumina in a powder form.
  • alumina or aluminium hydroxide or other aluminium-containing materials that are precipitated directly from the aluminium complex or are precipitated from the solution as described above may be sold as a product or processed further to produce aluminium using the conventional Hall-Heroult process or other processes , such as processes described hereinafter.
  • the solid aluminium-containing materials may be advantageously produced with an extremely fine particle size and high purity to increase its value when used directly in applications such as making ceramics and fire retardant composite materials .
  • aluminium may be recovered from the solution used in step (c) by transferring aluminium ions into an ionic liquid and thereafter recovering aluminium from the ionic liquid.
  • ionic liquid is understood to herein to mean a liquid that substantially consists of ions and can be used in a temperature range of 0-100°C.
  • the process comprises recovering aluminium from the ionic liquid by applying a potential across an anode and a cathode positioned so that at least the cathode is in contact with the ionic liquid and depositing aluminium on the cathode.
  • the transfer of the aluminium ions into the ionic liquid may be directly from the solution into an ionic liquid in the same compartment.
  • the ionic liquid is hydrophobic with a high affinity for aluminium and is stable in the presence of water.
  • the transfer of the aluminium ions into the ionic liquid may also be indirectly from the solution.
  • the transfer may be from the solution contained in one compartment into the ionic liquid contained in another compartment via a membrane, diaphram or other suitable means that is permeable to aluminium ions and separates the compartments .
  • the driving force for the transfer of aluminium ions from the compartment containing the solution to the other compartment containing the ionic liquid can be either by concentration gradient or by having the anode in the aqueous compartment and the cathode in the ionic liquid compartment.
  • the membrane, diaphram or other suitable means that is permeable to aluminium ions is resistant to attack by the solution and the ionic liquid and is impermeable to other constituents of the solution and the ionic liquid.
  • the process may comprise producing the alumina or aluminium hydroxide or other aluminium-containing materials precipitated directly from the aluminium complex or from the solution as described above in a solid form and thereafter dissolving the solid material in the ionic liquid directly or indirectly and recovering aluminium from the ionic liquid as described above .
  • step (c) comprises displacing the aluminium ions directly from the aluminium complex by transferring aluminium ions into an ionic liquid and thereafter recovering aluminium from the ionic liquid, for example electrolytically as described above.
  • the process allows the use of a wide range of aluminium-containing materials as feed materials , including currently difficult-to-treat impure dross and waste materials from smelters, and can produce higher purity aluminium as a value added product for use in specialist applications such as capacitors and compact discs .
  • the present invention is described further by way of example with reference to the accompanying flowsheet of one embodiment of the process of the invention .
  • the process shown in the flowsheet is suitable for producing aluminium from a wide range of aluminium- containing feed materials such as bauxite, kaolin, dross, and desilication products .
  • This step comprises leaching aluminium from a suitable feed material , for example bauxite , and forming an aqueous solution containing aluminium ions .
  • leaching is accomplished using a leach liquor comprising a caustic liquor at high pH or a dilute acid at pH 3-4.
  • the leaching step does not have to be at high temperatures and pressures. Specifically, there is no requirement to achieve supersaturation to promote subsequent precipitation. This leaves open a much wider operating range of dissolution conditions, especially when using non-bauxitic feed materials .
  • Extraction comprises extracting aluminium from the leach solution using an organic reagent of the type described in International application PCT/AU02/00243.
  • the aluminium is selectively extracted and forms an aluminium complex, thereby avoiding issues of purification .
  • This step comprises stripping aluminium from the aluminium complex, ie the loaded organic phase containing the aluminium ions, by contacting the aluminium complex with a suitable solution.
  • One option is to carry out this step using a solution that is more acidic than the initial leach liquor (and may be neutral or slightly basic) and has low solubility for aluminium, whereby the aluminium is displaced from the aluminium complex and precipitates immediately as a solid aluminium-containing material .
  • Another option is to carry out this step using a moderate strength hydrochloric acid solution, whereby the hydrogen ions displace the aluminium from aluminium complex, with the result that the aluminium transfers to the hydrochloric acid solution and regenerates the organic reagent.
  • the regenerated organic reagent can be recycled to extract more aluminium.
  • Another option is to directly transfer the aluminium from the aluminium complex into an ionic liquid electrolyte .
  • One option to recover aluminium from the hydrochloric acid solution is to use thermal dissociation to drive off water and hydrochloric acid leaving a pure alumina powder for sale as a product and/or for use in electrolysis cells to produce high purity aluminium.
  • Another option to recover aluminium from the hydrochloric acid solution is to transfer the aluminium from the hydrochloric acid solution into an ionic liquid electrolyte and produce high purity aluminium metal via electrolysis of aluminium ions in the ionic liquid.
  • the form of the electrolysis step depends in part upon the nature of the ionic liquid used.
  • One approach with this option is to use a cell which is set up so that aluminium transfers from the aqueous acidic solution into the ionic liquid through an ion selective membrane .
  • Another approach with this option is to use a hydrophobic ionic liquid with a high affinity for aluminium that is stable in the presence of water and acid whereby the aluminium transfers into the ionic liquid directly.
  • This approach may be assisted by adding chemical additives to the ionic liquid to improve the aluminium affinity of the ionic liquid.
  • Chemical additives include, by way of example, complexing reagents to improve the aluminium affinity of the ionic liquid.
  • Another option is to separate the aluminium in the form of a solid aluminium-containing material such as alumina, aluminium trihydrate and/or aluminium chloride and dissolve the solid material into the ionic liquid to provide the source of aluminium.
  • the reaction at the electrolysis cell cathode produces aluminium metal .
  • the corresponding anode reaction most probably generates chlorine gas or oxygen.
  • the chlorine gas could be recycled to the process after conversion to hydrochloric acid and the oxygen that could be captured as a separate product.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

L'invention concerne un procédé de production d'aluminium et de matériaux renfermant de l'aluminium à partir d'une charge solide contenant de l'aluminium: lixiviation de cette charge avec une liqueur lixiviante et formation d'une solution aqueuse renfermant des ions d'aluminium, extraction des ions à partir de la solution par contact avec un réactif organique et chargement des ions sur le réactif puis formation d'un complexe d'aluminium, et enfin récupération de l'aluminium ou d'un matériau contenant de l'aluminium à partir du complexe.
EP05706240A 2004-02-16 2005-02-16 Procede de production d'aluminium Withdrawn EP1716261A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2004900768A AU2004900768A0 (en) 2004-02-16 Aluminium production process
PCT/AU2005/000192 WO2005078145A1 (fr) 2004-02-16 2005-02-16 Procede de production d'aluminium

Publications (2)

Publication Number Publication Date
EP1716261A1 true EP1716261A1 (fr) 2006-11-02
EP1716261A4 EP1716261A4 (fr) 2008-09-17

Family

ID=34842353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05706240A Withdrawn EP1716261A4 (fr) 2004-02-16 2005-02-16 Procede de production d'aluminium

Country Status (7)

Country Link
US (1) US20070278106A1 (fr)
EP (1) EP1716261A4 (fr)
CN (1) CN100406588C (fr)
BR (1) BRPI0507748A (fr)
CA (1) CA2556613A1 (fr)
RU (1) RU2363748C2 (fr)
WO (1) WO2005078145A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101842504B (zh) 2007-05-21 2012-11-14 奥贝特铝业有限公司 从铝土矿石中提取铝和铁的工艺
CN101457292B (zh) * 2007-12-10 2012-01-25 北京有色金属研究总院 一种利用室温离子液体回收红土镍矿生物浸出液中镍离子的工艺
US9267214B2 (en) * 2008-02-11 2016-02-23 Board Of Trustees Of The University Of Alabama Aluminum recovery process
US20140299543A1 (en) * 2010-12-17 2014-10-09 University Of South Australia Extraction of metals
JP2014508863A (ja) 2011-03-18 2014-04-10 オーバイト アルミナ インコーポレイテッド アルミニウム含有材料から希土類元素を回収する方法
EP2705169A4 (fr) 2011-05-04 2015-04-15 Orbite Aluminae Inc Procédés d'extraction d'éléments de terres rares dans divers minerais
CN103842296B (zh) 2011-06-03 2016-08-24 奥贝特科技有限公司 用于制备赤铁矿的方法
RU2014114938A (ru) 2011-09-16 2015-10-27 Орбит Элюминэ Инк. Способы получения оксида алюминия и разнообразных других продуктов
DE102011087314A1 (de) * 2011-11-29 2013-05-29 Henkel Ag & Co. Kgaa Verfahren zur Regeneration wässriger Dispersionen sowie Zellpaket für die Elektrodialyse
CN104302791B (zh) 2012-01-10 2017-03-15 奥佰特氧化铝有限公司 用于处理赤泥的方法
CN104520237B (zh) 2012-03-29 2018-05-01 奥佰特氧化铝有限公司 处理飞灰的方法
WO2014008586A1 (fr) 2012-07-12 2014-01-16 Orbite Aluminae Inc. Procédés pour la préparation d'oxyde de titane et de divers autres produits
BR112015006536A2 (pt) 2012-09-26 2017-08-08 Orbite Aluminae Inc processos para preparar alumina e cloreto de magnésio por lixiviação com hcl de vários materiais.
AU2013344721A1 (en) 2012-11-14 2015-07-02 Orbite Aluminae Inc. Methods for purifying aluminium ions
CN109072465B (zh) * 2017-02-09 2021-09-03 株式会社Uacj 铝的制造方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US343912A (en) * 1886-06-15 de mello souza
US2847279A (en) * 1955-05-25 1958-08-12 Tucker Stanley Method for obtaining iron-free aluminum compound from clays
US3473919A (en) * 1967-06-05 1969-10-21 Armour Ind Chem Co Process for separating iron from aluminum
US3545920A (en) * 1968-02-26 1970-12-08 Us Interior Process for extracting aluminum from solutions
US3966909A (en) * 1974-02-20 1976-06-29 The Anaconda Company Solvent extraction of aluminum
US4233273A (en) * 1979-02-16 1980-11-11 Amax Inc. Selective extraction of iron and aluminum from acidic solutions
EP0030067A1 (fr) * 1979-11-30 1981-06-10 The Board Of Trustees Of The Michigan State University Procédé d'extraction d'ions métalliques
GB2210606A (en) * 1987-10-06 1989-06-14 British Gas Plc Alumina production
FR2668389B1 (fr) * 1990-10-30 1994-07-22 Inst Francais Du Petrole Procede de traitement antipollution d'un catalyseur de raffinage a l'etat use et recuperation des metaux.
RU2048556C1 (ru) * 1992-12-01 1995-11-20 Производственно-коммерческая фирма "ТНП - Индастри" Способ извлечения алюминия, кальция и редкоземельных металлов из красных шламов
NO306998B1 (no) * 1998-02-26 2000-01-24 Norsk Hydro As Fremgangsmåte for fremstilling av aluminium
AUPQ812700A0 (en) * 2000-06-13 2000-07-06 Wmc Resources Limited Solvent extraction of impurities from concentrated metal sulphate solutions
AU779001B2 (en) * 2000-07-19 2004-12-23 Canopean Pty Ltd Process for the extraction of metals
US6881321B2 (en) * 2000-10-20 2005-04-19 The University Of Alabama Production, refining and recycling of lightweight and reactive metals in ionic liquids
EP1366015A4 (fr) * 2001-03-01 2008-03-26 Tech Resources Pty Ltd Bases de mannich de benzene-1 2-diol, ligands, polymeres, et methode d'elimination selective d'ions metalliques
US6811676B2 (en) * 2002-07-16 2004-11-02 Northwest Aluminum Technologies Electrolytic cell for production of aluminum from alumina

Also Published As

Publication number Publication date
CN100406588C (zh) 2008-07-30
BRPI0507748A (pt) 2007-07-10
WO2005078145A1 (fr) 2005-08-25
RU2363748C2 (ru) 2009-08-10
CN1930313A (zh) 2007-03-14
EP1716261A4 (fr) 2008-09-17
US20070278106A1 (en) 2007-12-06
CA2556613A1 (fr) 2005-08-25
RU2006133309A (ru) 2008-03-27

Similar Documents

Publication Publication Date Title
JP3671148B2 (ja) 炭酸リチウムの精製方法
US20070278106A1 (en) Aluminum Production Process
CN102084034B (zh) 回收金属铁和硫酸有用材料的电化学方法
RU2597096C2 (ru) Способы получения оксида титана и различных других продуктов
KR20090055651A (ko) Ｉｔｏ 스크랩으로부터의 유가 금속의 회수 방법
KR20090055649A (ko) Ｉｔｏ 스크랩으로부터의 유가 금속의 회수 방법
JP3602329B2 (ja) インジウム含有物からインジウムを回収する方法
CA1098481A (fr) Extraction de zinc par lixiviation au chlore
WO2006080742A1 (fr) Procede de recuperation d'indium de haute purete
US8097132B2 (en) Process and device to obtain metal in powder, sheet or cathode from any metal containing material
CN112673119A (zh) 一种改进的锂加工方法
JP4999058B2 (ja) インジウム含有物からインジウムを回収する方法
EP4119685A1 (fr) Procédé d'extraction de scandium à partir de matériaux contenant du scandium
AU2005212385A1 (en) Aluminium production process
CA1212077A (fr) Production de gallium metallique
EP0192426A2 (fr) Extraction d'ions sodium de solutions alcalines aqueuses au moyen d'un procédé électrolytique à membrane
JPH0375224A (ja) インジウム水溶液の精製方法
US20250320579A1 (en) Method for processing rough copper concentrates from waste tailings
US11691888B2 (en) Process for the preparation of high purity alumina
CN120797077A (zh) 一种6n5高纯镍的制备方法
RU2174156C1 (ru) Способ переработки бедных марганецсодержащих руд
WO1993022478A1 (fr) Procede electrolytique de metal de gallium
HU201277B (en) Process for recovering palladium and ruthenium by separation from inactive silicon dioxide or aluminium oxide carrier catalyst
JPS6345334A (ja) ガリウムの回収法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20060822

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SHAW, RAYMOND, WALTER

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20080814

17Q First examination report despatched

Effective date: 20090123

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090804