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WO2007020338A3 - Method of preparing calcium tungstate, vanadate and molybdate and mixtures of same - Google Patents

Method of preparing calcium tungstate, vanadate and molybdate and mixtures of same Download PDF

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Publication number
WO2007020338A3
WO2007020338A3 PCT/FR2006/001840 FR2006001840W WO2007020338A3 WO 2007020338 A3 WO2007020338 A3 WO 2007020338A3 FR 2006001840 W FR2006001840 W FR 2006001840W WO 2007020338 A3 WO2007020338 A3 WO 2007020338A3
Authority
WO
WIPO (PCT)
Prior art keywords
calcium
mixtures
same
vanadate
molybdate
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/FR2006/001840
Other languages
French (fr)
Other versions
WO2007020338A2 (en
Inventor
Lyonel Picard
Charles-Elie Lefaucheur
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.)
VALDI
Original Assignee
VALDI
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 VALDI filed Critical VALDI
Priority to EP06794235A priority Critical patent/EP1922425A2/en
Publication of WO2007020338A2 publication Critical patent/WO2007020338A2/en
Publication of WO2007020338A3 publication Critical patent/WO2007020338A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G39/00—Compounds of molybdenum
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G31/00—Compounds of vanadium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G41/00—Compounds of tungsten
    • 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
    • C22B34/22—Obtaining vanadium
    • C22B34/225—Obtaining vanadium 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/34—Obtaining molybdenum
    • C22B34/345—Obtaining molybdenum 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/36—Obtaining tungsten
    • C22B34/365—Obtaining tungsten 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
    • 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
    • C22B7/006—Wet processes
    • C22B7/008—Wet processes by an alkaline or ammoniacal 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
    • 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
    • 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)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Catalysts (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention relates to a method of preparing calcium salts from the group containing calcium molybdate, calcium vanadate, calcium tungstate and mixtures of same. The inventive method is characterised in that it comprises the following steps consisting in: a) using spent catalysts comprising a metal or a combination of metals, selected from among molybdenum, vanadium, tungsten and mixtures of same; b) roasting the spent catalysts from step (a) at a temperature varying between 700 and 1100 °C in excess air in order to obtain roasted catalysts and particulate matter; c) leaching the roasted catalysts and/or particulate matter obtained in step (b) using a base solution; d) purifying the aqueous leaching solution obtained in step (c) and comprising elements from the group containing molybdenum, vanadium, tungsten and mixtures of same, by means of treatment at neutral pH at approximately 90 °C; and e) precipitating the calcium salts from the group containing calcium molybdate, calcium vanadate, calcium tungstate and mixtures of same in the purified aqueous leaching solution obtained in step (d), using calcium compounds. The invention also relates to the use of calcium salts selected from among calcium molybdate (CaMoO4), calcium vanadate (CaV2O6), calcium tungsate (CaWO4) and mixtures of same, which are obtained using one such method for producing alloy steels.
PCT/FR2006/001840 2005-08-16 2006-07-27 Method of preparing calcium tungstate, vanadate and molybdate and mixtures of same Ceased WO2007020338A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06794235A EP1922425A2 (en) 2005-08-16 2006-07-27 Method of preparing calcium salts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0508556 2005-08-16
FR0508556A FR2889843B1 (en) 2005-08-16 2005-08-16 PROCESS FOR THE PREPARATION OF CALCIUM SALTS

Publications (2)

Publication Number Publication Date
WO2007020338A2 WO2007020338A2 (en) 2007-02-22
WO2007020338A3 true WO2007020338A3 (en) 2007-04-12

Family

ID=36470469

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2006/001840 Ceased WO2007020338A2 (en) 2005-08-16 2006-07-27 Method of preparing calcium tungstate, vanadate and molybdate and mixtures of same

Country Status (3)

Country Link
EP (1) EP1922425A2 (en)
FR (1) FR2889843B1 (en)
WO (1) WO2007020338A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6909419B2 (en) 1997-10-31 2005-06-21 Kopin Corporation Portable microdisplay system
JP5790525B2 (en) * 2012-02-06 2015-10-07 住友金属鉱山株式会社 Impurity removal method
CN102660274A (en) * 2012-05-04 2012-09-12 苏州大学 Vanadate single-matrix yellow fluorescent powder and preparation method thereof
CN102660275B (en) * 2012-05-04 2014-02-26 苏州大学 A kind of vanadate fluorescent powder, preparation method and application thereof
KR101281579B1 (en) * 2012-09-07 2013-07-03 한국지질자원연구원 Method of leaching valuable metal in spent catalyst of denitrification using roasting water leaching
CN110218868B (en) * 2019-06-28 2021-02-02 中南大学 Method for extracting tungsten or molybdenum from tungstate solution or molybdate solution
CN110453065B (en) * 2019-09-12 2020-12-15 内蒙古工业大学 Method for extracting vanadium from vanadium titanomagnetite, leaching solution containing sodium vanadate extracted by the method and application thereof
DE102021209409A1 (en) 2021-08-26 2023-03-02 Gfe Metalle Und Materialien Gmbh Process for the production of high purity vanadium chemicals from vanadium raw materials with high molybdenum contents
WO2024046540A1 (en) 2022-08-29 2024-03-07 Gfe Metalle Und Materialien Gmbh Method for preparing high-purity vanadium chemicals from vanadium raw materials having high molybdenum contents

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062677A (en) * 1976-09-16 1977-12-13 Reading Alloys, Inc. Tungsten-titanium-aluminum master alloy
US4145397A (en) * 1976-08-06 1979-03-20 Marubeni Corporation Process for recovering molybdenum, vanadium, cobalt and nickel from roasted products of used catalysts from hydrotreatment desulfurization of petroleum
US4278644A (en) * 1980-04-15 1981-07-14 Cabot Corporation Process for partitioning Mo and W from a mixed CaMoO4 -CaWO4 precipitate
JPS5964712A (en) * 1982-10-04 1984-04-12 Daido Steel Co Ltd Alloy addition method
FR2611745A1 (en) * 1987-02-27 1988-09-09 Inst Francais Du Petrole Process for selectively recovering a mixture of vanadium, molybdenum and/or tungsten from a deactivated catalyst originating from the treatment of a petroleum hydrocarbon feedstock
US5013533A (en) * 1990-03-01 1991-05-07 Howard Robert A Process for recovering valuable metals from spent catalysts
EP0487379A2 (en) * 1990-11-12 1992-05-27 Institut Francais Du Petrole Method of anti-pollution treatment of a used refining catalyst and complete recuperation of the different metal constituents of this catalyst
EP0487368A2 (en) * 1990-10-30 1992-05-27 Institut Français du Pétrole Antipolluting treatment of a used refining catalyst and recuperation of metals
EP0771881A1 (en) * 1995-11-02 1997-05-07 Gulf Chemical & Metallurgical Corporation An integrated process for the recovery of metals and fused alumina from spent catalysts

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4145397A (en) * 1976-08-06 1979-03-20 Marubeni Corporation Process for recovering molybdenum, vanadium, cobalt and nickel from roasted products of used catalysts from hydrotreatment desulfurization of petroleum
US4062677A (en) * 1976-09-16 1977-12-13 Reading Alloys, Inc. Tungsten-titanium-aluminum master alloy
US4278644A (en) * 1980-04-15 1981-07-14 Cabot Corporation Process for partitioning Mo and W from a mixed CaMoO4 -CaWO4 precipitate
JPS5964712A (en) * 1982-10-04 1984-04-12 Daido Steel Co Ltd Alloy addition method
FR2611745A1 (en) * 1987-02-27 1988-09-09 Inst Francais Du Petrole Process for selectively recovering a mixture of vanadium, molybdenum and/or tungsten from a deactivated catalyst originating from the treatment of a petroleum hydrocarbon feedstock
US5013533A (en) * 1990-03-01 1991-05-07 Howard Robert A Process for recovering valuable metals from spent catalysts
EP0487368A2 (en) * 1990-10-30 1992-05-27 Institut Français du Pétrole Antipolluting treatment of a used refining catalyst and recuperation of metals
EP0487379A2 (en) * 1990-11-12 1992-05-27 Institut Francais Du Petrole Method of anti-pollution treatment of a used refining catalyst and complete recuperation of the different metal constituents of this catalyst
EP0771881A1 (en) * 1995-11-02 1997-05-07 Gulf Chemical & Metallurgical Corporation An integrated process for the recovery of metals and fused alumina from spent catalysts

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 198421, Derwent World Patents Index; Class M24, AN 1984-130225, XP002384350 *

Also Published As

Publication number Publication date
EP1922425A2 (en) 2008-05-21
FR2889843B1 (en) 2007-10-19
WO2007020338A2 (en) 2007-02-22
FR2889843A1 (en) 2007-02-23

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