IT952432B - Procedimento per l estrazione di tantalio e o niobio da minerali - Google Patents

Procedimento per l estrazione di tantalio e o niobio da minerali

Info

Publication number
IT952432B
IT952432B IT49297/72A IT4929772A IT952432B IT 952432 B IT952432 B IT 952432B IT 49297/72 A IT49297/72 A IT 49297/72A IT 4929772 A IT4929772 A IT 4929772A IT 952432 B IT952432 B IT 952432B
Authority
IT
Italy
Prior art keywords
niobio
minerals
tantalum
extraction
procedure
Prior art date
Application number
IT49297/72A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT952432B publication Critical patent/IT952432B/it

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
IT49297/72A 1971-03-29 1972-03-28 Procedimento per l estrazione di tantalio e o niobio da minerali IT952432B (it)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IT952432B true IT952432B (it) 1973-07-20

Family

ID=22436583

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49297/72A IT952432B (it) 1971-03-29 1972-03-28 Procedimento per l estrazione di tantalio e o niobio da minerali

Country Status (14)

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

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
US5620936A (en) * 1993-12-14 1997-04-15 E. I. Dupont De Nemours And Company Recovery of spent catalyst
EP0734354A1 (en) * 1993-12-14 1996-10-02 E.I. Du Pont 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
CN1097094C (zh) * 1996-03-26 2002-12-25 卡伯特公司 从含不溶氟化物的Ta－Nb金属矿中增溶金属成分的方法
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
WO2003046234A1 (fr) * 2001-11-29 2003-06-05 Viktor Borisovich Petrov Procede de transformation d'un concentre de loparite
RU2211871C1 (ru) * 2001-11-29 2003-09-10 Закрытое акционерное общество "Росредмет" Способ переработки лопаритового концентрата
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
NL7204177A (it) 1972-10-03
AT315521B (de) 1974-05-27
GB1363953A (en) 1974-08-21
CA966668A (en) 1975-04-29
DE2214817B2 (de) 1976-05-13
ZA722091B (en) 1972-12-27
FR2132127B1 (it) 1974-08-02
FR2132127A1 (it) 1972-11-17
LU65058A1 (it) 1972-12-07
SE436499B (sv) 1984-12-17
US3712939A (en) 1973-01-23
AU4047372A (en) 1973-10-04
AU469419B2 (en) 1973-10-04
NO129054B (it) 1974-02-18
DE2214817A1 (de) 1972-10-12
BE781343A (fr) 1972-09-28

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