GB881997A - Production of tantalum powder - Google Patents

Production of tantalum powder

Info

Publication number
GB881997A
GB881997A GB17096/59A GB1709659A GB881997A GB 881997 A GB881997 A GB 881997A GB 17096/59 A GB17096/59 A GB 17096/59A GB 1709659 A GB1709659 A GB 1709659A GB 881997 A GB881997 A GB 881997A
Authority
GB
United Kingdom
Prior art keywords
bath
employed
tantalum powder
sulphuric acid
fluotantalate
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
GB17096/59A
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.)
NAT RES CORP
National Research Corp
Original Assignee
NAT RES CORP
National Research 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 NAT RES CORP, National Research Corp filed Critical NAT RES CORP
Publication of GB881997A publication Critical patent/GB881997A/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

Tantalum powder is produced from a bath of molten potassium fluotantalate at above 800 DEG C. by reduction with molten sodium, the latter being fed to the surface of the bath at a rate exceeding one pound per square foot per hour; sufficient agitation is employed to prevent any substantial stratification of the fluotantalate and the by-product salts. A suitable form of apparatus is described in which a propeller rotating in a horizontal plane is employed in conjunction with vertical baffles to produce circulation of the bath. The products of the reaction are leached successively with solutions containing sulphuric acid and aluminium sulphate, hydrofluoric acid and hydrogen peroxide, and sulphuric acid.
GB17096/59A 1958-06-13 1959-05-20 Production of tantalum powder Expired GB881997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US881997XA 1958-06-13 1958-06-13

Publications (1)

Publication Number Publication Date
GB881997A true GB881997A (en) 1961-11-08

Family

ID=22209958

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17096/59A Expired GB881997A (en) 1958-06-13 1959-05-20 Production of tantalum powder

Country Status (1)

Country Link
GB (1) GB881997A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4676342A (en) * 1985-01-31 1987-06-30 Rainer Godde Trestle ladder
GB2188944A (en) * 1986-03-04 1987-10-14 Cabot Corp Tantalum powder process
GB2233349A (en) * 1989-06-26 1991-01-09 Cabot Corp Powders and products of tantalum, niobium and their alloys
US5242481A (en) * 1989-06-26 1993-09-07 Cabot Corporation Method of making powders and products of tantalum and niobium

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4676342A (en) * 1985-01-31 1987-06-30 Rainer Godde Trestle ladder
GB2188944A (en) * 1986-03-04 1987-10-14 Cabot Corp Tantalum powder process
GB2188944B (en) * 1986-03-04 1991-02-06 Cabot Corp Tantalum powder process
GB2233349A (en) * 1989-06-26 1991-01-09 Cabot Corp Powders and products of tantalum, niobium and their alloys
US5242481A (en) * 1989-06-26 1993-09-07 Cabot Corporation Method of making powders and products of tantalum and niobium
GB2233349B (en) * 1989-06-26 1994-03-02 Cabot Corp Powders and products of tantalum,niobium and their alloys
US5580516A (en) * 1989-06-26 1996-12-03 Cabot Corporation Powders and products of tantalum, niobium and their alloys

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