FR1523302A - Procédé perfectionné d'attaque continue de la bauxite par une solution de soude caustique et d'aluminate de sodium - Google Patents

Procédé perfectionné d'attaque continue de la bauxite par une solution de soude caustique et d'aluminate de sodium

Info

Publication number
FR1523302A
FR1523302A FR99393A FR99393A FR1523302A FR 1523302 A FR1523302 A FR 1523302A FR 99393 A FR99393 A FR 99393A FR 99393 A FR99393 A FR 99393A FR 1523302 A FR1523302 A FR 1523302A
Authority
FR
France
Prior art keywords
bauxite
solution
caustic soda
improved process
sodium aluminate
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
FR99393A
Other languages
English (en)
French (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.)
Pechiney SA
Appareils et Evaporateurs Kestner SA
Original Assignee
Pechiney SA
Appareils et Evaporateurs Kestner 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, Appareils et Evaporateurs Kestner SA filed Critical Pechiney SA
Priority to FR99393A priority Critical patent/FR1523302A/fr
Priority to US713421A priority patent/US3579294A/en
Priority to DE19681667823 priority patent/DE1667823C3/de
Priority to ES351740A priority patent/ES351740A1/es
Priority to NO1032/68A priority patent/NO125487B/no
Priority to BE712349D priority patent/BE712349A/xx
Priority to GB1227023D priority patent/GB1227023A/en
Priority to NL6803857A priority patent/NL6803857A/xx
Priority to OA53224A priority patent/OA02776A/xx
Application granted granted Critical
Publication of FR1523302A publication Critical patent/FR1523302A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/06—Evaporators with vertical tubes
    • B01D1/10—Evaporators with vertical tubes with long tubes, e.g. Kestner evaporators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/06—Evaporators with vertical tubes
    • B01D1/065—Evaporators with vertical tubes by film evaporating
    • 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
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/066—Treatment of the separated residue

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Analytical 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)
FR99393A 1967-03-20 1967-03-20 Procédé perfectionné d'attaque continue de la bauxite par une solution de soude caustique et d'aluminate de sodium Expired FR1523302A (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR99393A FR1523302A (fr) 1967-03-20 1967-03-20 Procédé perfectionné d'attaque continue de la bauxite par une solution de soude caustique et d'aluminate de sodium
US713421A US3579294A (en) 1967-03-20 1968-03-15 Process for extraction of alumina from ores by solution of caustic soda and sodium aluminate
ES351740A ES351740A1 (es) 1967-03-20 1968-03-18 Procedimiento de ataque continuo de la bauxita.
NO1032/68A NO125487B (OSRAM) 1967-03-20 1968-03-18
DE19681667823 DE1667823C3 (de) 1967-03-20 1968-03-18 Verfahren zum kontinuierlichen Aufschließen von Bauxit
BE712349D BE712349A (OSRAM) 1967-03-20 1968-03-18
GB1227023D GB1227023A (OSRAM) 1967-03-20 1968-03-19
NL6803857A NL6803857A (OSRAM) 1967-03-20 1968-03-19
OA53224A OA02776A (fr) 1967-03-20 1968-03-20 Procédé perfectionné d'attaque continue de la bauxite par une solution de soude caustique et d'aluminate de sodium.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR99393A FR1523302A (fr) 1967-03-20 1967-03-20 Procédé perfectionné d'attaque continue de la bauxite par une solution de soude caustique et d'aluminate de sodium

Publications (1)

Publication Number Publication Date
FR1523302A true FR1523302A (fr) 1968-05-03

Family

ID=8627173

Family Applications (1)

Application Number Title Priority Date Filing Date
FR99393A Expired FR1523302A (fr) 1967-03-20 1967-03-20 Procédé perfectionné d'attaque continue de la bauxite par une solution de soude caustique et d'aluminate de sodium

Country Status (8)

Country Link
US (1) US3579294A (OSRAM)
BE (1) BE712349A (OSRAM)
ES (1) ES351740A1 (OSRAM)
FR (1) FR1523302A (OSRAM)
GB (1) GB1227023A (OSRAM)
NL (1) NL6803857A (OSRAM)
NO (1) NO125487B (OSRAM)
OA (1) OA02776A (OSRAM)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868442A (en) * 1972-09-05 1975-02-25 Aluminum Co Of America Alumina extraction
US4145398A (en) * 1974-02-19 1979-03-20 Vereinigte Aluminium-Werke A.G. Bauxite digestion by caustic alkali with improved heat transfer in tubular reactors
GB8906500D0 (en) * 1989-03-21 1989-05-04 Shell Int Research Process for the production of aluminium hydroxide from bauxite
ES2047956T3 (es) * 1989-11-27 1994-03-01 Alcan Int Ltd Procedimiento de calcinacion para la produccion de alumina a partir de trihidrato de alumina y aparato para esto.

Also Published As

Publication number Publication date
DE1667823B2 (de) 1973-08-16
OA02776A (fr) 1970-12-15
NO125487B (OSRAM) 1972-09-18
US3579294A (en) 1971-05-18
DE1667823A1 (de) 1972-11-09
GB1227023A (OSRAM) 1971-03-31
BE712349A (OSRAM) 1968-09-18
NL6803857A (OSRAM) 1968-09-23
ES351740A1 (es) 1969-12-01

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