DE60016055D1 - Filterhilfsmittel für das Bayerverfahren - Google Patents

Filterhilfsmittel für das Bayerverfahren

Info

Publication number
DE60016055D1
DE60016055D1 DE60016055T DE60016055T DE60016055D1 DE 60016055 D1 DE60016055 D1 DE 60016055D1 DE 60016055 T DE60016055 T DE 60016055T DE 60016055 T DE60016055 T DE 60016055T DE 60016055 D1 DE60016055 D1 DE 60016055D1
Authority
DE
Germany
Prior art keywords
bayer process
filter aids
treating agent
blend
starch
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 - Fee Related
Application number
DE60016055T
Other languages
English (en)
Other versions
DE60016055T2 (de
Inventor
Scott Barham
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.)
ChampionX LLC
Original Assignee
Nalco Chemical 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
Application filed by Nalco Chemical Co filed Critical Nalco Chemical Co
Publication of DE60016055D1 publication Critical patent/DE60016055D1/de
Application granted granted Critical
Publication of DE60016055T2 publication Critical patent/DE60016055T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • C01F7/46—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
    • 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
DE60016055T 1999-01-20 2000-01-19 Filterhilfsmittel für das Bayerverfahren Expired - Fee Related DE60016055T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPP8258A AUPP825899A0 (en) 1999-01-20 1999-01-20 Filtration aid for the bayer process
AUPP825899 1999-01-20

Publications (2)

Publication Number Publication Date
DE60016055D1 true DE60016055D1 (de) 2004-12-30
DE60016055T2 DE60016055T2 (de) 2005-11-24

Family

ID=3812461

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60016055T Expired - Fee Related DE60016055T2 (de) 1999-01-20 2000-01-19 Filterhilfsmittel für das Bayerverfahren

Country Status (10)

Country Link
US (1) US6740249B1 (de)
EP (1) EP1022253B1 (de)
AT (1) ATE283240T1 (de)
AU (1) AUPP825899A0 (de)
BR (1) BR0000128B1 (de)
DE (1) DE60016055T2 (de)
DK (1) DK1022253T3 (de)
ES (1) ES2231111T3 (de)
PT (1) PT1022253E (de)
RO (1) RO120321B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPQ889100A0 (en) * 2000-07-20 2000-08-10 Worsley Alumina Pty Ltd Improved process for filter aid production in alumina refineries
US8971913B2 (en) * 2003-06-27 2015-03-03 Qualcomm Incorporated Method and apparatus for wireless network hybrid positioning
CN100411706C (zh) * 2006-08-01 2008-08-20 中国铝业股份有限公司 一种铝土矿选精矿的脱水方法
US8298508B2 (en) 2010-08-09 2012-10-30 Nalco Company Recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides
US9102995B2 (en) 2010-08-09 2015-08-11 Nalco Company Cross-linked ethylsulfonated dihydroxypropyl cellulose
US9199855B2 (en) 2010-08-09 2015-12-01 Nalco Company Chemical treatment to improve red mud separation and washing in the bayer process
US9187337B2 (en) * 2010-09-06 2015-11-17 Alcoa Of Australia Limited Method of increasing the stability of a Bayer process liquor
US10427950B2 (en) 2015-12-04 2019-10-01 Ecolab Usa Inc. Recovery of mining processing product using boronic acid-containing polymers

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3085853A (en) * 1958-12-23 1963-04-16 Dow Chemical Co Method of employing dextrans
US3397953A (en) * 1965-03-04 1968-08-20 Atlas Chem Ind Flocculating agent
US3541009A (en) * 1968-12-18 1970-11-17 Nalco Chemical Co Polymer-polysaccharide-caustic alkali compositions and process of separating solids from aqueous suspensions therewith
US3681012A (en) * 1969-06-17 1972-08-01 Nalco Chemical Co Process for making alumina
US5091159A (en) 1991-06-10 1992-02-25 Nalco Chemical Company Use of dextran as a filtration aid for thickener overflow filtration in Kelly filters in the Bayer process
US5387405A (en) * 1992-03-25 1995-02-07 Nalco Chemical Company Bayer liquor polishing
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
AU707514B2 (en) 1995-04-05 1999-07-15 Nalco Chemical Company Biopolymer use as a sand filter aid

Also Published As

Publication number Publication date
DE60016055T2 (de) 2005-11-24
ES2231111T3 (es) 2005-05-16
AUPP825899A0 (en) 1999-02-11
US6740249B1 (en) 2004-05-25
DK1022253T3 (da) 2005-02-21
EP1022253B1 (de) 2004-11-24
BR0000128A (pt) 2000-09-05
EP1022253A1 (de) 2000-07-26
BR0000128B1 (pt) 2011-05-17
RO120321B1 (ro) 2005-12-30
PT1022253E (pt) 2005-04-29
ATE283240T1 (de) 2004-12-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee