WO1998042883A2 - Silver refining system - Google Patents

Silver refining system Download PDF

Info

Publication number
WO1998042883A2
WO1998042883A2 PCT/AT1998/000075 AT9800075W WO9842883A2 WO 1998042883 A2 WO1998042883 A2 WO 1998042883A2 AT 9800075 W AT9800075 W AT 9800075W WO 9842883 A2 WO9842883 A2 WO 9842883A2
Authority
WO
WIPO (PCT)
Prior art keywords
anode
anodes
plant according
sieve
electrolyte
Prior art date
Application number
PCT/AT1998/000075
Other languages
German (de)
French (fr)
Other versions
WO1998042883A3 (en
Inventor
Adalbert Prior
Original Assignee
Prior Engineering 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 Prior Engineering Ag filed Critical Prior Engineering Ag
Priority to AU63851/98A priority Critical patent/AU6385198A/en
Publication of WO1998042883A2 publication Critical patent/WO1998042883A2/en
Publication of WO1998042883A3 publication Critical patent/WO1998042883A3/en

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
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • 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
    • C25C7/06—Operating or servicing

Definitions

  • the invention relates to a plant for silver refining according to the Möbius process with stripping cathode plates arranged in an electrolysis tank between flat anodes with anode bags, anodes with sieve trays for receiving a bed of part-shaped raw silver and suction pipes opening below the sieve trays for suctioning off anode sludge are provided.
  • a system of the type mentioned at the outset is characterized in particular in that the anodes are provided with at least one line for flushing the raw silver bed with electrolyte, in particular in a circuit.
  • AT-A 1 751/96 shows a construction where the anodes are formed with a basket above the sieve bottom, in which the anode bag is used as a bottomless sleeve, and a tight bottom piece, in particular made of plastic, is attached to the sieve bottom is. If such an anode is equipped with a line for rinsing with electrolyte, the electrolyte in the basket area thus emerges laterally through the sleeve from the anode area.
  • Another construction for the advantageous realization of the anode rinsing is an entire plastic casing in the immersion area of the anode, which is perforated above the sieve bottom and in which area the anode bag is used as a bottomless sleeve and which forms a bottom piece below the sieve bottom.
  • extremely thin materials for example ion exchange membranes, can be used as anode bags, since they are only exposed to mechanical stress in the region of the holes in the casing.
  • the bottom piece can, regardless of whether it is part of the plastic casing or a separate component, consist of impermeable material or at least partially formed as a microporous plastic plate which is permeable to electrolyte, but not anode sludge.
  • At least one settling chamber with a funnel bottom is provided in the base piece, into which the suction pipe for the anode sludge projects.
  • the individual flush lines are advantageously supplied together via a single electrolyte return line with a circulation pump - the location from where electrolyte is returned in the Möbius cell is not critical as long as care is taken to ensure that no stripped pure silver is carried along.
  • a partial stream from the electrolyte circuit customary in the Möbius process is preferably used for anode rinsing.
  • a Möbius flat anode with electrolyte flushing is described in more detail with reference to the drawing, which shows a sectional schematic plan view of one of the large end faces of the anode, which is shown and described as in AT-A 1 751, the disclosure of which is hereby incorporated by reference is arranged as one of several anodes in a Möbius cell between two stripping cathodes.
  • a rectangular titanium frame 1 has a sieve bottom 2, on which an anode bed made of raw silver granules is not shown.
  • the frame 1 is surrounded by a box-shaped plastic sheathing 3 with a closed, tapering bottom 4, the plastic sheathing 3 having continuous openings 5 in the region of the anode fill, which are covered on the inside of the sheathing with a membrane sleeve 6 which is open at the bottom and which extends to the sieve tray 2.
  • the titanium frame 1 and the plastic casing are detachably connected at 14.
  • Two titanium tubes 7 and 8 protrude into the titanium frame 1 from above, the tube 7 being closed at the bottom and seated on the sieve plate 2, while the tube 8 extends down through the sieve plate 2 to the bottom of the casing 3.
  • the tube 7 is used to supply flushing electrolyte for the anode bed, while the tube 8 is the suction tube for anode sludge.
  • Two perforated titanium sheets 9, 10 are welded in between the tubes 7 and 8 at a distance from one another and form an electrolyte distribution chamber which is supplied with electrolyte via a longitudinal slot 11 in the tube 7.
  • the sheets 9, 10 run parallel to the tubes 7, 8 and are connected to one another at the top by a cover plate 12, so that electrolyte supplied via the tube 7 mainly emerges laterally from the sheets 9, 10 into the anode bed.
  • a bottom plate 13 is also advantageously provided.
  • the perforations 5 of the plastic casing including the membrane sleeve extend up to above the anode bed and up to above the Anode bed of bath levels in the cell, so that pumped-in rinsing electrolyte can also flow laterally out of the anode above the bath level.
  • the bottom part 1 5 of the sheathing 4 that is to say the collecting area for the anode sludge below the sieve bottom 2, can either be solid, ie impermeable, or at least in sections consist of a microporous plastic plate.

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)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

This invention concerns a system for refining silver according to the Möbius process with cathode strips which peel off arranged in an electrolysis tank between flat anodes with anode bags (4) and in which anodes with mesh bottoms (2) for retaining a bed of particulate crude silver and outlet tubes (8) opening beneath the mesh bottoms to remove anode sludge through suction are provided, characterized in that the anodes have at least one line (7) for rinsing the bed of crude silver with recirculated electrolyte in particular.

Description

Anlage zur SilberraffinationSilver refining plant
Die Erfindung betrifft eine Anlage zur Silberraffination nach dem Möbiusverfahren mit in einem Elektrolysetank zwischen Flachanoden mit Anodensäcken angeordneten Abstreifkathodenbiechen, wobei Anoden mit Siebböden zur Aufnahme einer Schüttung aus teileförmigem Rohsilber und unterhalb der Siebböden mündenden Absaugrohren zur Absaugung von Anodenschlamm vorgesehen sind.The invention relates to a plant for silver refining according to the Möbius process with stripping cathode plates arranged in an electrolysis tank between flat anodes with anode bags, anodes with sieve trays for receiving a bed of part-shaped raw silver and suction pipes opening below the sieve trays for suctioning off anode sludge are provided.
Eine derartige Anlage ist Gegenstand der AT-A 1 751/96 der Anmelderin.Such a system is the subject of AT-A 1 751/96 by the applicant.
Um jegliche Passivierung in der Anodenschüttung zu vermeiden, wird erfindungsgemäß vorgeschlagen, den Elektrolyten in der Anodenschüttung zu bewegen. Erfindungsgemäß ist eine Anlage des eingangs genannten Typs vor allem dadurch gekennzeichnet, daß die Anoden mit zumindest einer Leitung zum Durchspülen der Rohsilberschüttung mit, insbesondere im Kreislauf geführten, Elektrolyt versehen sind.In order to avoid any passivation in the anode bed, it is proposed according to the invention to move the electrolyte in the anode bed. According to the invention, a system of the type mentioned at the outset is characterized in particular in that the anodes are provided with at least one line for flushing the raw silver bed with electrolyte, in particular in a circuit.
Bevorzugt wird dabei, daß die Leitungen zum Zuführen von Spülelektrolyt von oben vorgesehen sind.It is preferred that the lines for supplying flushing electrolyte are provided from above.
Für Bewegung im Elektrolyt muß selbstverständlich nur im Bereich der Anodenschüttung, also oberhalb der Siebböden, gesorgt werden, nicht aber im Absetzbereich für den Anodenschlamm. In diesem Zusammenhang zeigt die AT-A 1 751/96 eine Konstruktion, wo die Anoden mit einem Korb oberhalb des Siebbodens ausgebildet sind, in dem der Anodensack als bodenlose Hülse eingesetzt ist, und an den Siebboden ein dichtes Bodenstück, insbesondere aus Kunststoff, angesetzt ist. Wird eine derartige Anode mit einer Leitung zur Spülung mit Elektrolyt ausgestattet, tritt somit der Elektrolyt im Korbbereich seitlich durch die Hülse aus dem Anodenbereich aus. Eine weitere Konstruktion zur vorteilhaften Verwirklichung der Anodenspülung ist eine ganze Kunststoffummantelung im Eintauchbereich der Anode, die oberhalb des Siebbodens gelocht und wobei in diesem Bereich der Anodensack als bodenlose Hülse eingesetzt ist, und die unterhalb des Siebbodens ein Bodenstück bildet. In diesem Fall können als Anodensäcke extrem dünne Materialien, beispielsweise lonentauschermembranen, eingesetzt werden, da sie nur im Bereich der Löcher der Ummantelung mechanischer Belastung ausgesetzt sind.Of course, movement in the electrolyte must only be provided in the area of the anode bed, ie above the sieve trays, but not in the settling area for the anode sludge. In this context, AT-A 1 751/96 shows a construction where the anodes are formed with a basket above the sieve bottom, in which the anode bag is used as a bottomless sleeve, and a tight bottom piece, in particular made of plastic, is attached to the sieve bottom is. If such an anode is equipped with a line for rinsing with electrolyte, the electrolyte in the basket area thus emerges laterally through the sleeve from the anode area. Another construction for the advantageous realization of the anode rinsing is an entire plastic casing in the immersion area of the anode, which is perforated above the sieve bottom and in which area the anode bag is used as a bottomless sleeve and which forms a bottom piece below the sieve bottom. In this case, extremely thin materials, for example ion exchange membranes, can be used as anode bags, since they are only exposed to mechanical stress in the region of the holes in the casing.
Das Bodenstück kann, unabhängig davon, ob es Teil der Kunststoffummantelung oder ein eigener Bauteil ist, aus undurchlässigem Material bestehen oder zumindest abschnittsweise als mikroporöse Kunststoff platte ausgebildet sein, die zwar elektrolyt-, jedoch nicht anodenschlammdurchlässig ist.The bottom piece can, regardless of whether it is part of the plastic casing or a separate component, consist of impermeable material or at least partially formed as a microporous plastic plate which is permeable to electrolyte, but not anode sludge.
In üblicher Weise ist im Bodenstück jeweils mindestens ein Absetzraum mit Trichterboden vorgesehen, in den das Absaugrohr für den Anodenschlamm hineinragt.In the usual way, at least one settling chamber with a funnel bottom is provided in the base piece, into which the suction pipe for the anode sludge projects.
Vorteilhaft werden die einzelnen Spülleitungen über eine einzige Elektrolytrückführleitung mit Umwälzpumpe gemeinsam versorgt - der Ort, von wo aus in der Möbiuszelle Elektrolyt rückgeführt wird, ist nicht kritisch, solange dafür Sorge getragen wird, daß dabei kein abgestreiftes Reinsilber mitgeführt wird. Bevorzugt wird einfach ein Teilstrom aus dem beim Möbiusverfahren üblichen Elektrolytkreislauf zur Anodenspülung verwendet.The individual flush lines are advantageously supplied together via a single electrolyte return line with a circulation pump - the location from where electrolyte is returned in the Möbius cell is not critical as long as care is taken to ensure that no stripped pure silver is carried along. A partial stream from the electrolyte circuit customary in the Möbius process is preferably used for anode rinsing.
In folgendem wird ein Beispiel einer Möbiusflachanode mit Elektrolytspülung anhand der Zeichnung näher beschrieben, die eine geschnittene schematische Draufsicht auf eine der großen Stirnflächen der Anode zeigt, die wie in der AT-A 1 751 , deren Offenbarung hiemit durch Verweis eingeschlossen ist, gezeigt und beschrieben als eine von mehreren Anoden in einer Möbiuszelle zwischen zwei Abstreifkathoden angeordnet ist. Ein rechteckiger Titanrahmen 1 weist einen Siebboden 2 auf, auf dem eine nicht dargestellte Anodenschüttung aus Rohsilbergranalien aufgebracht wird. Der Rahmen 1 ist von einer kastenförmigen Kunststoffummantelung 3 mit geschlossenem, sich nach unten verjüngenden, Bboden 4 umgeben, wobei im Bereich der Anodenschüttung die Kunststoffummantelung 3 durchgehende Öffnungen 5 aufweist, die an der Innenseite der Ummantelung mit einer unten offenen Membranhülse 6 abgedeckt sind, die bis zum Siebboden 2 reicht.In the following, an example of a Möbius flat anode with electrolyte flushing is described in more detail with reference to the drawing, which shows a sectional schematic plan view of one of the large end faces of the anode, which is shown and described as in AT-A 1 751, the disclosure of which is hereby incorporated by reference is arranged as one of several anodes in a Möbius cell between two stripping cathodes. A rectangular titanium frame 1 has a sieve bottom 2, on which an anode bed made of raw silver granules is not shown. The frame 1 is surrounded by a box-shaped plastic sheathing 3 with a closed, tapering bottom 4, the plastic sheathing 3 having continuous openings 5 in the region of the anode fill, which are covered on the inside of the sheathing with a membrane sleeve 6 which is open at the bottom and which extends to the sieve tray 2.
Oberhalb der Anodenschüttung und oberhalb des Elektrolytpegels sind Titanrahmen 1 und Kunststoffummantelung bei 14 miteinander lösbar verbunden.Above the anode bed and above the electrolyte level, the titanium frame 1 and the plastic casing are detachably connected at 14.
In den Titanrahmen 1 ragen von oben zwei Titanrohre 7 und 8 hinein, von denen das Rohr 7 unten geschlossen ist und am Siebboden 2 aufsitzt, während das Rohr 8 durch den Siebboden 2 nach unten bis zum Boden der Ummantelung 3 reicht. Das Rohr 7 dient zur Zuführung von Spülelektrolyt zur Anodenschüttung, während das Rohr 8 das Absaugrohr für Anodenschlamm ist.Two titanium tubes 7 and 8 protrude into the titanium frame 1 from above, the tube 7 being closed at the bottom and seated on the sieve plate 2, while the tube 8 extends down through the sieve plate 2 to the bottom of the casing 3. The tube 7 is used to supply flushing electrolyte for the anode bed, while the tube 8 is the suction tube for anode sludge.
Zwischen den Rohren 7 und 8 sind im Abstand voneinander zwei gelochte Titanbleche 9,10 eingeschweißt und bilden eine Elektrolytverteilkammer, die über einen Längsschlitz 1 1 im Rohr 7 mit Elektrolyt versorgt wird. Die Bleche 9, 10 verlaufen parallel zu den Rohren 7,8 und sind oben über eine Deckplatte 12 miteinander verbunden, sodaß über das Rohr 7 zugeführter Elektrolyt hauptsächlich seitlich aus den Blechen 9,10 in die Anodenschüttung austritt. Um Austritt durch den Siebboden 2 hindurch zu vermeiden, was eine Rückströmung von Elektrolyt von unterhalb nach oberhalb des Siebbodens zur Folge hätte, ist vorteilhaft auch eine Bodenplatte 1 3 vorgesehen.Two perforated titanium sheets 9, 10 are welded in between the tubes 7 and 8 at a distance from one another and form an electrolyte distribution chamber which is supplied with electrolyte via a longitudinal slot 11 in the tube 7. The sheets 9, 10 run parallel to the tubes 7, 8 and are connected to one another at the top by a cover plate 12, so that electrolyte supplied via the tube 7 mainly emerges laterally from the sheets 9, 10 into the anode bed. In order to avoid leakage through the sieve plate 2, which would result in a backflow of electrolyte from below to above the sieve plate, a bottom plate 13 is also advantageously provided.
Die Perforierungen 5 der Kunststoffummantelung samt Membranhülse erstrecken sich bis oberhalb der Anodenschüttung und bis oberhalb des sich oberhalb der Anodenschüttung befindlichen Badniveaus in der Zelle, sodaß zugepumpter Spülelektrolyt auch oberhalb des Badniveaus seitlich aus der Anode abfließen kann.The perforations 5 of the plastic casing including the membrane sleeve extend up to above the anode bed and up to above the Anode bed of bath levels in the cell, so that pumped-in rinsing electrolyte can also flow laterally out of the anode above the bath level.
Der Bodenteil 1 5 der Ummantelung 4, also der unterhalb des Siebbodens 2 liegende Auffangbereich für den Anodenschlamm, kann entweder massiv, also undurchlässig, sein oder zumindest abschnittsweise aus einer mikroporösen Kunststoff platte bestehen. The bottom part 1 5 of the sheathing 4, that is to say the collecting area for the anode sludge below the sieve bottom 2, can either be solid, ie impermeable, or at least in sections consist of a microporous plastic plate.

Claims

Patentansprüche: Claims:
1 . Anlage zur Silberraffination nach dem Möbiusverfahren mit in einem Elektrolysetank zwischen Flachanoden mit Anodensäcken angeordneten Abstreifkathodenbiechen, wobei Anoden mit Siebböden zur Aufnahme einer Schüttung aus teileförmigem Rohsilber und unterhalb der Siebböden mündenden Absaugrohren zur Absaugung von Anodenschlamm vorgsehen sind, dadurch gekennzeichnet, daß die Anoden mit zumindest einer Leitung zum Durchspülen der Rohsilberschüttung mit, insbesondere im Kreislauf geführten, Elektrolyt versehen sind.1 . Plant for silver refining according to the Möbius process with stripping cathode plates arranged in an electrolysis tank between flat anodes with anode bags, anodes with sieve trays for receiving a bed of partially-shaped raw silver and suction tubes opening below the sieve trays for suctioning off anode sludge, characterized in that the anodes have at least one Line for rinsing the raw silver fill with, in particular circulated, electrolyte are provided.
2. Anlage nach Anspruch 1 , dadurch gekennzeichnet, daß die Leitungen zum Zuführen von Spülelektrolyt von oben vorgesehen sind.2. Plant according to claim 1, characterized in that the lines for supplying flushing electrolyte are provided from above.
3. Anlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Anode mit einem Korb oberhalb des Siebbodens ausgebildet ist, in dem der Anodensack als bodenlose Hülse eingesetzt ist, und an den Siebboden ein Bodenstück, insbesondere aus Kunststoff, angesetzt ist.3. Plant according to claim 1 or 2, characterized in that the anode is formed with a basket above the sieve bottom, in which the anode bag is used as a bottomless sleeve, and a bottom piece, in particular made of plastic, is attached to the sieve bottom.
4. Anlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Anode mit einer Ummantelung aus Kunststoff ausgebildet ist, die oberhalb des Siebbodens gelocht und wobei in diesem Bereich der Anodensack als bodenlose Hülse eingesetzt ist, und die unterhalb des Siebbodens ein Bodenstück bildet.4. Plant according to claim 1 or 2, characterized in that the anode is formed with a sheathing made of plastic, which is perforated above the sieve bottom and in this area the anode bag is used as a bottomless sleeve, and which forms a bottom piece below the sieve bottom.
5. Anlage nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß das Bodenstück aus undurchlässigem Material besteht.5. Plant according to claim 3 or 4, characterized in that the bottom piece consists of impermeable material.
6. Anlage nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß das Bodenstück zumindest abschnittsweise als mikroporöse Kunststoff platte ausgebildet ist. 6. Plant according to claim 3 or 4, characterized in that the bottom piece is formed at least in sections as a microporous plastic plate.
7. Anlage nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß im Bodenstück jeweils mindestens ein Absetzraum mit Trichterboden vorgesehen ist, in den das Absaugrohr hineinragt.7. Plant according to one of claims 3 to 6, characterized in that in each case at least one settling space with a funnel bottom is provided in the bottom piece, into which the suction pipe protrudes.
8. Anlage nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß mindestens eine Verbindungsleitung zwischen den Anoden vorgesehen ist, über die Anodenschlamm aus beliebigen oder allen Anoden absaugbar und vorteilhaft Spülflüssigkeit unter Druck zuführbar ist. 8. Plant according to one of claims 1 to 7, characterized in that at least one connecting line is provided between the anodes, can be sucked off from the anode sludge from any or all anodes and advantageously rinsing liquid can be supplied under pressure.
PCT/AT1998/000075 1997-03-24 1998-03-23 Silver refining system WO1998042883A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU63851/98A AU6385198A (en) 1997-03-24 1998-03-23 Silver refining system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA510/97 1997-03-24
AT51097A AT405059B (en) 1997-03-24 1997-03-24 PLANT FOR SILVER REFINING

Publications (2)

Publication Number Publication Date
WO1998042883A2 true WO1998042883A2 (en) 1998-10-01
WO1998042883A3 WO1998042883A3 (en) 1999-07-01

Family

ID=3492527

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1998/000075 WO1998042883A2 (en) 1997-03-24 1998-03-23 Silver refining system

Country Status (3)

Country Link
AT (1) AT405059B (en)
AU (1) AU6385198A (en)
WO (1) WO1998042883A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000079025A1 (en) * 1999-06-17 2000-12-28 Outokumpu Oyj Arrangement for cleaning the bottom of an electrolytic tank
CN105839141A (en) * 2016-04-11 2016-08-10 郴州圳兴冶金科技有限公司 First-generation full-automatic anode mud rinsing equipment
WO2023272999A1 (en) * 2021-06-30 2023-01-05 兰州理工大学 Conformal and efficient integrated method for cleaning anode sludge

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708415A (en) * 1971-05-24 1973-01-02 W Hubbard Rapid action electrolytic cell
US4182671A (en) * 1977-05-11 1980-01-08 Chimet S.P.A. Electrolytic silver and gold refining cell

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE763225A (en) * 1970-02-20 1971-08-19 Kennecott Copper Corp Copper powder electrolytic refining - cell
CA1334745C (en) * 1989-03-28 1995-03-14 Paul Spira Continuous silver refining cell

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708415A (en) * 1971-05-24 1973-01-02 W Hubbard Rapid action electrolytic cell
US4182671A (en) * 1977-05-11 1980-01-08 Chimet S.P.A. Electrolytic silver and gold refining cell

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000079025A1 (en) * 1999-06-17 2000-12-28 Outokumpu Oyj Arrangement for cleaning the bottom of an electrolytic tank
US6673228B1 (en) 1999-06-17 2004-01-06 Outokumpu Oyj Arrangement for cleaning the bottom of an electrolytic tank
CN105839141A (en) * 2016-04-11 2016-08-10 郴州圳兴冶金科技有限公司 First-generation full-automatic anode mud rinsing equipment
CN105839141B (en) * 2016-04-11 2017-10-17 郴州圳兴冶金科技有限公司 The full-automatic earth of positive pole brushing apparatus of the first generation
WO2023272999A1 (en) * 2021-06-30 2023-01-05 兰州理工大学 Conformal and efficient integrated method for cleaning anode sludge

Also Published As

Publication number Publication date
WO1998042883A3 (en) 1999-07-01
ATA51097A (en) 1998-09-15
AU6385198A (en) 1998-10-20
AT405059B (en) 1999-05-25

Similar Documents

Publication Publication Date Title
EP0717130B1 (en) Pressure compensated electrochemical cell
DE69904702T2 (en) DEVICE FOR SOLID LIQUID SEPARATION, ESPECIALLY FOR BIOLOGICAL CLEANING OF WASTEWATER
DE69527519T2 (en) ELECTRODE CAP WITH INTERGRAL TANK COVER TO ACQUIRE ACID LEVELS
AT505700B1 (en) METHOD OF OPERATING COPPER ELECTROLYSIS CELLS
DE2445412A1 (en) ELECTROLYTIC CELL AND METHOD FOR ELECTROCHEMICAL TREATMENT OF WASTEWATER
DE4003516C2 (en) Electrode element for electrolytic purposes and its use
DE3031773C2 (en) System for electrochemical wastewater treatment
EP0792391B1 (en) Electrolytic treatment device for plate-like workpieces, in particular printed circuit boards
DE2650912A1 (en) Electrolytic regeneration of copper etching reagent - contg. chloride and cuprous ion, with control of copper concn. in reagent and current density
EP0175288B1 (en) Process for the galvanic separation of electrolyte carrying collectors from the electrolyte chambers of an electrochemical cell parcel
EP0445120A1 (en) Device for applying and/or removing coatings on workpieces.
AT405059B (en) PLANT FOR SILVER REFINING
DE2255741C3 (en) Diaphragm series electrolyzer
DE2507492C3 (en) Method and device for the electrolytic removal of metal ions from a solution
DE69002305T2 (en) Device for carrying out an electrolytic process.
EP1230442B1 (en) Device for electrolytically treating board-shaped workpieces, especially printed circuits
DE102008045260B3 (en) Apparatus for galvanizing substrate, e.g. wafer or solar cell, has component with anode support, central space and electrolyte flow adjusting operating device to give even layer thickness
DE4343077C2 (en) Electrolyser with particle bed electrode (s)
DE3340360C2 (en) Electrolysis tank
DE3546039C2 (en)
DE3625475A1 (en) Electroplating apparatus for plate-like workpieces, in particular printed circuit boards
DE69814644T2 (en) Device for producing ionized water
AT404739B (en) PLANT FOR SILVER REFINING AFTER THE MÖBIUS PROCESS
DE3936964C2 (en)
DE1592044A1 (en) Electrolytic cell

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM GW HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM GW HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
ENP Entry into the national phase

Ref country code: AT

Ref document number: 1998 9052

Date of ref document: 19981001

Kind code of ref document: A

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 19989052

Country of ref document: AT

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 1998544519

Format of ref document f/p: F

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA