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WO2008013479A3 - Method for refining precious metals - Google Patents

Method for refining precious metals Download PDF

Info

Publication number
WO2008013479A3
WO2008013479A3 PCT/RU2007/000401 RU2007000401W WO2008013479A3 WO 2008013479 A3 WO2008013479 A3 WO 2008013479A3 RU 2007000401 W RU2007000401 W RU 2007000401W WO 2008013479 A3 WO2008013479 A3 WO 2008013479A3
Authority
WO
WIPO (PCT)
Prior art keywords
precious metals
refining
melt
vacuum
refining precious
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/RU2007/000401
Other languages
French (fr)
Russian (ru)
Other versions
WO2008013479A2 (en
Inventor
Nikolay Victorovich Stepanov
Svetlana Evgenyevna Stelmak
Petr Anatolievich Aleksandrov
Valentin Nikolaevich Kosyakov
Mikhail Andreevich Pavlov
Vera Vladislavovna Litvinskaya
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2008013479A2 publication Critical patent/WO2008013479A2/en
Publication of WO2008013479A3 publication Critical patent/WO2008013479A3/en
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
    • C22B11/00—Obtaining noble metals
    • C22B11/02—Obtaining noble metals by dry 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
    • C22B11/00—Obtaining noble metals
    • C22B11/02—Obtaining noble metals by dry processes
    • C22B11/021—Recovery of noble metals from waste materials
    • C22B11/023—Recovery of noble metals from waste materials from pyrometallurgical residues, e.g. from ashes, dross, flue dust, mud, skim, slag, sludge
    • 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
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/04—Refining by applying a vacuum
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention relates to low-waste hydrometallurgy of precious metals, in particular to a method for refining precious metals and can be used for increasing the ratio of extraction of precious metals from alloys and to improve the purity thereof. The aim of the invention is to develop a method for refining precious metal-containing material in such a way that precious metals are extracted in a most complete manner and with a high-purity degree. The inventive method for refining precious metals consists in saturating a melt by means of a gas composition which consists of at least two gas components and is used for forming compounds with main metal impurities at a permanent superhigh pressure, in adsorbing saturation products in vacuum and in filtering said saturation products in vacuum by means of a filter, the heat temperature of which is greater than the temperature of the melt.
PCT/RU2007/000401 2006-07-28 2007-07-20 Method for refining precious metals Ceased WO2008013479A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2006127399A RU2318886C1 (en) 2006-07-28 2006-07-28 Noble metal refining method
RU2006127399 2006-07-28

Publications (2)

Publication Number Publication Date
WO2008013479A2 WO2008013479A2 (en) 2008-01-31
WO2008013479A3 true WO2008013479A3 (en) 2008-03-13

Family

ID=38981911

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2007/000401 Ceased WO2008013479A2 (en) 2006-07-28 2007-07-20 Method for refining precious metals

Country Status (2)

Country Link
RU (1) RU2318886C1 (en)
WO (1) WO2008013479A2 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1396270A (en) * 1973-03-12 1975-06-04 Int Nickel Canada Process for refining silver-bearing materials
EP0077128A1 (en) * 1981-09-16 1983-04-20 Matthey Rustenburg Refiners (Proprietary) Limited Recovery of platinum group metals from scrap and residues
RU2033447C1 (en) * 1991-03-14 1995-04-20 Научно-производственный комплекс "Суперметалл" Method of refining of noble metals and their alloys
RU2048554C1 (en) * 1992-05-13 1995-11-20 Крылов Владимир Владимирович Method for gold refining
RU2086685C1 (en) * 1995-12-14 1997-08-10 Акционерное общество открытого типа "Екатеринбургский завод по обработке цветных металлов" Method for pyrometallurgical refining gold- and silver-containing wastes
WO2001055462A1 (en) * 2000-01-28 2001-08-02 Umicore Process for refining silver bullion with gold separation
JP2006183099A (en) * 2004-12-28 2006-07-13 Nippon Mining & Metals Co Ltd Method for removing impurities in platinum

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1396270A (en) * 1973-03-12 1975-06-04 Int Nickel Canada Process for refining silver-bearing materials
EP0077128A1 (en) * 1981-09-16 1983-04-20 Matthey Rustenburg Refiners (Proprietary) Limited Recovery of platinum group metals from scrap and residues
RU2033447C1 (en) * 1991-03-14 1995-04-20 Научно-производственный комплекс "Суперметалл" Method of refining of noble metals and their alloys
RU2048554C1 (en) * 1992-05-13 1995-11-20 Крылов Владимир Владимирович Method for gold refining
RU2086685C1 (en) * 1995-12-14 1997-08-10 Акционерное общество открытого типа "Екатеринбургский завод по обработке цветных металлов" Method for pyrometallurgical refining gold- and silver-containing wastes
WO2001055462A1 (en) * 2000-01-28 2001-08-02 Umicore Process for refining silver bullion with gold separation
JP2006183099A (en) * 2004-12-28 2006-07-13 Nippon Mining & Metals Co Ltd Method for removing impurities in platinum

Also Published As

Publication number Publication date
RU2318886C1 (en) 2008-03-10
WO2008013479A2 (en) 2008-01-31

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