EP1044164A4 - Improvements relating to the bayer process - Google Patents

Improvements relating to the bayer process

Info

Publication number: EP1044164A4
Authority: EP; European Patent Office
Prior art keywords: improvements relating; bayer process; bayer; relating
Prior art date: 1997-12-11
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP98963023A

Other languages

German (de)

French (fr)

Other versions

EP1044164A1 (en

Inventor

John David Kildea

Grant William Doberer

John Christopher Meldrum

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.)

1997-12-11

Filing date

1998-12-10

Publication date

2002-09-04

1998-12-10 Application filed by Nalco Chemical Co filed Critical Nalco Chemical Co

2000-10-18 Publication of EP1044164A1 publication Critical patent/EP1044164A1/en

2002-09-04 Publication of EP1044164A4 publication Critical patent/EP1044164A4/en

Status Withdrawn legal-status Critical Current

Links

Classifications

- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0007—Preliminary treatment of ores or scrap or any other metal source
- 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
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances

EP98963023A 1997-12-11 1998-12-10 Improvements relating to the bayer process Withdrawn EP1044164A4 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
AUPP084997		1997-12-11
AUPP0849A AUPP084997A0 (en)	1997-12-11	1997-12-11	Improvements relating to the bayer process
PCT/US1998/026206 WO1999029626A1 (en)	1997-12-11	1998-12-10	Improvements relating to the bayer process

Publications (2)

Publication Number	Publication Date
EP1044164A1 EP1044164A1 (en)	2000-10-18
EP1044164A4 true EP1044164A4 (en)	2002-09-04

Family

ID=3805134

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP98963023A Withdrawn EP1044164A4 (en)	1997-12-11	1998-12-10	Improvements relating to the bayer process

Country Status (4)

Country	Link
EP (1)	EP1044164A4 (en)
AU (2)	AUPP084997A0 (en)
BR (1)	BR9813467A (en)
WO (1)	WO1999029626A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10009369A1 (en) *	2000-02-29	2001-08-30	Vaw Ver Aluminium Werke Ag	Production of aluminum hydroxide gel, used e.g. as mordant, filler and pigment or in antihidrotic, toothpaste, paper, ceramics or abrasive, involves precipitation from diluted alkaline aluminate liquor, filtration, washing and drying
TW200303987A (en) *	2002-02-19	2003-09-16	Kyowa Medex Co Ltd	Adhesion inhibiting agent for preventing metal hydroxide-containing substance from adhering to the drain line of automatic analyzer
US9284625B2 (en)	2007-11-20	2016-03-15	Nalco Company	Use of polyols as scale control reagents in the mining processes
US9416490B2 (en)	2010-03-10	2016-08-16	Nalco Company	Cross-linked glycerol based polymers as digestion aids for improving wood pulping processes
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
EP2886178A1 (en) *	2013-12-20	2015-06-24	Rio Tinto Alcan International Limited	Process and installation for producing alumina trihydrate by alkaline digestion of bauxite ore
US10427950B2 (en)	2015-12-04	2019-10-01	Ecolab Usa Inc.	Recovery of mining processing product using boronic acid-containing polymers

Citations (7)

* 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
US4561982A (en) *	1982-10-25	1985-12-31	Mitsubishi Gas Chemical Company, Inc.	Scale inhibitor
EP0392779A1 (en) *	1989-04-10	1990-10-17	Ciba Specialty Chemicals Water Treatments Limited	Recovery of alumina trihydrate in the Bayer process
US5008089A (en) *	1988-10-14	1991-04-16	Allied Colloids Limited	Recovery of alumina from bauxite
EP0465055A1 (en) *	1990-06-25	1992-01-08	Nalco Australia Pty. Limited	Crystal growth modification
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
US5217620A (en) *	1992-11-23	1993-06-08	Nalco Chemical Company	Clarification aid for the Bayer process

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3127239A (en) *		1964-03-31		Method of separation
US2280998A (en) *	1940-04-13	1942-04-28	Aluminum Co Of America	Alumina recovery process
US2930677A (en) *	1955-01-31	1960-03-29	Kaiser Aluminium Chem Corp	Method of handling liquors containing scale forming compounds
US2935377A (en) *	1957-08-23	1960-05-03	Kaiser Aluminium Chem Corp	Starch-borax settling aid and process of using
US3142637A (en) *	1961-01-31	1964-07-28	Reynolds Metals Co	Flocculating agent and process for digested bauxite slurries
US3397953A (en) *	1965-03-04	1968-08-20	Atlas Chem Ind	Flocculating agent
US3681012A (en) *	1969-06-17	1972-08-01	Nalco Chemical Co	Process for making alumina
US3966874A (en) *	1975-05-14	1976-06-29	Reynolds Metals Company	Extraction of alumina from bauxite ores

1997
- 1997-12-11 AU AUPP0849A patent/AUPP084997A0/en not_active Abandoned
1998
- 1998-12-10 WO PCT/US1998/026206 patent/WO1999029626A1/en not_active Application Discontinuation
- 1998-12-10 AU AU18135/99A patent/AU1813599A/en not_active Abandoned
- 1998-12-10 BR BR9813467-1A patent/BR9813467A/en not_active Application Discontinuation
- 1998-12-10 EP EP98963023A patent/EP1044164A4/en not_active Withdrawn

Patent Citations (7)

* 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
US4561982A (en) *	1982-10-25	1985-12-31	Mitsubishi Gas Chemical Company, Inc.	Scale inhibitor
US5008089A (en) *	1988-10-14	1991-04-16	Allied Colloids Limited	Recovery of alumina from bauxite
EP0392779A1 (en) *	1989-04-10	1990-10-17	Ciba Specialty Chemicals Water Treatments Limited	Recovery of alumina trihydrate in the Bayer process
EP0465055A1 (en) *	1990-06-25	1992-01-08	Nalco Australia Pty. Limited	Crystal growth modification
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
US5217620A (en) *	1992-11-23	1993-06-08	Nalco Chemical Company	Clarification aid for the Bayer process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9929626A1 *

Also Published As

Publication number	Publication date
AUPP084997A0 (en)	1998-01-08
BR9813467A (en)	2000-10-10
EP1044164A1 (en)	2000-10-18
AU1813599A (en)	1999-06-28
WO1999029626A1 (en)	1999-06-17

Legal Events

Date	Code	Title	Description
2000-09-01	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2000-10-18	17P	Request for examination filed	Effective date: 20000707
2000-10-18	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): IE IT
2002-09-04	A4	Supplementary search report drawn up and despatched	Effective date: 20020718
2002-09-04	AK	Designated contracting states	Kind code of ref document: A4 Designated state(s): IE IT
2002-09-04	RIC1	Information provided on ipc code assigned before grant	Free format text: 7C 01F 7/04 A, 7C 22B 21/00 B, 7C 02F 5/10 B
2002-11-20	17Q	First examination report despatched	Effective date: 20021002
2003-10-03	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
2003-11-19	18D	Application deemed to be withdrawn	Effective date: 20030415

Publication	Publication Date	Title
GB9701251D0 (en)	1997-03-12	Process
GB2330556B (en)	2001-09-12	Process
GB9723295D0 (en)	1998-01-07	Novel process
GB9719426D0 (en)	1997-11-12	Novel process
EP0986389A4 (en)	2001-09-12	Novel process
EP1044164A4 (en)	2002-09-04	Improvements relating to the bayer process
GB9722447D0 (en)	1997-12-24	Process
GB9714383D0 (en)	1997-09-10	Improved process
GB9700690D0 (en)	1997-03-05	Novel process
GB9700331D0 (en)	1997-02-26	Process
GB9708280D0 (en)	1997-06-18	Novel process
ZA983900B (en)	1998-11-13	Process to 5-methyleneoxazolenes
GB9713551D0 (en)	1997-09-03	Novel process
GB9716566D0 (en)	1997-10-08	Novel process
GB9711095D0 (en)	1997-07-23	Novel process
GB9711103D0 (en)	1997-07-23	Novel process
GB9711106D0 (en)	1997-07-23	Novel process
GB9711936D0 (en)	1997-08-06	Novel process
GB9713097D0 (en)	1997-08-27	Novel process
GB9713155D0 (en)	1997-08-27	Novel process
GB9703338D0 (en)	1997-04-09	Novel process
GB9713552D0 (en)	1997-09-03	Novel process
GB9713554D0 (en)	1997-09-03	Novel process
GB9714012D0 (en)	1997-09-10	Novel process
GB9714042D0 (en)	1997-09-10	Novel process