[go: up one dir, main page]

WO2013108478A1 - Procédé de récupération d'or, et procédé d'extraction d'or le mettant en œuvre - Google Patents

Procédé de récupération d'or, et procédé d'extraction d'or le mettant en œuvre Download PDF

Info

Publication number
WO2013108478A1
WO2013108478A1 PCT/JP2012/079856 JP2012079856W WO2013108478A1 WO 2013108478 A1 WO2013108478 A1 WO 2013108478A1 JP 2012079856 W JP2012079856 W JP 2012079856W WO 2013108478 A1 WO2013108478 A1 WO 2013108478A1
Authority
WO
WIPO (PCT)
Prior art keywords
gold
leaching
metal
solution
activated carbon
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/JP2012/079856
Other languages
English (en)
Japanese (ja)
Inventor
和浩 波多野
浩至 勝川
瑛基 小野
佐野　正樹
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.)
JX Nippon Mining and Metals Corp
Original Assignee
JX Nippon Mining and Metals 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 JX Nippon Mining and Metals Corp filed Critical JX Nippon Mining and Metals Corp
Priority to AU2013200572A priority Critical patent/AU2013200572B8/en
Priority to CA2861419A priority patent/CA2861419C/fr
Publication of WO2013108478A1 publication Critical patent/WO2013108478A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
    • C22B3/24—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition by adsorption on solid substances, e.g. by extraction with solid resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
    • B01J20/3475—Regenerating or reactivating using a particular desorbing compound or mixture in the liquid phase
    • 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
    • C22B11/00—Obtaining noble metals
    • C22B11/04—Obtaining noble metals by wet processes
    • 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 method for collecting gold and a method for producing gold using the same.
  • Gold is one of the most valuable metals and exists as simple particles in natural veins.
  • As the smelting method a method of leaching with cyan and a method of recovering as mercury amalgam are known.
  • gold is dissolved in the solution as a cyano complex.
  • Gold cyano complexes are known to be very stable compared to other gold complex ions.
  • the leached gold is generally adsorbed on activated carbon and eluted with an aqueous solution containing caustic soda as a main component. Thereafter, gold is recovered from the eluent containing gold by electrolytic collection.
  • Patent Document 1 As a method of preferentially eluting gold from activated carbon that adsorbs both gold and silver in a cyanide solution containing both gold and silver, there is known a method of eluting with a solution in which sodium sulfide is mixed with an aqueous caustic soda solution. (Patent Document 1).
  • Gold is often contained as a by-product in pyrite, chalcopyrite, and other sulfide metal ores, not gold veins, and gold is separated when smelting its main component and separately smelted into metal gold There are many.
  • the gold is transferred to the anode in the dry copper smelting process, and then concentrated in the electrolytic slime in the electrolytic purification process.
  • Gold in the electrolytic slime is recovered as metallic gold by a wet smelting method (Patent Documents 2 and 3) or a dry smelting method.
  • Patent Document 4 A method of leaching gold with a simple acid has been proposed (Patent Document 4).
  • Patent Document 4 when an acid halide solution is used to leach gold, the halide forms a stable complex with a noble metal such as gold, but it may be a weaker ligand than cyanide. It is shown (paragraph 0017 in the specification of Patent Document 4).
  • a solution containing a noble metal can be recovered by adsorbing it on activated carbon, and further shows a method of recovering the noble metal by electrowinning the activated carbon by burning the activated carbon or eluting it with a cyanide solution.
  • a gold adsorbent an adsorbent using a lignin derivative as a raw material is also known (Patent Document 5).
  • Gold leached using a halide solution forms a complex with a halide, but is more unstable than a cyanide complex. Therefore, when adsorbed on activated carbon, it is reduced and exists in the activated carbon as metallic gold. Therefore, it is not possible to elute with only caustic soda, but it is necessary to elute with a cyanide solution.
  • the method of leaching gold with a cyan solution is increasingly used due to the toxicity of cyan. Therefore, a method capable of leaching gold with high efficiency without using cyan is desired.
  • the acid leaching method which is one of the proposals, requires a strong oxidizing agent because gold is inactive, and the leaching cost is high.
  • the concentration of gold leached into the solution is considerably lower than when cyan is used.
  • activated carbon is known as an adsorbent, but it is necessary to use cyan for elution of gold adsorbed by gold alone. When cyan is not used, the activated carbon is incinerated to recover gold, which is more expensive than the case of elution. Further, the adsorbent as shown in Patent Document 5 is not put into practical use due to problems such as high cost or inability to repeatedly use it.
  • the present inventors conducted leaching of metal sulfide ore in a halogen bath, leached gold together with the main component metal, adsorbed the gold leaching solution on activated carbon, and then eluted with caustic soda. Then, it was found that gold contained in the metal sulfide ore can be efficiently recovered at low cost by adjusting the concentrated gold solution.
  • the present invention completed on the background of the above knowledge, in one aspect, uses an acid leaching solution containing chloride ions and / or bromide ions as anions and copper and iron as cations, to obtain gold from a metal sulfide containing metal ore.
  • Gold comprising a step of warm leaching in the acidic leachate, a step of adsorbing gold in the acidic leachate to activated carbon, and a step of eluting the gold adsorbed on the activated carbon with an alkaline solution to obtain a concentrated gold solution This is a recovery method.
  • the metal-containing sulfide ore is selected from the group consisting of chalcocite, chalcopyrite, copper indigo, chalcopyrite, pyrite, arsenite, and arsenite. It is a concentrate containing at least one kind.
  • the metal-containing metal sulfide ore leaches 80% or more of copper, iron, or arsenic that is a main component metal from the concentrate using an acidic leachate. After that, it is a leaching residue containing gold obtained by solid-liquid separation.
  • the acidic leachate contains 40 to 200 g / L of chloride ions, 20 to 100 g / L of bromide ions, 5 to 25 g / L of copper, and 0. It contains 01-10 g / L of iron and has a pH of 0-1.9.
  • the warming leaching is performed at 60 to 100 ° C.
  • the alkaline solution contains 0.05 to 1M sodium hydroxide.
  • the alkaline solution contains sodium hydroxide and 0.1 to 10 moles of sodium sulfide with respect to sodium hydroxide.
  • the elution is performed under atmospheric pressure.
  • a gold manufacturing method in which single gold is produced by reduction from a concentrated gold solution obtained by the gold recovery method of the present invention.
  • gold contained in the sulfide metal ore can be efficiently recovered at low cost.
  • FIG. 1 shows a flowchart of a gold recovery method according to an embodiment of the present invention.
  • FIG. 1 is a flowchart showing an outline of a gold recovery method according to an embodiment of the present invention.
  • Gold is often contained as a simple substance in sulfide metal ores such as chalcocite, porphyry, copper indigo, chalcopyrite, pyrite, arsenite, arsenite, and the like. For this reason, in order to collect this, it is preferable to first concentrate the metal sulfide ore by crushing and then concentrating it by a floatation method. In addition, it is possible to further concentrate gold in the leaching residue by solid-liquid separation after leaching 80% or more of copper, iron, or arsenic which is the main component metal from this concentrate using acidic leachate, Processing efficiency is improved.
  • cyan leaching is a technique that can be avoided because its use is not limited by the high toxicity of cyan.
  • Non-Patent Document 1 a polysulfide complex is formed when gold is leached under special conditions.
  • Non-Patent Document 1 M. E. Berndt, T. Buttram, D. Earley III, W. E. Seyfried Jr., Geochimica et Cosmochimica Acta, 58, (2), 587-594, 1994 Gold polysulfide complexes are more stable than halogen complexes and are not easily reduced to single gold even when adsorbed on an adsorbent.
  • the present invention does not require special conditions such as those described in Non-Patent Document 1, and gold is leached with a polysulfide complex that is easily adsorbed on activated carbon, and the gold adsorbed on activated carbon is easily eluted with caustic soda. And recovered.
  • gold is heated and leached from a metal-containing metal sulfide ore into an acidic leachate using an acidic leachate containing chloride ions and / or bromide ions as anions and copper and iron as cations.
  • the leaching temperature is preferably 60 to 100 ° C.
  • the pH of the acidic leachate is preferably 0 to 1.9. If the leaching temperature and the pH of the leaching solution are within such ranges, gold leaching is better.
  • the acidic leaching solution preferably contains 20 to 200 g / L of chloride ions and bromide ions, and 0.01 to 30 g / L of copper and iron, respectively. Further, the acidic leachate preferably contains 40-200 g / L chloride ions, 20-100 g / L bromide ions, 5-25 g / L copper, and 0.01-10 g / L iron. .
  • the composition of the acidic leaching solution in this way, it is possible to satisfactorily dissolve chalcopyrite, arsenite, etc. that are difficult to dissolve in acid. Further, when bromine is contained, there is an effect that the dissolved gold is stabilized by Au (I).
  • the valuable metal is leached by dissolving the metal sulfide ore in the acid leaching solution by the warming leaching process. Trace amounts of gold are leached together with the main metal. If necessary, after the solid-liquid separation, the gold contained in the residue is leached with an acidic solution having the same composition.
  • gold in the acidic leachate is adsorbed by contacting with activated carbon.
  • the contact of gold with activated carbon may be performed by batch batch type or by continuously passing acidic leachate through an adsorption tower packed with activated carbon.
  • the gold form In order to facilitate elution after adsorbing gold on activated carbon, the gold form must be adsorbed as a polysulfide complex.
  • the presence of S (-II) is essential during leaching.
  • various metal sulfide species correspond to this.
  • Gold adsorbed on the activated carbon is eluted with an alkaline solution, preferably NaOH, or a mixture of NaOH and Na 2 S.
  • an alkaline solution preferably NaOH, or a mixture of NaOH and Na 2 S.
  • the concentration is preferably 0.05 to 1M, more preferably 0.1 to 0.5M.
  • Na 2 S is preferably used in a lower amount because of its price and difficulty in handling, but the lower the concentration of Na 2 S, the lower the gold elution effect.
  • the concentration is too high, the effect is saturated, and the processing load of Na 2 S increases.
  • the amount of Na 2 S added is preferably 0.1 to 10 moles of NaOH, preferably 0.5 to 1.5. The molar amount is more preferable.
  • the gold in the solution exists as a polysulfide type complex. Even if this complex is adsorbed on activated carbon, it is not reduced to an inactive simple substance.
  • the form in which the gold polysulfide complex is adsorbed on the activated carbon is considered to be gold sulfide or the following form.
  • Au (HS n H) m X (X is halogen, m is an integer of 1 to 4, and n is an integer of 1 to 9)
  • the former form (gold sulfide) is eluted by reacting with S 2 ⁇ and dissolving (Non-patent Document 2). In the case of the latter form, elution occurs when H of polyhydrogen sulfide coordinated with NaOH reacts and the complex is negatively charged.
  • Non-Patent Document 2 Seiji Takagi, Qualitative Analytical Chemistry Volume 1, Ion Reaction, Nanedo
  • Elution may be batch batch type or continuous water flow type, but in order to prevent charge from being lost due to oxidation of sulfide by oxygen and preventing gold from being re-adsorbed on activated carbon and deposited in the reactor, it is eluted in batch mode.
  • it is preferable not to stir vigorously. If stirring is required, the air is replaced with a non-oxidizing gas and stirred. Alternatively, set a larger amount of sodium sulfide or add it in a timely manner.
  • Elution is preferably performed under atmospheric pressure.
  • concentrated gold solution can be obtained by elution from activated carbon.
  • concentrated gold solution refers to a solution containing 50 to 5000 mg / L of gold.
  • reduction with sodium oxalate, chemical reduction with sulfur dioxide, or solvent extraction-electrolytic collection method is known. Obtainable.
  • Example 1 35 g of gold sulfide-containing concentrate (Cu: 17% by mass, Fe: 27% by mass, S: 25% by mass, Au: 90 ppm, main ore species are chalcopyrite and pyrotite Fe 1-x S) / L.
  • the leachate contained Cl: 180 g / L, Br: 20 g / L, Cu: 18 g / L, Fe: 2 g / L, and the pH was 1.5.
  • the leachate was heated to 85 ° C. and stirred while blowing air of 0.1 L per minute.
  • the leachate having a gold concentration of 2 mg / L or more thus obtained was passed through a column packed with coconut shell-derived activated carbon (coconut MC manufactured by Taihei Chemical Sangyo Co., Ltd.) to adsorb gold onto the activated carbon.
  • the gold concentration of the leachate after passing through the column was less than 0.1 mg / L.
  • the amount of gold adsorbed was quantified by an ash blowing method and ICP-AES to be 7500 g / ton.
  • the activated carbon adsorbed with gold was immersed in an eluent at a rate of 20 g / L and eluted under atmospheric pressure (first stage).
  • an eluent a 0.1 M NaOH solution at 85 ° C. was used.
  • the eluent was changed, and elution was repeated again under atmospheric pressure under the same conditions (second stage).
  • the test results are shown in Table 1.
  • the gold adsorbed on the activated carbon after leaching by the above method can be eluted with only NaOH. Moreover, the total elution rate is improved by repeating elution.
  • Example 2 Gold was eluted from the activated carbon adsorbed with gold prepared in Example 1 at atmospheric pressure using an eluent containing equimolar Na 2 S in 0.1 M NaOH solution.
  • the treatment temperature was room temperature, and the gold concentration in the solution was quantified by ICP-AES at regular intervals.
  • the test results are shown in Table 2.
  • Example 3 Gold was eluted at atmospheric pressure from the activated carbon adsorbed with gold prepared in Example 1 using an eluent containing equimolar Na 2 S in 0.1 M NaOH solution.
  • the treatment temperature was room temperature, and unlike in Example 2, elution was continued while stirring.
  • the gold concentration in the solution was quantified by ICP-AES at regular intervals. The test results are shown in Table 3.
  • the composition of the leaching solution is Cl: using cupric chloride, copper bromide, ferric chloride, and sodium chloride. 180 g / L, Br: 20 g / L, Cu: 18 g / L, Fe: 2 g / L. The gold concentration of the exudate after the adjustment was about 5 mg / L.
  • This leachate was passed through a column packed with coconut shell-derived activated carbon (Yacoal MC manufactured by Taihei Chemical Sangyo Co., Ltd.), and gold was adsorbed onto the activated carbon.
  • the amount of gold adsorbed was determined to be 42000 g / ton by the ash blowing method and ICP-AES.
  • the activated carbon adsorbed with gold was immersed in a 0.1 M NaOH solution at a rate of 20 g / L, and the temperature was kept at 85 ° C., and elution was performed under atmospheric pressure.
  • the gold concentration in the solution was quantified by ICP-AES at regular intervals. The test results are shown in Table 4.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Water Treatment By Sorption (AREA)
PCT/JP2012/079856 2012-01-17 2012-11-16 Procédé de récupération d'or, et procédé d'extraction d'or le mettant en œuvre Ceased WO2013108478A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2013200572A AU2013200572B8 (en) 2012-01-17 2012-11-16 Method of recovering gold and method of manufacturing gold using the same
CA2861419A CA2861419C (fr) 2012-01-17 2012-11-16 Procede de recuperation d'or, et procede d'extraction d'or le mettant en oeuvre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012007493A JP2013147685A (ja) 2012-01-17 2012-01-17 金の回収方法及びそれを用いた金の製造方法
JP2012-007493 2012-01-17

Publications (1)

Publication Number Publication Date
WO2013108478A1 true WO2013108478A1 (fr) 2013-07-25

Family

ID=48798915

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/079856 Ceased WO2013108478A1 (fr) 2012-01-17 2012-11-16 Procédé de récupération d'or, et procédé d'extraction d'or le mettant en œuvre

Country Status (6)

Country Link
JP (1) JP2013147685A (fr)
AU (1) AU2013200572B8 (fr)
CA (1) CA2861419C (fr)
CL (1) CL2014001872A1 (fr)
PE (1) PE20142412A1 (fr)
WO (1) WO2013108478A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105219958A (zh) * 2015-11-16 2016-01-06 湖南城市学院 一种氧化碱浸分离硒碲富集贵金属的方法
CN108350522A (zh) * 2015-10-29 2018-07-31 奥图泰(芬兰)公司 回收金的方法
CN111377484A (zh) * 2020-03-20 2020-07-07 安庆市长虹化工有限公司 一种硫铁矿资源回收处理方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101539458B1 (ko) * 2014-01-16 2015-07-28 오세경 간단한 구조의 합금 동 제조장치
KR101539457B1 (ko) * 2014-01-16 2015-07-28 오세경 구리 성질을 갖는 합금 동 제조방법
JP6195536B2 (ja) * 2014-03-31 2017-09-13 Ｊｘ金属株式会社 鉄の除去方法及び鉄の浸出方法、並びに金の回収方法
FI20145949A7 (fi) 2014-10-29 2016-04-30 Outotec Finland Oy Menetelmä kullan talteenottamiseksi
US10392679B2 (en) 2014-12-26 2019-08-27 Jx Nippon Mining & Metals Corporation Method for recovering gold from activated carbon
JP6463175B2 (ja) * 2015-03-06 2019-01-30 Ｊｘ金属株式会社 活性炭の再生方法及び、金の回収方法
WO2016143837A1 (fr) 2015-03-06 2016-09-15 Jx Nippon Mining & Metals Corporation Procédé de régénération de charbon activé et procédé de récupération d'or
JP7736399B2 (ja) * 2021-07-30 2025-09-09 大口電子株式会社 活性炭からの貴金属の回収方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5118991A (en) * 1974-06-28 1976-02-14 Cyprus Metallurg Process Kinzokuryukabutsuno sankaho
JPH03177521A (ja) * 1989-09-29 1991-08-01 E I Du Pont De Nemours & Co 炭素から吸着された金を溶離するための改良された方法
JPH07508073A (ja) * 1992-06-26 1995-09-07 インテック　プロプライエタリー　リミテッド 鉱物からの金属の製造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2007205792B2 (en) * 2006-09-28 2009-02-26 Jx Nippon Mining & Metals Corporation Method for leaching gold

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5118991A (en) * 1974-06-28 1976-02-14 Cyprus Metallurg Process Kinzokuryukabutsuno sankaho
JPH03177521A (ja) * 1989-09-29 1991-08-01 E I Du Pont De Nemours & Co 炭素から吸着された金を溶離するための改良された方法
JPH07508073A (ja) * 1992-06-26 1995-09-07 インテック　プロプライエタリー　リミテッド 鉱物からの金属の製造方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108350522A (zh) * 2015-10-29 2018-07-31 奥图泰(芬兰)公司 回收金的方法
US10907237B2 (en) 2015-10-29 2021-02-02 Outotec (Finland) Oy Method for recovering gold
CN105219958A (zh) * 2015-11-16 2016-01-06 湖南城市学院 一种氧化碱浸分离硒碲富集贵金属的方法
CN111377484A (zh) * 2020-03-20 2020-07-07 安庆市长虹化工有限公司 一种硫铁矿资源回收处理方法

Also Published As

Publication number Publication date
PE20142412A1 (es) 2015-01-21
CA2861419C (fr) 2016-06-07
AU2013200572A8 (en) 2013-12-19
AU2013200572B8 (en) 2013-12-19
AU2013200572B2 (en) 2013-11-14
CL2014001872A1 (es) 2014-10-03
JP2013147685A (ja) 2013-08-01
AU2013200572A1 (en) 2013-08-08
CA2861419A1 (fr) 2013-07-25

Similar Documents

Publication Publication Date Title
JP7360507B2 (ja) 有機溶媒中の貴金属を選択的に浸出および抽出するための方法
WO2013108478A1 (fr) Procédé de récupération d'or, et procédé d'extraction d'or le mettant en œuvre
JP5467133B2 (ja) 金の回収方法
JP5840761B2 (ja) 活性炭に吸着された金の回収方法及びそれを用いた金の製造方法
JP6038279B2 (ja) 金及び銀の溶離方法及びそれを用いた金及び銀の回収方法
JP5840642B2 (ja) 硫化鉱物からの金の回収方法
JP6195536B2 (ja) 鉄の除去方法及び鉄の浸出方法、並びに金の回収方法
JP2015048524A (ja) 活性炭に吸着された金の回収方法
JP7305516B2 (ja) 鉱石もしくは製錬中間物の処理方法
JP7007905B2 (ja) 銅の回収方法、及び電気銅の製造方法
JP6899672B2 (ja) 鉱石もしくは精錬中間物からの金の回収方法
JP5790408B2 (ja) ハロゲン化物水溶液から銀を回収する方法
JP6849482B2 (ja) 金を含む鉱石もしくは精錬中間物からの金の回収方法

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2013200572

Country of ref document: AU

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

Ref document number: 12866269

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 001098-2014

Country of ref document: PE

ENP Entry into the national phase

Ref document number: 2861419

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2014001872

Country of ref document: CL

122 Ep: pct application non-entry in european phase

Ref document number: 12866269

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE