EP0073735A3 - Electrolytic pot for the production of aluminium by electrolysis in the dry way, and method of inserting the iron bars - Google Patents

Electrolytic pot for the production of aluminium by electrolysis in the dry way, and method of inserting the iron bars Download PDF

Info

Publication number: EP0073735A3
Authority: EP; European Patent Office
Prior art keywords: electrolysis; aluminium; production; iron bars; dry way
Prior art date: 1981-08-31
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

EP82810344A

Other languages

German (de)

Other versions

EP0073735A2 (en

EP0073735B1 (en

Inventor

Raoul Jemec

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.)

Alcan Holdings Switzerland AG

Original Assignee

Schweizerische Aluminium AG

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.)

1981-08-31

Filing date

1982-08-18

Publication date

1983-04-20

1982-08-18 Application filed by Schweizerische Aluminium AG filed Critical Schweizerische Aluminium AG

1982-08-18 Priority to AT82810344T priority Critical patent/ATE16202T1/en

1983-03-09 Publication of EP0073735A2 publication Critical patent/EP0073735A2/en

1983-04-20 Publication of EP0073735A3 publication Critical patent/EP0073735A3/en

1985-10-23 Application granted granted Critical

1985-10-23 Publication of EP0073735B1 publication Critical patent/EP0073735B1/en

Status Expired legal-status Critical Current

Links

Classifications

- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Chemical Kinetics & Catalysis (AREA)
Electrochemistry (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Electrolytic Production Of Metals (AREA)

EP82810344A 1981-08-31 1982-08-18 Electrolytic pot for the production of aluminium by electrolysis in the dry way, and method of inserting the iron bars Expired EP0073735B1 (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT82810344T ATE16202T1 (en)	1981-08-31	1982-08-18	ELECTROLYSIS TANK FOR THE PRODUCTION OF ALUMINUM BY MEANS OF MOLTEN FLOW ELECTROLYSIS AND METHOD OF INSERTING THE IRON BAR.

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
CH5567/81A CH657383A5 (en)	1981-08-31	1981-08-31	ELECTROLYSIS PAN FOR PRODUCING ALUMINUM BY MELTFLOW ELECTROLYSIS AND METHOD FOR INSERTING THE IRON BAR.
CH5567/81		1981-08-31
DE3135083A DE3135083C1 (en)	1981-08-31	1981-09-04	Electrolytic pot for producing aluminium by means of molten-salt electrolysis and method for employing the iron bars

Publications (3)

Publication Number	Publication Date
EP0073735A2 EP0073735A2 (en)	1983-03-09
EP0073735A3 true EP0073735A3 (en)	1983-04-20
EP0073735B1 EP0073735B1 (en)	1985-10-23

Family

ID=25697998

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP82810344A Expired EP0073735B1 (en)	1981-08-31	1982-08-18	Electrolytic pot for the production of aluminium by electrolysis in the dry way, and method of inserting the iron bars

Country Status (7)

Country	Link
EP (1)	EP0073735B1 (en)
JP (1)	JPS5845390A (en)
AU (1)	AU557296B2 (en)
CA (1)	CA1190517A (en)
CH (1)	CH657383A5 (en)
DE (1)	DE3135083C1 (en)
ZA (1)	ZA826026B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NO157462C (en) *	1985-10-24	1988-03-23	Hydro Aluminium As	LAMINATED CARBON CATHOD FOR CELLS-MELT-ELECTROLYTIC ALUMINUM PREPARATION.
GB2542150A (en) *	2015-09-09	2017-03-15	Dubai Aluminium Pjsc	Cathode assembly for electrolytic cell suitable for the Hall-Héroult process
DE102016210693A1 (en) *	2016-06-15	2017-12-21	Sgl Cfl Ce Gmbh	Cathode block having a novel groove geometry

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2124516A1 (en) *	1971-02-04	1972-09-22	Alusuisse
US3851377A (en) *	1973-03-27	1974-12-03	D Dumas	Sealing of metal bars in carbonized blocks
USB430385I5 (en) *	1974-01-03	1975-01-28
FR2318244A1 (en) *	1975-07-17	1977-02-11	Savoie Electrodes Refactaires	PROCESS FOR JOINING METAL BARS WITH CARBON BLOCKS
US4076610A (en) *	1975-07-10	1978-02-28	Elettrocarbonium S.P.A.	Cathode in cells for producing aluminium by electrolysis of smelted salts thereof

1981
- 1981-08-31 CH CH5567/81A patent/CH657383A5/en not_active IP Right Cessation
- 1981-09-04 DE DE3135083A patent/DE3135083C1/en not_active Expired
1982
- 1982-08-18 EP EP82810344A patent/EP0073735B1/en not_active Expired
- 1982-08-19 ZA ZA826026A patent/ZA826026B/en unknown
- 1982-08-20 AU AU87480/82A patent/AU557296B2/en not_active Ceased
- 1982-08-30 CA CA000410425A patent/CA1190517A/en not_active Expired
- 1982-08-31 JP JP57151652A patent/JPS5845390A/en active Pending

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2124516A1 (en) *	1971-02-04	1972-09-22	Alusuisse
US3851377A (en) *	1973-03-27	1974-12-03	D Dumas	Sealing of metal bars in carbonized blocks
USB430385I5 (en) *	1974-01-03	1975-01-28
US4076610A (en) *	1975-07-10	1978-02-28	Elettrocarbonium S.P.A.	Cathode in cells for producing aluminium by electrolysis of smelted salts thereof
FR2318244A1 (en) *	1975-07-17	1977-02-11	Savoie Electrodes Refactaires	PROCESS FOR JOINING METAL BARS WITH CARBON BLOCKS

Also Published As

Publication number	Publication date
JPS5845390A (en)	1983-03-16
DE3135083C1 (en)	1983-03-10
AU8748082A (en)	1983-03-10
CH657383A5 (en)	1986-08-29
EP0073735A2 (en)	1983-03-09
CA1190517A (en)	1985-07-16
EP0073735B1 (en)	1985-10-23
AU557296B2 (en)	1986-12-18
ZA826026B (en)	1983-07-27

Legal Events

Date	Code	Title	Description
1983-01-08	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
1983-02-14	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1983-03-09	AK	Designated contracting states	Designated state(s): AT CH DE FR GB IT LI NL SE
1983-04-20	AK	Designated contracting states	Designated state(s): AT CH DE FR GB IT LI NL SE
1983-07-27	17P	Request for examination filed	Effective date: 19830511
1985-03-19	ITF	It: translation for a ep patent filed	Owner name: DE DOMINICIS & MAYER S.R.L.
1985-05-29	RBV	Designated contracting states (corrected)	Designated state(s): AT CH FR GB IT LI NL SE
1985-08-24	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1985-10-23	AK	Designated contracting states	Designated state(s): AT CH FR GB IT LI NL SE
1985-10-23	REF	Corresponds to:	Ref document number: 16202 Country of ref document: AT Date of ref document: 19851115 Kind code of ref document: T
1986-01-03	ET	Fr: translation filed
1986-08-21	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1986-08-21	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1986-10-08	26N	No opposition filed
1987-08-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19870831 Year of fee payment: 6
1988-08-18	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 NON-PAYMENT OF DUE FEES Effective date: 19880818
1988-08-19	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19880819
1988-08-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LI Effective date: 19880831 Ref country code: CH Effective date: 19880831
1989-03-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19890301
1989-04-17	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1989-04-28	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
1989-05-10	GBPC	Gb: european patent ceased through non-payment of renewal fee
1991-08-12	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 19910812 Year of fee payment: 10
1991-08-31	ITTA	It: last paid annual fee
1991-09-20	REG	Reference to a national code	Ref country code: FR Ref legal event code: TP
1992-08-18	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: AT Effective date: 19920818
1992-08-28	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19920828 Year of fee payment: 11
1994-04-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19940429
1994-06-24	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
1995-01-31	EUG	Se: european patent has lapsed	Ref document number: 82810344.0 Effective date: 19890510

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