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WO2011052993A3 - Method for leaching impurities contained in molybdenum oxide concentrates - Google Patents

Method for leaching impurities contained in molybdenum oxide concentrates Download PDF

Info

Publication number
WO2011052993A3
WO2011052993A3 PCT/KR2010/007428 KR2010007428W WO2011052993A3 WO 2011052993 A3 WO2011052993 A3 WO 2011052993A3 KR 2010007428 W KR2010007428 W KR 2010007428W WO 2011052993 A3 WO2011052993 A3 WO 2011052993A3
Authority
WO
WIPO (PCT)
Prior art keywords
leaching
molybdenum oxide
present
leaching solution
ammonium chloride
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/KR2010/007428
Other languages
French (fr)
Korean (ko)
Other versions
WO2011052993A2 (en
Inventor
임경미
송진곤
허천회
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.)
KWANGYANG FERROALLOY CO Ltd
Original Assignee
KWANGYANG FERROALLOY CO Ltd
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 KWANGYANG FERROALLOY CO Ltd filed Critical KWANGYANG FERROALLOY CO Ltd
Publication of WO2011052993A2 publication Critical patent/WO2011052993A2/en
Publication of WO2011052993A3 publication Critical patent/WO2011052993A3/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
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/34—Obtaining molybdenum
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G39/00—Compounds of molybdenum
    • C01G39/02—Oxides; Hydroxides
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • 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

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

Abstract

The method for leaching impurities contained in molybdenum oxide concentrates according to the present invention comprises a step in which impurities in a molybdenum oxide concentrate are leached by the use of a leaching solution selected from the group consisting of a first leaching solution comprising ammonium chloride, sodium chloride and hydrochloric acid, a second leaching solution comprising ammonium chloride, calcium chloride and hydrochloric acid, and a third leaching solution comprising ammonium chloride, sodium chloride, calcium chloride and hydrochloric acid. The leaching method according to the present invention has the advantage that it dispenses with the need for or minimises processing carried out in order to recover molybdenum dissolved in the leaching solution, since the majority of the molybdenum oxide concentrate is present in solid form after the leaching has been completed. Also, because the amount of ammonium chloride used is reduced, the leaching method according to the present invention can be expected to have the advantage of improved water quality, since it has the effect of reducing the total amount of nitrogen in the waste water which is discharged.
PCT/KR2010/007428 2009-10-28 2010-10-27 Method for leaching impurities contained in molybdenum oxide concentrates Ceased WO2011052993A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090102827A KR20110046024A (en) 2009-10-28 2009-10-28 Leaching method of impurities contained in molybdenum oxide concentrate
KR10-2009-0102827 2009-10-28

Publications (2)

Publication Number Publication Date
WO2011052993A2 WO2011052993A2 (en) 2011-05-05
WO2011052993A3 true WO2011052993A3 (en) 2011-10-27

Family

ID=43922825

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/007428 Ceased WO2011052993A2 (en) 2009-10-28 2010-10-27 Method for leaching impurities contained in molybdenum oxide concentrates

Country Status (2)

Country Link
KR (1) KR20110046024A (en)
WO (1) WO2011052993A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083921A (en) * 1977-01-03 1978-04-11 Kennecott Copper Corporation Purifying molybdenum flotation concentrates
KR20040019292A (en) * 2001-05-09 2004-03-05 하.체. 스타르크 게엠베하 Production of Pure Molybdenum Oxide from Low Grade Molybdenite Concentrates
KR20080064516A (en) * 2007-01-05 2008-07-09 서울샤프중공업 주식회사 Method and system for removing copper contained in molybdenum oxide
US20080166280A1 (en) * 2006-11-16 2008-07-10 Albemarle Netherlands B.V. Purification Of Molybdenum Technical Oxide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083921A (en) * 1977-01-03 1978-04-11 Kennecott Copper Corporation Purifying molybdenum flotation concentrates
KR20040019292A (en) * 2001-05-09 2004-03-05 하.체. 스타르크 게엠베하 Production of Pure Molybdenum Oxide from Low Grade Molybdenite Concentrates
US20080166280A1 (en) * 2006-11-16 2008-07-10 Albemarle Netherlands B.V. Purification Of Molybdenum Technical Oxide
KR20080064516A (en) * 2007-01-05 2008-07-09 서울샤프중공업 주식회사 Method and system for removing copper contained in molybdenum oxide

Also Published As

Publication number Publication date
KR20110046024A (en) 2011-05-04
WO2011052993A2 (en) 2011-05-05

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