EP0065854A3 - Removal of alkali metals and alkaline earth metals from molten aluminium - Google Patents

Removal of alkali metals and alkaline earth metals from molten aluminium Download PDF

Info

Publication number: EP0065854A3
Authority: EP; European Patent Office
Prior art keywords: removal; metals; alkaline earth; molten aluminium; earth metals
Prior art date: 1981-05-19
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.): Granted

Application number

EP82302448A

Other versions

EP0065854A2 (en

EP0065854B1 (en

Inventor

Ghyslain Dube

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

Alcan International Ltd Canada

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.)

1981-05-19

Filing date

1982-05-13

Publication date

1983-01-26

1982-05-13 Application filed by Alcan International Ltd Canada filed Critical Alcan International Ltd Canada

1982-12-01 Publication of EP0065854A2 publication Critical patent/EP0065854A2/en

1983-01-26 Publication of EP0065854A3 publication Critical patent/EP0065854A3/en

1985-08-28 Application granted granted Critical

1985-08-28 Publication of EP0065854B1 publication Critical patent/EP0065854B1/en

Status Expired legal-status Critical Current

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
- C22B21/06—Obtaining aluminium refining
- C22B21/062—Obtaining aluminium refining using salt or fluxing agents

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Manufacturing & Machinery (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Manufacture And Refinement Of Metals (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Battery Electrode And Active Subsutance (AREA)

EP82302448A 1981-05-19 1982-05-13 Removal of alkali metals and alkaline earth metals from molten aluminium Expired EP0065854B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US26525481A	1981-05-19	1981-05-19
US265254		1981-05-19

Publications (3)

Publication Number	Publication Date
EP0065854A2 EP0065854A2 (en)	1982-12-01
EP0065854A3 true EP0065854A3 (en)	1983-01-26
EP0065854B1 EP0065854B1 (en)	1985-08-28

Family

ID=23009685

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP82302448A Expired EP0065854B1 (en)	1981-05-19	1982-05-13	Removal of alkali metals and alkaline earth metals from molten aluminium

Country Status (9)

Country	Link
EP (1)	EP0065854B1 (en)
JP (1)	JPS6017009B2 (en)
AU (1)	AU553304B2 (en)
CA (1)	CA1188107A (en)
CH (1)	CH651320A5 (en)
DE (1)	DE3265793D1 (en)
ES (2)	ES512288A0 (en)
FR (1)	FR2506333B1 (en)
NO (1)	NO160663C (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA1188107A (en) *	1981-05-19	1985-06-04	Ghyslain Dube	Removal of alkali metals and alkaline earth metals from molten aluminium
EP0108178B1 (en) *	1982-11-09	1987-07-22	Alcan International Limited	Removal of alkali metals and alkaline earth metals from molten aluminium
DE3367112D1 (en) *	1982-11-16	1986-11-27	Alcan Int Ltd	Removal of impurities from molten aluminium
GB8622458D0 (en) *	1986-09-18	1986-10-22	Alcan Int Ltd	Alloying aluminium
US4822412A (en) *	1986-11-17	1989-04-18	The Boeing Company	Method of removing lithium from aluminum-lithium alloys
US4832740A (en) *	1987-03-30	1989-05-23	Swiss Aluminium Ltd.	Process for removing alkali and alkaline earth elements from aluminum melts
DE4029396A1 (en) *	1990-09-17	1992-03-19	Vaw Ver Aluminium Werke Ag	DEVICE FOR CLEANING NE-METAL MELTS, ESPECIALLY ALUMINUM MELTS
US5080715A (en) *	1990-11-05	1992-01-14	Alcan International Limited	Recovering clean metal and particulates from metal matrix composites
JPH059007U (en) *	1991-07-08	1993-02-05	株式会社村田製作所	Coupled line element
NO176553C (en) *	1993-04-14	1995-04-26	Norsk Hydro As	injection equipment
US6602318B2 (en) *	2001-01-22	2003-08-05	Alcan International Limited	Process and apparatus for cleaning and purifying molten aluminum
NO20210630A1 (en) *	2021-05-21	2022-11-22	Norsk Hydro As	Na removal from pot-room Al metal with under-pressure and forced convection
CN116354572B (en) *	2023-04-27	2024-05-17	上海开鸿环保科技有限公司	High-temperature melting treatment method for hazardous waste sludge based on heavy metal component recovery

Citations (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3305351A (en) *	1964-02-24	1967-02-21	Reynolds Metals Co	Treatment of aluminum with aluminum fluoride particles
US3436212A (en) *	1966-11-22	1969-04-01	Aluminum Co Of America	Flux for treating aluminum
US3459536A (en) *	1964-11-06	1969-08-05	Interlake Steel Corp	Method for mixing molten metal
US3528801A (en) *	1966-08-24	1970-09-15	Reynolds Metals Co	Method of treating aluminous metal with carbon and aluminum fluoride
US3620716A (en) *	1969-05-27	1971-11-16	Aluminum Co Of America	Magnesium removal from aluminum alloy scrap
US3767382A (en) *	1971-11-04	1973-10-23	Aluminum Co Of America	Treatment of molten aluminum with an impeller
GB1367069A (en) *	1970-10-22	1974-09-18	British Aluminium Co Ltd	Removal of non-metallic constituents from liquid metal
US3849119A (en) *	1971-11-04	1974-11-19	Aluminum Co Of America	Treatment of molten aluminum with an impeller
US3871872A (en) *	1973-05-30	1975-03-18	Union Carbide Corp	Method for promoting metallurgical reactions in molten metal
US3902893A (en) *	1973-01-04	1975-09-02	Ostberg Jan Erik	Method for moving and stirring of heavy metallurgical melts
US4058394A (en) *	1976-02-23	1977-11-15	Kennecott Copper Corporation	Pyrometallurgical system for solid-liquid contacting
US4138246A (en) *	1976-03-26	1979-02-06	Swiss Aluminium Ltd.	Process for lowering the concentration of sodium in aluminum melts
GB2030597A (en) *	1978-08-23	1980-04-10	Alcan Res & Dev	Filtering Aluminium

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA1188107A (en) *	1981-05-19	1985-06-04	Ghyslain Dube	Removal of alkali metals and alkaline earth metals from molten aluminium

1982
- 1982-05-10 CA CA000402577A patent/CA1188107A/en not_active Expired
- 1982-05-13 DE DE8282302448T patent/DE3265793D1/en not_active Expired
- 1982-05-13 EP EP82302448A patent/EP0065854B1/en not_active Expired
- 1982-05-17 FR FR828208574A patent/FR2506333B1/en not_active Expired - Lifetime
- 1982-05-18 NO NO821659A patent/NO160663C/en not_active IP Right Cessation
- 1982-05-18 AU AU83780/82A patent/AU553304B2/en not_active Expired
- 1982-05-18 ES ES512288A patent/ES512288A0/en active Granted
- 1982-05-19 JP JP57084692A patent/JPS6017009B2/en not_active Expired
- 1982-05-19 CH CH3141/82A patent/CH651320A5/en not_active IP Right Cessation
1983
- 1983-01-26 ES ES519264A patent/ES519264A0/en active Granted

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3305351A (en) *	1964-02-24	1967-02-21	Reynolds Metals Co	Treatment of aluminum with aluminum fluoride particles
US3459536A (en) *	1964-11-06	1969-08-05	Interlake Steel Corp	Method for mixing molten metal
US3528801A (en) *	1966-08-24	1970-09-15	Reynolds Metals Co	Method of treating aluminous metal with carbon and aluminum fluoride
US3436212A (en) *	1966-11-22	1969-04-01	Aluminum Co Of America	Flux for treating aluminum
US3620716A (en) *	1969-05-27	1971-11-16	Aluminum Co Of America	Magnesium removal from aluminum alloy scrap
GB1367069A (en) *	1970-10-22	1974-09-18	British Aluminium Co Ltd	Removal of non-metallic constituents from liquid metal
US3767382A (en) *	1971-11-04	1973-10-23	Aluminum Co Of America	Treatment of molten aluminum with an impeller
US3849119A (en) *	1971-11-04	1974-11-19	Aluminum Co Of America	Treatment of molten aluminum with an impeller
US3902893A (en) *	1973-01-04	1975-09-02	Ostberg Jan Erik	Method for moving and stirring of heavy metallurgical melts
US3871872A (en) *	1973-05-30	1975-03-18	Union Carbide Corp	Method for promoting metallurgical reactions in molten metal
US4058394A (en) *	1976-02-23	1977-11-15	Kennecott Copper Corporation	Pyrometallurgical system for solid-liquid contacting
US4138246A (en) *	1976-03-26	1979-02-06	Swiss Aluminium Ltd.	Process for lowering the concentration of sodium in aluminum melts
GB2030597A (en) *	1978-08-23	1980-04-10	Alcan Res & Dev	Filtering Aluminium

Also Published As

Publication number	Publication date
CA1188107A (en)	1985-06-04
NO160663B (en)	1989-02-06
ES8400501A1 (en)	1983-10-16
NO160663C (en)	1989-05-16
EP0065854A2 (en)	1982-12-01
AU553304B2 (en)	1986-07-10
JPS57198226A (en)	1982-12-04
ES8403169A1 (en)	1984-03-01
AU8378082A (en)	1982-11-25
FR2506333A1 (en)	1982-11-26
ES519264A0 (en)	1984-03-01
NO821659L (en)	1982-11-22
ES512288A0 (en)	1983-10-16
FR2506333B1 (en)	1990-12-07
CH651320A5 (en)	1985-09-13
DE3265793D1 (en)	1985-10-03
EP0065854B1 (en)	1985-08-28
JPS6017009B2 (en)	1985-04-30

Publication	Publication Date	Title
JPS56163227A (en)	1981-12-15	Recovery of refractory metal
MY8700870A (en)	1987-12-31	Continous extrussion of metals
GB2105851B (en)	1985-06-26	Level of molten metal
DE3265793D1 (en)	1985-10-03	Removal of alkali metals and alkaline earth metals from molten aluminium
GB2118578B (en)	1986-05-14	Method of recovering metals from liquid slag
GB8303495D0 (en)	1983-03-16	Refining agent of molten metal
GB8406798D0 (en)	1984-04-18	Dissolution of metals
GB2147543B (en)	1987-02-25	Dissolution of metals
DE3474724D1 (en)	1988-11-24	Determination of alkali metals
AU566406B2 (en)	1987-10-22	Removal of ti and v from molten aluminium
AU548120B2 (en)	1985-11-21	Pouring of molten metal
DE3276823D1 (en)	1987-08-27	Removal of alkali metals and alkaline earth metals from molten aluminium
JPS57114625A (en)	1982-07-16	Removal of small amount of alkali metal or alkaline earth metal in molten aluminum or aluminum alloy
GB2200360B (en)	1990-10-17	Removal of alkali metals from polyols
GB2147544B (en)	1987-02-25	Dissolution of metals utilizing -caprolactam
GB8600734D0 (en)	1986-02-19	Casting of metals
GB8406796D0 (en)	1984-04-18	Dissolution of metals
GB8406797D0 (en)	1984-04-18	Dissolution of metals
GB2092618B (en)	1985-06-26	Recovery of precious metals from association with ceramics
GB2104812B (en)	1985-07-31	Chill-casting of ingots
GB2193666B (en)	1991-01-02	Casting of metals
JPS57175883A (en)	1982-10-28	Suction prevention of molten metal
JPS57153193A (en)	1982-09-21	Mass formation of molten slag
GB8328156D0 (en)	1983-11-23	Degasification of molten metals
GB2094683B (en)	1985-01-16	Continuous casting of metal

Legal Events

Date	Code	Title	Description
1982-10-01	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
1982-11-25	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1982-12-01	AK	Designated contracting states	Designated state(s): DE GB
1983-01-26	AK	Designated contracting states	Designated state(s): DE GB
1983-08-24	17P	Request for examination filed	Effective date: 19830611
1984-02-22	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: ALCAN INTERNATIONAL LIMITED
1984-12-12	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: ALCAN INTERNATIONAL LIMITED
1985-06-29	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1985-08-28	AK	Designated contracting states	Designated state(s): DE GB
1985-10-03	REF	Corresponds to:	Ref document number: 3265793 Country of ref document: DE Date of ref document: 19851003
1986-07-08	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1986-07-08	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1986-08-27	26N	No opposition filed
2001-04-19	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20010419 Year of fee payment: 20
2001-04-20	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20010420 Year of fee payment: 20
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2002-05-12	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20020512
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