WO2019107429A1 - Agent de récupération de métal, liquide de récupération de métal, procédé de récupération de composé métallique et procédé de récupération de métal - Google Patents

Agent de récupération de métal, liquide de récupération de métal, procédé de récupération de composé métallique et procédé de récupération de métal Download PDF

Info

Publication number
WO2019107429A1
WO2019107429A1 PCT/JP2018/043816 JP2018043816W WO2019107429A1 WO 2019107429 A1 WO2019107429 A1 WO 2019107429A1 JP 2018043816 W JP2018043816 W JP 2018043816W WO 2019107429 A1 WO2019107429 A1 WO 2019107429A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal
recovery
guanidine
compound
agent
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/JP2018/043816
Other languages
English (en)
Japanese (ja)
Inventor
貴彦 牧野
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.)
Kyocera Corp
Original Assignee
Kyocera Corp
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
Application filed by Kyocera Corp filed Critical Kyocera Corp
Priority to JP2019557277A priority Critical patent/JP6908725B2/ja
Publication of WO2019107429A1 publication Critical patent/WO2019107429A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/20—Obtaining niobium, tantalum or vanadium
    • 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/20—Obtaining niobium, tantalum or vanadium
    • C22B34/24—Obtaining niobium or tantalum
    • 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 disclosure relates to a metal recovery agent, a metal recovery solution, a metal compound recovery method, and a metal recovery method.
  • metal-containing bodies which are industrial wastes.
  • metal-containing bodies which are industrial wastes.
  • metal-containing bodies which are industrial wastes.
  • metal-containing bodies which are industrial wastes.
  • a metal is recovered by adding various amino acids as a metal compound adsorbent to an eluate in which a metal component of a metal-containing body is eluted in an alkaline solution. It is described.
  • the metal recovery agent of the present disclosure is a metal recovery agent used for metal recovery, and contains at least one selected from guanidine, guanidine carbonate, guanidine hydrochloride, guanidine nitrate, guanidine sulfate, and guanidine chloride.
  • the metal recovery solution of the present disclosure contains guanidine or guanidinium ion.
  • an elution step of eluting a metal from a metal-containing body using a solubilizer a mixing step of mixing the metal recovery agent or the metal recovery solution, and a metal compound containing the metal
  • a recovery step of recovering the metal compound a metal compound containing the metal
  • the metal recovery method of the present disclosure includes an elution step of eluting metal from a metal-containing substance using a solubilizer, a mixing step of mixing the metal recovery agent or the metal recovery solution, and a metal compound containing the metal. It has a production step to be produced, an oxidation step of oxidizing the metal compound to obtain a metal oxide, a reduction step of reducing the metal oxide to obtain a metal, and a recovery step of recovering the metal.
  • the metal recovery agent and metal recovery solution of the present disclosure are easily available, relatively inexpensive and safe, and have high metal recovery efficiency.
  • the metal compound recovery method and the metal recovery method of the present disclosure can recover the metal compound and metal relatively inexpensively because the recovery efficiency is high while reducing the environmental load in a simple processing step.
  • the metal recovery agent the metal recovery solution, the metal compound recovery method, and the metal recovery method of the present disclosure will be specifically described.
  • the metal recovery agent of the present disclosure contains at least one selected from guanidine, guanidine carbonate, guanidine hydrochloride, guanidine nitrate, guanidine sulfate and guanidine chloride.
  • Guanidine is an organic compound whose molecular formula is represented by CH 5 N 3 .
  • Guanidine carbonate is an organic compound whose molecular formula is represented by C 2 H 10 N 6 ⁇ CH 2 O 3 .
  • guanidine hydrochloride is one obtained by replacing a carbonate group contained in guanidine carbonate with, for example, a hydrochloric acid group, and the same applies to guanidine nitrate, guanidine sulfate and guanidine chloride.
  • the metal recovery agents guanidine and guanidine carbonate according to the present disclosure are used as food additives, and have less influence on the human body.
  • the metal recovery agent may consist only of the above-mentioned organic compound such as guanidine. Moreover, you may contain two or more of the above-mentioned organic compound. It may also contain other ingredients.
  • the metal recovery agent of the present disclosure has a function of generating a metal compound with a metal. Therefore, metal compounds and metals can be efficiently recovered by using the metal recovery agent of the present disclosure.
  • the metal recovered by the metal recovery agent of the present disclosure may be a Group 5 metal.
  • the metal of the fifth group may be Ta.
  • V, Nb is mentioned as another metal of 5 group.
  • the metal recovery solution of the present disclosure contains guanidine or guanidine ion.
  • the metal recovery liquid of the present disclosure has a function of generating a metal compound with a metal, and can be obtained by dissolving the metal recovery agent of the present disclosure in a liquid such as water.
  • guanidine carbonate when guanidine carbonate is used as a metal recovery agent and water and guanidine carbonate are mixed to prepare a metal recovery solution, carbonate ions and guanidinium ions exist in the metal recovery solution, and the environment The load is small.
  • the amount of guanidine in the metal recovery solution may be 1 to 20 times in molar ratio to the metal to be recovered.
  • the metal recovered by the metal recovery solution of the present disclosure may be a Group 5 metal, and the Group 5 metal may be Ta.
  • Other Group 5 metals include V and Nb.
  • the metal compound recovery method of the present disclosure comprises an elution step of eluting a metal contained in a metal-containing body from a metal-containing body containing a metal using a dissolving agent, a metal recovery agent of the present disclosure, or a metal recovery solution of the present disclosure. And a production step of producing a metal compound containing a metal, and a recovery step of recovering the metal compound.
  • the metal to be recovered is present in various forms, and unnecessary resin components and the like are mixed and present.
  • the form of the metal contained in the metal-containing body may be in the form of an oxide or a carbide, and the conductive metal itself may be contained in the metal-containing body.
  • the metal-containing body When the metal-containing body is a large block, the surface area is small, and it takes time to elute the metal even when mixed with the dissolving agent. Therefore, from the viewpoint of shortening the elution time, the metal-containing body may be crushed to a small size.
  • the specific size of the metal-containing body is about 1 mm.
  • the form of the metal contained in the metal-containing body is a carbide
  • the carbide may be heat-treated in the atmosphere.
  • the metal of the metal-containing body may be oxidized as required. Oxidation of metal may be performed in the same process as oxidation of carbide.
  • the metal-containing body contains an organic substance or the like
  • carbon is converted to carbon dioxide by burning the organic substance at the same time as oxidizing the metal, and the metal other than the metal contained in the metal-containing body by vaporization.
  • the amount of substances can be reduced.
  • the metal-containing body may be crushed to a size of about 1 mm.
  • a metal-containing body having a size of about 1 mm by adding a dissolving agent to a metal-containing body having a size of about 1 mm and then heating, the metal contained in the metal-containing body is eluted in a dissolving solution in which the dissolving agent is dissolved.
  • a metal-containing eluate can be obtained.
  • the metal compound recovery method and the metal recovery method of the present disclosure have such an elution step.
  • the metal contained in the eluate is present as ions.
  • solubilizer for example, KOH, NaOH, NaNO 3 , Na 2 SO 4 , Na 2 CO 3 can be mentioned.
  • KOH is used as the solubilizer, the pH of the eluate becomes alkaline of 12 or more.
  • the eluate becomes solid when the temperature drops. Therefore, after cooling, water or the like may be added to make the liquid state again.
  • the metal-containing body may be placed in a solution obtained by dissolving the above-mentioned dissolving agent in water or the like in advance. If necessary, a step of removing impurities from the eluate using a method such as filtration may be added.
  • the metal-containing eluate is subjected to a mixing step of mixing the metal recovery agent or metal recovery solution of the present disclosure.
  • the addition amount of the metal recovery agent or the metal recovery solution may be such that the molar ratio of guanidine to the metal contained in the eluate is 1 to 20 times.
  • the solid and the metal recovery solution may be mixed.
  • the metal recovery agent or the metal recovery solution of the present disclosure When the metal recovery agent or the metal recovery solution of the present disclosure is mixed with the metal-containing eluate, the metal and guanidine ion react to form a precipitate of the metal compound containing the metal and guanidine. After the precipitate of the metal compound is sufficiently generated by this generation step, this precipitate is separated from the liquid by solid-liquid separation in the recovery step.
  • the metal compound separated from the liquid is attached with an alkaline liquid and impurities, it is diluted with water to wash and remove the alkali liquid and impurities attached to the surface of the metal compound.
  • the metal compound recovery method of the present disclosure has a recovery step of recovering the metal compound. Note that cleaning and removal of impurities may be performed as needed.
  • the metal compound recovery method of the present disclosure may have an oxidation step of obtaining a metal oxide by simply oxidizing the metal compound obtained through the above-described steps.
  • the metal oxide is Ta 2 O 5 when the metal is Ta.
  • the metal recovery method of the present disclosure includes a reduction step of obtaining a metal by heating and recovering the recovered metal oxide in a reducing atmosphere.
  • a metal carbide can also be obtained by mixing the metal or metal oxide obtained in the above step and carbon powder and carbonizing the mixture by heating in an inert atmosphere.
  • the metal carbide is TaC when the metal is Ta.
  • the metal recovery agent, the metal recovery solution, the metal compound recovery method, and the metal recovery method of the present disclosure have been described above, but the present disclosure is not limited to the embodiments described above, and various types can be used without departing from the scope of the present disclosure. Modifications and variations may be made.
  • a method using guanidine carbonate is continuously described as a metal compound recovery method and metal recovery method using the metal recovery agent of the present disclosure. Further, as a comparative example, an example using arginine is described. In each case, the metal to be recovered is Ta.
  • the elution step is common to the example and the comparative example, the elution step will be described together with the example and the comparative example.
  • a metal-containing body containing a material which does not need to be recovered was not used, and Ta 2 O 5 which is an oxide of Ta was used as a starting material.
  • Ta 2 O 5 which is a powdered oxide with an average particle size of 10 ⁇ m was mixed with 5.0 g of granular potassium hydroxide (KOH) and heated at a temperature of 350 ° C. or higher. In this elution step, potassium hydroxide and Ta 2 O 5 are reacted, cooled to room temperature, and 40 g of pure water is added to prepare an eluate containing Ta ions.
  • KOH granular potassium hydroxide
  • the eluate obtained in the above-mentioned elution step was mixed with guanidine carbonate and stirred to form a metal compound containing guanidine and Ta.
  • the amount of guanidine carbonate was 10 times the molar ratio of Ta.
  • the metal compound was recovered by centrifugation. At that time, the metal compound was washed with pure water to remove alkali components and impurities. Composition analysis of Ta contained in the solution after recovery from which the metal compound had been removed by ICP revealed that 99% of the metal initially contained in the eluate was recovered as a metal compound.
  • the metal compound thus recovered was oxidized by heating to 750 ° C. to 950 ° C. in the atmosphere to obtain a metal oxide (Ta 2 O 5 ).
  • the obtained metal oxide was reduced by heating to a temperature of 1400 ° C. to 1800 ° C. in a reducing atmosphere containing hydrogen, whereby metal (Ta) could be recovered.
  • arginine was added to the above-mentioned metal-containing eluate and stirred to form a metal compound containing arginine and Ta.
  • Arginine was added at a molar ratio of 10 times that of Ta as in the case of guanidine carbonate.
  • Examples of the metal-containing body containing Ta include waste materials of cemented carbide and waste materials of tantalum capacitors.
  • the present disclosure can be applied not only to recovering metal compounds from waste materials as described above, but also to extracting metal compounds from mineral raw materials.

Landscapes

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

Abstract

La présente invention concerne un agent de récupération de métal contenant au moins un élément choisi parmi la guanidine, le carbonate de guanidine, le chlorhydrate de guanidine, le nitrate de guanidine, le sulfate de guanidine et le chlorure de guanidine. L'invention concerne également un liquide de récupération de métal contenant de la guanidine ou des ions guanidium. En outre, l'invention concerne un procédé de récupération de composé métallique comprenant une étape d'élution consistant à éluer un métal à partir d'un matériau contenant un métal à l'aide d'un agent de dissolution, une étape de mélange consistant à mélanger l'agent de récupération de métal ou le liquide de récupération de métal, une étape de production consistant à produire un composé métallique contenant le métal, et une étape de récupération consistant à récupérer le composé métallique. L'invention concerne également un procédé de récupération de métal comprenant une étape d'oxydation consistant à oxyder le composé métallique obtenu par le procédé de récupération de composé métallique, une étape de réduction consistant à réduire l'oxyde métallique pour obtenir le métal, et une étape de récupération consistant à récupérer le métal.
PCT/JP2018/043816 2017-11-28 2018-11-28 Agent de récupération de métal, liquide de récupération de métal, procédé de récupération de composé métallique et procédé de récupération de métal Ceased WO2019107429A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019557277A JP6908725B2 (ja) 2017-11-28 2018-11-28 金属回収剤、金属回収液、金属化合物回収方法および金属回収方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2017-228231 2017-11-28
JP2017228231 2017-11-28
JP2018-106003 2018-06-01
JP2018106003 2018-06-01

Publications (1)

Publication Number Publication Date
WO2019107429A1 true WO2019107429A1 (fr) 2019-06-06

Family

ID=66663995

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/043816 Ceased WO2019107429A1 (fr) 2017-11-28 2018-11-28 Agent de récupération de métal, liquide de récupération de métal, procédé de récupération de composé métallique et procédé de récupération de métal

Country Status (2)

Country Link
JP (1) JP6908725B2 (fr)
WO (1) WO2019107429A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61111917A (ja) * 1984-11-01 1986-05-30 Sumitomo Chem Co Ltd ガリウムの回収方法
JP2001115137A (ja) * 1999-10-21 2001-04-24 Miyoshi Oil & Fat Co Ltd 金属捕集方法
JP2013001951A (ja) * 2011-06-16 2013-01-07 Hitachi Ltd 透析促進剤および金属回収方法
JP2014188434A (ja) * 2013-03-27 2014-10-06 Asahi Kasei Chemicals Corp 金属捕集材

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG10201604733WA (en) * 2011-12-15 2016-08-30 Entegris Inc Apparatus and method for stripping solder metals during the recycling of waste electrical and electronic equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61111917A (ja) * 1984-11-01 1986-05-30 Sumitomo Chem Co Ltd ガリウムの回収方法
JP2001115137A (ja) * 1999-10-21 2001-04-24 Miyoshi Oil & Fat Co Ltd 金属捕集方法
JP2013001951A (ja) * 2011-06-16 2013-01-07 Hitachi Ltd 透析促進剤および金属回収方法
JP2014188434A (ja) * 2013-03-27 2014-10-06 Asahi Kasei Chemicals Corp 金属捕集材

Also Published As

Publication number Publication date
JP6908725B2 (ja) 2021-07-28
JPWO2019107429A1 (ja) 2020-11-19

Similar Documents

Publication Publication Date Title
JP4430014B2 (ja) 高純度酸化亜鉛粉末の製造方法
US4988487A (en) Process for recovering metal values such as scandium, iron and manganese from an industrial waste sludge
JP5344154B2 (ja) タングステンの回収処理方法
JP6352846B2 (ja) リチウムイオン電池リサイクル原料からの金属の回収方法
JP3415844B2 (ja) フッ化物含有鉱石からのセリウムの回収
JP2018062691A (ja) コバルト・タングステン原料からのタングステン濃縮物の回収方法
JP2019153562A (ja) 炭酸リチウムの製造方法及び、炭酸リチウム
JP2009203486A (ja) ルテニウムを含むスクラップからルテニウムを回収する方法
WO2013128830A1 (fr) Procédé de récupération de métal
JP7016463B2 (ja) テルルの回収方法
JP2010138490A (ja) 亜鉛の回収方法等
JP6143417B2 (ja) タングステンの製造方法
JP4859970B2 (ja) モリブデンの精錬方法
CN105925811A (zh) 一种协同氧化浸出碲渣中碲的方法
JP2015187291A (ja) 希土類元素の回収方法
WO2014158043A1 (fr) Procédé de régénération de rhénium à partir de déchets de superalliages contenant du nickel
WO2022196197A1 (fr) Procédé pour la liquéfaction de niobium et de tantale, et procédé pour la production de solution de niobium et de solution de tantale
JP6908725B2 (ja) 金属回収剤、金属回収液、金属化合物回収方法および金属回収方法
JP5984895B2 (ja) 酸化タングステンの製造方法及び酸化タングステンの処理方法
JP6374285B2 (ja) タングステン化合物の回収方法
JP2015036430A (ja) Ｃｅの高純度回収方法
JP7193136B2 (ja) 炭酸亜鉛の製造方法
JPH04198017A (ja) 酸化スカンジウムの精製方法
KR101787042B1 (ko) 폐초경합금 산화물 용해용 용액 조성물
JP7565585B2 (ja) 炭酸亜鉛の製造方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18883645

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019557277

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18883645

Country of ref document: EP

Kind code of ref document: A1