WO2012021375A3 - The recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides - Google Patents

The recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides Download PDF

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Publication number
WO2012021375A3
WO2012021375A3 PCT/US2011/046579 US2011046579W WO2012021375A3 WO 2012021375 A3 WO2012021375 A3 WO 2012021375A3 US 2011046579 W US2011046579 W US 2011046579W WO 2012021375 A3 WO2012021375 A3 WO 2012021375A3
Authority
WO
WIPO (PCT)
Prior art keywords
cross
polysaccharides
recovery
bayer process
linked
Prior art date
Application number
PCT/US2011/046579
Other languages
French (fr)
Other versions
WO2012021375A2 (en
Inventor
Jing Wang
Heinrich E. Bode
Xiaojin Harry Li
Original Assignee
Nalco Company
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 Company filed Critical Nalco Company
Priority to BR112013002971-4A priority Critical patent/BR112013002971B1/en
Priority to AU2011289700A priority patent/AU2011289700B2/en
Priority to RU2013105410/05A priority patent/RU2573678C2/en
Priority to CN201180038832.7A priority patent/CN103068735B/en
Publication of WO2012021375A2 publication Critical patent/WO2012021375A2/en
Publication of WO2012021375A3 publication Critical patent/WO2012021375A3/en
Priority to AU2016203536A priority patent/AU2016203536B2/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00Compounds of aluminium
    • C01F7/02Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/14Aluminium oxide or hydroxide from alkali metal aluminates
    • C01F7/144Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process
    • C01F7/145Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process characterised by the use of a crystal growth modifying agent other than aluminium hydroxide seed
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00Compounds of aluminium
    • C01F7/02Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06Preparation 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
    • C01F7/0646Separation of the insoluble residue, e.g. of red mud
    • C01F7/0653Separation of the insoluble residue, e.g. of red mud characterised by the flocculant added to the slurry
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00Compounds of aluminium
    • C01F7/02Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/14Aluminium oxide or hydroxide from alkali metal aluminates
    • C01F7/144Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process
    • C01F7/148Separation of the obtained hydroxide, e.g. by filtration or dewatering
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00Compounds of aluminium
    • C01F7/02Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47Purification 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

Abstract

The invention provides methods and compositions for improving the production of alumina hydrate. The invention involves adding one or more polysaccharides to liquor or slurry in the fluid circuit of the production process. The one or more polysaccharides can be a cross-linked polysaccharide (such as cross-linked dextran or cross-linked dihydroxypropyl cellulose). The various polysaccharides can impart a number of advantages including at least some of: greater flocculation effectiveness, increasing the maximum effective dosage, faster settling rate. The production process can be a Bayer process.
PCT/US2011/046579 2010-08-09 2011-08-04 The recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides WO2012021375A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BR112013002971-4A BR112013002971B1 (en) 2010-08-09 2011-08-04 method to produce alumina
AU2011289700A AU2011289700B2 (en) 2010-08-09 2011-08-04 The recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides
RU2013105410/05A RU2573678C2 (en) 2010-08-09 2011-08-04 Extraction of aluminium oxide trihydrate in bayer process with application of cross-linked polysaccharides
CN201180038832.7A CN103068735B (en) 2010-08-09 2011-08-04 Recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides
AU2016203536A AU2016203536B2 (en) 2010-08-09 2016-05-28 The recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/852,910 US8298508B2 (en) 2010-08-09 2010-08-09 Recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides
US12/852,910 2010-08-09

Publications (2)

Publication Number Publication Date
WO2012021375A2 WO2012021375A2 (en) 2012-02-16
WO2012021375A3 true WO2012021375A3 (en) 2012-05-24

Family

ID=45556307

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/046579 WO2012021375A2 (en) 2010-08-09 2011-08-04 The recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides

Country Status (6)

Country Link
US (1) US8298508B2 (en)
CN (1) CN103068735B (en)
AU (2) AU2011289700B2 (en)
BR (1) BR112013002971B1 (en)
RU (1) RU2573678C2 (en)
WO (1) WO2012021375A2 (en)

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* Cited by examiner, † Cited by third party
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US8971913B2 (en) * 2003-06-27 2015-03-03 Qualcomm Incorporated Method and apparatus for wireless network hybrid positioning
US8778140B2 (en) 2007-09-12 2014-07-15 Nalco Company Preflocculation of fillers used in papermaking
US9752283B2 (en) 2007-09-12 2017-09-05 Ecolab Usa Inc. Anionic preflocculation of fillers used in papermaking
US8088250B2 (en) 2008-11-26 2012-01-03 Nalco Company Method of increasing filler content in papermaking
US9199855B2 (en) 2010-08-09 2015-12-01 Nalco Company Chemical treatment to improve red mud separation and washing in the bayer process
US9102995B2 (en) 2010-08-09 2015-08-11 Nalco Company Cross-linked ethylsulfonated dihydroxypropyl cellulose
US9174852B2 (en) 2010-08-09 2015-11-03 Nalco Company Methods to improve filtration for the Bayer process
CN104768627B (en) * 2012-10-29 2017-03-22 纳尔科公司 Methods to improve filtration for the bayer process
TWI487823B (en) 2012-11-01 2015-06-11 Nalco Co Preflocculation of fillers used in papermaking
EP2938575B1 (en) * 2012-12-28 2021-01-20 Nalco Company Chemical treatment to improve red mud separation and washing in the bayer process
AU2014242325B2 (en) * 2013-03-13 2016-12-15 Nalco Company Cross-linked ethylsulfonated dihydroxypropyl cellulose
US9303360B2 (en) 2013-08-08 2016-04-05 Ecolab Usa Inc. Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process
US9034145B2 (en) 2013-08-08 2015-05-19 Ecolab Usa Inc. Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention, wet strength, and dry strength in papermaking process
US9410288B2 (en) 2013-08-08 2016-08-09 Ecolab Usa Inc. Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process
US9834730B2 (en) 2014-01-23 2017-12-05 Ecolab Usa Inc. Use of emulsion polymers to flocculate solids in organic liquids
US10570347B2 (en) 2015-10-15 2020-02-25 Ecolab Usa Inc. Nanocrystalline cellulose and polymer-grafted nanocrystalline cellulose as rheology modifying agents for magnesium oxide and lime slurries
US10427950B2 (en) 2015-12-04 2019-10-01 Ecolab Usa Inc. Recovery of mining processing product using boronic acid-containing polymers
CN110997593B (en) 2017-07-17 2023-01-24 埃科莱布美国股份有限公司 Method for modifying the rheology of a slurry
CN115477409B (en) * 2021-05-31 2024-02-13 中国石油化工股份有限公司 HPPO wastewater treatment method

Citations (4)

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US5217620A (en) * 1992-11-23 1993-06-08 Nalco Chemical Company Clarification aid for the Bayer process
US6605674B1 (en) * 2000-06-29 2003-08-12 Ondeo Nalco Company Structurally-modified polymer flocculants
US20080107578A1 (en) * 2006-11-07 2008-05-08 Jing Wang The recovery of alumina trihydrate during the bayer process using a water continuous polymer
WO2009085514A2 (en) * 2007-12-28 2009-07-09 Cytec Technology Corp. Reducing autoprecipitation in bayer liquor

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US4737352A (en) 1987-04-09 1988-04-12 Nalco Chemical Company Use of surfactants in alumina precipitation in the bayer process
US5049612A (en) 1988-05-02 1991-09-17 Falconbridge Limited Depressant for flotation separation of polymetallic sulphidic ores
GB8824176D0 (en) 1988-10-14 1988-11-23 Allied Colloids Ltd Recovery of alumina from bauxite
GB8907995D0 (en) 1989-04-10 1989-05-24 Allied Colloids Ltd Recovery of alumina trihydrate in the bayer process
SU1838237A3 (en) * 1989-11-09 1993-08-30 Эллaйд Koллoидc Лиmиteд Method to recover aluminium oxide of a bauxite
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Publication number Priority date Publication date Assignee Title
US5217620A (en) * 1992-11-23 1993-06-08 Nalco Chemical Company Clarification aid for the Bayer process
US6605674B1 (en) * 2000-06-29 2003-08-12 Ondeo Nalco Company Structurally-modified polymer flocculants
US20080107578A1 (en) * 2006-11-07 2008-05-08 Jing Wang The recovery of alumina trihydrate during the bayer process using a water continuous polymer
WO2009085514A2 (en) * 2007-12-28 2009-07-09 Cytec Technology Corp. Reducing autoprecipitation in bayer liquor

Also Published As

Publication number Publication date
CN103068735A (en) 2013-04-24
AU2011289700B2 (en) 2016-05-12
US8298508B2 (en) 2012-10-30
US20120034142A1 (en) 2012-02-09
CN103068735B (en) 2015-03-18
BR112013002971B1 (en) 2021-01-26
AU2011289700A1 (en) 2013-02-21
WO2012021375A2 (en) 2012-02-16
RU2013105410A (en) 2014-09-20
AU2016203536A1 (en) 2016-06-23
BR112013002971A2 (en) 2016-06-07
RU2573678C2 (en) 2016-01-27
AU2016203536B2 (en) 2017-11-30

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