EP4065738A4 - A method and an apparatus of purifying a bayer process stream - Google Patents

A method and an apparatus of purifying a bayer process stream Download PDF

Info

Publication number: EP4065738A4
Authority: EP; European Patent Office
Prior art keywords: purifying; process stream; bayer process; bayer; stream
Prior art date: 2019-11-25
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.): Pending

Application number

EP20894864.6A

Other languages

German (de)

French (fr)

Other versions

EP4065738A1 (en

Inventor

Sanelle VANWYK

Brian Craig GERRELL

Yaqiong REN

Tomas MACH

Warren STAKER

Adrian Richard MULLINS

Howard FELL

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.)

Rio Tinto Alcan International Ltd

Original Assignee

Rio Tinto Alcan International Ltd

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.)

2019-11-25

Filing date

2020-11-25

Publication date

2024-01-03

2019-11-25 Priority claimed from AU2019904448A external-priority patent/AU2019904448A0/en

2020-11-25 Application filed by Rio Tinto Alcan International Ltd filed Critical Rio Tinto Alcan International Ltd

2022-10-05 Publication of EP4065738A1 publication Critical patent/EP4065738A1/en

2024-01-03 Publication of EP4065738A4 publication Critical patent/EP4065738A4/en

Status Pending legal-status Critical Current

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0446—Juxtaposition of mixers-settlers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0488—Flow sheets
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0492—Applications, solvents used
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/03—Processes of filtration using flocculating agents
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
- B01D37/048—Controlling the filtration by temperature measuring
- 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
- C01F7/46—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
- C01F7/473—Removal of organic compounds, e.g. sodium oxalate
- 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
- C22B21/0015—Obtaining aluminium by wet processes
- C22B21/0023—Obtaining aluminium by wet processes from waste materials
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Geology (AREA)
Life Sciences & Earth Sciences (AREA)
Metallurgy (AREA)
Inorganic Chemistry (AREA)
Manufacturing & Machinery (AREA)
General Health & Medical Sciences (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Health & Medical Sciences (AREA)
Environmental & Geological Engineering (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Extraction Or Liquid Replacement (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Physical Or Chemical Processes And Apparatus (AREA)

EP20894864.6A 2019-11-25 2020-11-25 A method and an apparatus of purifying a bayer process stream Pending EP4065738A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
AU2019904448A AU2019904448A0 (en)		2019-11-25	A method and apparatus of purifying a bayer process stream
PCT/IB2020/061113 WO2021105889A1 (en)	2019-11-25	2020-11-25	A method and an apparatus of purifying a bayer process stream

Publications (2)

Publication Number	Publication Date
EP4065738A1 EP4065738A1 (en)	2022-10-05
EP4065738A4 true EP4065738A4 (en)	2024-01-03

Family

ID=76130079

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20894864.6A Pending EP4065738A4 (en)	2019-11-25	2020-11-25	A method and an apparatus of purifying a bayer process stream

Country Status (5)

Country	Link
EP (1)	EP4065738A4 (en)
CN (1)	CN114787397B (en)
AU (1)	AU2020393071A1 (en)
BR (1)	BR112022010081A2 (en)
WO (1)	WO2021105889A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN102655921B (en) *	2009-12-15	2015-05-20	塞特克技术公司	Method and composition for removing impurities from impurity-laden organic salts

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20090169447A1 (en) *	2007-12-28	2009-07-02	Matthew Taylor	Methods and compositions for the removal of impurities and water from the bayer process
US8435411B2 (en) *	2009-12-15	2013-05-07	Cytec Technology Corp.	Methods and compositions for the removal of impurities from an impurity-loaded organic salt
US20130228524A1 (en) *	2011-09-05	2013-09-05	Cytec Technology Corp.	Processes for Recovering Organic Solvent Extractant from Solid-Stabilized Emulsions Formed in Hydrometallurgical Solvent Extraction Circuits
US10030286B1 (en) *	2013-11-13	2018-07-24	Ii-Vi Incorporated	Method of direct solvent extraction of rare earth metals from an aqueous acid-leached ore slurry

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4119698A (en) *	1976-11-26	1978-10-10	Kernforschungsanlage Julich, Gesellschaft Mit Beschrankter Haftung	Reclamation treatment of red mud
US4578255A (en) *	1984-12-27	1986-03-25	Kaiser Aluminum Chemical Corporation	Purification of Bayer process liquors
CN102994757A (en) *	2012-11-27	2013-03-27	淄博旭德环境工程技术有限公司	Method for preparing ferro-silico-aluminum alloy by using Bayer process red mud
EP3060690B1 (en) *	2013-10-21	2020-10-14	Peloton Resources Pty Ltd.	Deriving high value products from waste red mud

2020
- 2020-11-25 EP EP20894864.6A patent/EP4065738A4/en active Pending
- 2020-11-25 WO PCT/IB2020/061113 patent/WO2021105889A1/en not_active Ceased
- 2020-11-25 AU AU2020393071A patent/AU2020393071A1/en active Pending
- 2020-11-25 BR BR112022010081A patent/BR112022010081A2/en unknown
- 2020-11-25 CN CN202080082187.8A patent/CN114787397B/en active Active

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20090169447A1 (en) *	2007-12-28	2009-07-02	Matthew Taylor	Methods and compositions for the removal of impurities and water from the bayer process
US8435411B2 (en) *	2009-12-15	2013-05-07	Cytec Technology Corp.	Methods and compositions for the removal of impurities from an impurity-loaded organic salt
US20130228524A1 (en) *	2011-09-05	2013-09-05	Cytec Technology Corp.	Processes for Recovering Organic Solvent Extractant from Solid-Stabilized Emulsions Formed in Hydrometallurgical Solvent Extraction Circuits
US10030286B1 (en) *	2013-11-13	2018-07-24	Ii-Vi Incorporated	Method of direct solvent extraction of rare earth metals from an aqueous acid-leached ore slurry

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "FRP Material Selection Guide - An Engineer's Guide to FRP Technology", REICHHOLD BROCHURE, 1 January 2009 (2009-01-01), pages 1 - 77, XP055771171, Retrieved from the Internet <URL:http://www.reichhold.com/corrosion/docs/Materials%20Selection%20Guide%20Final%20Version.pdf> [retrieved on 20210202] *
See also references of WO2021105889A1 *

Also Published As

Publication number	Publication date
WO2021105889A1 (en)	2021-06-03
CN114787397B (en)	2025-09-12
BR112022010081A2 (en)	2022-08-30
AU2020393071A1 (en)	2022-06-23
EP4065738A1 (en)	2022-10-05
CN114787397A (en)	2022-07-22

Publication	Publication Date	Title
SG11202104426WA (en)	2021-05-28	Method and apparatus for processing video stream
EP4066385A4 (en)	2023-01-25	Method and apparatus for video coding
EP3871411A4 (en)	2022-01-26	Method and apparatus for video coding
EP3942823A4 (en)	2023-04-05	Method and apparatus for video coding
EP3759912A4 (en)	2021-12-08	Method and apparatus for video coding
CA3241768A1 (en)	2021-03-04	Device and method for coding video on basis of filtering
EP3908002A4 (en)	2022-04-20	Video processing method and apparatus
EP3957066A4 (en)	2022-06-29	Method and apparatus for video coding
EP3769532A4 (en)	2021-01-27	Method and apparatus for video coding
EP3949410A4 (en)	2023-03-29	Method and apparatus for video coding
EP3912349A4 (en)	2022-03-16	Method and apparatus for video coding
EP3769520A4 (en)	2022-07-13	Method and apparatus for video coding
EP3968586A4 (en)	2022-06-29	Packet processing method and related apparatus
EP3939305A4 (en)	2022-12-21	Methods for recovery point process for video coding and related apparatus
EP3997870A4 (en)	2023-06-14	Method and apparatus for video coding
EP3874756A4 (en)	2022-01-26	Method and apparatus for video coding
EP3939281A4 (en)	2022-05-04	Method and apparatus for video coding
SG11202007230SA (en)	2020-08-28	System and method for removing acid gas from a sour gas stream
EP4115613A4 (en)	2023-07-12	Method and apparatus for video filtering
EP3949419A4 (en)	2023-01-04	Method and apparatus of simplified affine subblock process for video coding system
EP3854084A4 (en)	2022-03-16	Method and apparatus for video coding
EP3915263A4 (en)	2022-10-12	Method and apparatus for video coding
EP3769525A4 (en)	2021-12-29	Method and apparatus for video coding
EP4082205A4 (en)	2023-06-21	Method and apparatus for video coding
EP3871413A4 (en)	2022-01-26	Method and apparatus for video coding

Legal Events

Date	Code	Title	Description
2021-06-04	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2022-09-02	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
2022-09-02	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2022-10-05	17P	Request for examination filed	Effective date: 20220602
2022-10-05	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2023-11-27	REG	Reference to a national code	Ref country code: DE Ref legal event code: R079 Free format text: PREVIOUS MAIN CLASS: C22B0003200000 Ipc: C22B0003260000
2024-01-03	A4	Supplementary search report drawn up and despatched	Effective date: 20231201
2024-01-03	RIC1	Information provided on ipc code assigned before grant	Ipc: C01F 7/473 20220101ALI20231127BHEP Ipc: C01F 7/47 20220101ALI20231127BHEP Ipc: B01D 37/04 20060101ALI20231127BHEP Ipc: B01D 37/03 20060101ALI20231127BHEP Ipc: B01D 37/02 20060101ALI20231127BHEP Ipc: B01D 11/04 20060101ALI20231127BHEP Ipc: C22B 21/00 20060101ALI20231127BHEP Ipc: C22B 3/26 20060101AFI20231127BHEP