EP0010786B1 - Anode pour la production électrolytique ou le dépôt galvanique de métaux non-ferreux - Google Patents

Anode pour la production électrolytique ou le dépôt galvanique de métaux non-ferreux Download PDF

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Publication number
EP0010786B1
EP0010786B1 EP79200508A EP79200508A EP0010786B1 EP 0010786 B1 EP0010786 B1 EP 0010786B1 EP 79200508 A EP79200508 A EP 79200508A EP 79200508 A EP79200508 A EP 79200508A EP 0010786 B1 EP0010786 B1 EP 0010786B1
Authority
EP
European Patent Office
Prior art keywords
anode
tube
gas
bars
gas outlet
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
EP79200508A
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German (de)
English (en)
Other versions
EP0010786A1 (fr
Inventor
Gerhard Dipl.-Ing. Berndt
Adalbert Bartsch
Olaf Kölln
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.)
Aurubis AG
Original Assignee
Norddeutsche Affinerie 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 Norddeutsche Affinerie AG filed Critical Norddeutsche Affinerie AG
Publication of EP0010786A1 publication Critical patent/EP0010786A1/fr
Application granted granted Critical
Publication of EP0010786B1 publication Critical patent/EP0010786B1/fr
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/10—Agitating of electrolytes; Moving of racks
    • 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
    • C25C7/02—Electrodes; Connections thereof

Definitions

  • the invention relates to an anode made of insoluble metal with a support rod for the electrolytic extraction or electrodeposition of non-ferrous metals from solutions.
  • the gas is passed through a pipe system laid on the cell bottom (GB-A-1 392 705), the gassing pipes of which can also have a porous jacket to form a veil from fine gas bubbles (US Pat. No. 3,959 112), or via gassing pipes held by support elements on the cell bottom and supplied from above by supply lines (US-A-3 928 152, DE-A-25 08 094).
  • the known gassing methods are disadvantageous insofar as complicated structural requirements have to be met and, in particular, the cleaning of the electrolysis cell, which is required from time to time, is made extremely difficult by the separate installation of the gassing elements.
  • the object of the invention is to find a concept for the electrical extraction or galvanic deposition of non-ferrous metals, in which the advantages of fumigation electrolysis are retained, but the known, in particular the aforementioned disadvantages are avoided.
  • an anode of the type mentioned at the outset is used in the fumigation electrolysis for the electrical extraction or galvanic deposition of non-ferrous metals, which is designed in accordance with the invention in such a way that the anode 1 has a width across the bottom edge with Gas outlet openings 7 provided, detachably attached tube 6 and a gas supply 9 connected to the anode and running over its long side and leading to the tube 6.
  • the gas supply with gas is supplied from a gas supply line in any manner, for example by means of a hose connection.
  • a gas supply line in any manner, for example by means of a hose connection.
  • one side of the anode support rod is provided with a bore which has a connection at the inner bore end to the gas supply running over the longitudinal side of the anode and a connector at the outer bore end for connecting a gas supply line and, in a further preferred embodiment of the invention, the connector is designed as a quick coupling. All that is then required is an elastic connecting piece between the quick coupling and the gas supply line.
  • an advantageous embodiment provides for this to be connected to the gas supply by means of a push-in sleeve.
  • a further preferred embodiment of the invention consists in that non-conductive rails encompassing the longitudinal sides are arranged on the anode, one of which fixes the gas supply to the anode.
  • the laterally extending rails can have holders for the tube and the extension of the rails perpendicular to the anode surface can be such that they serve as spacers to the adjacent cathode. Spacers in the sense meant here means that the minimum distance between the anode and cathode is avoided.
  • the thickness of the entire rail i.e. after it has been extended on both sides, is approximately 25 to 30 mm. A gap of approx. 10 to 15 mm should be maintained between the rails of two adjacent anodes for easy insertion and removal of the cathodes.
  • the position of the gas outlet bores in the horizontally running tube can be arbitrary for the gassing of the electrode spaces. A particularly effective gassing is achieved, however, if the axes of the gas outlet bores in the tube run horizontally or upwards relative to the anode surface.
  • the gas supply running over the long side of the anode consists primarily of a tube of the same material as the anode. The same applies to the push-in socket for receiving the pipe provided with gas outlet openings.
  • the gas supply is firmly connected to the anode, expediently by welding.
  • the pipe provided with gas outlet openings is expediently made of plastic, such as hard PVC. This ensures that incrustations and thus malfunctions, which can occur as a result of gas entering the crystallizable electrolyte in the region of the gas outlet openings, are avoided.
  • the gas outlet openings have a diameter of the order of 0.8 mm. Their mutual distance is about 50 to 70 mm. Adequate fumigation can be achieved if the gas is supplied at an overpressure of 0.2 to 0.5 bar.
  • the cathode When filling an electrolytic cell, care should be taken that the cathode protrudes downward beyond the anode. In order to avoid scattering in the area of the tube provided with gas outlet openings, the cathode should protrude so far that the escaping gas does not flow under the cathode. An extension of the cathode 20 to 30 mm below the line of the gas outlet openings is generally sufficient.
  • the most important advantages achieved by the invention are that complicated cell installations or special cell constructions are not required, but that existing electrolysis cells can be converted without difficulty. Furthermore, operational handling and maintenance are economical and simple, and driving through the cell for the purposes of emptying, cleaning or repair is not hampered by complicated, fragile installation structures. If blockages occur, the pipe provided with gas outlet openings can be easily removed and, if necessary, replaced.
  • the possible high specific current load of approximately 400 to 600 A / m 2 , the good cathode metal quality, the space-saving construction as well as good efficiency and simple operational handling together result in a decisive increase in the efficiency of the electrolysis. Furthermore, the distance setting of the cathodes when replacing them at the end of an operating period and that of the anodes without hindrance can be changed by a separate gassing construction.
  • the anode 1 is provided with the support rod 2, which has a bore 5 at one end.
  • the bore 5 runs up to the outer edge line of the anode 1 in the axis of the support rod 2 and is then directed vertically downwards.
  • Both ends of the bore 5 are provided with soldered or screwed pipe nipples for receiving the quick coupling 8 on the one hand and for connecting the gas supply 9 on the other.
  • a tube 6 provided with gas outlet openings 7, which is connected to the gas supply 9 via a push-in sleeve 10.
  • the tube 6 is additionally fixed by the holder 12.
  • Two rails 4 are connected to the anode 1 by screw connections 13 (cf. in particular FIG. 2). 2 also shows that the rails 4 serve as spacers, include the gas feed 9 and electrically isolate the anode edges.
  • the gas primarily air, - after saturation in a humidifier and heating to electrolyte temperature (not shown) - is supplied via the gas supply line 14, which is freely arranged lengthways to the electrolysis cell, the elastic connection 11 and the connector 8.
  • the gas then passes through a gas feed line 9, which runs vertically downwards on the anode longitudinal edge, into the lower region of the anode to the plug-in sleeve 10 and from there into the tube 6. It exits into the electrolyte through the gas outlet openings.
  • FIG. 3 shows in particular the ratio of the extension from cathode 3 to tube 6.

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)

Claims (8)

1. Anode en métal insoluble pourvue d'une barre de suspension pour l'électro-extraction ou la séparation galvanique de métaux non ferreux à partir de solutions, caractérisée en ce que l'anode (1) comporte, sur son bord inférieur, un tube (6) adapté de manière amovible, s'étendant sur toute sa largeur et pourvu d'ouvertures de sortie de gaz (7), une admission de gaz (9) allant au tube (6) et s'étendant sur toute la face longitudinale de l'anode étant reliée à cette dernière.
2. Anode suivant la revendication 1, caractérisée en ce que, dans une face de la barre de suspension (2) de l'anode, est formé un passage (5) qui, à son extrémité intérieure, comporte un raccordement avec l'admission de gaz (9) s'étendant sur la face longitudinale de l'anode tandis que, à l'extrémité extérieure de ce passage, est prévue une pièce de raccordement (8) avec une conduite d'alimentation de gaz (14).
3. Anode suivant la revendication 2, caractérisée en ce que la pièce de raccordement (8) est réalisée sous forme d'un accouplement rapide.
4. Anode suivant l'une quelconque des revendications 1 à 3, caractérisée en ce que le tube (6) est assemblé à l'admission de gaz (9) au moyen d'un manchon enfichable (10).
5. Anode suivant une ou plusieurs des revendications 1 à 4, caractérisée en ce qu'on prévoit des rails non conducteurs (4) circonscrivant les faces longitudinales de l'anode (1), un de ces rails assurant la fixation de l'admission de gaz (9) sur l'anode (1
6. Anode suivant la revendication 5, caractérisée en ce que les rails (4) s'étendant latéralement comportent des supports pour le tube (6).
7. Anode suivant les revendications 5 et 6, caractérisée en ce que la distance sur laquelle s'étendent les rails (4) perpendiculairement à la surface de l'anode, est calculée de telle sorte que ces rails fassent office d'éléments d'écartement vis-à- vis de la cathode voisine (3).
8. Anode suivant une ou plusieurs de renvedica- tions 1 à 7, caractérisée en ce que les axes des ouvertures de sortie de gaz (7) pratiquées dans le tube (6) face à la surface de l'anode s'étendent horizontalement ou en oblique vers le haut.
EP79200508A 1978-10-26 1979-09-14 Anode pour la production électrolytique ou le dépôt galvanique de métaux non-ferreux Expired EP0010786B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782846692 DE2846692A1 (de) 1978-10-26 1978-10-26 Anode
DE2846692 1978-10-26

Publications (2)

Publication Number Publication Date
EP0010786A1 EP0010786A1 (fr) 1980-05-14
EP0010786B1 true EP0010786B1 (fr) 1982-01-20

Family

ID=6053219

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79200508A Expired EP0010786B1 (fr) 1978-10-26 1979-09-14 Anode pour la production électrolytique ou le dépôt galvanique de métaux non-ferreux

Country Status (7)

Country Link
US (1) US4263120A (fr)
EP (1) EP0010786B1 (fr)
JP (1) JPS5558385A (fr)
CA (1) CA1128465A (fr)
DE (2) DE2846692A1 (fr)
ES (1) ES485336A1 (fr)
FI (1) FI61922C (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX171716B (es) * 1982-12-10 1993-11-11 Dextec Metallurg Un electrodo para una celda electrolitica para la recuperacion de metales de minerales metaliferos o concentrados y metodo para fabricarlo
DE3640020C1 (de) * 1986-11-24 1988-02-18 Heraeus Elektroden Elektrolysezelle zur elektrolytischen Abscheidung von Metallen
FI86262C (fi) * 1987-04-16 1992-08-10 Outokumpu Oy Foerfarande och anordning foer utraetning av gjutna anoder.
US5217598A (en) * 1989-09-29 1993-06-08 Hironari Sawa Process for electroplating and apparatus therefor
JPH03115593A (ja) * 1989-09-29 1991-05-16 Hiroshige Sawa 鍍金方法及びその鍍金方法に使用する鍍金装置
DE4238739C2 (de) * 1992-11-17 2000-04-20 Thyssen Nordseewerke Gmbh Kathode für die elektrolytische Raffination von Nichteisenmetallen, insbesondere Kupfer
GB9411063D0 (en) * 1994-06-02 1994-07-20 British Nuclear Fuels Plc Electrolytic treatment of material
WO2001051686A2 (fr) * 2000-01-10 2001-07-19 Michael John Thom Électrode d'électro-extraction
FR2844136B1 (fr) 2002-09-03 2006-07-28 Corning Inc Materiau utilisable dans la fabrication de dispositifs d'affichage lumineux en particulier de diodes electroluminescentes organiques
CL2009000893A1 (es) 2009-04-14 2009-08-28 Ancor Tecmin S A Estructura isobarica autosoportante conformada por un marco estructural hueco formado por tres materiales con un nucleo termoplastico hueco recubierto con capas de mantas de fibras de vidrio saturadas con resina, las que se cubren con un material compuesto polimerico termoestable, conformando un compuesto estructural resistente monolitico.
CL2010000023A1 (es) 2010-01-13 2011-10-07 Ancor Tecmin S A Sistema para suministrar aire a un grupo de celdas electroliticas que comprende; un soplador de aire, una tuberia de suministro, un flujometro con un regulador de flujo y conectado entre una primera manguera y una segunda manguera; y un proceso para la operacion de un sistema.
CN102411020A (zh) * 2011-08-22 2012-04-11 深圳市中兴环境仪器有限公司 一种布气环及应用该布气环的电化学电解池
US20190078223A1 (en) * 2013-07-22 2019-03-14 Percy Danilo Yanez Castaneda Anode-stiffening device and stiffening system that uses said device
WO2019219821A1 (fr) 2018-05-16 2019-11-21 Metallo Belgium Amélioration de l'électroraffinage du cuivre
CN112710047B (zh) * 2021-03-25 2021-07-30 黄向阳 一种医用加湿单元及加湿设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1278308A (en) * 1917-09-13 1918-09-10 Us Smelting Refining & Mining Company Manufacture of sulfuric acid.
US1365032A (en) * 1918-04-29 1921-01-11 William E Greenawalt Electrolytic apparatus
US1565216A (en) * 1922-06-10 1925-12-08 William P Topping Electroplated stereotype plate or nickel-plated printing plate and process of making the same
US1700178A (en) * 1923-09-01 1929-01-29 Porzel Joseph Device for controlling electrolytic operations
BE482434A (fr) * 1947-06-06
US2675348A (en) * 1950-09-16 1954-04-13 Greenspan Lawrence Apparatus for metal plating
US4113586A (en) * 1977-10-25 1978-09-12 Kennecott Copper Corporation Method and apparatus for the electrolytic recovery of metal employing electrolyte convection

Also Published As

Publication number Publication date
CA1128465A (fr) 1982-07-27
DE2846692A1 (de) 1980-05-08
FI61922C (fi) 1982-10-11
FI61922B (fi) 1982-06-30
US4263120A (en) 1981-04-21
JPS5558385A (en) 1980-05-01
JPS63515B2 (fr) 1988-01-07
EP0010786A1 (fr) 1980-05-14
DE2961887D1 (en) 1982-03-04
FI793080A7 (fi) 1980-04-27
ES485336A1 (es) 1980-08-16

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