BR9501781A - Processo para a preparação de concentração de tântalo - Google Patents

Processo para a preparação de concentração de tântalo

Info

Publication number
BR9501781A
BR9501781A BR9501781A BR9501781A BR9501781A BR 9501781 A BR9501781 A BR 9501781A BR 9501781 A BR9501781 A BR 9501781A BR 9501781 A BR9501781 A BR 9501781A BR 9501781 A BR9501781 A BR 9501781A
Authority
BR
Brazil
Prior art keywords
tantalum concentration
preparing tantalum
preparing
concentration
tantalum
Prior art date
Application number
BR9501781A
Other languages
English (en)
Inventor
Joachim Dr Eckert
Kurt Tolle
Jochen Weber
Klaus Dr Rieger
Original Assignee
Starck H C Gmbh Co Kg
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 Starck H C Gmbh Co Kg filed Critical Starck H C Gmbh Co Kg
Publication of BR9501781A publication Critical patent/BR9501781A/pt

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

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)
BR9501781A 1994-04-27 1995-04-25 Processo para a preparação de concentração de tântalo BR9501781A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4414571A DE4414571C1 (de) 1994-04-27 1994-04-27 Verfahren zur Herstellung von Tantal-Niob-Konzentraten

Publications (1)

Publication Number Publication Date
BR9501781A true BR9501781A (pt) 1995-11-21

Family

ID=6516492

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9501781A BR9501781A (pt) 1994-04-27 1995-04-25 Processo para a preparação de concentração de tântalo

Country Status (3)

Country Link
US (1) US5573572A (pt)
BR (1) BR9501781A (pt)
DE (1) DE4414571C1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6348113B1 (en) 1998-11-25 2002-02-19 Cabot Corporation High purity tantalum, products containing the same, and methods of making the same
EP1287172B1 (en) 2000-05-22 2008-10-29 Cabot Corporation High purity niobium and products containing the same, and methods of making the same
US8333923B2 (en) * 2007-02-28 2012-12-18 Caterpillar Inc. High strength gray cast iron
CN116334415B (zh) * 2023-05-25 2023-08-15 北京科技大学 一种提高贫铌渣品位的方法与设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2209427A (en) * 1939-08-03 1940-07-30 Swanson Ziegner Musical instrument for playing bugle calls
US2909427A (en) * 1958-07-22 1959-10-20 Vanadium Corp Of America Process of making ferrocolumbium from columbite ore
US3721727A (en) * 1971-09-09 1973-03-20 Kawecki Berylco Ind Electric furnace method of beneficiating tantalum-and noibium-containing tin slags and the like
DE2733193C2 (de) * 1977-07-22 1986-10-23 Hermann C. Starck Berlin, 1000 Berlin Verfahren zur Gewinnung von Tantal-Niob-Eisenlegierungen aus hochtitanhaltigen Niob-Tantalerzen, -schlacken oder -rückständen mit üblichen Zinngehalten
LU78341A1 (pt) * 1977-10-19 1979-02-02
US5322548A (en) * 1991-06-27 1994-06-21 Teledyne Industries, Inc. Recovery of niobium metal

Also Published As

Publication number Publication date
DE4414571C1 (de) 1996-01-18
US5573572A (en) 1996-11-12

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Legal Events

Date Code Title Description
EG Technical examination (opinion): publication of technical examination (opinion)
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 25/04/2015