FR2430792A1 - RED SLUDGE TREATMENT PROCESS - Google Patents

RED SLUDGE TREATMENT PROCESS

Info

Publication number
FR2430792A1
FR2430792A1 FR7820846A FR7820846A FR2430792A1 FR 2430792 A1 FR2430792 A1 FR 2430792A1 FR 7820846 A FR7820846 A FR 7820846A FR 7820846 A FR7820846 A FR 7820846A FR 2430792 A1 FR2430792 A1 FR 2430792A1
Authority
FR
France
Prior art keywords
red sludge
treatment process
sludge treatment
red
suspensions
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
FR7820846A
Other languages
French (fr)
Other versions
FR2430792B1 (en
Inventor
James Kane
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.)
ChampionX LLC
Original Assignee
Nalco Chemical Co
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 Nalco Chemical Co filed Critical Nalco Chemical Co
Publication of FR2430792A1 publication Critical patent/FR2430792A1/en
Application granted granted Critical
Publication of FR2430792B1 publication Critical patent/FR2430792B1/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
    • C01F7/04—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)
  • 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)
  • Treatment Of Sludge (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

Procédé de fluidisation des suspensions aqueuses concentrées de boues rouges. On mélange uniformément aux suspensions au moins 50 g d'un polymère d'acide acrylique par tonne sèche des boues rouges contenues dans la suspension, le polymère ayant un poids moléculaire compris entre 5 000 et 30 000. Fabrication de l'alumine.Process for fluidizing concentrated aqueous suspensions of red sludge. At least 50 g of an acrylic acid polymer per dry ton of the red sludge contained in the suspension, the polymer having a molecular weight of between 5,000 and 30,000, is mixed uniformly with the suspensions. Manufacture of alumina.

FR7820846A 1977-06-22 1978-07-12 RED SLUDGE TREATMENT PROCESS Granted FR2430792A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80877077A 1977-06-22 1977-06-22

Publications (2)

Publication Number Publication Date
FR2430792A1 true FR2430792A1 (en) 1980-02-08
FR2430792B1 FR2430792B1 (en) 1981-12-31

Family

ID=25199686

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7820846A Granted FR2430792A1 (en) 1977-06-22 1978-07-12 RED SLUDGE TREATMENT PROCESS

Country Status (5)

Country Link
BE (1) BE868927A (en)
FR (1) FR2430792A1 (en)
GB (1) GB2024182B (en)
IT (1) IT7847966A0 (en)
NL (1) NL7807598A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636578A1 (en) * 1993-07-29 1995-02-01 S. N. F. Process for the fluidization of aqueous red mud suspensions during the preparation of alumina by the Bayer process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2279964A1 (en) * 1974-07-26 1976-02-20 Aquitaine Petrole Improving flow of aqs liq in contact with a wall - by adding a hydrophilic modified acrylic polymer
FR2298555A1 (en) * 1975-01-22 1976-08-20 Nalco Chemical Co HIGH HYDROPHIL-LIPOPHILIC BALANCE EMULSION POLYMERS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2279964A1 (en) * 1974-07-26 1976-02-20 Aquitaine Petrole Improving flow of aqs liq in contact with a wall - by adding a hydrophilic modified acrylic polymer
FR2298555A1 (en) * 1975-01-22 1976-08-20 Nalco Chemical Co HIGH HYDROPHIL-LIPOPHILIC BALANCE EMULSION POLYMERS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636578A1 (en) * 1993-07-29 1995-02-01 S. N. F. Process for the fluidization of aqueous red mud suspensions during the preparation of alumina by the Bayer process
CN1035322C (en) * 1993-07-29 1997-07-02 S·N·F·公司 Process for fluidifying aqueous suspensions of rod muds in the production of alumina by the bayer process
US5653946A (en) * 1993-07-29 1997-08-05 S.N.F. Process for fluidifying aqueous suspensions of red muds in the production of alumina by the bayer process

Also Published As

Publication number Publication date
IT7847966A0 (en) 1978-02-08
BE868927A (en) 1979-01-12
GB2024182B (en) 1982-08-11
FR2430792B1 (en) 1981-12-31
NL7807598A (en) 1980-01-16
GB2024182A (en) 1980-01-09

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ST Notification of lapse