IN190927B - - Google Patents

Info

Publication number
IN190927B
IN190927B IN1879CA1996A IN190927B IN 190927 B IN190927 B IN 190927B IN 1879CA1996 A IN1879CA1996 A IN 1879CA1996A IN 190927 B IN190927 B IN 190927B
Authority
IN
India
Prior art keywords
molecular weight
feed stream
hydroxamic acid
bayer process
weight polymer
Prior art date
Application number
Other languages
English (en)
Inventor
Robert W Cole
Original Assignee
Cytec Tech Corp
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 Cytec Tech Corp filed Critical Cytec Tech Corp
Publication of IN190927B publication Critical patent/IN190927B/en

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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
IN1879CA1996 1995-10-31 1996-10-30 IN190927B (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/550,908 US5601726A (en) 1994-06-06 1995-10-31 Hydroxameted polymers in the bayer process to reduce solids

Publications (1)

Publication Number Publication Date
IN190927B true IN190927B (enExample) 2003-09-06

Family

ID=24199067

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1879CA1996 IN190927B (enExample) 1995-10-31 1996-10-30

Country Status (12)

Country Link
US (1) US5601726A (enExample)
EP (1) EP0858430B1 (enExample)
CN (1) CN1198724A (enExample)
AT (1) ATE196129T1 (enExample)
AU (1) AU699929B2 (enExample)
BR (1) BR9611181A (enExample)
DE (1) DE69610215D1 (enExample)
IN (1) IN190927B (enExample)
OA (1) OA10763A (enExample)
RU (1) RU2147013C1 (enExample)
UA (1) UA53631C2 (enExample)
WO (1) WO1997016378A1 (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE149971T1 (de) * 1992-12-14 1997-03-15 Nalco Chemical Co Änderung der trihydrat-kristalle im bayer- verfahren
WO1997017293A1 (en) * 1995-11-07 1997-05-15 Cytec Technology Corp. Reduction of impurities in bayer process alumina trihydrate
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
AU726700B2 (en) * 1996-10-16 2000-11-16 Nalco Chemical Company Improved flocculation 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
US6248302B1 (en) 2000-02-04 2001-06-19 Goldendale Aluminum Company Process for treating red mud to recover metal values therefrom
US6432321B1 (en) * 2000-09-19 2002-08-13 Baffin, Inc. Elixir for inducing high-speed settlement of precipatates
AU2006219036B2 (en) * 2005-02-25 2010-12-23 Cytec Technology Corp. Water-in-oil-in water emulsions of hydroxamated polymers and methods for using the same
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
EP2139812B1 (en) * 2007-04-20 2019-01-02 Cytec Technology Corp. Use of silicon-containing polymers to improve red mud flocculation in the bayer process
US7631821B2 (en) * 2007-05-25 2009-12-15 Nalco Company Improving grinding in a alumina extraction process
WO2010044986A1 (en) * 2008-10-17 2010-04-22 Cytec Technology Corp. Use of silicon-containing polymers for improved flocculation of solids in processes for the production of alumina from bauxite
JP2016517385A (ja) * 2013-03-13 2016-06-16 ナルコ カンパニー 架橋されたエチルスルホン化ジヒドロキシプロピルセルロース
US10427950B2 (en) 2015-12-04 2019-10-01 Ecolab Usa Inc. Recovery of mining processing product using boronic acid-containing polymers
CN116802152A (zh) 2021-02-12 2023-09-22 埃科莱布美国股份有限公司 使用硼酸官能化化合物纯化铝土矿矿石

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3493499A (en) * 1968-05-16 1970-02-03 Dow Chemical Co Flocculation of saline solid suspensions
AU536264B2 (en) * 1980-07-23 1984-05-03 Cytec Technology Corp. Process for alumina recovery
US4678585A (en) * 1981-12-30 1987-07-07 American Cyanamid Company Process for alumina recovery
US4478795A (en) * 1982-10-18 1984-10-23 Diamond Shamrock Chemicals Company Aluminum trihydroxide deliquoring with anionic polymers
US4545902A (en) * 1984-09-17 1985-10-08 Nalco Chemical Company Flocculants for bauxite (red mud)
GB8519107D0 (en) * 1985-07-29 1985-09-04 Allied Colloids Ltd Flocculation process
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
GB8907995D0 (en) * 1989-04-10 1989-05-24 Allied Colloids Ltd Recovery of alumina trihydrate in the bayer process
US5178774A (en) * 1990-06-29 1993-01-12 Allied Colloids Limited Purification of aqueous liquor
CA2105333A1 (en) * 1992-09-14 1994-03-15 Robert P. Mahoney Trihydrate clarification aid for the bayer process
US5217620A (en) * 1992-11-23 1993-06-08 Nalco Chemical Company Clarification aid for the Bayer process
US5539046A (en) * 1994-11-04 1996-07-23 Cytec Technology Corp. Blends of hydroxamated polymer emulsions with polyacrylate emulsions

Also Published As

Publication number Publication date
AU7480096A (en) 1997-05-22
WO1997016378A1 (en) 1997-05-09
US5601726A (en) 1997-02-11
RU2147013C1 (ru) 2000-03-27
EP0858430A1 (en) 1998-08-19
CN1198724A (zh) 1998-11-11
EP0858430B1 (en) 2000-09-06
ATE196129T1 (de) 2000-09-15
BR9611181A (pt) 1999-12-28
UA53631C2 (uk) 2003-02-17
DE69610215D1 (de) 2000-10-12
AU699929B2 (en) 1998-12-17
OA10763A (en) 2002-12-13

Similar Documents

Publication Publication Date Title
IN190927B (enExample)
EP0314855A3 (en) Polymers containing hydroxamic acid groups for reduction of suspended solids in bayer process streams
AU625642B2 (en) Flocculation of red mud using dextran and a synthetic polyanion in bauxite processing
ATE88197T1 (de) Verfahren zur herstellung von durchsichtigen blockkopolymeren.
CA2073419A1 (en) A method of treating bctmp/ctmp wastewater
ATE208408T1 (de) Polymerstabilisation durch einen stabilen freien radikal
ZA9811536B (en) Polymeric products containing modified carbon products and methods of making and using the same.
GB1417344A (en) Recovery of sucrose
GB1212237A (en) Improvements in or relating to methods of separating inorganic impurities from sewage and of making a soil improving composition from the impurities separated
IL139816A0 (en) Continuous polyamidation process
MY118983A (en) Method of making polymers containing hydroxamate functional groups
ATE89018T1 (de) Wasserloesliche quartaere polyammoniumsalze, verfahren zu ihrer herstellung und ihre verwendung.
NZ508464A (en) Method for treatment of aqueous streams comprising biosolids using an anionic inorganic colloid and an organic polymer
WO2000005354A3 (de) Enzymhaltige polymere
ES8106919A1 (es) Procedimiento de polimerizacion en solucion
ES446176A1 (es) Procedimiento para descarbonizacion lenta de agua.
CA2175128A1 (en) Color removal from effluent waters
EP0372599A3 (en) Process for the polymerization of structurally different monomers
MY121689A (en) Method for separating and recovering objective component
JPS523679A (en) Apparatus for purifying alpha-olefin polymers
EP0211338A3 (en) Process for making alumina
JPS54151915A (en) Purification of acrylonitrile
GB1150725A (en) Improvements in the Manufacture of Block Copolyamides
SU1748420A1 (ru) Полиметакрилоилоксиэтилтриметиламмоний метилсульфат в качестве флокулянта для кондиционирования осадков сточных вод и способ его получения
JPS5466618A (en) Preparation of acrylamide