GB1396337A - Dehydration of aluminium fluoride hydrates - Google Patents

Dehydration of aluminium fluoride hydrates

Info

Publication number
GB1396337A
GB1396337A GB3914872A GB3914872A GB1396337A GB 1396337 A GB1396337 A GB 1396337A GB 3914872 A GB3914872 A GB 3914872A GB 3914872 A GB3914872 A GB 3914872A GB 1396337 A GB1396337 A GB 1396337A
Authority
GB
United Kingdom
Prior art keywords
dehydration
temperature
aluminium fluoride
weight
water content
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
GB3914872A
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.)
Patheon Austria GmbH and Co KG
Original Assignee
Chemie Linz AG
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
Priority claimed from AT110072A external-priority patent/AT314475B/en
Application filed by Chemie Linz AG filed Critical Chemie Linz AG
Publication of GB1396337A publication Critical patent/GB1396337A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/001—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement the material moving down superimposed floors
    • F26B17/003—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement the material moving down superimposed floors with fixed floors provided with scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Microbiology (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Drying Of Solid Materials (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

1396337 Dehydrating aluminium fluoride hydrate CHEMIE LINZ AG 22 Aug 1972 [6 Sept 1972 11 Feb 1972] 39148/72 Heading C1A Aluminium fluoride anhydrate is prepared by dehydration of an aluminium fluoride hydrate, e.g. trihydrate in two dehydration sections, a first dehydration to a maximum water content of 10% by weight being carried out in the first section utilizing a disc dryer in which the material is heated in several temperature steps over the course of 10 to 20 minutes to a temperature of 190‹ to 220‹ C. the disc temperature being 240‹ to 280‹ C. whilst the water vapour formed is continuously expelled from the dehydration zone by a supply of hot air in an amount such that the atmosphere above the material in the step which is at a temperature of at least 190‹ C. has a water content of at most 6% by weight and the water content in the collected vapours of the first dehydration section, which leave the individual heating steps, does not exceed 22% by weight, after which the material obtained after a total residence time of at most 30 minutes in the first dehydration section is substantially completely dehydrated in a fluidized bed at a temperature up to 600‹ C.
GB3914872A 1971-09-06 1972-08-22 Dehydration of aluminium fluoride hydrates Expired GB1396337A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT771871 1971-09-06
AT110072A AT314475B (en) 1972-02-11 1972-02-11 Process for the dehydration of aluminum fluoride hydrates

Publications (1)

Publication Number Publication Date
GB1396337A true GB1396337A (en) 1975-06-04

Family

ID=25594890

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3914872A Expired GB1396337A (en) 1971-09-06 1972-08-22 Dehydration of aluminium fluoride hydrates

Country Status (8)

Country Link
JP (1) JPS4834098A (en)
CH (1) CH580033A5 (en)
DD (1) DD99767A1 (en)
DE (1) DE2237220B2 (en)
ES (1) ES406407A1 (en)
FR (1) FR2152570B1 (en)
GB (1) GB1396337A (en)
SE (1) SE378805B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH638163A5 (en) * 1978-10-09 1983-09-15 Alusuisse METHOD FOR CALCINATING ALUMINUM FLUORIDE HYDRATES.
CH645079A5 (en) * 1980-11-06 1984-09-14 Alusuisse Continuous process for preparing dust-free, calcined aluminium fluoride
DE3042359C2 (en) * 1980-11-10 1983-11-17 Schweizerische Aluminium AG, 3965 Chippis Process for making dust-free, SiO 2 and Al 2 O 3-poor aluminum fluoride

Also Published As

Publication number Publication date
FR2152570A1 (en) 1973-04-27
FR2152570B1 (en) 1975-01-03
SE378805B (en) 1975-09-15
CH580033A5 (en) 1976-09-30
DD99767A1 (en) 1973-08-20
DE2237220A1 (en) 1973-04-12
ES406407A1 (en) 1976-01-16
JPS4834098A (en) 1973-05-15
DE2237220B2 (en) 1975-11-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee