FR914132A - Procédé de fabrication de la cryolithe - Google Patents

Procédé de fabrication de la cryolithe

Info

Publication number
FR914132A
FR914132A FR914132DA FR914132A FR 914132 A FR914132 A FR 914132A FR 914132D A FR914132D A FR 914132DA FR 914132 A FR914132 A FR 914132A
Authority
FR
France
Prior art keywords
cryolite
manufacturing process
manufacturing
cryolite manufacturing
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
Other languages
English (en)
Inventor
Erling Brodal
Henning Guldhav
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.)
Rio Tinto Alcan Inc
Original Assignee
Alcan Aluminum 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 Alcan Aluminum Ltd filed Critical Alcan Aluminum Ltd
Application granted granted Critical
Publication of FR914132A publication Critical patent/FR914132A/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/48—Halides, with or without other cations besides aluminium
    • C01F7/50—Fluorides
    • C01F7/54—Double compounds containing both aluminium and alkali metals or alkaline-earth metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Silicon Compounds (AREA)
  • Manufacture And Refinement Of Metals (AREA)
FR914132D 1941-02-11 1943-10-13 Procédé de fabrication de la cryolithe Expired FR914132A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO621569X 1941-02-11

Publications (1)

Publication Number Publication Date
FR914132A true FR914132A (fr) 1946-09-30

Family

ID=32232807

Family Applications (2)

Application Number Title Priority Date Filing Date
FR913189D Expired FR913189A (fr) 1941-02-11 1943-07-27 Procédé de préparation du fluorure d'aluminium alcalin
FR914132D Expired FR914132A (fr) 1941-02-11 1943-10-13 Procédé de fabrication de la cryolithe

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR913189D Expired FR913189A (fr) 1941-02-11 1943-07-27 Procédé de préparation du fluorure d'aluminium alcalin

Country Status (6)

Country Link
US (2) US2592113A (fr)
CH (1) CH254797A (fr)
DE (1) DE825541C (fr)
FR (2) FR913189A (fr)
GB (1) GB621569A (fr)
NL (1) NL66897C (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH319303A (de) * 1952-11-26 1957-02-15 Vaw Ver Aluminium Werke Ag Verfahren zur Rückgewinnung von Kryolith aus dem Kohleboden von Elektrolyseöfen
DE1036827B (de) * 1953-03-14 1958-08-21 Paul August Franz Baeumert Verfahren zur Gewinnung von Fluorverbindungen aus fluorhaltigen Rohstoffen, insbesondere aus Fluormineralien
DE957027C (de) * 1953-11-17 1957-01-31 Vaw Ver Aluminium Werke Ag Verfahren zur Herstellung von Kryolith
GB888844A (en) * 1957-08-28 1962-02-07 Paul August Franz Baumert Process for obtaining fluorine compounds
DE1154078B (de) * 1960-03-03 1963-09-12 Sicedison Spa Verfahren zur Herstellung von technisch reinem kuenstlichem Kryolith auf trockenem Wege
US3359066A (en) * 1961-07-27 1967-12-19 Eastman Kodak Co Calcium fluoride optical elements and method for making same
US3206279A (en) * 1961-09-18 1965-09-14 Eastman Kodak Co Lanthanum fluoride infrared transmitting optical elements

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US447063A (en) * 1891-02-24 Engelbert richters
US400766A (en) * 1889-04-02 Process of reducing aluminium by electrolysis
US1091795A (en) * 1913-06-06 1914-03-31 Moritz Eyssell Process of purifying fluorspar.
US1634122A (en) * 1921-10-08 1927-06-28 Little Inc A Method of producing sodium fluoride
US1871723A (en) * 1929-05-29 1932-08-16 Aluminum Co Of America Process for the recovery of cryolite
US1891608A (en) * 1929-12-26 1932-12-20 Electric Smelting & Aluminum C Process of producing alumina
US2182509A (en) * 1937-05-24 1939-12-05 Aluminum Co Of America Production of double fluorides of alkali metals and aluminum
US2196077A (en) * 1937-06-25 1940-04-02 Aluminum Co Of America Method of producing sodium aluminum fluoride
US2210594A (en) * 1938-01-06 1940-08-06 Aluminum Co Of America Insecticide and method of producing same
US2328846A (en) * 1942-08-17 1943-09-07 Standard Oil Co Catalytic conversion process
US2365702A (en) * 1944-03-06 1944-12-26 Tennessee Valley Authority Extracting alumina

Also Published As

Publication number Publication date
DE825541C (de) 1951-12-20
US2547901A (en) 1951-04-03
CH254797A (de) 1948-05-31
GB621569A (en) 1949-04-12
US2592113A (en) 1952-04-08
FR913189A (fr) 1946-08-30
NL66897C (fr) 1950-11-16

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