EP0034391A1 - Utilisation d'un alliage de plomb pour des anodes dans la production de zinc par électrolyse - Google Patents

Utilisation d'un alliage de plomb pour des anodes dans la production de zinc par électrolyse Download PDF

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Publication number
EP0034391A1
EP0034391A1 EP81200163A EP81200163A EP0034391A1 EP 0034391 A1 EP0034391 A1 EP 0034391A1 EP 81200163 A EP81200163 A EP 81200163A EP 81200163 A EP81200163 A EP 81200163A EP 0034391 A1 EP0034391 A1 EP 0034391A1
Authority
EP
European Patent Office
Prior art keywords
anodes
zinc
lead
weight
alloy
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.)
Granted
Application number
EP81200163A
Other languages
German (de)
English (en)
Other versions
EP0034391B1 (fr
Inventor
Adolf Dr.-Ing. Von Röpenack
Günter Ing. grad. Stock
Ulrich Dr.-Ing. Heubner
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.)
Ruhr Zink GmbH
Original Assignee
Ruhr Zink GmbH
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 Ruhr Zink GmbH filed Critical Ruhr Zink GmbH
Publication of EP0034391A1 publication Critical patent/EP0034391A1/fr
Application granted granted Critical
Publication of EP0034391B1 publication Critical patent/EP0034391B1/fr
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C11/00—Alloys based on lead
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/16—Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury
    • 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 wet metallurgical extraction of zinc usually takes place according to the process principle of zinc blende roasting, leaching of the roasted material, lye cleaning, electrolytic deposition of zinc and remelting of the zinc previously drawn off from the cathodes. Electrolytic deposition takes place practically exclusively from sulfuric acid solutions with the help of aluminum cathodes and lead anodes.
  • Anode materials are primarily ternary lead alloys with mostly silver contents that are between 0.5 and 1.0% by weight.
  • the third alloy component studies are available on thallium, tellurium, selenium, bismuth, calcium, gold, mercury, strontium, barium, arsenic, tin and cobalt (The Journal of Applied Chemistry of the USSR -english translation- Vol. 24 (1951) P. 1429 ff) and magnesium and silicon (The Journal of Applied Chemistry of the USSR -english translation- Vol. 26 (1953) p. 847 ff).
  • the object of the invention is to provide an alloy for anodes in the electrolytic extraction of zinc from acidic solutions which do not have the disadvantages of the known alloys, have advantageous electrical and mechanical properties and can be produced as inexpensively as possible.
  • the solution to the problem lies in the use of a lead alloy consisting of 0.05 to 0.25% by weight of strontium and / or 0.05 to 0.1% by weight of calcium and 0.1 to 0.5% by weight. % Silver, balance lead for anodes in the electrolytic extraction of zinc from acidic solutions.
  • strontium-containing alloys those in which the strontium content is 0.05 to 0.1% by weight are preferably used.
  • the anodes made from the aforementioned alloys have considerable hardness and high elasticity. They are dimensionally stable, so that they can be produced in a smaller thickness than conventional anodes. This saves alloy material in general and silver in particular. Due to the low weight of the anodes, the connection elements, in particular the support rods, can also be constructed more easily.
  • the high dimensional stability of the anodes allows the electrode spacing to be reduced, so that a reduction in energy consumption is achieved.
  • Alloys containing calcium or strontium are expediently used for reasons of simpler production. With regard to their properties, however, those that have both alloy components are also equivalent.
  • the anodes can be produced by rolling or casting.
  • the possibility of casting is advantageous insofar as the anodes are immediately given their final dimensions and - if desired - passage openings for the electrolyte can already be provided during the casting.
  • the strength of the metal alloy is so high that even in the manufacture of anodes with through openings, a greater thickness - for reasons of stability, for example - is not necessary.
  • the corrosion resistance of the anodes is so high that there is practically no removal even after months of operation. This is particularly surprising because there was a fear that a reduction in the silver content in the alloy would be associated with an increase in corrosion.
  • the anodes obtained are used under the usual electrolysis conditions, ie for example at a current density of 160 to 630 A / m 2, a temperature of 30 to 46 ° C and a sulfuric acid content of the electrolyte of 165 to 220 g / 1 and a zinc content of the electrolyte of 40 to 70 g / l.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Electrolytic Production Of Metals (AREA)
EP81200163A 1980-02-15 1981-02-11 Utilisation d'un alliage de plomb pour des anodes dans la production de zinc par électrolyse Expired EP0034391B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803005674 DE3005674A1 (de) 1980-02-15 1980-02-15 Verwendung einer blei-legierung fuer anoden bei der elektrolytischen gewinnung von zink
DE3005674 1980-02-15

Publications (2)

Publication Number Publication Date
EP0034391A1 true EP0034391A1 (fr) 1981-08-26
EP0034391B1 EP0034391B1 (fr) 1983-08-24

Family

ID=6094697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200163A Expired EP0034391B1 (fr) 1980-02-15 1981-02-11 Utilisation d'un alliage de plomb pour des anodes dans la production de zinc par électrolyse

Country Status (8)

Country Link
US (1) US4364807A (fr)
EP (1) EP0034391B1 (fr)
JP (1) JPS56127743A (fr)
AU (1) AU538729B2 (fr)
DE (2) DE3005674A1 (fr)
ES (1) ES8704552A1 (fr)
FI (1) FI65821C (fr)
NO (1) NO153976C (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052106A1 (fr) * 1980-03-10 1982-05-26 KNIGHT, Bill J. Procede d'extraction de metaux a l'aide de l'electricite
EP0090435A1 (fr) * 1982-02-18 1983-10-05 Eltech Systems Corporation Procédé d'électrodéposition
FR2575109A1 (fr) * 1984-12-21 1986-06-27 Samim Soc Azionaria Minero Met Materiau composite et son utilisation comme materiau pour electrodes et comme isolant acoustique
FR2691649A1 (fr) * 1992-05-29 1993-12-03 Extramet Sa Procédé de décontamination des terres polluées par des métaux.
WO2000042241A1 (fr) * 1999-01-13 2000-07-20 Rsr Technologies, Inc. Anodes d'extraction electrolytiques permettant de produire rapidement un revetement d'oxyde protecteur
WO2014029848A1 (fr) 2012-08-24 2014-02-27 Novartis Ag Inhibiteurs de nep pour le traitement de maladies caractérisées par un agrandissement atrial ou une remodélisation atriale

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1133952B (it) * 1980-10-20 1986-07-24 Samim Spa Anodo inattaccabile in piombo alligato
JPS5959891A (ja) * 1982-09-28 1984-04-05 Akita Seiren Kk 金属電解採取用陽極
US4439288A (en) * 1983-07-11 1984-03-27 Exxon Research & Engineering Company Process for reducing Zn consumption in zinc electrolyte purification
JPH0652737U (ja) * 1992-12-26 1994-07-19 合資会社榊原 缶詰め飲食物の断熱具
US5648286A (en) * 1996-09-03 1997-07-15 Advanced Micro Devices, Inc. Method of making asymmetrical transistor with lightly doped drain region, heavily doped source and drain regions, and ultra-heavily doped source region
US6139705A (en) * 1998-05-06 2000-10-31 Eltech Systems Corporation Lead electrode
JP5048981B2 (ja) * 2006-08-29 2012-10-17 アシスト株式会社 ミストサウナ装置
US7458902B2 (en) * 2007-03-14 2008-12-02 Eaton Corporation Changeable golf grip
BG110844A (bg) * 2011-02-04 2012-10-31 "Кцм" Ад Метод и устройство за електроекстракция на цинк от сулфатни разтвори
CN103042031B (zh) * 2011-10-12 2016-06-08 云南大泽电极科技有限公司 铅合金板材的铸轧生产方法
CN106319565A (zh) * 2016-09-21 2017-01-11 东莞市联洲知识产权运营管理有限公司 一种氨性体系下制备电积锌的方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272339A (en) * 1980-03-10 1981-06-09 Knight Bill J Process for electrowinning of metals

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol 84, no. 16, 19 April 1976, Columsbus, Ohio USA G.Z. KIRYAKOV " Lead alloy" page 293, column 1, abstract no. 110019e & ussr 473, 756 (Cl.C22C), 14 june 1975, appl. 1, 956, 571 21 august 1973 *
chemical abstracts, vol. 82, no. 20, 19th may 1975, columbus , ohio,usa g.z. kiryakov " prospective improvements in lead-based anodes" page 398, column 1, abstract no. 130938r & Tsvetn. Met 1975, (1), 21-2 (RUSS) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052106A1 (fr) * 1980-03-10 1982-05-26 KNIGHT, Bill J. Procede d'extraction de metaux a l'aide de l'electricite
EP0052106A4 (fr) * 1980-03-10 1982-07-20 Bill J Knight Procede d'extraction de metaux a l'aide de l'electricite.
EP0090435A1 (fr) * 1982-02-18 1983-10-05 Eltech Systems Corporation Procédé d'électrodéposition
FR2575109A1 (fr) * 1984-12-21 1986-06-27 Samim Soc Azionaria Minero Met Materiau composite et son utilisation comme materiau pour electrodes et comme isolant acoustique
FR2691649A1 (fr) * 1992-05-29 1993-12-03 Extramet Sa Procédé de décontamination des terres polluées par des métaux.
WO1993024250A1 (fr) * 1992-05-29 1993-12-09 Entreprises Vibec Inc. Procede de decontamination des terres polluees par des metaux
WO1993024249A1 (fr) * 1992-05-29 1993-12-09 Unimetal - Societe Française Des Aciers Longs Procede de decontamination des terres polluees par des metaux
US5549811A (en) * 1992-05-29 1996-08-27 Unimetal Societe Francaise Des Aciers Longs Process for decontamination soils polluted with metals
WO2000042241A1 (fr) * 1999-01-13 2000-07-20 Rsr Technologies, Inc. Anodes d'extraction electrolytiques permettant de produire rapidement un revetement d'oxyde protecteur
WO2014029848A1 (fr) 2012-08-24 2014-02-27 Novartis Ag Inhibiteurs de nep pour le traitement de maladies caractérisées par un agrandissement atrial ou une remodélisation atriale

Also Published As

Publication number Publication date
EP0034391B1 (fr) 1983-08-24
AU6728681A (en) 1981-08-20
DE3160775D1 (en) 1983-09-29
JPS6323274B2 (fr) 1988-05-16
NO153976C (no) 1986-06-25
ES8704552A1 (es) 1987-06-01
NO153976B (no) 1986-03-17
FI810395L (fi) 1981-08-16
DE3005674A1 (de) 1981-08-20
NO810416L (no) 1981-08-17
US4364807A (en) 1982-12-21
ES499435A0 (es) 1987-06-01
FI65821B (fi) 1984-03-30
AU538729B2 (en) 1984-08-23
FI65821C (fi) 1984-07-10
JPS56127743A (en) 1981-10-06

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