EP0252172B1 - Elektrolyseverfahren - Google Patents

Elektrolyseverfahren Download PDF

Info

Publication number
EP0252172B1
EP0252172B1 EP86109265A EP86109265A EP0252172B1 EP 0252172 B1 EP0252172 B1 EP 0252172B1 EP 86109265 A EP86109265 A EP 86109265A EP 86109265 A EP86109265 A EP 86109265A EP 0252172 B1 EP0252172 B1 EP 0252172B1
Authority
EP
European Patent Office
Prior art keywords
cell
process according
electrolyte
material transport
transport coefficient
Prior art date
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.)
Expired
Application number
EP86109265A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0252172A1 (de
Inventor
Dieter Bruun
Wolfgang Dietz
Klaus-Jürgen Dr. Müller
Conrad Hans Hendrik Reynvaan
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.)
Enviro-Cell Umwelttechnik Te Oberursel Bonds GmbH
Original Assignee
Deutsche Carbone 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.)
Filing date
Publication date
Application filed by Deutsche Carbone AG filed Critical Deutsche Carbone AG
Priority to AT86109265T priority Critical patent/ATE40720T1/de
Priority to DE8686109265T priority patent/DE3662060D1/de
Priority to EP86109265A priority patent/EP0252172B1/de
Priority to DE8619501U priority patent/DE8619501U1/de
Priority to JP62021910A priority patent/JPS6314884A/ja
Priority to US07/020,357 priority patent/US4806224A/en
Priority to PT85218A priority patent/PT85218B/pt
Priority to ES8701977A priority patent/ES2007633A6/es
Publication of EP0252172A1 publication Critical patent/EP0252172A1/de
Application granted granted Critical
Publication of EP0252172B1 publication Critical patent/EP0252172B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells

Definitions

  • the invention relates to an electrolysis process, wherein an electrolyte is passed through an electrolysis cell and the mass transfer coefficient is increased by introducing mechanical energy.
  • electrochemical cells For electrochemical reactions, e.g. To achieve in aqueous solutions, the most varied versions of electrochemical cells are used, e.g. Cells with a fixed bed made of graphite granules, metal wool or metal foam, or stacks of expanded metals. Plate cells are generally used at higher concentrations. It is also known that the mode of action of a cell, especially a plate cell, can be improved by increasing the stream transport coefficient. This is e.g. in that the medium to be treated is circulated at high speed through the cell and the batched liquid is then carried on in batches or a small volume flow is metered into the system in front of the cell and a corresponding small volume flow is branched off after the cell.
  • the mass transfer coefficient is increased by the introduction of mechanical energy, but in the prior art the entire electrolytic cell has been exposed to mechanical vibrations or other means for increasing the mass transfer coefficient, without making a differentiation according to the electrolyte flow in the electrolysis cell .
  • the change in the electrode overvoltages can be very disruptive because this leads to an area at the cell outlet in which undesired side reactions take place at the electrode. In most cases this is on the cathode e.g. the production of hydrogen.
  • the invention is therefore based on the object of proposing an electrolysis process of the type mentioned at the outset, in which the current density at the cell outlet is appreciably increased, without the occurrence of undesirable side reactions.
  • the invention is characterized in that the increase in the mass transfer coefficient increases along the direction of the electrolyte flow.
  • the idea on which the invention is based is therefore to increase the current density at the cell outlet by increasing the mass transfer coefficient there compared to the cell outlet, for example by exposing the electrolyte to pressure waves whose intensity at the cell outlet is stronger than at the cell inlet. It is obvious that in one liquid-filled, open-topped container, the housing of which is caused to vibrate, for example by blows, the amplitude of the vibration is greater in the upper region than in the lower region, in which the side plates are held together by a base. For example, if an electrochemical cell consists of a rectangular box in which the electrodes are suspended as plates, and if this box is vibrated from the outside by vibrators, the amplitude of the vibration in the upper area of the box is greater than in the lower area. If one now places the cell inlet downwards in the box and the cell outlet upwards, the stream transport coefficient along the direction of the electrolyte flow can be influenced in this way, and this essentially increases. The gas bubbles at the cell outlet can then be reduced or avoided.
  • FIG. 1 shows a vessel 1 of an electrolysis cell, in which an electrolyte 2 is located.
  • An anode 3, which is surrounded by a diaphragm 4, and several cathodes 5 are immersed in the electrolyte.
  • the electrolyte is continuously introduced into the vessel 1 via a side inlet 8 in the direction of arrow 9. It leaves the vessel via an overflow at the upper edge of the vessel or via holes or the like provided there.
  • a distributor tube not shown and laid over the bottom of the vessel, ensures a uniform distribution of the electrolyte, the direction of flow of which is indicated in the cell by arrows 10 .
  • Fig. 1 also shows that the vibrator 6 Schwin conditions in the direction of arrow 7, which are essentially perpendicular to the plane of the plates 3, 5.
  • FIG. 2 shows a diagram as a further explanation, the direction of the electrolyte flow 10 being indicated as the abscissa x.
  • the ordinates y are the amplitudes of the mechanical vibrations with which the electrolysis cell is subjected. It also follows from this that a smaller amplitude acts on the electrolyte at the inlet 16 of the electrolytic cell than at the outlet 17. This is shown by the curve 18.

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 Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrolytic Production Of Metals (AREA)
EP86109265A 1986-07-07 1986-07-07 Elektrolyseverfahren Expired EP0252172B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AT86109265T ATE40720T1 (de) 1986-07-07 1986-07-07 Elektrolyseverfahren.
DE8686109265T DE3662060D1 (en) 1986-07-07 1986-07-07 Electrolysis process
EP86109265A EP0252172B1 (de) 1986-07-07 1986-07-07 Elektrolyseverfahren
DE8619501U DE8619501U1 (de) 1986-07-07 1986-07-19 Elektrolysezelle
JP62021910A JPS6314884A (ja) 1986-07-07 1987-02-03 電気分解法
US07/020,357 US4806224A (en) 1986-07-07 1987-03-02 Electrolytic process
PT85218A PT85218B (pt) 1986-07-07 1987-06-30 Processo de electrolise
ES8701977A ES2007633A6 (es) 1986-07-07 1987-07-06 Procedimiento de electrolisis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86109265A EP0252172B1 (de) 1986-07-07 1986-07-07 Elektrolyseverfahren

Publications (2)

Publication Number Publication Date
EP0252172A1 EP0252172A1 (de) 1988-01-13
EP0252172B1 true EP0252172B1 (de) 1989-02-08

Family

ID=8195250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109265A Expired EP0252172B1 (de) 1986-07-07 1986-07-07 Elektrolyseverfahren

Country Status (7)

Country Link
US (1) US4806224A (es)
EP (1) EP0252172B1 (es)
JP (1) JPS6314884A (es)
AT (1) ATE40720T1 (es)
DE (2) DE3662060D1 (es)
ES (1) ES2007633A6 (es)
PT (1) PT85218B (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2681079B1 (fr) * 1991-09-06 1994-09-09 Kodak Pathe Dispositif et procede d'electrolyse a electrode poreuse et agitee.
US5312532A (en) * 1993-01-15 1994-05-17 International Business Machines Corporation Multi-compartment eletroplating system
US5310486A (en) * 1993-05-25 1994-05-10 Harrison Western Environmental Services, Inc. Multi-stage water treatment system and method for operating the same
US5419823A (en) * 1993-11-09 1995-05-30 Hardwood Line Manufacturing Co. Electroplating device and process
US6454918B1 (en) * 1999-03-23 2002-09-24 Electroplating Engineers Of Japan Limited Cup type plating apparatus
AU2002332243A1 (en) * 2001-12-03 2003-06-17 Japan Techno Co., Ltd. Hydrogen-oxygen gas generator and hydrogen-oxygen gas generating method using the generator
WO2006116533A2 (en) * 2005-04-27 2006-11-02 Hw Process Technologies, Inc. Treating produced waters
JP4732833B2 (ja) * 2005-08-22 2011-07-27 樫山工業株式会社 スクリューロータおよび真空ポンプ
US7365258B1 (en) 2006-08-02 2008-04-29 Drum Workshop, Inc. Sound box with external and internal impact surfaces
WO2008036816A2 (en) * 2006-09-20 2008-03-27 Hw Advanced Technologies, Inc. Multivalent iron ion separation in metal recovery circuits
US20080128354A1 (en) * 2006-11-30 2008-06-05 Hw Advanced Technologies, Inc. Method for washing filtration membranes

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744860A (en) * 1951-11-13 1956-05-08 Robert H Rines Electroplating method
US3351539A (en) * 1965-04-06 1967-11-07 Branson Instr Sonic agitating method and apparatus
DE1263768B (de) * 1965-07-09 1968-03-21 Basf Ag Vorrichtung zur Durchfuehrung elektrochemischer Reaktionen organischer Verbindungen mit stroemendem Elektrolyten
US3699014A (en) * 1970-12-29 1972-10-17 Norton Co Vibratory process
BG22251A1 (en) * 1974-10-04 1979-12-12 Petrov Method and installation for non-ferros elektrolysis
US4049512A (en) * 1975-10-31 1977-09-20 Tolle Jr Albert E Cathode structure for electrolytic apparatus employing impellers
US4125447A (en) * 1978-03-24 1978-11-14 Bachert Karl R Means for plating the inner surface of tubes
GB2078782A (en) * 1980-06-20 1982-01-13 Pullen Peter Agitating Photographic Fix Solutions in Electrolytic Recovery of Silver Therefrom
EP0171647A1 (de) * 1984-07-25 1986-02-19 Deutsche Carbone AG Verfahren zum elektrolytischen Abscheiden von Metallen aus einem Elektrolysebad
US4619749A (en) * 1985-03-25 1986-10-28 Nusbaum Ronald C System for extracting silver from liquid solutions
US4675254A (en) * 1986-02-14 1987-06-23 Gould Inc. Electrochemical cell and method

Also Published As

Publication number Publication date
DE8619501U1 (de) 1986-11-06
US4806224A (en) 1989-02-21
PT85218B (pt) 1993-07-30
ES2007633A6 (es) 1989-07-01
DE3662060D1 (en) 1989-03-16
JPS6314884A (ja) 1988-01-22
PT85218A (pt) 1988-07-29
EP0252172A1 (de) 1988-01-13
ATE40720T1 (de) 1989-02-15

Similar Documents

Publication Publication Date Title
DE2445412C2 (de) Elektrolytische Zelle und Verfahren zur elektrochemischen Behandlung von Abwässern
EP0252172B1 (de) Elektrolyseverfahren
EP0150018B1 (de) Verfahren zum Elektrolysieren von flüssigen Elektrolyten
DE2948579A1 (de) Elektrode und verfahren zum entfernen einer metallischen substanz aus einer loesung unter verwendung dieser elektrode
DE2326070A1 (de) Entfernung von kohlendioxid aus der luft
DE2140836C2 (de) Vorrichtung für gleichzeitige Flüssigflüssigextraktion und Elektrolyse und deren Verwendung
DE2735608A1 (de) Gas-fluessigkeitskontaktreaktionsapparatur
EP2183409B1 (de) Verfahren zum betreiben von kupfer-elektrolysezellen
DE3401636A1 (de) Elektrochemisches verfahren zur behandlung von fluessigen elektrolyten
DE2435185A1 (de) Bipolare elektrolytzelle
DE3246690A1 (de) Verfahren und vorrichtung fuer die elektrolytische behandlung von metallbahnen
DE2923818C2 (es)
DD216050A5 (de) Elektrolytzelle zur gewinnung eines metalls aus einem erz oder konzentrat
EP0324024A1 (de) Verfahren und vorrichtung zur regeneration von ionenaustauschermaterial
EP0150019B1 (de) Elektrolyseverfahren mit flüssigen Elektrolyten und porösen Elektroden
DE3017006A1 (de) Elektrolyseverfahren und elektrolysegeraet
DE69821955T2 (de) Neue dreidimensionale elektrode
DE114391C (es)
EP0390727B1 (de) Diaphragmalose Messzelle für die coulometrische Karl Fischer-Titration
DD285125B5 (de) Elektrode fuer gasentwickelnde elektrolytische Prozesse
DE3441999A1 (de) Verfahren und vorrichtung zum umwaelzen einer fluessigkeit mit hilfe von gas
DE2544640A1 (de) Verfahren zur durchfuehrung elektrochemischer reaktionen und dessen anwendung
DE172403C (es)
WO1997015702A9 (de) Vorrichtung zur chemischen oder elektrolytischen oberflächenbehandlung plattenförmiger gegenstände
DE2506822A1 (de) Pneumohydraulischer vibrator

Legal Events

Date Code Title Description
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

17P Request for examination filed

Effective date: 19870623

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19880527

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 40720

Country of ref document: AT

Date of ref document: 19890215

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3662060

Country of ref document: DE

Date of ref document: 19890316

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: SAIC BREVETTI S.R.L.

ITTA It: last paid annual fee
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19920702

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19920706

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19920707

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19920710

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19920713

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19920722

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19920731

Year of fee payment: 7

Ref country code: BE

Payment date: 19920731

Year of fee payment: 7

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: ENVIRO-CELL UMWELTTECHNIK GMBH

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732

ITPR It: changes in ownership of a european patent

Owner name: CESSIONE;ENVIRO - CELL UMWELTTECHINIK GMBH

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

EPTA Lu: last paid annual fee
NLS Nl: assignments of ep-patents

Owner name: ENVIRO-CELL UMWELTTECHNIK GMBH TE OBERURSEL, BONDS

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19930707

Ref country code: GB

Effective date: 19930707

Ref country code: AT

Effective date: 19930707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930708

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19930731

Ref country code: CH

Effective date: 19930731

Ref country code: BE

Effective date: 19930731

BERE Be: lapsed

Owner name: ENVIRO-CELL UMWELTTECHNIK G.M.B.H.

Effective date: 19930731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19940201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930707

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19940331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 86109265.8

Effective date: 19940210

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970401

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050707