IT1223350B - Composizioni a base di amido metilato e loro uso come agenti flocculanti per residui della bauxite - Google Patents

Composizioni a base di amido metilato e loro uso come agenti flocculanti per residui della bauxite

Info

Publication number
IT1223350B
IT1223350B IT22565/87A IT2256587A IT1223350B IT 1223350 B IT1223350 B IT 1223350B IT 22565/87 A IT22565/87 A IT 22565/87A IT 2256587 A IT2256587 A IT 2256587A IT 1223350 B IT1223350 B IT 1223350B
Authority
IT
Italy
Prior art keywords
flocculating agents
starch compositions
bauxite residues
methylated starch
methylated
Prior art date
Application number
IT22565/87A
Other languages
English (en)
Other versions
IT8722565A0 (it
Inventor
Raymond N Yong
Amar J Sethi
Original Assignee
Suncor Inc
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 Suncor Inc filed Critical Suncor Inc
Publication of IT8722565A0 publication Critical patent/IT8722565A0/it
Application granted granted Critical
Publication of IT1223350B publication Critical patent/IT1223350B/it

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
    • C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
    • 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

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • General Chemical & Material Sciences (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)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Paper (AREA)
IT22565/87A 1987-04-28 1987-11-09 Composizioni a base di amido metilato e loro uso come agenti flocculanti per residui della bauxite IT1223350B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA535765 1987-04-28

Publications (2)

Publication Number Publication Date
IT8722565A0 IT8722565A0 (it) 1987-11-09
IT1223350B true IT1223350B (it) 1990-09-19

Family

ID=4135523

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22565/87A IT1223350B (it) 1987-04-28 1987-11-09 Composizioni a base di amido metilato e loro uso come agenti flocculanti per residui della bauxite

Country Status (5)

Country Link
US (1) US4839060A (it)
AU (1) AU597773B2 (it)
FR (1) FR2614551A1 (it)
GB (1) GB2204051B (it)
IT (1) IT1223350B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU627469B2 (en) * 1988-07-18 1992-08-27 Allied Colloids Limited Recovery of alumina from bauxite
US5106599A (en) * 1990-02-06 1992-04-21 Nalco Chemical Company Alumina crystal growth additive
EP0905091A1 (en) * 1997-09-29 1999-03-31 Nalco Chemical Company Starch/cationic polymer combinations as coagulants for the mining industry
CA2643137C (en) 2005-10-14 2013-07-30 Aquero Company, Llc Amino acid, carbohydrate and acrylamide polymers useful as flocculants in agricultural and industrial settings
DE102006013786A1 (de) * 2006-03-24 2007-09-27 Wolff Cellulosics Gmbh & Co. Kg Methylstärkeether in mineralischen Baustoffen
WO2009085514A2 (en) * 2007-12-28 2009-07-09 Cytec Technology Corp. Reducing autoprecipitation in bayer liquor
CN101942033B (zh) * 2010-09-07 2012-02-01 中科院广州化学有限公司 高甲氧基含量的甲基淀粉及其制备方法与应用
US10913685B1 (en) * 2020-03-06 2021-02-09 Dimtov Corp. Comprehensive mineral supplement

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127239A (en) * 1964-03-31 Method of separation
GB634440A (en) * 1945-10-18 1950-03-22 Directie Staatsmijnen Nl Process for the flocculation of solids in aqueous suspensions
GB688291A (en) * 1950-06-15 1953-03-04 Nat Starch Products Inc Starch product of improved properties and method of making the same
US2806766A (en) * 1952-11-28 1957-09-17 Kaiser Aluminium Chem Corp Process of purifying caustic aluminate liquors
US3142637A (en) * 1961-01-31 1964-07-28 Reynolds Metals Co Flocculating agent and process for digested bauxite slurries
US3135739A (en) * 1961-08-21 1964-06-02 Penick & Ford Ltd Inc Etherifying granule starch in aliphatic ketone solvent medium
US3390959A (en) * 1965-04-30 1968-07-02 Nalco Chemical Co Process of making alumina
SU279603A1 (ru) * 1968-11-25 1978-03-05 Savchenko A I Способ сгущени красного шлама
GB1230332A (it) * 1969-04-09 1971-04-28
US3669915A (en) * 1970-09-08 1972-06-13 Us Agriculture Flocculants from starch graft copolymers
DE2158130C3 (de) * 1971-11-24 1982-10-28 Maizena Gmbh, 2000 Hamburg Verfahren zum Beschleunigen des Absetzens von Rotschlamm
GB1439057A (en) * 1973-10-10 1976-06-09 Allied Colloids Ltd Flocculating agents for alkaline systems
US4382864A (en) * 1980-08-08 1983-05-10 Kurita Water Industries Ltd. Process for dewatering sludges
IT1223351B (it) * 1987-04-28 1990-09-19 Suncor Inc Composizioni a base di amido solfonato e loro uso come agenti flocculanti per residui di bauxite

Also Published As

Publication number Publication date
IT8722565A0 (it) 1987-11-09
FR2614551A1 (fr) 1988-11-04
AU1037888A (en) 1988-11-03
GB8726425D0 (en) 1987-12-16
AU597773B2 (en) 1990-06-07
GB2204051B (en) 1990-07-04
GB2204051A (en) 1988-11-02
US4839060A (en) 1989-06-13

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