BE781343A - Procede pour extraire le tantale et, le cas echeant, le niobiumde minerais - Google Patents

Procede pour extraire le tantale et, le cas echeant, le niobiumde minerais

Info

Publication number
BE781343A
BE781343A BE781343A BE781343A BE781343A BE 781343 A BE781343 A BE 781343A BE 781343 A BE781343 A BE 781343A BE 781343 A BE781343 A BE 781343A BE 781343 A BE781343 A BE 781343A
Authority
BE
Belgium
Prior art keywords
niobium
ore
applicable
extracting tantalum
tantalum
Prior art date
Application number
BE781343A
Other languages
English (en)
French (fr)
Inventor
R H Capps
G S Harman
Original Assignee
Union Carbide 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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of BE781343A publication Critical patent/BE781343A/xx

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
    • C22B34/20—Obtaining niobium, tantalum or vanadium
    • C22B34/24—Obtaining niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G33/00—Compounds of niobium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G35/00—Compounds of tantalum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
BE781343A 1971-03-29 1972-03-28 Procede pour extraire le tantale et, le cas echeant, le niobiumde minerais BE781343A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12870671A 1971-03-29 1971-03-29

Publications (1)

Publication Number Publication Date
BE781343A true BE781343A (fr) 1972-09-28

Family

ID=22436583

Family Applications (1)

Application Number Title Priority Date Filing Date
BE781343A BE781343A (fr) 1971-03-29 1972-03-28 Procede pour extraire le tantale et, le cas echeant, le niobiumde minerais

Country Status (14)

Country Link
US (1) US3712939A (xx)
AT (1) AT315521B (xx)
AU (1) AU469419B2 (xx)
BE (1) BE781343A (xx)
CA (1) CA966668A (xx)
DE (1) DE2214817B2 (xx)
FR (1) FR2132127B1 (xx)
GB (1) GB1363953A (xx)
IT (1) IT952432B (xx)
LU (1) LU65058A1 (xx)
NL (1) NL7204177A (xx)
NO (1) NO129054B (xx)
SE (1) SE436499B (xx)
ZA (1) ZA722091B (xx)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK449074A (da) * 1974-08-22 1976-02-23 Atomenergikommissionen Fremgangsmade til udvinding af tantal og/eller niob i fri eller bunden form fra tantal- og niobholdige oplosninger
US4164417A (en) * 1978-04-28 1979-08-14 Kawecki Berylco Industries, Inc. Process for recovery of niobium values for use in preparing niobium alloy products
CA1144376A (fr) * 1980-06-02 1983-04-12 Gilles Legault Procede de lixiviation d'un minerai de niobium et ou de tantale
JPS62241824A (ja) * 1986-04-10 1987-10-22 Sumitomo Chem Co Ltd タンタルとニオブの分離精製方法
BR8703766A (pt) * 1987-07-20 1989-01-31 Mamore Mineracao E Metalurgica Processo para a abertura de minerios
FR2636939B1 (fr) * 1988-09-06 1991-08-30 Inst Nat Rech Chimique Procede perfectionne d'obtention de composes de ta et (ou) nb exempts d'impuretes a partir de materiaux contenant ces metaux
US5023059A (en) * 1988-11-02 1991-06-11 Bielecki Edwin J Recovery of metal values and hydrofluoric acid from tantalum and columbium waste sludge
DE4021207A1 (de) * 1990-07-03 1992-01-16 Starck Hermann C Fa Verfahren zur gewinnung und trennung von tantal und niob
DE4207145C1 (en) * 1992-03-06 1993-04-29 H.C. Starck Gmbh & Co Kg, 3380 Goslar, De Hydro:methallurgical process for recovery of tantalum and niobium - by digesting material e.g. columbite ore with hydrofluoric acid followed by solvent extn. of formed fluoro:complexes
US5437848A (en) * 1992-07-10 1995-08-01 Cabot Corporation Recovery of metal values from process residues
WO1995016635A1 (en) * 1993-12-14 1995-06-22 E.I. Du Pont De Nemours And Company Recovery of spent catalyst
US5620936A (en) * 1993-12-14 1997-04-15 E. I. Dupont De Nemours And Company Recovery of spent catalyst
US6338832B1 (en) * 1995-10-12 2002-01-15 Cabot Corporation Process for producing niobium and tantalum compounds
US5635146A (en) * 1995-11-30 1997-06-03 Osram Sylvania Inc. Method for the dissolution and purification of tantalum pentoxide
US7282187B1 (en) 1996-03-26 2007-10-16 Caboi Corporation Recovery of metal values
BR9710413A (pt) * 1996-03-26 1999-08-17 Cabot Corp M-todo para solubiliza-Æo de valores de metal em subst ncias de ta-nb-ore contendo fluoretos insolÚveis
US6843970B1 (en) 1996-03-26 2005-01-18 Cabot Corporation Process for recovering metal values by dissolving them in a sulfuric acid solution containing a carbon source and a reducing agent
US6010676A (en) * 1997-09-12 2000-01-04 Osram Sylvania Inc. Method for making a highly pure tantalum compound
US6383459B1 (en) 2000-08-31 2002-05-07 Osram Sylvania Inc. Method for purifying a tantalum compound using a fluoride compound and sulfuric acid
RU2211871C1 (ru) * 2001-11-29 2003-09-10 Закрытое акционерное общество "Росредмет" Способ переработки лопаритового концентрата
WO2003046234A1 (fr) * 2001-11-29 2003-06-05 Viktor Borisovich Petrov Procede de transformation d'un concentre de loparite
US7182925B2 (en) * 2003-04-24 2007-02-27 Osram Sylvania Inc. Tantalum concentrates dissolution and purification method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953453A (en) * 1958-06-20 1960-09-20 Nat Distillers Chem Corp Recovery of columbium values
US2950966A (en) * 1958-06-20 1960-08-30 Nat Distillers Chem Corp Recovery of tantalum values

Also Published As

Publication number Publication date
NO129054B (xx) 1974-02-18
ZA722091B (en) 1972-12-27
IT952432B (it) 1973-07-20
FR2132127A1 (xx) 1972-11-17
SE436499B (sv) 1984-12-17
NL7204177A (xx) 1972-10-03
US3712939A (en) 1973-01-23
LU65058A1 (xx) 1972-12-07
AU469419B2 (en) 1973-10-04
FR2132127B1 (xx) 1974-08-02
AT315521B (de) 1974-05-27
GB1363953A (en) 1974-08-21
AU4047372A (en) 1973-10-04
CA966668A (en) 1975-04-29
DE2214817A1 (de) 1972-10-12
DE2214817B2 (de) 1976-05-13

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: UNION CARBIDE CORP.

Effective date: 19920328