WO2013069563A1 - Procédé d'extraction de cobalt - Google Patents

Procédé d'extraction de cobalt Download PDF

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Publication number
WO2013069563A1
WO2013069563A1 PCT/JP2012/078446 JP2012078446W WO2013069563A1 WO 2013069563 A1 WO2013069563 A1 WO 2013069563A1 JP 2012078446 W JP2012078446 W JP 2012078446W WO 2013069563 A1 WO2013069563 A1 WO 2013069563A1
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Prior art keywords
cobalt
acidic solution
manganese
derivative
extractant
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PCT/JP2012/078446
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English (en)
Japanese (ja)
Inventor
後藤　雅宏
富生子 久保田
雄三 馬場
Original Assignee
国立大学法人九州大学
住友金属鉱山株式会社
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Publication date
Priority claimed from JP2012178293A external-priority patent/JP5279938B1/ja
Priority claimed from JP2012225454A external-priority patent/JP5279942B1/ja
Application filed by 国立大学法人九州大学, 住友金属鉱山株式会社 filed Critical 国立大学法人九州大学
Priority to AU2012336970A priority Critical patent/AU2012336970B2/en
Priority to CN201280019544.1A priority patent/CN103620065B/zh
Priority to EP12847107.5A priority patent/EP2682486B1/fr
Priority to US14/001,848 priority patent/US9011804B2/en
Priority to CA 2827601 priority patent/CA2827601C/fr
Publication of WO2013069563A1 publication Critical patent/WO2013069563A1/fr

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    • 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
    • C22B23/0453—Treatment or purification of solutions, e.g. obtained 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
    • 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
    • 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
    • C22B3/40—Mixtures
    • C22B3/402—Mixtures of acyclic or carbocyclic compounds of different types
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/54—Reclaiming serviceable parts of waste accumulators
    • 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/84—Recycling of batteries or fuel cells

Definitions

  • the present invention relates to a cobalt extraction method.
  • Cobalt and rare earth metals are known as valuable metals and are used for various purposes in industry. Cobalt is used in superalloys (high-strength heat-resistant alloys) used for aircraft jet engines and the like, in addition to positive electrode materials for secondary batteries. Rare earth metals are used in phosphor materials, negative electrodes for nickel metal hydride batteries, additives for magnets mounted on motors, abrasives for glass substrates used in liquid crystal panels and hard disk drives, and the like.
  • a wet method in which a used battery is dissolved in an acid and a metal is recovered using a separation method such as a precipitation method, a solvent extraction method, or electrolytic collection.
  • a precipitation method there are a method of adjusting the pH of a solution containing cobalt and manganese, a method of obtaining a cobalt sulfide starch by adding a sulfurizing agent, and a method of obtaining a manganese oxide starch by adding an oxidizing agent. It is known (see Patent Document 1). However, this method has problems such as coprecipitation, and it is difficult to completely separate cobalt and manganese.
  • an acidic extractant is widely used.
  • the battery solution contains a high concentration of manganese. There is no effective extractant to extract effectively.
  • cobalt smelting currently used to produce cobalt is made of nickel ore such as nickel oxide ore, but nickel oxide ore has a manganese ratio compared to cobalt. It is high, and its abundance ratio is about 5 to 10 times that of cobalt, and separation of manganese is a major issue when smelting cobalt.
  • An object of the present invention is to provide a method for selectively extracting cobalt from an acidic solution containing manganese at a high concentration.
  • the present invention provides the following.
  • an acidic solution containing manganese and cobalt is subjected to solvent extraction with a valuable metal extractant composed of an amide derivative represented by the following general formula (I), and the cobalt is extracted from the acidic solution.
  • a valuable metal extractant composed of an amide derivative represented by the following general formula (I)
  • R 1 and R 2 each represent the same or different alkyl group. The alkyl group may be linear or branched.
  • R 3 represents a hydrogen atom or an alkyl group.
  • R 4 represents a hydrogen atom, Or any group other than an amino group bonded to the ⁇ -carbon as an amino acid.
  • the present invention provides the cobalt extraction according to (1), wherein the amide derivative is any one or more of a glycinamide derivative, a histidine amide derivative, a lysine amide derivative, an aspartic acid amide derivative and a normal-methylglycine derivative. Is the method.
  • this invention attaches
  • cobalt can be selectively extracted from an acidic solution containing manganese at a high concentration.
  • FIG. 1 is a diagram showing a 1 H-NMR spectrum of a glycinamide derivative synthesized in Example 1.
  • FIG. 1 is a diagram showing a 13 C-NMR spectrum of a glycinamide derivative synthesized in Example 1.
  • FIG. The result when cobalt is extracted from the acidic solution containing cobalt and manganese using the valuable metal extractant of Example 1 is shown.
  • the result when cobalt is extracted from the acidic solution containing cobalt and manganese using the valuable metal extractant of Example 2 is shown.
  • the result when cobalt is extracted from an acidic solution containing cobalt and manganese using the valuable metal extractant of Example 3 is shown.
  • the result when cobalt is extracted from the acidic solution containing cobalt and manganese using the valuable metal extractant of Comparative Example 1 is shown.
  • the cobalt extraction method of the present invention is subjected to solvent extraction with a valuable metal extractant composed of an amide derivative represented by the following general formula (I) to extract the cobalt from the acidic solution.
  • the substituents R 1 and R 2 each represent the same or different alkyl group.
  • the alkyl group may be linear or branched.
  • R 3 represents a hydrogen atom or an alkyl group.
  • R 4 represents a hydrogen atom or an arbitrary group other than an amino group bonded to the ⁇ -carbon as an amino acid.
  • the lipophilicity can be increased and used as an extractant.
  • the amide derivative is one or more of a glycinamide derivative, a histidine amide derivative, a lysine amide derivative, an aspartic acid amide derivative and a normal-methylglycine derivative.
  • the amide derivative is a glycinamide derivative
  • the above glycinamide derivative can be synthesized by the following method. First, 2-halogenated acetyl halide is added to an alkylamine having a structure represented by NHR 1 R 2 (R 1 and R 2 are the same as the above substituents R 1 and R 2 ), and an amine is obtained by nucleophilic substitution reaction. Is substituted with 2-halogenated acetyl to give 2-halogenated (N, N-di) alkylacetamide.
  • Replacing glycine with histidine, lysine, and aspartic acid can synthesize histidine amide derivatives, lysine amide derivatives, and aspartic acid amide derivatives. From the constant, it is considered to be within the range of the results using the glycine derivative and the histidine amide derivative.
  • this acidic aqueous solution is added to the organic solution of the extractant and mixed while adjusting the acidic aqueous solution containing the target valuable metal ions.
  • the target valuable metal ion can be selectively extracted into the organic phase.
  • the organic solvent after extracting the valuable metal ions is separated, and the reverse extraction starting liquid whose pH is adjusted lower than that of the acidic aqueous solution is added thereto and stirred to extract the desired valuable metal ions into the organic solvent.
  • the target valuable metal ions can be recovered in the aqueous solution by separating and further back extracting the target valuable metal ions from the organic solvent.
  • the back extraction solution for example, an aqueous solution in which nitric acid, hydrochloric acid, or sulfuric acid is diluted is preferably used.
  • the objective valuable metal ion can also be concentrated by changing suitably the ratio of an organic phase and an aqueous phase.
  • the organic solvent may be any solvent as long as the extractant and the metal extraction species are dissolved, for example, a chlorinated solvent such as chloroform and dichloromethane, an aromatic hydrocarbon such as benzene, toluene, and xylene, Examples thereof include aliphatic hydrocarbons such as hexane. These organic solvents may be used alone or in combination, and alcohols such as 1-octanol may be mixed.
  • a chlorinated solvent such as chloroform and dichloromethane
  • an aromatic hydrocarbon such as benzene, toluene, and xylene
  • aliphatic hydrocarbons such as hexane.
  • the concentration of the extractant can be appropriately set depending on the type and concentration of valuable metals.
  • the stirring time and extraction temperature are appropriately set according to the conditions of the acidic aqueous solution of valuable metal ions and the organic solution of the extractant because the equilibrium time varies depending on the type and concentration of the valuable metal and the amount of extractant added. do it.
  • the pH of the acidic aqueous solution containing metal ions can also be adjusted as appropriate depending on the type of valuable metal.
  • any amino derivative may be used as an extractant as long as it is the above amino derivative.
  • normal-methylglycine derivative or histidine amide derivative Is preferable because it has a wide pH range and is more convenient for cobalt extraction industrially.
  • the organic solution of an extractant it is preferable to add the organic solution of an extractant, adjusting the pH of the acidic aqueous solution containing cobalt and manganese to 3.5 or more and 5.5 or less, and adjusting the said pH to 4.0 or more and 5.0 or less More preferably, an organic solution of the extractant is added. If the pH is less than 3.5, cobalt may not be sufficiently extracted depending on the type of the extractant. When pH exceeds 5.5, depending on the kind of extractant, not only cobalt but also manganese may be extracted.
  • D2EHAG N-di (2-ethylhexyl) acetamide
  • D2EHAG was synthesized as follows. First, as shown in the following reaction formula (II), 23.1 g (0.1 mol) of commercially available di (2-ethylhexyl) amine and 10.1 g (0.1 mol) of triethylamine were separated into chloroform. Then, 13.5 g (0.12 mol) of 2-chloroacetyl chloride was added dropwise, then washed once with 1 mol / l hydrochloric acid, then with ion-exchanged water, and the chloroform phase was separated. did. Next, an appropriate amount (about 10 to 20 g) of anhydrous sodium sulfate was added and dehydrated, followed by filtration to obtain 29.1 g of a yellow liquid.
  • reaction formula (II) 23.1 g (0.1 mol) of commercially available di (2-ethylhexyl) amine and 10.1 g (0.1 mol) of triethylamine were separated into chloroform. Then,
  • reaction formula (III) methanol is added to and dissolved in 8.0 g (0.2 mol) of sodium hydroxide, and the solution in which 15.01 g (0.2 mol) of glycine is further added is stirred. Then, 12.72 g (0.04 mol) of the above CDEHAA was slowly added dropwise and stirred. After completion of the stirring, the solvent in the reaction solution was distilled off, and chloroform was added to the residue to dissolve it. The solution was acidified by adding 1 mol / l sulfuric acid, washed with ion-exchanged water, and the chloroform phase was separated. An appropriate amount of anhydrous magnesium sulfate was added to the chloroform phase for dehydration and filtration.
  • a normal-methylglycine derivative represented by the following general formula (I), that is, N- [N, N-bis (2- Ethylhexyl) aminocarbonylmethyl] sarcosine (N- [N, N-Bis (2-ethylhexyl) aminocarbonylmethyl) sarcosine) (or N, N-di (2-ethylhexyl) acetamido-2-sarcosine (N, N-di (2 -Ethylhexyl) acetamide-2-sarcocine), hereinafter referred to as "D2EHAS").
  • general formula (I) that is, N- [N, N-bis (2- Ethylhexyl) aminocarbonylmethyl] sarcosine (N- [N, N-Bis (2-ethylhexyl) aminocarbonylmethyl) sarcosine) (or N, N-di (2-ethylhex
  • D2EHAS The synthesis of D2EHAS was performed as follows. As shown in the following reaction formula (IV), methanol is added to and dissolved in 5.3 g (0.132 mol) of sodium hydroxide, and 11.8 g (0.132 mol) of sarcosine (N-methylglycine) is further added. While stirring, 36.3 g (0.12 mol) of the above CDEHAA was slowly added dropwise and stirred. After completion of the stirring, the solvent in the reaction solution was distilled off, and chloroform was added to the residue to dissolve it. The solution was acidified by adding 1 mol / l sulfuric acid, washed with ion-exchanged water, and the chloroform phase was separated.
  • reaction formula (IV) methanol is added to and dissolved in 5.3 g (0.132 mol) of sodium hydroxide, and 11.8 g (0.132 mol) of sarcosine (N-methylglycine) is further added. While stirring, 36.3 g
  • D2EHAH a histidine amide derivative represented by the following general formula (I), that is, N- [N, N-bis (2-ethylhexyl) into which two 2-ethylhexyl groups are introduced Aminocarbonylmethyl] histidine (N- [N, N-Bis (2-
  • D2EHAH The synthesis of D2EHAH was performed as follows. As shown in the following reaction formula (V), methanol was added to 16 g (0.4 mol) of sodium hydroxide to dissolve it, and further, 31.0 g (0.2 mol) of histidine was further added, while stirring, the CDEHAA13. 2 g (0.04 mol) was slowly added dropwise. After completion of dropping, the mixture was stirred while maintaining alkaline conditions. After completion of the stirring, the solvent in the reaction solution was distilled off, and the residue was dissolved by adding ethyl acetate. This solution was washed and the ethyl acetate phase was separated.
  • V reaction formula (V)
  • methanol was added to 16 g (0.4 mol) of sodium hydroxide to dissolve it, and further, 31.0 g (0.2 mol) of histidine was further added, while stirring, the CDEHAA13. 2 g (0.04 mol) was slowly added dropwise. After completion of dropping, the mixture was
  • Comparative Example 1 As the valuable metal extractant of Comparative Example 1, a commercially available carboxylic acid-based cobalt extractant (trade name: VA-10, neodecanoic acid, manufactured by Hexion Specialty Chemicals Japan) was used.
  • DODGAA DODGAA synthesis was performed as follows. First, as shown in the following reaction formula (VI), 4.2 g of diglycolic anhydride was placed in a round bottom flask and suspended in 40 ml of dichloromethane. Thereafter, 7 g of dioctylamine (purity 98%) was dissolved in 10 ml of dichloromethane and slowly added with a dropping funnel. While stirring at room temperature, it was confirmed that diglycolic anhydride reacted and the solution became transparent, and the reaction was terminated.
  • reaction formula (VI) 4.2 g of diglycolic anhydride was placed in a round bottom flask and suspended in 40 ml of dichloromethane. Thereafter, 7 g of dioctylamine (purity 98%) was dissolved in 10 ml of dichloromethane and slowly added with a dropping funnel. While stirring at room temperature, it was confirmed that diglycolic anhydride reacted and the solution became transparent, and the reaction was terminate
  • the solution was washed with water to remove water-soluble impurities. Then, sodium sulfate was added as a dehydrating agent to the solution after washing with water. The solution was filtered with suction, and then the solvent was evaporated. And after recrystallizing (three times) using hexane, it vacuum-dried. The yield of the obtained substance was 9.57 g, and the yield based on the above diglycolic anhydride was 94.3%. And when the structure of the obtained substance was identified by NMR and elemental analysis, it was confirmed that it was DODGAA having a purity of 99% or more.
  • Examples 1 to 3 Contains several types of sulfuric acid acid solutions containing 1 ⁇ 10 ⁇ 4 mol / l of cobalt and manganese each and pH adjusted to 2.5 to 7.5, and 0.01 mol / l of valuable metal extractant with the same volume.
  • the normal dodecane solution was added to a test tube, placed in a thermostatic chamber at 25 ° C., and shaken for 24 hours. At this time, the pH of the sulfuric acid solution was adjusted using sulfuric acid, ammonium sulfate and ammonia having a concentration of 0.1 mol / l.
  • the aqueous phase was fractionated and the cobalt concentration and manganese concentration were measured using an induction plasma emission spectroscopic analyzer (ICP-AES).
  • ICP-AES induction plasma emission spectroscopic analyzer
  • the organic phase was back extracted with 1 mol / l sulfuric acid.
  • the cobalt concentration and the manganese concentration in the back extraction phase were measured using ICP-AES. From these measurement results, the extraction rate of cobalt and manganese was defined by the quantity in the organic phase / (the quantity in the organic phase + the quantity in the aqueous phase).
  • the horizontal axis represents the pH of the sulfuric acid acidic solution
  • the vertical axis represents the extraction rate (unit:%) of cobalt or manganese.
  • squares indicate cobalt extraction rates
  • circles indicate manganese extraction rates.

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Abstract

La présente invention a pour objet d'extraire sélectivement du cobalt à partir d'une solution acide contenant une forte concentration de manganèse. Un tel procédé d'extraction de cobalt extrait du cobalt à partir d'une solution acide contenant du manganèse et du cobalt en soumettant la solution acide à une extraction par solvant au moyen d'un agent d'extraction de métaux valorisables contenant un dérivé amide représenté par la formule générale (I). L'agent d'extraction de métaux valorisables est représenté par la formule générale. Dans la formule : R1 et R2 représentent chacun le même groupe alkyle ou un groupe alkyle différent ; R3 représente un atome d'hydrogène ou un groupe alkyle ; et R4 représente un atome d'hydrogène ou un quelconque groupe donné autre qu'un groupe amino lié au carbone α sous forme d'amino-acide. De préférence, la formule générale contient une unité de glycine, une unité d'histidine, une unité de lysine, une unité d'acide aspartique ou une unité de N-méthylglycine. De préférence, le pH de la solution acide se situe dans la plage de 3,5 à 5,5, limites comprises.
PCT/JP2012/078446 2011-11-09 2012-11-02 Procédé d'extraction de cobalt WO2013069563A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU2012336970A AU2012336970B2 (en) 2011-11-09 2012-11-02 Cobalt extraction method
CN201280019544.1A CN103620065B (zh) 2011-11-09 2012-11-02 钴提取方法
EP12847107.5A EP2682486B1 (fr) 2011-11-09 2012-11-02 Procédé d'extraction de cobalt
US14/001,848 US9011804B2 (en) 2011-11-09 2012-11-02 Cobalt extraction method
CA 2827601 CA2827601C (fr) 2011-11-09 2012-11-02 Procede d'extraction de cobalt

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2011-245981 2011-11-09
JP2011245981 2011-11-09
JP2012056143 2012-03-13
JP2012-056143 2012-03-13
JP2012-178293 2012-08-10
JP2012178293A JP5279938B1 (ja) 2011-11-09 2012-08-10 有価金属抽出剤及びこの抽出剤を用いた有価金属抽出方法
JP2012-225454 2012-10-10
JP2012225454A JP5279942B1 (ja) 2011-11-09 2012-10-10 コバルト抽出方法

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
US9458526B2 (en) 2013-03-18 2016-10-04 Kyushu University, National University Corporation Method for separating impurities from an acidic solution containing nickel and cobalt and/or scandium
US9481638B2 (en) 2012-03-13 2016-11-01 Kyushu University, National University Corporation Scandium extraction method
US9725786B2 (en) 2012-12-12 2017-08-08 Kyushu University, National University Corporation Nickel extraction method
US9803262B2 (en) 2012-08-20 2017-10-31 Kyushu University, National University Corporation Gallium extraction agent and gallium extraction method
US10036082B2 (en) 2015-01-20 2018-07-31 Kyushu University, National University Corporation Zirconium extractant and method for extracting zirconium

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JP2000234130A (ja) 1999-02-12 2000-08-29 Taiheiyo Kinzoku Kk 酸化鉱石から有価金属を回収する方法
JP2010174366A (ja) * 2009-02-02 2010-08-12 Sumitomo Metal Mining Co Ltd 使用済みニッケル水素電池からの金属の回収方法

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EP0834581A1 (fr) * 1996-09-30 1998-04-08 Basf Aktiengesellschaft Utilisation de dérivés d'acide aminométhylènephosphonique solubles dans des hydrocarbures pour séparer par solvant des ions de métaux contenus dans des solutions aqueuses
JP2000234130A (ja) 1999-02-12 2000-08-29 Taiheiyo Kinzoku Kk 酸化鉱石から有価金属を回収する方法
JP2010174366A (ja) * 2009-02-02 2010-08-12 Sumitomo Metal Mining Co Ltd 使用済みニッケル水素電池からの金属の回収方法

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K. SHIMOJO; H. NAGANAWA; J. NORO; F. KUBOTA; M. GOTO: "Extraction behavior and separation of lanthanides with a diglycol amic acid derivative and a nitrogen-donor ligand", ANAL. SCI., vol. 23, December 2007 (2007-12-01), pages 1427 - 30, XP002597764, DOI: doi:10.2116/analsci.23.1427

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9481638B2 (en) 2012-03-13 2016-11-01 Kyushu University, National University Corporation Scandium extraction method
US9803262B2 (en) 2012-08-20 2017-10-31 Kyushu University, National University Corporation Gallium extraction agent and gallium extraction method
US9725786B2 (en) 2012-12-12 2017-08-08 Kyushu University, National University Corporation Nickel extraction method
US9458526B2 (en) 2013-03-18 2016-10-04 Kyushu University, National University Corporation Method for separating impurities from an acidic solution containing nickel and cobalt and/or scandium
US10036082B2 (en) 2015-01-20 2018-07-31 Kyushu University, National University Corporation Zirconium extractant and method for extracting zirconium

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AU2012336970B2 (en) 2015-04-30
CA2827601A1 (fr) 2013-05-16
CA2827601C (fr) 2014-09-16

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