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FR2487325A1 - Procede de floculation de boues rouges dans la preparation de l'alumine - Google Patents

Procede de floculation de boues rouges dans la preparation de l'alumine Download PDF

Info

Publication number
FR2487325A1
FR2487325A1 FR8114249A FR8114249A FR2487325A1 FR 2487325 A1 FR2487325 A1 FR 2487325A1 FR 8114249 A FR8114249 A FR 8114249A FR 8114249 A FR8114249 A FR 8114249A FR 2487325 A1 FR2487325 A1 FR 2487325A1
Authority
FR
France
Prior art keywords
acrylic acid
flocculant
mole
stage
recovery circuit
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
FR8114249A
Other languages
English (en)
French (fr)
Other versions
FR2487325B1 (es
Inventor
Neville J Brownrigg
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid 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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of FR2487325A1 publication Critical patent/FR2487325A1/fr
Application granted granted Critical
Publication of FR2487325B1 publication Critical patent/FR2487325B1/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
    • C01F7/0646—Separation of the insoluble residue, e.g. of red mud
    • C01F7/0653—Separation of the insoluble residue, e.g. of red mud characterised by the flocculant added to the slurry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
FR8114249A 1980-07-23 1981-07-22 Procede de floculation de boues rouges dans la preparation de l'alumine Granted FR2487325A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17161680A 1980-07-23 1980-07-23

Publications (2)

Publication Number Publication Date
FR2487325A1 true FR2487325A1 (fr) 1982-01-29
FR2487325B1 FR2487325B1 (es) 1985-04-26

Family

ID=22624471

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8114249A Granted FR2487325A1 (fr) 1980-07-23 1981-07-22 Procede de floculation de boues rouges dans la preparation de l'alumine

Country Status (13)

Country Link
JP (1) JPS5751117A (es)
AU (1) AU7319781A (es)
BR (1) BR8104729A (es)
CA (1) CA1176031A (es)
DE (1) DE3129019A1 (es)
ES (1) ES8204397A1 (es)
FR (1) FR2487325A1 (es)
GB (1) GB2080272B (es)
GR (1) GR81418B (es)
HU (1) HU186395B (es)
IE (1) IE51418B1 (es)
IT (1) IT1195978B (es)
YU (1) YU43029B (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU536264B2 (en) * 1980-07-23 1984-05-03 Cytec Technology Corp. Process for alumina recovery
US4545902A (en) * 1984-09-17 1985-10-08 Nalco Chemical Company Flocculants for bauxite (red mud)
US4767540A (en) 1987-02-11 1988-08-30 American Cyanamid Company Polymers containing hydroxamic acid groups for reduction of suspended solids in bayer process streams
JPH03122694U (es) * 1990-03-20 1991-12-13
FR2708587B1 (fr) * 1993-07-29 1995-09-01 Snf Sa Procédé pour fluidifier les suspensions aqueuses de boues rouges dans la fabrication de l'alumine par la technique Bayer .
US5951955A (en) * 1995-11-07 1999-09-14 Cytec Technology Corp. Concentration of solids in the Bayer process
US5853677A (en) * 1996-04-26 1998-12-29 Cytec Technology Corp. Concentration of solids by flocculating in the Bayer process
US6086771A (en) * 1997-12-12 2000-07-11 Nalco Chemical Company Water continuous emulsion polymers for improving scale control in the bayer process
US6048463A (en) * 1997-12-12 2000-04-11 Nalco Chemical Company Water continuous methyl acrylate emulsion polymer combinations and methyl acrylate emulsion homopolymers for improved flocculation of red mud in the bayer process
US6036869A (en) * 1997-12-12 2000-03-14 Nalco Chemical Company Water continuous methyl acrylate emulsion polymers for improved flocculation of red mud in the Bayer process
GB0029077D0 (en) * 2000-11-29 2001-01-10 Ciba Spec Chem Water Treat Ltd Flocculation of mineral suspensions
GB0103192D0 (en) * 2001-02-09 2001-03-28 Ciba Spec Chem Water Treat Ltd Scale removal or prevention
CN103547532B (zh) * 2012-04-26 2016-01-20 昭和电工株式会社 含有针铁矿的赤泥的洗涤方法
CA3117346A1 (en) 2018-10-31 2020-05-07 Basf Se Enhanced dewatering of mining tailings employing chemical pre-treatment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445187A (en) * 1966-05-25 1969-05-20 Nalco Chemical Co Process for separation of red mud from dissolved alumina
FR2037005A1 (en) * 1969-04-30 1970-12-31 Nalco Chemical Co Low-impurity aluminium oxide from bauxite
GB1307316A (en) * 1969-04-17 1973-02-21 Sumitomo Chemical Co Process for producing alumina
US3755531A (en) * 1970-08-24 1973-08-28 Kao Corp Process for refining alumina
US3975496A (en) * 1973-10-10 1976-08-17 Allied Colloids Limited Process for settling red mud in the digestion of bauxite
US4083925A (en) * 1976-03-22 1978-04-11 Martin Marietta Aluminum, Inc. Method for removing ferrous iron from alkali metal aluminate liquor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390959A (en) * 1965-04-30 1968-07-02 Nalco Chemical Co Process of making alumina
GB1378981A (en) * 1972-01-13 1975-01-02 Nalco Chemical Co Process for the separation of red mud from alumina solutions

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445187A (en) * 1966-05-25 1969-05-20 Nalco Chemical Co Process for separation of red mud from dissolved alumina
GB1307316A (en) * 1969-04-17 1973-02-21 Sumitomo Chemical Co Process for producing alumina
FR2037005A1 (en) * 1969-04-30 1970-12-31 Nalco Chemical Co Low-impurity aluminium oxide from bauxite
US3755531A (en) * 1970-08-24 1973-08-28 Kao Corp Process for refining alumina
US3975496A (en) * 1973-10-10 1976-08-17 Allied Colloids Limited Process for settling red mud in the digestion of bauxite
US4083925A (en) * 1976-03-22 1978-04-11 Martin Marietta Aluminum, Inc. Method for removing ferrous iron from alkali metal aluminate liquor

Also Published As

Publication number Publication date
IE51418B1 (en) 1986-12-24
BR8104729A (pt) 1982-04-13
CA1176031A (en) 1984-10-16
ES504178A0 (es) 1982-05-16
JPS5751117A (en) 1982-03-25
DE3129019A1 (de) 1982-03-18
HU186395B (en) 1985-07-29
IT1195978B (it) 1988-11-03
GB2080272A (en) 1982-02-03
IT8148957A0 (it) 1981-07-22
JPH024532B2 (es) 1990-01-29
GR81418B (es) 1984-12-11
FR2487325B1 (es) 1985-04-26
DE3129019C2 (es) 1993-08-26
ES8204397A1 (es) 1982-07-16
AU7319781A (en) 1982-01-28
YU181281A (en) 1983-10-31
YU43029B (en) 1989-02-28
IE811647L (en) 1982-01-23
GB2080272B (en) 1984-06-13

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