GB746061A - Improvements in or relating to the manufacture of tantalum powder - Google Patents

Improvements in or relating to the manufacture of tantalum powder

Info

Publication number
GB746061A
GB746061A GB2384853A GB2384853A GB746061A GB 746061 A GB746061 A GB 746061A GB 2384853 A GB2384853 A GB 2384853A GB 2384853 A GB2384853 A GB 2384853A GB 746061 A GB746061 A GB 746061A
Authority
GB
United Kingdom
Prior art keywords
powder
hydrogen
tantalum powder
allowing
inert gas
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.)
Expired
Application number
GB2384853A
Inventor
Harold Ffyner Collender
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.)
Plessey Co Ltd
Original Assignee
Plessey 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB2384853A priority Critical patent/GB746061A/en
Publication of GB746061A publication Critical patent/GB746061A/en
Expired 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
    • C22B34/20—Obtaining niobium, tantalum or vanadium
    • C22B34/24—Obtaining niobium or tantalum

Abstract

A process for the production of tantalum powder comprises subjecting a tantalum powder to physical conditions which will remove gaseous impurities, allowing the powder to absorb hydrogen, disintegrating the powder to a fine state, subjecting the fine powder to physical conditions sufficient to remove the adsorbed hydrogen and allowing the powder to adsorb an inert gas. The gases may be removed by heating the powders by eddy currents in a molybdenum crucible to 1700-2000 DEG C. under a pressure of 10-5 m.m. of mercury. Hydrogen or the inert gas, e.g. argon or dry air, may be added to the vacuum chamber which is allowed to return to atmospheric temperature and pressure. The powder finally produced is stated to be particularly suitable for the production of capacitors.
GB2384853A 1953-08-28 1953-08-28 Improvements in or relating to the manufacture of tantalum powder Expired GB746061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2384853A GB746061A (en) 1953-08-28 1953-08-28 Improvements in or relating to the manufacture of tantalum powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2384853A GB746061A (en) 1953-08-28 1953-08-28 Improvements in or relating to the manufacture of tantalum powder

Publications (1)

Publication Number Publication Date
GB746061A true GB746061A (en) 1956-03-07

Family

ID=10202287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2384853A Expired GB746061A (en) 1953-08-28 1953-08-28 Improvements in or relating to the manufacture of tantalum powder

Country Status (1)

Country Link
GB (1) GB746061A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295951A (en) * 1965-02-02 1967-01-03 Nat Res Corp Production of metals
US3635693A (en) * 1969-01-27 1972-01-18 Starck Hermann C Fa Method of producing tantalum or niobium powder from compact bodies
US4441927A (en) * 1982-11-16 1984-04-10 Cabot Corporation Tantalum powder composition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295951A (en) * 1965-02-02 1967-01-03 Nat Res Corp Production of metals
US3635693A (en) * 1969-01-27 1972-01-18 Starck Hermann C Fa Method of producing tantalum or niobium powder from compact bodies
US4441927A (en) * 1982-11-16 1984-04-10 Cabot Corporation Tantalum powder composition

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