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WO2002053788A1 - Procede de recuperation de metaux de base et de metaux precieux par chloruration extractive - Google Patents

Procede de recuperation de metaux de base et de metaux precieux par chloruration extractive Download PDF

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Publication number
WO2002053788A1
WO2002053788A1 PCT/CA2000/001590 CA0001590W WO02053788A1 WO 2002053788 A1 WO2002053788 A1 WO 2002053788A1 CA 0001590 W CA0001590 W CA 0001590W WO 02053788 A1 WO02053788 A1 WO 02053788A1
Authority
WO
WIPO (PCT)
Prior art keywords
solution
metal chlorides
metals
remaining
residue
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/CA2000/001590
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English (en)
Inventor
Jean-Marc Lalancette
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.)
Nichromet Extraction Inc
Original Assignee
Nichromet Extraction Inc
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 Nichromet Extraction Inc filed Critical Nichromet Extraction Inc
Priority to PCT/CA2000/001590 priority Critical patent/WO2002053788A1/fr
Publication of WO2002053788A1 publication Critical patent/WO2002053788A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/009—General processes for recovering metals or metallic compounds from spent catalysts
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/08—Chloridising roasting
    • 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
    • C22B11/06—Chloridising
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/10—Hydrochloric acid, other halogenated acids or salts thereof
    • 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 pertains to a method for the recovery of base metals such as cobalt, nickel, copper, lead, zinc, mercury and cadmium, precious metals such as silver and gold, as well as the platinum group metals, comprising ruthenium, rhodium, palladium, osmium, iridium and platinum, from fresh ore, mine tailings and industrial wastes.
  • base metals such as cobalt, nickel, copper, lead, zinc, mercury and cadmium
  • precious metals such as silver and gold
  • platinum group metals comprising ruthenium, rhodium, palladium, osmium, iridium and platinum
  • Base metals, precious metals and the platinum group metals (PGM), are used in a broad spectrum of industrial applications. Their extraction or recovery is therefore of major importance.
  • base metals Co, Ni, Cu, Zn, Cd, Pb, Hg
  • precious metals Au
  • platinum group metals Ru, Rh, Pd, Os, Ir, Pt
  • the metallic species present either in the form of a free metal, an oxide, a silicate, a carbonate, a sulfide, an arsenosulfide or a polysulfide, will be transformed into a soluble chloride, if the ionic strength in chloride ions is at a sufficient level.
  • the ionic strength requirement in chloride ions will vary from metal to metal and will consequently be directly dependent on the requirements in chloride ion by the least soluble of the metal chlorides in a given mixture of metals.
  • the terminology "recovering" a desired compound or compounds or the like refers to such a desired compound or compounds or the like having been isolated from other components of a reaction mixture.
  • concentration well known in the art, refers to an acidic solution having a concentration equal to or higher than 15%.
  • Figure 1 is a block diagram illustrating the various steps of one embodiment of the method according to the present invention.
  • Figure 2 is a block diagram illustrating the various steps of a second embodiment of the method according to the present invention.
  • Figure 3 is a block diagram illustrating the various steps of a third embodiment of the method according to the present invention.
  • the conditions of chloridation vary with different metals, being as low as 100°C for nickel oxide and as high as 600 °C for the platinum group metals. While doing the chloridation, it is necessary to have the source of chloride ions, normally sodium chloride, present in the reaction mixture so as to have available in situ the chloride ion concentration required for the solubilisation at the time of leaching, upon completion of the chloridation step.
  • Sodium chloride is used but potassium chloride or calcium chloride can also be used.
  • the energy required to achieve chloridation will vary with the chemical reactivity of the metal or group of metals under consideration. To maintain the energy consumption at a minimum and taking into consideration the solubility characteristics of each metal, three levels of chloridation ability have been developed.
  • Low temperature (40-50 °C) chloridation with chlorine in the presence of a near saturated solution of sodium chloride is appropriate for metals such as Cu, Ag, Au, Cd, Hg, and Pb, these metals showing a rather high reactivity but giving in some instances chlorides of very low solubilities.
  • High temperature (500-600 °C) chloridation with chlorine in the presence of a source of chloride ions, such as solid NaCl, KCI or CaCl2, (approximately 5% by weight) is required mainly for PGM.
  • Chloridation using hydrochloric acid at a temperature near 100 °C is appropriate for base metals, particularly when iron is present.
  • the operation is conducted in a near saturated solution of either NaCl, KCI or CaCl2 and the precious metals are readily recovered over activated carbon, while the residual base metals are obtained by electrolysis, leaving behind a barren solution.
  • the near saturated salt solution is then recycled for further operation.
  • the base metals can be extracted by electrolysis. The remaining so-called barren solution is recycled allowing for the recovery of the source of chloride ions and concentrated HCI, for further operation.
  • the substrate may contain substantial amounts of iron in the form of sulfides (pyrites, etc.), oxides (limonites, etc.) or metallic iron.
  • the chloridation will transform part of this iron into ferric chloride and in doing so, will consume significant amounts of chlorine.
  • the acid solution of ferric chloride and other metallic chlorides is evaporated and heated at temperatures of 200-250 °C while in the presence of moisture. Under such conditions the ferric chloride is subjected to hydrolysis, resulting in its transformation to ferric oxide with the concomitant liberation of HCI as is shown by the following equation:
  • NiCl2, CoCi2, CuCl2, PbCl2, AgCI, ZnCl2, HgCl2 and CdCl2 are not affected by this mild hydrolysis. All of these chlorides can be separated from the ferric oxide by leaching with water. They can then be individually separated and isolated by techniques such as selective electrolysis (Cu, Ni, Co) and selective sulfide or pH adjustment precipitations, techniques well known by those familiar in the art.
  • the barren solution is subjected to electrolysis, resulting in the production of chlorine gas that is also recycled to the chloridation step.
  • the electrolytic procedure leads to the formation of sodium hydroxide (NaOH), in equimolar amounts to the generated chlorine gas.
  • NaOH sodium hydroxide
  • the sodium hydroxide is collected and used to treat the barren solution upon completion of the recovery of the metal values.
  • the presence of a high chloride concentration is a basic requirement for the implementation of the invention. It has been established that the chloridation of Au and Ag using chlorine gas could be carried out at low temperatures (30-50 °C)when in the presence of a near saturated solution of sodium chloride. It is noted that near saturated solutions of potassium chloride or calcium chloride are also effective. In the case of the platinoids, however, the chloridation with chlorine gas must be performed at temperatures ranging from 500-600 °C while in the presence of a solid source of chloride ions, achieved by the addition of about 5% by weight of sodium chloride. It is also noted that the solid source of chloride ions can also be potassium chloride or calcium chloride, used in the same proportions.
  • This chloridation procedure is followed by a lixiviation step using hydrochloric acid.
  • the chloridation procedure can be effected with hydrochloric acid.
  • the main group metals Cd, Hg, Pb
  • a strong chloride concentration such as for example a near saturated sodium chloride solution.
  • the operation of the system calls for a closed circuit approach, more specifically: 1.
  • the near saturated solution of NaCl, KCI or CaCl2 in the low temperature chloridation procedure is recycled to the system after removal of the leached metal values by activated carbon (Au, Ag) and electrolysis (Cu, Ag, Cd, Hg, Pb).
  • the high temperature chloridation gives a leach in concentrated hydrochloric acid.
  • the hydrochloric acid is recycled after removal of the metal values (mainly the platinum group metals) by electrolysis, by activated carbon or by specific ion exchange resins under acidic conditions.
  • the hydrochloric acid used in the chloridation of the base metals is recycled by the mild thermal treatment of ferric chloride.
  • the chloridation process while in the presence of a high concentration of chloride ions, offers flexible avenues to the low cost extraction of a wide variety of metals, such as base metals, platinum group metals and precious metals.
  • the strength of the reagents (CI2 or HCI) and the operating temperatures (40-50 °C or 500-600 °C) are adaptable to the sample at hand and hence the combination of metals to be recovered.
  • a 50.0 g sample of ashes was placed in a tubing, known under the trademark Vycor, after being well mixed with a 4.0 g sample of sodium chloride.
  • the sample was then heated in an electric furnace for 4 hours at a temperature of 575 °C.
  • a slow stream of nitrogen (20 ml/min) charged with chlorine gas, was circulated through the Vycor tube.
  • the chlorine gas was generated via the electrolysis of a solution of sodium chloride (35.0 g) in 15 % HCI (250 ml).
  • the nitrogen stream first vented the anodic compartment before reaching the reaction tube (current of 5.0 amp, 4.5 volts, anode of graphite). Approximately 0.35 moles of chlorine gas were produced.
  • the sample was cooled and extracted with 15% HCI (150 ml) and heated to approximately 100 °C for one hour.
  • the reaction mixture was then filtered, to produce an acidic solution of metal chlorides and a residue.
  • the solid residue, while wet, was taken up with a saturated NaCl solution (200 ml) and heated at 100 °C for one hour and filtered and rinsed with two 20 ml portions of a saturated NaCl solution.
  • the acid solution and the salt solution were then analyzed for their metal content.
  • the ashes were analyzed for any residual metal values.
  • the acid solution was revealed to contain 97% of the gold, 12% of the silver, 98% of the platinum, 99% of the palladium, 12% of the iron, 96% of the copper, 85% of the zinc and 92% of the nickel present in the initial ashes.
  • the sodium chloride rinsings contained 84% of the initial amount of silver.
  • Contacting the acid solution with activated carbon (25 g; Norit A) resulted in the removal of Au, Pt and Pd below detectable level (0.001 ppm). After removal of the precious metals by activated carbon, the acidic solution was evaporated to dryness and the resulting solid heated up to 250 °C. The hydrochloric acid produced in the heating process was collected and recycled. The residual solid was rinsed with water and the extracted base metals (in the present example copper chloride) collected as sulfides.
  • the combined filtrate and rinsings were then contacted with activated carbon (10 g) over a period of one hour and the carbon filtered and dried.
  • activated carbon (10 g)
  • a subsequent analysis of the carbon and residual solution indicated that 96% of the gold and 75% of the silver initially present in the tailings were collected on the carbon.
  • the residual solution was submitted to electrolysis (2.0 V, 1.0 amp.) using a copper cathode. After 15 minutes, all of the mercury and all of the residual silver were deposited on the cathode.
  • a 50 g sample of ore from the Pachuca mine, located in the province of Hidalgo (Mexico) containing Pb: 0.9% and Ag 42 g/T was treated in a manner similar to Example 2.

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

Abstract

L'invention porte sur un procédé de récupération de métaux de base tels que le cobalt, nickel, fer, zinc, mercure et cadmium, et de métaux précieux tels que l'argent et l'or, ainsi que des métaux du groupe platine tels que le ruthénium, rhodium, palladium, osmium, iridium et platine à partir de minerai frais, de déchets de mine et de déchets industriels. Ce procédé comprend plusieurs étapes et consiste à analyser le minerai, les déchets de mine ou les déchets industriels afin de déterminer la présence d'un ou plusieurs des métaux précités ; chlorurer le minerai à un titre déterminé par la présence du plus réfractaire des métaux définis par l'étape d'analyse, en présence d'une source d'ions de chlorure dans une quantité déterminée par les métaux présents de façon à former une solution de chlorures métalliques et d'un résidu stérile ; séparer la solution de chlorures métalliques du résidu de façon à produire une solution filtrée de chlorures métalliques ; récupérer les chlorures métalliques de la solution filtrée de façon à obtenir une solution stérile ; recycler la source d'ions de chlorure. Selon une réalisation préférée, le processus de chloruration est réalisé avec un chlore à des températures comprises entre 40 et 50 °C en présence d'une solution quasi saturée de NaCI, KCI ou CaCI2. Selon une seconde réalisation préférée, le processus de chloruration est réalisé avec un chlore à des températures comprises entre 500 et 600 °C en présence d'environ 5 % de NaCI, KCI ou CaCI2 solide. Selon une troisième réalisation préférée, le processus de chloruration est réalisé avec un acide hydrochlorique concentré à des températures s'élevant à environ 100 °C.
PCT/CA2000/001590 2000-12-29 2000-12-29 Procede de recuperation de metaux de base et de metaux precieux par chloruration extractive Ceased WO2002053788A1 (fr)

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2395446A (en) * 2002-10-08 2004-05-26 Sumitomo Metal Mining Co Process for the separation recovery of platinum group metals
WO2005007903A1 (fr) * 2003-07-22 2005-01-27 Ressources Minieres Pro-Or Inc. Procede de recuperation de metaux du groupe platine a partir de minerais et de concentres
RU2291907C1 (ru) * 2006-01-10 2007-01-20 Закрытое Акционерное Общество "Уралкалий-Технология" Способ извлечения благородных металлов
WO2007106969A1 (fr) * 2006-03-17 2007-09-27 Nichromet Extraction Inc. Processus de récupération de d'espèces métalliques de valeur dans des minerais latéritiques
US7537741B2 (en) 2003-02-12 2009-05-26 Nichromet Extraction Inc. Gold and silver recovery from polymetallic sulfides by treatment with halogens
WO2008131856A3 (fr) * 2007-04-26 2009-06-25 Bayer Materialscience Ag Procédé de récupération de ruthénium à partir d'un matériau de catalyseur supporté contenant du ruthénium
RU2386710C1 (ru) * 2008-09-29 2010-04-20 Закрытое Акционерное Общество "Уралкалий-Технология" Способ извлечения благородных металлов
RU2393243C2 (ru) * 2008-09-29 2010-06-27 Закрытое Акционерное Общество "Уралкалий-Технология" Способ переработки минерального сырья
RU2394109C1 (ru) * 2009-01-11 2010-07-10 Закрытое Акционерное Общество "Уралкалий-Технология" Способ сорбционного извлечения благородных металлов
US8092573B2 (en) * 2006-07-12 2012-01-10 Cvmr Corporation Purification of PGM species from mixtures thereof
RU2441929C1 (ru) * 2010-12-07 2012-02-10 Учреждение Российской академии наук Институт химии и химической технологии Сибирского отделения РАН (ИХХТ СО РАН) Способ извлечения золота, платины и палладия из солянокислых растворов
JP2013112857A (ja) * 2011-11-29 2013-06-10 Jx Nippon Mining & Metals Corp イリジウムの回収方法
DE102008006797B4 (de) * 2008-01-30 2014-05-22 Heraeus Precious Metals Gmbh & Co. Kg Verfahren und Vorrichtungen zum Entfernen von Ruthenium durch Destillation als RuO4 aus ruthenathaltigen Lösungen
CN104209182A (zh) * 2014-09-12 2014-12-17 广西华锡集团股份有限公司 一种富集尾矿中有价金属矿物的方法
US8961649B2 (en) 2007-08-29 2015-02-24 Vale Canada Limited System and method for extracting base metal values from oxide ores
RU2694855C1 (ru) * 2019-02-22 2019-07-17 Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" Способ отделения платины (ii, iv) и палладия (ii) от серебра (i), железа (iii) и меди (ii) в солянокислых растворах
US10648062B1 (en) * 2017-03-23 2020-05-12 George Meyer Strategic metal and mineral element ore processing using mixing and oxidant treatment
CN114275954A (zh) * 2021-11-29 2022-04-05 徐州华东纺织浆料有限公司 一种人造纤维浆粕生产用提高烧碱回收率组件
CN115838870A (zh) * 2022-10-18 2023-03-24 江苏联环药业股份有限公司 一种爱普列特生产废液中钯富集的方法
WO2024259327A3 (fr) * 2023-06-16 2025-01-23 C-Crete Technologies Llc Procédés d'isolement de précurseurs cimentaires

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB452832A (en) * 1936-01-31 1936-08-31 Mines Reunies Improvements in process of extracting precious metals, more particularly applicable to the treatment of poor ores or materials
CA1228989A (fr) * 1984-10-05 1987-11-10 Philip A. Distin Extraction des metaux precieux presents dans des matieres
US4723998A (en) * 1985-11-29 1988-02-09 Freeport Minerals Co Recovery of gold from carbonaceous ores by simultaneous chlorine leach and ion exchange resin adsorption process

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB452832A (en) * 1936-01-31 1936-08-31 Mines Reunies Improvements in process of extracting precious metals, more particularly applicable to the treatment of poor ores or materials
CA1228989A (fr) * 1984-10-05 1987-11-10 Philip A. Distin Extraction des metaux precieux presents dans des matieres
US4723998A (en) * 1985-11-29 1988-02-09 Freeport Minerals Co Recovery of gold from carbonaceous ores by simultaneous chlorine leach and ion exchange resin adsorption process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
VINALS J ET AL: "LEACHING OF GOLD, SILVER AND LEAD FROM PLUMBOJAROSITE-CONTAINING HEMATITE TAILINGS IN HCL-CACL2 MEDIA", HYDROMETALLURGY, ELSEVIER SCIENTIFIC PUBLISHING CY. AMSTERDAM, NL, vol. 26, no. 2, 1 March 1991 (1991-03-01), pages 179 - 199, XP000201577, ISSN: 0304-386X *

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2395446B (en) * 2002-10-08 2006-02-01 Sumitomo Metal Mining Co Process for separation/recovery of platinum group metals
GB2395446A (en) * 2002-10-08 2004-05-26 Sumitomo Metal Mining Co Process for the separation recovery of platinum group metals
US7537741B2 (en) 2003-02-12 2009-05-26 Nichromet Extraction Inc. Gold and silver recovery from polymetallic sulfides by treatment with halogens
WO2005007903A1 (fr) * 2003-07-22 2005-01-27 Ressources Minieres Pro-Or Inc. Procede de recuperation de metaux du groupe platine a partir de minerais et de concentres
US7972412B2 (en) * 2003-07-22 2011-07-05 Ressources Minieres Pro-Or Inc. Process for recovering platinum group metals from ores and concentrates
US7846234B2 (en) 2006-01-10 2010-12-07 Viktor Andreevich Sinegribov Method of precious metal recovery
RU2291907C1 (ru) * 2006-01-10 2007-01-20 Закрытое Акционерное Общество "Уралкалий-Технология" Способ извлечения благородных металлов
WO2007081243A3 (fr) * 2006-01-10 2007-10-25 Zakrytoe Akcionernoe Obshestvo Procédé d'extraction de métaux nobles
WO2007106969A1 (fr) * 2006-03-17 2007-09-27 Nichromet Extraction Inc. Processus de récupération de d'espèces métalliques de valeur dans des minerais latéritiques
US8092573B2 (en) * 2006-07-12 2012-01-10 Cvmr Corporation Purification of PGM species from mixtures thereof
WO2008131856A3 (fr) * 2007-04-26 2009-06-25 Bayer Materialscience Ag Procédé de récupération de ruthénium à partir d'un matériau de catalyseur supporté contenant du ruthénium
US8961649B2 (en) 2007-08-29 2015-02-24 Vale Canada Limited System and method for extracting base metal values from oxide ores
DE102008006797B4 (de) * 2008-01-30 2014-05-22 Heraeus Precious Metals Gmbh & Co. Kg Verfahren und Vorrichtungen zum Entfernen von Ruthenium durch Destillation als RuO4 aus ruthenathaltigen Lösungen
RU2386710C1 (ru) * 2008-09-29 2010-04-20 Закрытое Акционерное Общество "Уралкалий-Технология" Способ извлечения благородных металлов
RU2393243C2 (ru) * 2008-09-29 2010-06-27 Закрытое Акционерное Общество "Уралкалий-Технология" Способ переработки минерального сырья
RU2394109C1 (ru) * 2009-01-11 2010-07-10 Закрытое Акционерное Общество "Уралкалий-Технология" Способ сорбционного извлечения благородных металлов
WO2010080050A1 (fr) * 2009-01-11 2010-07-15 Закрытое Акционерное Общество "Уралкалий-Технология" Procédé de séparation par sorption de métaux nobles
RU2441929C1 (ru) * 2010-12-07 2012-02-10 Учреждение Российской академии наук Институт химии и химической технологии Сибирского отделения РАН (ИХХТ СО РАН) Способ извлечения золота, платины и палладия из солянокислых растворов
JP2013112857A (ja) * 2011-11-29 2013-06-10 Jx Nippon Mining & Metals Corp イリジウムの回収方法
CN104209182A (zh) * 2014-09-12 2014-12-17 广西华锡集团股份有限公司 一种富集尾矿中有价金属矿物的方法
US10648062B1 (en) * 2017-03-23 2020-05-12 George Meyer Strategic metal and mineral element ore processing using mixing and oxidant treatment
RU2694855C1 (ru) * 2019-02-22 2019-07-17 Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" Способ отделения платины (ii, iv) и палладия (ii) от серебра (i), железа (iii) и меди (ii) в солянокислых растворах
CN114275954A (zh) * 2021-11-29 2022-04-05 徐州华东纺织浆料有限公司 一种人造纤维浆粕生产用提高烧碱回收率组件
CN115838870A (zh) * 2022-10-18 2023-03-24 江苏联环药业股份有限公司 一种爱普列特生产废液中钯富集的方法
CN115838870B (zh) * 2022-10-18 2024-05-17 江苏联环药业股份有限公司 一种爱普列特生产废液中钯富集的方法
WO2024259327A3 (fr) * 2023-06-16 2025-01-23 C-Crete Technologies Llc Procédés d'isolement de précurseurs cimentaires

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