NO125487B - - Google Patents

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Publication number
NO125487B
NO125487B NO1032/68A NO103268A NO125487B NO 125487 B NO125487 B NO 125487B NO 1032/68 A NO1032/68 A NO 1032/68A NO 103268 A NO103268 A NO 103268A NO 125487 B NO125487 B NO 125487B
Authority
NO
Norway
Prior art keywords
suspension
expansion
stage
steam
heat exchanger
Prior art date
Application number
NO1032/68A
Other languages
English (en)
Norwegian (no)
Inventor
L Tamise
J Millet
Original Assignee
Pechiney Prod Chimiques 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 Prod Chimiques Sa filed Critical Pechiney Prod Chimiques Sa
Publication of NO125487B publication Critical patent/NO125487B/no

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)
NO1032/68A 1967-03-20 1968-03-18 NO125487B (cs)

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
NO125487B true NO125487B (cs) 1972-09-18

Family

ID=8627173

Family Applications (1)

Application Number Title Priority Date Filing Date
NO1032/68A NO125487B (cs) 1967-03-20 1968-03-18

Country Status (8)

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

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
US3579294A (en) 1971-05-18
FR1523302A (fr) 1968-05-03
DE1667823A1 (de) 1972-11-09
GB1227023A (cs) 1971-03-31
BE712349A (cs) 1968-09-18
NL6803857A (cs) 1968-09-23
ES351740A1 (es) 1969-12-01

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