GR930100044A - process for the treatment of red mud. - Google Patents

process for the treatment of red mud.

Info

Publication number
GR930100044A
GR930100044A GR930100044A GR930100044A GR930100044A GR 930100044 A GR930100044 A GR 930100044A GR 930100044 A GR930100044 A GR 930100044A GR 930100044 A GR930100044 A GR 930100044A GR 930100044 A GR930100044 A GR 930100044A
Authority
GR
Greece
Prior art keywords
red mud
treatment
carbon dioxide
soda ash
entrained
Prior art date
Application number
GR930100044A
Other languages
Greek (el)
Inventor
Mitchell Cardile Clay
Original Assignee
Alcoa Australia
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 Alcoa Australia filed Critical Alcoa Australia
Publication of GR930100044A publication Critical patent/GR930100044A/en

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
    • C01F7/04—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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D7/00—Carbonates of sodium, potassium or alkali metals in general

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Treatment Of Sludge (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

Μία μέθοδος δια την επεξεργασία ερυθράς λάσπης όπου η ερυθράλάσπη έχει συμπαρασύρει εκτός αυτής μία ποσότητα σόδας, όπουη μέθοδος περιλαμβάνει διοχετεύσεις διοξειδίου του άνθρακοςμέσω ενός ρεύματος ερυθράς λάσπης προς ελάττωση του pH τηςερυθράς λάσπης και προς ανακέρδιση ενός μέρους της σόδας. Τοδιοξείδιο του άνθρακος μπορεί να τροφοδοτείται υπό μορφήαποβλήτων εξερχομένων αερίων από την διαδικασία Bayer.ωA method for treating red mud where the red mud has entrained a quantity of soda ash, the method comprising passing carbon dioxide through a red mud stream to lower the pH of the red mud and to recover a portion of the soda ash. Carbon dioxide can be fed as waste gas from the Bayer process.

GR930100044A 1992-02-06 1993-02-08 process for the treatment of red mud. GR930100044A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPL078592 1992-02-06

Publications (1)

Publication Number Publication Date
GR930100044A true GR930100044A (en) 1993-10-29

Family

ID=3775970

Family Applications (1)

Application Number Title Priority Date Filing Date
GR930100044A GR930100044A (en) 1992-02-06 1993-02-08 process for the treatment of red mud.

Country Status (3)

Country Link
GR (1) GR930100044A (en)
IE (1) IE930076A1 (en)
WO (1) WO1993016003A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR105400A0 (en) 2000-10-27 2000-11-23 Nauveau Technology Investments Ltd Processes and compositions for water treatment
AU2005212380B2 (en) * 2004-02-16 2010-05-13 Alcoa Of Australia Limited Treatment of alkaline bayer process residues
WO2005077830A1 (en) * 2004-02-16 2005-08-25 Alcoa Of Australia Limited Treatment of alkaline bayer process residues
AU2010333699B2 (en) * 2009-12-14 2013-11-21 Xstrata Technology Pty Ltd Process for treating red mud
GB2491351A (en) * 2011-05-27 2012-12-05 Inova Power Ltd A system for neutralising the residue of hydrogen production
CN104445844B (en) * 2013-10-10 2017-02-08 中国地质大学（北京） Method for dealkalizing red mud by uniting smoke and basic material
RU2018136337A (en) * 2016-03-25 2020-04-27 Ласло ПАКХ METHOD FOR RED SLUDGE PROCESSING AND PRODUCTION OF RARE-EARTH METAL SALTS
CN115571922A (en) * 2022-09-08 2023-01-06 山东创蓝垚石环保技术有限公司 Process for recovering sodium carbonate and magnetic iron oxide from red mud by using carbon dioxide

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2141132A (en) * 1936-06-11 1938-12-20 Cowles Detergent Company Process of treating siliceous materials
US4045537A (en) * 1975-07-03 1977-08-30 Reynolds Metals Company Process for recovering soda and alumina values from red mud
US4036931A (en) * 1976-06-25 1977-07-19 Kaiser Aluminum & Chemical Corporation Bayer process production of alumina
HU172752B (en) * 1976-10-29 1978-12-28 Magyar Aluminium Process for the selective recovery of the sodium content of red mud in alum earth factories
US4119698A (en) * 1976-11-26 1978-10-10 Kernforschungsanlage Julich, Gesellschaft Mit Beschrankter Haftung Reclamation treatment of red mud

Also Published As

Publication number Publication date
WO1993016003A1 (en) 1993-08-19
IE930076A1 (en) 1993-08-11

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