IT8148957A0 - Procedimento per incrementare il recupero di allumina ottenuta con il procedimento bayer per flocculazione dei fanghi rossi - Google Patents

Procedimento per incrementare il recupero di allumina ottenuta con il procedimento bayer per flocculazione dei fanghi rossi

Info

Publication number
IT8148957A0
IT8148957A0 IT8148957A IT4895781A IT8148957A0 IT 8148957 A0 IT8148957 A0 IT 8148957A0 IT 8148957 A IT8148957 A IT 8148957A IT 4895781 A IT4895781 A IT 4895781A IT 8148957 A0 IT8148957 A0 IT 8148957A0
Authority
IT
Italy
Prior art keywords
procedure
flocculation
recovery
increase
bayer
Prior art date
Application number
IT8148957A
Other languages
English (en)
Other versions
IT1195978B (it
Inventor
Neville J Brownrigg
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 IT8148957A0 publication Critical patent/IT8148957A0/it
Application granted granted Critical
Publication of IT1195978B publication Critical patent/IT1195978B/it

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)
IT48957/81A 1980-07-23 1981-07-22 Procedimento per incrementare il re cupero di allumina ottenuta con il procedimento bayer per flocculazio ne dei fanghi rossi IT1195978B (it)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IT8148957A0 true IT8148957A0 (it) 1981-07-22
IT1195978B IT1195978B (it) 1988-11-03

Family

ID=22624471

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48957/81A IT1195978B (it) 1980-07-23 1981-07-22 Procedimento per incrementare il re cupero di allumina ottenuta con il procedimento bayer per flocculazio ne dei fanghi rossi

Country Status (13)

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

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 (it) * 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
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
US6086771A (en) * 1997-12-12 2000-07-11 Nalco Chemical Company Water continuous emulsion polymers for improving scale control 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
US9533891B2 (en) * 2012-04-26 2017-01-03 Showa Denko K.K. Washing method of goethite-containing red mud
WO2020089271A1 (en) 2018-10-31 2020-05-07 Basf Se Enhanced dewatering of mining tailings employing chemical pre-treatment

Family Cites Families (8)

* 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
US3445187A (en) * 1966-05-25 1969-05-20 Nalco Chemical Co Process for separation of red mud from dissolved alumina
JPS4837678B1 (it) * 1969-04-17 1973-11-13
NL6906483A (it) * 1969-04-30 1970-10-27
JPS4929080B1 (it) * 1970-08-24 1974-08-01
GB1378981A (en) * 1972-01-13 1975-01-02 Nalco Chemical Co Process for the separation of red mud from alumina solutions
GB1439057A (en) * 1973-10-10 1976-06-09 Allied Colloids Ltd Flocculating agents for alkaline systems
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
CA1176031A (en) 1984-10-16
IT1195978B (it) 1988-11-03
JPS5751117A (en) 1982-03-25
BR8104729A (pt) 1982-04-13
GB2080272A (en) 1982-02-03
IE811647L (en) 1982-01-23
ES8204397A1 (es) 1982-07-16
GR81418B (it) 1984-12-11
YU181281A (en) 1983-10-31
FR2487325A1 (fr) 1982-01-29
GB2080272B (en) 1984-06-13
YU43029B (en) 1989-02-28
HU186395B (en) 1985-07-29
DE3129019A1 (de) 1982-03-18
DE3129019C2 (it) 1993-08-26
ES504178A0 (es) 1982-05-16
FR2487325B1 (it) 1985-04-26
JPH024532B2 (it) 1990-01-29
AU7319781A (en) 1982-01-28
IE51418B1 (en) 1986-12-24

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950731