FR2395955A1 - Procede d'extraction de substances alumineuses a partir d'argiles et de schistes - Google Patents

Procede d'extraction de substances alumineuses a partir d'argiles et de schistes

Info

Publication number
FR2395955A1
FR2395955A1 FR7818846A FR7818846A FR2395955A1 FR 2395955 A1 FR2395955 A1 FR 2395955A1 FR 7818846 A FR7818846 A FR 7818846A FR 7818846 A FR7818846 A FR 7818846A FR 2395955 A1 FR2395955 A1 FR 2395955A1
Authority
FR
France
Prior art keywords
fluoride
treatment
ore
liquor
sulphuric 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.)
Granted
Application number
FR7818846A
Other languages
English (en)
Other versions
FR2395955B3 (fr
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.)
Alcan Research and Development Ltd
Original Assignee
Alcan Research and Development 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 Research and Development Ltd filed Critical Alcan Research and Development Ltd
Publication of FR2395955A1 publication Critical patent/FR2395955A1/fr
Application granted granted Critical
Publication of FR2395955B3 publication Critical patent/FR2395955B3/fr
Granted 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
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/20—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts
    • C01F7/26—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts with sulfuric acids or sulfates

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

La présente invention concerne un procédé pour la récupération des substances alumineuses d'un minerai de silicate d'aluminium du type argile ou schiste en traitant le minerai avec une liqueur à l'acide sulfurique concentré contenant de 200 à 1 000 grammes d'acide sulfurique litre par litre. Ce procédé est caractérisé en ce que cette liqueur contient de 1 à 50 grammes par litre de fluorure dissous et que le traitement est effectué à une température comprise entre 60 degrés C et le point d'ébullition de la liqueur à l'acide sulfurique Application à la production d'alumine.
FR7818846A 1977-06-27 1978-06-23 Procede d'extraction de substances alumineuses a partir d'argiles et de schistes Granted FR2395955A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2686477 1977-06-27

Publications (2)

Publication Number Publication Date
FR2395955A1 true FR2395955A1 (fr) 1979-01-26
FR2395955B3 FR2395955B3 (fr) 1980-09-26

Family

ID=10250436

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7818846A Granted FR2395955A1 (fr) 1977-06-27 1978-06-23 Procede d'extraction de substances alumineuses a partir d'argiles et de schistes

Country Status (9)

Country Link
JP (1) JPS5417400A (fr)
AR (1) AR217470A1 (fr)
AU (1) AU3737278A (fr)
BE (1) BE868488A (fr)
DE (1) DE2827459A1 (fr)
FR (1) FR2395955A1 (fr)
IT (1) IT1097285B (fr)
SE (1) SE7807256L (fr)
ZA (1) ZA783517B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5932184U (ja) * 1982-08-26 1984-02-28 株式会社井上ジャパックス研究所 ポンプ

Also Published As

Publication number Publication date
AU3737278A (en) 1980-01-03
DE2827459A1 (de) 1979-01-04
BE868488A (fr) 1978-10-16
AR217470A1 (es) 1980-03-31
JPS5417400A (en) 1979-02-08
IT1097285B (it) 1985-08-31
SE7807256L (sv) 1978-12-28
FR2395955B3 (fr) 1980-09-26
IT7825030A0 (it) 1978-06-27
ZA783517B (en) 1979-06-27

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