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GB372572A - Improved process for obtaining pure aluminium-alkali double fluorides - Google Patents

Improved process for obtaining pure aluminium-alkali double fluorides

Info

Publication number
GB372572A
GB372572A GB1554631A GB1554631A GB372572A GB 372572 A GB372572 A GB 372572A GB 1554631 A GB1554631 A GB 1554631A GB 1554631 A GB1554631 A GB 1554631A GB 372572 A GB372572 A GB 372572A
Authority
GB
United Kingdom
Prior art keywords
alkali
improved process
pure aluminium
obtaining pure
acid
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
GB1554631A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1554631A priority Critical patent/GB372572A/en
Publication of GB372572A publication Critical patent/GB372572A/en
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)

Abstract

Raw materials containing alumina and iron compounds, such as bauxite, are dissolved in hydrofluoric acid, and alkali-aluminium fluoride is precipitated, and subsequently separated, from the solution by the addition of an alkali salt of which the acid radicle forms a soluble iron salt. Sodium chloride and sulphate are specified. When silica is present in the raw materials, sufficient hydrofluoric acid is used to form hydrofluosilicic acid, which is separated from the solution, prior to the precipitation of the double fluoride, as alkali silicofluoride by the addition of an alkali salt, such as sodium or potassium chloride.
GB1554631A 1931-05-27 1931-05-27 Improved process for obtaining pure aluminium-alkali double fluorides Expired GB372572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1554631A GB372572A (en) 1931-05-27 1931-05-27 Improved process for obtaining pure aluminium-alkali double fluorides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1554631A GB372572A (en) 1931-05-27 1931-05-27 Improved process for obtaining pure aluminium-alkali double fluorides

Publications (1)

Publication Number Publication Date
GB372572A true GB372572A (en) 1932-05-12

Family

ID=10061049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1554631A Expired GB372572A (en) 1931-05-27 1931-05-27 Improved process for obtaining pure aluminium-alkali double fluorides

Country Status (1)

Country Link
GB (1) GB372572A (en)

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