US947983A - Purifying tantalum. - Google Patents

Purifying tantalum. Download PDF

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Publication number
US947983A
US947983A US33715906A US1906337159A US947983A US 947983 A US947983 A US 947983A US 33715906 A US33715906 A US 33715906A US 1906337159 A US1906337159 A US 1906337159A US 947983 A US947983 A US 947983A
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US
United States
Prior art keywords
tantalum
cathode
purifying
anode
purifying tantalum
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 - Lifetime
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US33715906A
Inventor
Ezechiel Weintraub
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to US33715906A priority Critical patent/US947983A/en
Application granted granted Critical
Publication of US947983A publication Critical patent/US947983A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/34—Electrolytic production, recovery or refining of metals by electrolysis of melts of metals not provided for in groups C25C3/02 - C25C3/32

Definitions

  • My present invention comprises a process for purifying tantalum by electrolysis.
  • the process consists in the electrolysis of a molten salt, and more specifically, of the double salt,potassium tantalum fluorid-between an anode consisting of impure tantalum, and a cathode consisting of pure tantalum, or of other conductive and inert material.
  • the fluorid dissolves the tantalum while the impurities such as carbon, tantalum oxid, and similar substances fall to the bottom of the vessel.
  • the tantalum separates out as a coherent coating of pure metal, being the product of the reaction between the potassium, which separates primarily, and the double fluorid.
  • the composition of the electrolyte does notmaterially change, and the process can be continued indefinitely.
  • a vessel suitable for holding the fused salt may consist of 1 agnesium oxid or other refractory 'materh l, or even of tantalum oxid itself.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrolytic Production Of Metals (AREA)

Description

EEECHIEL WEINTRAUE, 0E SGHENECTADY, NEW YORK, ASSTGNOE. T0 GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.
runrrt'rns TANTALUM.
ti t? Edd.
No Drawing.
To all whom it may concern.
Be it known that T, EznorrneL 'VVEINTRAUB, a citizen of the United States, residing at Schenectady, county of Schenectady, State of New York, have invented certain new and useful Improvements in Purifying Tantalum, of which the following 1s a specitication.
My present invention comprises a process for purifying tantalum by electrolysis. The process consists in the electrolysis of a molten salt, and more specifically, of the double salt,potassium tantalum fluorid-between an anode consisting of impure tantalum, and a cathode consisting of pure tantalum, or of other conductive and inert material.
Art the anode, the fluorid dissolves the tantalum while the impurities such as carbon, tantalum oxid, and similar substances fall to the bottom of the vessel. At the cathode the tantalum separates out as a coherent coating of pure metal, being the product of the reaction between the potassium, which separates primarily, and the double fluorid. The composition of the electrolyte does notmaterially change, and the process can be continued indefinitely.
A vessel suitable for holding the fused salt may consist of 1 agnesium oxid or other refractory 'materh l, or even of tantalum oxid itself.
Specification of Letters Patent.
ll atentetll ll eh. t. lltltlltl.
Application filed. October 3, 1906. Serial No. 337.159.
The roduct obtainable by the above process 1s ound to be relatively pure, and can be used for the production of refractory heaters and glowers of furnaces and other -a cathode, to deposit purified tantalum on said cathode. r
3. The method of purifying tantalum, which consists in electrolyzing potassiumtantalum fluori-d between an impure tantalum anode and a cathode, to deposit on said cathode pure tantalum derived from said anode.
In witness whereof. T have hereunto set my hand this 28th day of September. 1906.
EZECHIEL WETNTRAUB.
Witnesses:
BENJAMIN B. HULL, HELEN ORFOIRD.
US33715906A 1906-10-03 1906-10-03 Purifying tantalum. Expired - Lifetime US947983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US33715906A US947983A (en) 1906-10-03 1906-10-03 Purifying tantalum.

Applications Claiming Priority (1)

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US33715906A US947983A (en) 1906-10-03 1906-10-03 Purifying tantalum.

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US947983A true US947983A (en) 1910-02-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734856A (en) * 1956-02-14 Electrolytic method for refining titanium metal
US2913379A (en) * 1957-05-21 1959-11-17 Morris A Steinberg Separation process
US3029193A (en) * 1954-11-23 1962-04-10 Chicago Dev Corp Electrorefining metals

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734856A (en) * 1956-02-14 Electrolytic method for refining titanium metal
US3029193A (en) * 1954-11-23 1962-04-10 Chicago Dev Corp Electrorefining metals
US2913379A (en) * 1957-05-21 1959-11-17 Morris A Steinberg Separation process

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