EP0017188A1 - Anode pour l'électrolyse des chlorures alcalins et procédé pour la production de chlore - Google Patents

Anode pour l'électrolyse des chlorures alcalins et procédé pour la production de chlore Download PDF

Info

Publication number: EP0017188A1
Authority: EP; European Patent Office
Prior art keywords: bridge; anode; copper bolt; copper; thread
Prior art date: 1979-04-10
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

EP80101671A

Other languages

German (de)

English (en)

Other versions

EP0017188B1 (fr

Inventor

Lothar Dipl.-Ing. Sesterhenn

Milorad Tomic

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.)

Bayer AG

Original Assignee

Bayer 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.)

1979-04-10

Filing date

1980-03-28

Publication date

1980-10-15

1980-03-28 Application filed by Bayer AG filed Critical Bayer AG

1980-10-15 Publication of EP0017188A1 publication Critical patent/EP0017188A1/fr

1983-01-12 Application granted granted Critical

1983-01-12 Publication of EP0017188B1 publication Critical patent/EP0017188B1/fr

Status Expired legal-status Critical Current

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Classifications

- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
- C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous

Definitions

Titanium anodes consist of a lattice-shaped or reticular titanium anode surface, which is arranged opposite and parallel to the mercury cathode and immersed in the electrolyte, which overlays the mercury cathode. Titanium anodes also consist of cross conductors of larger cross-section which are welded to the titanium anode surface and which are in turn welded to a bridge of titanium with an even larger cross-section.
the current is usually supplied via copper bolts which are connected to the bridge in a manner that is perpendicular to the titanium structure.
a problem is the attachment of the copper bolts to the bridge of the titanium structure.
the connection between the titanium structure and the copper bolt is intended to be a good mechanical connection on the one hand, since the titanium structure is held by copper bolts and an adjustment that has been carried out over longer periods of time is to be guaranteed and on the other hand a good one to represent electrical contact.
the titanium structure should be detachable from the copper bolt without great effort and without damaging the contact surfaces, so that the titanium structure can be easily handled when the active layer of the titanium anode surface is replaced at regular intervals.
DOS 2 031 525 it is proposed, for example, to establish the electrical contact between the copper bolt and the bridge of the titanium structure via a low-melting metal alloy which is liquid under the operating conditions of the electrolysis cell.
the Mechanic connection will be there additionally guaranteed by screwing.
the difficulties encountered with this proposal lie in the fact that such low-melting alloys generally do not wet titanium at the expense of good electrical contact and, moreover, the removal of the copper bolt is made more difficult.
DOS 27 17 931 it is proposed to place a cone at the lower end of the copper bolt that fits into a hollow cone of the bridge, and to screw the bridge and copper bolt together by means of a screw that engages in a threaded hole in the copper bolt.
the object of the present invention is therefore to provide an anode for alkali metal chloride electrolysis which avoids the disadvantages mentioned.
the present invention relates to an anode for the alkali metal chloride electrolysis by the amalgam process, consisting of a lattice-shaped or reticular planar titanium anode surface, optionally current distribution rails, a bridge serving as a primary conductor rail and at least one copper bolt as a power supply, which is characterized in that the copper bolt has a thread in its lower region and is conical below the thread, the bridge has a threaded nut and a conical bore for receiving the conical region of the copper bolt, and the copper bolt and bridge are screwed together in a positive and non-positive manner.
the conical surfaces on the copper bolt and / or the bridge can be protected against corrosion by surface metallization.
surface metallization nickel or platinum layers are suitable.
the cone ratio of the cone is expediently between 1: 5 and 1:15, a cone ratio of about 1:10 is preferred.
the present invention furthermore relates to a process for the production of chlorine by electrolysis of alkali metal chloride using the anode according to the invention.

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Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Chemical Kinetics & Catalysis (AREA)
Electrochemistry (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Electrodes For Compound Or Non-Metal Manufacture (AREA)
Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Electrolytic Production Of Metals (AREA)

EP80101671A 1979-04-10 1980-03-28 Anode pour l'électrolyse des chlorures alcalins et procédé pour la production de chlore Expired EP0017188B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19792914414 DE2914414A1 (de)	1979-04-10	1979-04-10	Anode fuer die alkalichlorid-elektrolyse und verfahren zur herstellung von chlor
DE2914414		1979-04-10

Publications (2)

Publication Number	Publication Date
EP0017188A1 true EP0017188A1 (fr)	1980-10-15
EP0017188B1 EP0017188B1 (fr)	1983-01-12

Family

ID=6067933

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP80101671A Expired EP0017188B1 (fr)	1979-04-10	1980-03-28	Anode pour l'électrolyse des chlorures alcalins et procédé pour la production de chlore

Country Status (7)

Country	Link
US (1)	US4323438A (fr)
EP (1)	EP0017188B1 (fr)
CA (1)	CA1157810A (fr)
DE (2)	DE2914414A1 (fr)
IN (1)	IN153771B (fr)
NO (1)	NO153307C (fr)
PL (1)	PL123695B1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6103096A (en) *	1997-11-12	2000-08-15	International Business Machines Corporation	Apparatus and method for the electrochemical etching of a wafer
US6106687A (en) *	1998-04-28	2000-08-22	International Business Machines Corporation	Process and diffusion baffle to modulate the cross sectional distribution of flow rate and deposition rate
US6251251B1 (en)	1998-11-16	2001-06-26	International Business Machines Corporation	Anode design for semiconductor deposition
US6113759A (en) *	1998-12-18	2000-09-05	International Business Machines Corporation	Anode design for semiconductor deposition having novel electrical contact assembly
US6261426B1 (en)	1999-01-22	2001-07-17	International Business Machines Corporation	Method and apparatus for enhancing the uniformity of electrodeposition or electroetching

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE542233C (de) *	1931-02-03	1932-01-21	Conradty Fa C	In Zellen fuer waesserige Elektrolyse horizontal einzubauende Anodenplatte
US3455810A (en) *	1965-02-04	1969-07-15	Uddeholms Ab	Fastening means for an electrode in a so-called horizontal electrolytic cell
GB1168298A (en) *	1965-11-08	1969-10-22	Uhde Gmbh Friedrich	Electrolytic Cell
AT278047B (de) *	1966-12-28	1970-01-26	Great Lakes Carbon Corp	Elektrische Verbindung zwischen einem elektrisch leitfähigen Element und einem Kohlekörper und Verfahren zur Herstellung einer solchen Verbindung
DE2046479B2 (de) *	1969-09-22	1973-03-08	Fa Progil, Paris	Anodenanordnung in einer elektrolysezelle
DE2445570A1 (de) *	1973-10-19	1975-04-30	Solvay	Elektrolysezelle mit vertikalen elektroden

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1267993A (en) *	1969-04-28	1972-03-22	Marston Excelsior Ltd	Improvements in or relating to electrodes
GB1304518A (fr) *	1969-06-27	1973-01-24
US3912616A (en) *	1973-05-31	1975-10-14	Olin Corp	Metal anode assembly
DE2426674A1 (de) *	1974-06-01	1975-12-04	Bayer Ag	Anoden fuer elektrolysezellen
DE2717931C3 (de) *	1977-04-22	1980-08-07	Heraeus-Elektroden Gmbh, 6450 Hanau	Elektroden mit austauschbaren aktiven Flächen für Elektrolysezellen, vorzugsweise Chloralkalielektrolysezellen
US4121994A (en) *	1977-11-17	1978-10-24	Hooker Chemicals & Plastics Corp.	Anode support means for an electrolytic cell

1979
- 1979-04-10 DE DE19792914414 patent/DE2914414A1/de not_active Withdrawn
1980
- 1980-03-05 IN IN156/DEL/80A patent/IN153771B/en unknown
- 1980-03-21 US US06/132,564 patent/US4323438A/en not_active Expired - Lifetime
- 1980-03-27 NO NO800890A patent/NO153307C/no unknown
- 1980-03-28 DE DE8080101671T patent/DE3061573D1/de not_active Expired
- 1980-03-28 EP EP80101671A patent/EP0017188B1/fr not_active Expired
- 1980-04-08 PL PL1980223327A patent/PL123695B1/pl unknown
- 1980-04-08 CA CA000349318A patent/CA1157810A/fr not_active Expired

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE542233C (de) *	1931-02-03	1932-01-21	Conradty Fa C	In Zellen fuer waesserige Elektrolyse horizontal einzubauende Anodenplatte
US3455810A (en) *	1965-02-04	1969-07-15	Uddeholms Ab	Fastening means for an electrode in a so-called horizontal electrolytic cell
GB1168298A (en) *	1965-11-08	1969-10-22	Uhde Gmbh Friedrich	Electrolytic Cell
AT278047B (de) *	1966-12-28	1970-01-26	Great Lakes Carbon Corp	Elektrische Verbindung zwischen einem elektrisch leitfähigen Element und einem Kohlekörper und Verfahren zur Herstellung einer solchen Verbindung
DE2046479B2 (de) *	1969-09-22	1973-03-08	Fa Progil, Paris	Anodenanordnung in einer elektrolysezelle
DE2445570A1 (de) *	1973-10-19	1975-04-30	Solvay	Elektrolysezelle mit vertikalen elektroden

Also Published As

Publication number	Publication date
NO153307B (no)	1985-11-11
NO153307C (no)	1986-02-19
PL223327A1 (fr)	1981-01-16
NO800890L (no)	1980-10-13
US4323438A (en)	1982-04-06
CA1157810A (fr)	1983-11-29
DE2914414A1 (de)	1980-10-23
PL123695B1 (en)	1982-11-30
DE3061573D1 (en)	1983-02-17
IN153771B (fr)	1984-08-18
EP0017188B1 (fr)	1983-01-12

Legal Events

Date	Code	Title	Description
1980-08-19	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
1980-10-15	17P	Request for examination filed
1980-10-15	AK	Designated contracting states	Designated state(s): BE DE FR GB IT NL SE
1982-09-06	ITF	It: translation for a ep patent filed	Owner name: ING. C. GREGORJ S.P.A.
1982-11-12	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1983-01-12	AK	Designated contracting states	Designated state(s): BE DE FR GB IT NL SE
1983-02-11	ET	Fr: translation filed
1983-02-17	REF	Corresponds to:	Ref document number: 3061573 Country of ref document: DE Date of ref document: 19830217
1989-02-22	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 19890222 Year of fee payment: 10
1989-02-24	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19890224 Year of fee payment: 10
1989-02-28	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19890228 Year of fee payment: 10
1989-03-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 19890330 Year of fee payment: 10
1989-03-31	ITTA	It: last paid annual fee
1989-03-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19890331 Year of fee payment: 10 Ref country code: GB Payment date: 19890331 Year of fee payment: 10
1990-03-28	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19900328
1990-03-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19900329
1990-03-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Effective date: 19900331
1990-09-30	BERE	Be: lapsed	Owner name: BAYER A.G. Effective date: 19900331
1990-10-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19901001
1990-11-16	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1990-11-28	GBPC	Gb: european patent ceased through non-payment of renewal fee
1990-11-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19901130
1990-12-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19901201
1991-01-25	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: 80101671.8 Effective date: 19910109
2016-09-14	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
2016-09-14	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

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