DE3875061T2 - Hydroxamsaeuren-gruppen enhaltende polymere fuer die reduzierung von schwebenden festen koerpern in bayer-verfahren-stroemen. - Google Patents

Hydroxamsaeuren-gruppen enhaltende polymere fuer die reduzierung von schwebenden festen koerpern in bayer-verfahren-stroemen.

Info

Publication number
DE3875061T2
DE3875061T2 DE8888100433T DE3875061T DE3875061T2 DE 3875061 T2 DE3875061 T2 DE 3875061T2 DE 8888100433 T DE8888100433 T DE 8888100433T DE 3875061 T DE3875061 T DE 3875061T DE 3875061 T2 DE3875061 T2 DE 3875061T2
Authority
DE
Germany
Prior art keywords
bavarian
reduction
polymers containing
process flows
solid bodies
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.)
Expired - Lifetime
Application number
DE8888100433T
Other languages
English (en)
Other versions
DE3875061D1 (de
Inventor
Wei S Yen
Donald Paul Spitzer
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21760238&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3875061(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Application granted granted Critical
Publication of DE3875061D1 publication Critical patent/DE3875061D1/de
Publication of DE3875061T2 publication Critical patent/DE3875061T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • 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
    • 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
DE8888100433T 1987-02-11 1988-01-14 Hydroxamsaeuren-gruppen enhaltende polymere fuer die reduzierung von schwebenden festen koerpern in bayer-verfahren-stroemen. Expired - Lifetime DE3875061T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/013,491 US4767540A (en) 1987-02-11 1987-02-11 Polymers containing hydroxamic acid groups for reduction of suspended solids in bayer process streams

Publications (2)

Publication Number Publication Date
DE3875061D1 DE3875061D1 (de) 1992-11-05
DE3875061T2 true DE3875061T2 (de) 1993-03-25

Family

ID=21760238

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888100433T Expired - Lifetime DE3875061T2 (de) 1987-02-11 1988-01-14 Hydroxamsaeuren-gruppen enhaltende polymere fuer die reduzierung von schwebenden festen koerpern in bayer-verfahren-stroemen.

Country Status (12)

Country Link
US (1) US4767540A (de)
EP (1) EP0314855B1 (de)
JP (1) JP2584469B2 (de)
AU (1) AU600087B2 (de)
BR (1) BR8800540A (de)
CA (1) CA1334562C (de)
DE (1) DE3875061T2 (de)
ES (1) ES2043690T3 (de)
HU (1) HU206067B (de)
IE (1) IE62420B1 (de)
SU (1) SU1687029A3 (de)
YU (1) YU46251B (de)

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US5951955A (en) * 1995-11-07 1999-09-14 Cytec Technology Corp. Concentration of solids in the Bayer process
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AU720125B2 (en) * 1995-11-07 2000-05-25 Cytec Technology Corp. Reduction of impurities in bayer process alumina trihydrate
US5688403A (en) * 1996-02-29 1997-11-18 Cytec Technology Corp. Removal of metal ions from solution
MY118983A (en) * 1996-04-01 2005-02-28 Cytec Tech Corp Method of making polymers containing hydroxamate functional groups
US5853677A (en) * 1996-04-26 1998-12-29 Cytec Technology Corp. Concentration of solids by flocculating in the Bayer process
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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
US6726845B1 (en) 1998-05-25 2004-04-27 Ondeo Nalco Company Dextran starch and flocculant combination for improving red mud clarification
BR9913933A (pt) * 1998-09-25 2002-02-19 Worsley Alumina Pty Ltd Causticização bayer aperfeiçoada
US6077486A (en) * 1999-03-25 2000-06-20 Cytec Technology Corp. Process for purifying alumina by mixing a Bayer process stream containing sodium aluminate with amidoxime polymer to reduce the level of iron
US6372882B1 (en) 2000-04-03 2002-04-16 Nalco Chemical Company Method for producing substantially dry water-insoluble polymers for improved flocculation in the bayer process
US6669852B2 (en) * 2000-10-30 2003-12-30 Showa Denko Kabushiki Kaisha Separation method of goethite-containing red mud
JP2002137919A (ja) * 2000-10-30 2002-05-14 Showa Denko Kk ゲーサイトを含む赤泥の分離方法
US6527959B1 (en) 2001-01-29 2003-03-04 Ondeo Nalco Company Method of clarifying bayer process liquors using salicylic acid containing polymers
US7138472B2 (en) * 2001-01-29 2006-11-21 Nalco Company High molecular weight polymers containing pendant salicylic acid groups for clarifying bayer process liquors
US7153436B2 (en) * 2003-02-13 2006-12-26 Patrick W Bair Method for enhancing cyclonic vessel efficiency with polymeric additives
GB0310419D0 (en) * 2003-05-07 2003-06-11 Ciba Spec Chem Water Treat Ltd Treatment of aqueous suspensions
AU2006100744C4 (en) * 2003-05-07 2007-08-02 Ciba Specialty Chemicals Water Treatments Limited Treatment of Aqueous Suspensions
AU2011213769A1 (en) * 2003-05-07 2011-09-15 Ciba Specialty Chemicals Water Treatments Limited Treatment of Aqueous Suspensions
US8971913B2 (en) * 2003-06-27 2015-03-03 Qualcomm Incorporated Method and apparatus for wireless network hybrid positioning
UA89663C2 (ru) * 2005-02-25 2010-02-25 Сайтек Текнолоджи Корп. Способ флоккуляции и композиция, содержащая эмульсии типа "вода в масле в воде"
CN101223199B (zh) 2005-07-20 2014-08-13 株式会社普利司通 胺官能化聚合物
WO2007091220A1 (en) * 2006-02-09 2007-08-16 Pebble Bed Modular Reactor (Proprietary) Limited Nuclear plant with a pebble bed nuclear reactor
AU2013201696B2 (en) * 2007-04-20 2014-03-27 Cytec Technology Corp. Use of silicon-containing polymers to improve red mud flocculation in the Bayer process
JP5350362B2 (ja) * 2007-04-20 2013-11-27 サイテク・テクノロジー・コーポレーシヨン バイエル工程における赤泥凝集を向上させるためのケイ素含有重合体の使用
CA2740842C (en) * 2008-10-17 2017-12-05 Cytec Technology Corp. Use of silicon-containing polymers for improved flocculation of solids in processes for the production of alumina from bauxite
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WO2011032258A1 (en) 2009-09-15 2011-03-24 Suncor Energy Inc. Process for flocculating and dewatering oil sand mature fine tailings
WO2011050440A1 (en) 2009-10-30 2011-05-05 Suncor Energy Inc. Depositing and farming methods for drying oil sand mature fine tailings
CN102858462A (zh) * 2010-02-12 2013-01-02 塞特克技术公司 包含含硅聚合物的絮凝剂组合物
CA2898486C (en) * 2010-05-20 2018-04-24 William Matthew Martin Method and device for in-line injection of flocculent agent into a fluid flow of mature fine tailings
US9199855B2 (en) 2010-08-09 2015-12-01 Nalco Company Chemical treatment to improve red mud separation and washing in the bayer process
UA109689C2 (uk) 2010-12-21 2015-09-25 Спосіб діставання гідразину з розчинів гідроксиламіну
ES2933038T3 (es) 2010-12-21 2023-01-31 Cytec Tech Corp Microdispersiones de polímeros hidroxamados y métodos para fabricarlos y usarlos
CN103819592B (zh) * 2014-03-05 2015-12-02 中南大学 一种有效沉降分离高硅高铁型拜耳法赤泥的絮凝剂的制备方法
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Also Published As

Publication number Publication date
YU25388A (en) 1989-12-31
EP0314855B1 (de) 1992-09-30
AU1149488A (en) 1988-08-18
JPS63248717A (ja) 1988-10-17
AU600087B2 (en) 1990-08-02
YU46251B (sh) 1993-05-28
ES2043690T3 (es) 1994-01-01
EP0314855A3 (de) 1991-04-03
JP2584469B2 (ja) 1997-02-26
BR8800540A (pt) 1988-09-27
IE880359L (en) 1988-08-11
SU1687029A3 (ru) 1991-10-23
CA1334562C (en) 1995-02-28
DE3875061D1 (de) 1992-11-05
HU206067B (en) 1992-08-28
HUT46285A (en) 1988-10-28
IE62420B1 (en) 1995-01-25
EP0314855A2 (de) 1989-05-10
US4767540A (en) 1988-08-30

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Legal Events

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8363 Opposition against the patent
8365 Fully valid after opposition proceedings