[go: up one dir, main page]

BR8104729A - Processo para a floculacao de residuos vermelhos de bauxita do circuito de recuperacao de alumina "bayer" - Google Patents

Processo para a floculacao de residuos vermelhos de bauxita do circuito de recuperacao de alumina "bayer"

Info

Publication number
BR8104729A
BR8104729A BR8104729A BR8104729A BR8104729A BR 8104729 A BR8104729 A BR 8104729A BR 8104729 A BR8104729 A BR 8104729A BR 8104729 A BR8104729 A BR 8104729A BR 8104729 A BR8104729 A BR 8104729A
Authority
BR
Brazil
Prior art keywords
flocculation
bayer
recovery circuit
alumina recovery
red bauxite
Prior art date
Application number
BR8104729A
Other languages
English (en)
Inventor
N 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 BR8104729A publication Critical patent/BR8104729A/pt

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)
BR8104729A 1980-07-23 1981-07-22 Processo para a floculacao de residuos vermelhos de bauxita do circuito de recuperacao de alumina "bayer" BR8104729A (pt)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BR8104729A true BR8104729A (pt) 1982-04-13

Family

ID=22624471

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8104729A BR8104729A (pt) 1980-07-23 1981-07-22 Processo para a floculacao de residuos vermelhos de bauxita do circuito de recuperacao de alumina "bayer"

Country Status (13)

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

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 (pt) * 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

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 (pt) * 1969-04-17 1973-11-13
NL6906483A (pt) * 1969-04-30 1970-10-27
JPS4929080B1 (pt) * 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
IE51418B1 (en) 1986-12-24
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 (pt) 1990-01-29
GR81418B (pt) 1984-12-11
FR2487325B1 (pt) 1985-04-26
DE3129019C2 (pt) 1993-08-26
ES8204397A1 (es) 1982-07-16
AU7319781A (en) 1982-01-28
YU181281A (en) 1983-10-31
FR2487325A1 (fr) 1982-01-29
YU43029B (en) 1989-02-28
IE811647L (en) 1982-01-23
GB2080272B (en) 1984-06-13

Similar Documents

Publication Publication Date Title
BR8800540A (pt) Processo aperfeicoado para remover solidos suspensos do circuito de alumina bayer
BR9001453A (pt) Processo para a recuperacao de terras raras de lama vermelha do processo bayer
BR8104729A (pt) Processo para a floculacao de residuos vermelhos de bauxita do circuito de recuperacao de alumina "bayer"
IT8267514A0 (it) Procedimento per il trattamento di riciclaggio di carta stampata da macero
BE895779A (fr) Procede de deshydrocyclisation d'alcanes
BR8506493A (pt) Processo de remocao de impurezas organicas do tipo humato de solucoes e suspensoes provenientes do processo bayer
DE3380033D1 (en) Process for removal and recovery of mercury from waste water
DE3369115D1 (en) Process for dewatering sludge
GB2164639B (en) Process for flocculation of bauxite (red mud)
BR8207566A (pt) Processo para flocular lamas vermelhas do circuito de recuperacao de alumina de bayer
GB2119622B (en) Effluent removal
BR8707199A (pt) Remocao de humatos de solucoes do processo bayer
BR8200616A (pt) Processo para a separacao de poeira fina que contem impureza da alumina
BR8305225A (pt) Processo para purificacao de um clorossilano
GB2121831B (en) Process for hydrolysis removal of condensation polymers from various objects
FR2521168B1 (fr) Procede perfectionne d'elimination de l'ecume d'un creuset d'affinage du plomb et creuset utilisant ce procede
IT8421167A1 (it) Dispositivo per l'accumulo temporaneo di stampati
GR862265B (en) Process for recovering aluminate sodium from red mud
FR2533941B1 (fr) Procede de fabrication de la l-phenylalanine comportant la reutilisation de l'ammonia-lyase de phenylalanine
BR8307262A (pt) Processo aperfeicoado para a recuperacao de sacarose
DE3361688D1 (en) Removal of sulphur contaminant from ammonia
BR8304148A (pt) Processo para a purificacao de polimeros de propileno
DE3273065D1 (en) Clarifier for removing solids from waste water
GB8323084D0 (en) Removing contaminates from well fluid
RO91333A2 (ro) Procedeu de recuperare a principalelor componente din slamul rosu rezultat la fabricarea aluminei

Legal Events

Date Code Title Description
MK Patent expired

Effective date: 19960722