GB813457A - Improvements relating to chloride-fluoride fused salt baths - Google Patents

Improvements relating to chloride-fluoride fused salt baths

Info

Publication number
GB813457A
GB813457A GB9546/56A GB954656A GB813457A GB 813457 A GB813457 A GB 813457A GB 9546/56 A GB9546/56 A GB 9546/56A GB 954656 A GB954656 A GB 954656A GB 813457 A GB813457 A GB 813457A
Authority
GB
United Kingdom
Prior art keywords
chlorides
aluminium
fluoride
fluorides
barium
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
GB9546/56A
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.)
Pechiney SA
Original Assignee
Pechiney SA
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 Pechiney SA filed Critical Pechiney SA
Publication of GB813457A publication Critical patent/GB813457A/en
Expired legal-status Critical Current

Links

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
    • 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
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/18—Electrolytes
    • 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
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/24—Refining
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/005—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of cells for the electrolysis of melts

Landscapes

  • 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 Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

813,457. Electrolytic fused salt baths; production of aluminium, titanium and zirconium. PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES. March 27, 1956 [March 30, 1955; July 6, 1955], No. 9546/56. Class 41. Oxygen-containing compounds present as impurities in chlorides and fluorides for use in chloride-fluoride electrolytic fused baths are converted into fluorides by treatment with a strong fluorinating agent, such as hydrogen fluoride, or an alkali metal, alkaline earth metal or ammonium bifluoride, e.g. at 200-600‹ C. A bath containing such impurities may be treated as such, but if chlorides which would be converted into undesirable fluorides are to be used in the bath, they are added in dry oxygen.- free form to the fluorinated other constituents. Thus for refining titanium and zirconium. using a bath of alkali metal and/or alkaline earth metal chlorides, the dry chlorides are mixed with 10 per cent ammonium bifluoride and heated to 300-500‹ C. part of the chlorides also being transformed into fluorides. In the production of aluminium using a chiolite-barium chloride bath, to avoid the production of undesirable barium fluoride, the periodic make-up additions of aluminium fluoride and of sodium and barium chlorides are treated separately. Thus the aluminium fluoride is mixed with ammonium bifluoride and heated at 400- 500‹ C. in a graphite crucible with steady stirring with an aluminium stirrer, and when bubbling has ceased the molten salt is cooled to near room temperature by pouring into an aluminium vessel, whereafter sodium and barium chlorides which have been thoroughly dried at 120 C. are added to it.
GB9546/56A 1955-03-30 1956-03-27 Improvements relating to chloride-fluoride fused salt baths Expired GB813457A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1044420X 1955-03-30

Publications (1)

Publication Number Publication Date
GB813457A true GB813457A (en) 1959-05-13

Family

ID=9591136

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9546/56A Expired GB813457A (en) 1955-03-30 1956-03-27 Improvements relating to chloride-fluoride fused salt baths

Country Status (5)

Country Link
US (1) US2915441A (en)
CH (1) CH351757A (en)
DE (1) DE1044420B (en)
FR (2) FR1124194A (en)
GB (1) GB813457A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725222A (en) * 1971-10-26 1973-04-03 Aluminum Co Of America Production of aluminum

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US578633A (en) * 1897-03-09 Process of reducing aluminium
US736020A (en) * 1898-09-27 1903-08-11 Charles W Roepper Apparatus for the electrolysis of fused substances.
US786244A (en) * 1903-09-12 1905-03-28 Henry Spencer Blackmore Process of extracting aluminium or other metals.
US842256A (en) * 1905-07-17 1907-01-29 George O Seward Electrolytic cell.
US2451494A (en) * 1947-01-28 1948-10-19 Reynolds Metals Co Enriching alumina content of cryolite fusions
GB713446A (en) * 1951-06-23 1954-08-11 Peter Spence & Sons Ltd A process for preparing titanium metal
US2731402A (en) * 1952-07-03 1956-01-17 Horizons Titanium Corp Production of metallic titanium
US2755240A (en) * 1953-11-02 1956-07-17 Shawinigan Water And Power Com Electrolysis of titanium tetrachloride to produce titanium

Also Published As

Publication number Publication date
DE1044420B (en) 1958-11-20
FR1124194A (en) 1956-10-05
US2915441A (en) 1959-12-01
CH351757A (en) 1961-01-31
FR67974E (en) 1958-03-26

Similar Documents

Publication Publication Date Title
US4725312A (en) Production of metals by metallothermia
GB993192A (en) Electrolytic refining of silicon and germanium
GB813457A (en) Improvements relating to chloride-fluoride fused salt baths
GB951254A (en) Process for the preparation of alkaline earth metals and of alloys based on alkaline earth metals by electrolysis of baths of fused salts
GB405596A (en) Process and apparatus for the electrolytic refining of aluminium
GB1403893A (en) Process for producing aluminum by electrolysis
US1740857A (en) Process for the production of metallic beryllium
US2848396A (en) Electrochemical preparation of boron
US2793097A (en) Method of producing alkali metal titanium fluorides in which the titanium has a valence of less than four
GB794518A (en) Metallic halides
GB648337A (en) Process for the manufacture of aluminium by means of melt electrolysis at relatively low temperatures
GB713446A (en) A process for preparing titanium metal
Vivian Beryllium
US3518172A (en) Process for the electrolysis of aluminum chloride
US2022404A (en) Method for the manufacture of beryllium and alloys
DE472663C (en) Process for the production of chromium precipitates by fused-salt electrolysis
US2487214A (en) Fused pyrosulfate-halide solvent electrolyte
GB782371A (en) Improvements in fused salt baths for use in the electrodeposition of refractory metals
SU639956A1 (en) Flux for remelting and refining aluminium and its alloys
GB696455A (en) Improvements in or relating to aluminium production
GB548050A (en) Improvements in or relating to manufacture of magnesium compounds
SU631559A1 (en) Correcting additive to electrolyte for obtaining aluminium
SU425984A1 (en)
SU127038A1 (en) Electrolyte composition for babbitt-lead lead-calcium alloys
SU1576588A1 (en) Universal flux for processing aluminium alloys