YU21601A - Poboljšana bajerova kaustifikacija - Google Patents

Poboljšana bajerova kaustifikacija

Info

Publication number
YU21601A
YU21601A YU21601A YU21601A YU21601A YU 21601 A YU21601 A YU 21601A YU 21601 A YU21601 A YU 21601A YU 21601 A YU21601 A YU 21601A YU 21601 A YU21601 A YU 21601A
Authority
YU
Yugoslavia
Prior art keywords
liquor
bayer
ions
hydrocalumite species
causticisation
Prior art date
Application number
YU21601A
Other languages
English (en)
Inventor
Steven Rosenberg
Darrel James Wilson
Catherine Heath
Original Assignee
Worsley Alumina Pty.Ltd.
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
Priority claimed from AUPP6224A external-priority patent/AUPP622498A0/en
Priority claimed from AUPQ2476A external-priority patent/AUPQ247699A0/en
Application filed by Worsley Alumina Pty.Ltd. filed Critical Worsley Alumina Pty.Ltd.
Publication of YU21601A publication Critical patent/YU21601A/sh
Publication of RS50048B publication Critical patent/RS50048B/sr

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
    • C01F7/062—Digestion
    • C01F7/0633—Digestion characterised by the use of additives
    • 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
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
    • C01F7/473—Removal of organic compounds, e.g. sodium oxalate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Nutrition Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Paper (AREA)

Abstract

Poboljšani postupak kaustifikovanja Bayer-ovih lužina u rafineriji aluminijuma, koji uključuje korake reakcije kreča sa aluminatnim jonima u Bayer-ovoj lužini u primarnom reaktoru pod kontrolisanim uslovima niske do umerene temperature (izmedju 70-80В°C) i mešanja, da bi nastale suštinski samo hidrokalumitne vrste i hidroksidni joni; i sekundarni reaktor gde se navedene nastale hidrokalumitne vrste podvrgavaju zagrevanju u kontaktu sa Bayer-ovom lužinom pod kontrolisanm uslovima tako da se izazove reakcija hidrokalumitnih vrsta sa lužinom gradeći kalcijum-karbonat, aluminatne jone i hidroksidne jone, čime se dobija kaustifikovana Bayer-ova lužina i gde se efikasnost upotrebe kreča suštinski povećava i/ili gubici aluminijuma minimiziraju.[An improved process for the causticisation of Bayer liquors in an alumina refinery, the process including the steps of reacting lime with aluminate ions in a Bayer liquor within a primary reactor under controlled conditions of low to moderate temperature (between 70- 80 В°C) and agitation, to form substantially only a hydrocalumite species and hydroxyl ions; and a secondary reactor wherein said hydrocalumite species formed is subjected to heating in contact with a Bayer liquor under controlled conditions so as to cause the hydrocalumite species to react with the liquor to form calcium carbonate, aluminate ions and hydroxyl ions, whereby a causticised Bayer liquor is obtained and wherein the efficiency of lime utilisation is substantially increased and/or alumina losses are minimised.
YUP-216/01A 1998-09-25 1999-09-13 Proces bajerove kaustifikacije RS50048B (sr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPP6224A AUPP622498A0 (en) 1998-09-25 1998-09-25 Improved bayer causticisation
AUPQ2476A AUPQ247699A0 (en) 1999-08-26 1999-08-26 Improved bayer causticisation

Publications (2)

Publication Number Publication Date
YU21601A true YU21601A (sh) 2003-10-31
RS50048B RS50048B (sr) 2008-11-28

Family

ID=25645885

Country Status (19)

Country Link
US (2) US6676910B1 (sh)
EP (2) EP1775264B1 (sh)
JP (1) JP3872956B2 (sh)
KR (1) KR100483685B1 (sh)
CN (2) CN1269737C (sh)
AP (1) AP1701A (sh)
AT (2) ATE412612T1 (sh)
AU (1) AU749809B2 (sh)
BR (1) BR9913933A (sh)
CA (2) CA2352953C (sh)
DE (2) DE69939834D1 (sh)
EA (1) EA002798B1 (sh)
ES (1) ES2317703T3 (sh)
HU (1) HUP0103434A3 (sh)
OA (1) OA11658A (sh)
RS (1) RS50048B (sh)
SK (1) SK287753B6 (sh)
TR (2) TR200200090T2 (sh)
WO (1) WO2000018684A1 (sh)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2317703T3 (es) * 1998-09-25 2009-04-16 Bhp Billiton Worsley Alumina Pty Ltd Proceso para la caustificacion de lejias bayer.
AUPR437001A0 (en) 2001-04-11 2001-05-17 Worsley Alumina Pty Ltd Process for the removal of anionic impurities from caustic aluminate solutions
CA2597086A1 (en) 2005-02-11 2006-08-17 Billiton Aluminium Australia Pty Ltd Alumina recovery
AU2006212716B2 (en) * 2005-02-11 2011-01-27 South32 Aluminium (Raa) Pty Ltd Alumina recovery
CN100542959C (zh) * 2006-05-17 2009-09-23 中国铝业股份有限公司 一种氧化铝生产中的化灰方法
US8628737B2 (en) * 2006-11-09 2014-01-14 Nalco Company Transfer of slurry in a bayer process
DE102006055215A1 (de) 2006-11-21 2008-05-29 Nabaltec Gmbh Neue zinkhaltige Kalzium-Aluminium-Doppelsalze
EP2308856A1 (en) * 2009-10-09 2011-04-13 Borealis Agrolinz Melamine GmbH Water recycling in a melamine production process
WO2011137481A1 (en) * 2010-05-03 2011-11-10 Bhp Billiton Worsley Alumina Pty Ltd Process for recovery of alumina using tricalcium aluminate
AU2012203295B1 (en) * 2012-03-07 2013-03-21 South32 Worsley Alumina Pty Ltd System for causticisation of a bayer liquor
BR112014021591B1 (pt) * 2012-03-07 2020-10-13 South32 Worsley Alumina Pty Ltd. sistema para causticização de temperatura alta de um licor de processo bayer
AU2012203292C8 (en) * 2012-03-07 2013-12-19 South32 Worsley Alumina Pty Ltd High temperature processs for causticisation of a bayer liquor
WO2013131118A1 (en) * 2012-03-07 2013-09-12 Bhp Billiton Worsley Alumina Pty Ltd High temperature processs for causticisation of a bayer liquor
AU2019275940A1 (en) * 2018-05-28 2020-12-10 Alcoa Of Australia Limited Method for controlling the concentration of impurities in bayer liquors
EP3802429A4 (en) * 2018-05-28 2022-03-23 Alcoa of Australia Limited IMPURITY CONTROL METHOD
CN112142071A (zh) * 2020-08-17 2020-12-29 中铝中州铝业有限公司 一种烧结法种分母液处理方法
CN113772700B (zh) * 2021-11-02 2023-08-01 中国铝业股份有限公司 提高拜耳法赤泥料浆稳定性的药剂及其制备方法和应用

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2345134A (en) * 1939-11-27 1944-03-28 Nat Aluminate Corp Sodium aluminate product and process of producing the same
US2519362A (en) * 1943-08-04 1950-08-22 Einar P Flint Method of reducing the concentration of silica in sodium aluminate solutions
FR1231638A (fr) 1957-01-15 1960-09-30 Pechiney Procédé de traitement des minerais d'aluminium
US3120996A (en) 1960-04-19 1964-02-11 Kaiser Aluminium Chem Corp Control of process carbonation in bayer type alumina plants
US3210155A (en) * 1962-05-15 1965-10-05 Ormet Corp Process for treating aluminum containing ores
GB1045545A (en) * 1964-02-10 1966-10-12 Kaiser Aluminium Chem Corp Improvements in or relating to alumina extraction processes
US4059672A (en) * 1973-04-02 1977-11-22 Revere Copper And Brass Incorporated Method of digesting bauxite via the Bayer process with the addition of reducing agents
US4157382A (en) * 1978-04-21 1979-06-05 Aluminum Company Of America Process for preparing low soda pseudoboehmite gel
US4210455A (en) * 1978-10-30 1980-07-01 The Dow Chemical Company Retarded aqueous hydraulic cement slurry
US4302251A (en) * 1978-11-29 1981-11-24 Denki Kagaku Kogyo Kabushiki Kaisha Cement composition containing dextrin
HU180650B (en) * 1979-10-30 1983-04-29 Magyar Aluminium Process for diminishing organic content of bayer cycle of alum earth production
US4275042A (en) * 1980-01-22 1981-06-23 Alcan Research And Development Limited Removal of oxalate from Bayer process liquor
HU187654B (en) 1982-02-26 1986-02-28 Ajkai Timfoeldgyar Aluminium Process for reduction of damages in production of aluminium oxid of bayer system
US4478795A (en) * 1982-10-18 1984-10-23 Diamond Shamrock Chemicals Company Aluminum trihydroxide deliquoring with anionic polymers
DE3403866A1 (de) * 1984-02-04 1985-08-08 Sicowa Verfahrenstechnik für Baustoffe GmbH & Co KG, 5100 Aachen Verfahren zur schnellerhaertung einer giessfaehigen rohmischung
CA1285373C (fr) * 1984-06-25 1991-07-02 Jean Fabre Purification des solutions d'aluminate de sodium du cycle bayer par elimination d'oxalate de sodium
US4609534A (en) * 1984-10-09 1986-09-02 Aluminum Company Of America Lime cleaning process to remove manganese oxide
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
HU207826B (en) 1987-02-23 1993-06-28 Magyar Aluminium Process for producing sodium-aluminate solutions with regenerating sodium-oxide- and aluminium-oxide content of red mud
US4737352A (en) * 1987-04-09 1988-04-12 Nalco Chemical Company Use of surfactants in alumina precipitation in the bayer process
US5122349A (en) * 1988-10-27 1992-06-16 Aluminiumipari Troszt Process for producing alumina
GB8906500D0 (en) * 1989-03-21 1989-05-04 Shell Int Research Process for the production of aluminium hydroxide from bauxite
US5273579A (en) * 1990-06-19 1993-12-28 Mitsubishi Mining And Cement Co., Ltd. Quick setting compositions
EP0465055B1 (en) * 1990-06-25 1997-04-16 Nalco Australia Pty. Limited Crystal growth modification
HU212533B (en) 1990-12-20 1996-07-29 Ajkai Aluminiumipari Kft Method for the thickening of red mud slurry arising during alumearth production
US5387405A (en) * 1992-03-25 1995-02-07 Nalco Chemical Company Bayer liquor polishing
US5364828A (en) * 1992-10-21 1994-11-15 Minerals Technologies Spheroidal aggregate of platy synthetic hydrotalcite
US5346511A (en) * 1993-03-12 1994-09-13 Nalco Chemical Company Antifoam/defoamer compositions for Bayer process
US5488991A (en) * 1994-10-24 1996-02-06 Shell Oil Company Alumina wellbore cement composition
US5853677A (en) * 1996-04-26 1998-12-29 Cytec Technology Corp. Concentration of solids by flocculating in the Bayer process
ES2317703T3 (es) * 1998-09-25 2009-04-16 Bhp Billiton Worsley Alumina Pty Ltd Proceso para la caustificacion de lejias bayer.

Also Published As

Publication number Publication date
US6676910B1 (en) 2004-01-13
JP2003517413A (ja) 2003-05-27
EA002798B1 (ru) 2002-10-31
TR200100811T2 (tr) 2001-07-23
EP1124758B1 (en) 2008-10-29
BR9913933A (pt) 2002-02-19
JP3872956B2 (ja) 2007-01-24
SK287753B6 (sk) 2011-08-04
CA2470673A1 (en) 2000-04-06
AP1701A (en) 2007-01-02
EP1775264A1 (en) 2007-04-18
CA2352953C (en) 2005-11-15
US7767190B2 (en) 2010-08-03
DE69943304D1 (de) 2011-05-05
AU749809B2 (en) 2002-07-04
EP1124758A4 (en) 2005-02-23
CA2470673C (en) 2008-06-03
CN1269737C (zh) 2006-08-16
KR20010079928A (ko) 2001-08-22
ES2317703T3 (es) 2009-04-16
EP1775264B1 (en) 2011-03-23
TR200200090T2 (tr) 2002-05-21
ATE502900T1 (de) 2011-04-15
RS50048B (sr) 2008-11-28
KR100483685B1 (ko) 2005-04-18
EP1124758A1 (en) 2001-08-22
WO2000018684A1 (en) 2000-04-06
OA11658A (en) 2004-12-08
AU5841299A (en) 2000-04-17
CN1526640A (zh) 2004-09-08
EA200100282A1 (ru) 2001-08-27
ATE412612T1 (de) 2008-11-15
SK3352001A3 (en) 2002-06-04
CA2352953A1 (en) 2000-04-06
HUP0103434A3 (en) 2004-10-28
CN1323278A (zh) 2001-11-21
AP2001002110A0 (en) 2001-06-30
CN1186260C (zh) 2005-01-26
DE69939834D1 (de) 2008-12-11
US20030129125A1 (en) 2003-07-10
HUP0103434A2 (hu) 2002-01-28

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