FR2397472A2 - Zinc recovery from galvanising bath dross - which is dissolved electrolytically, followed by electrolytic winning of the zinc - Google Patents

Zinc recovery from galvanising bath dross - which is dissolved electrolytically, followed by electrolytic winning of the zinc

Info

Publication number
FR2397472A2
FR2397472A2 FR7721729A FR7721729A FR2397472A2 FR 2397472 A2 FR2397472 A2 FR 2397472A2 FR 7721729 A FR7721729 A FR 7721729A FR 7721729 A FR7721729 A FR 7721729A FR 2397472 A2 FR2397472 A2 FR 2397472A2
Authority
FR
France
Prior art keywords
zinc
dross
vessel
followed
recovery
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
FR7721729A
Other languages
French (fr)
Other versions
FR2397472B2 (en
Inventor
Maurice Bonnemay
Jean Royon
Jean-Claude Catonne
Marie-Therese Descarsin
Henri Fencki
Marcel Bernard-Maugiron
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.)
SEPREZ
Original Assignee
SEPREZ
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 SEPREZ filed Critical SEPREZ
Priority to FR7721729A priority Critical patent/FR2397472A2/en
Publication of FR2397472A2 publication Critical patent/FR2397472A2/en
Application granted granted Critical
Publication of FR2397472B2 publication Critical patent/FR2397472B2/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/20—Obtaining zinc otherwise than by distilling
    • C22B19/24—Obtaining zinc otherwise than by distilling with leaching with alkaline solutions, e.g. ammonia
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/30—Obtaining zinc or zinc oxide from metallic residues or scraps
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The parent patent described the recovery of Zn from dross obtd. during hot dip Zn coating, or from scrap arising in refineries or foundries mfg. Zn. The novelty in this addn. is that dross and/or ash from galvanising baths is electrolytically dissolved by making the dross the soluble anode, the Zn dissolving via the reaction Zn right arrow Zn2+ + 2e-; whereas the cathode is formed by a vessel (c), on whic the reaction 1/2 O2 = H2O + 2 e- right arrow 2OH- occurs. An alkaline electrolyte is used, and the resulting soln. is circulated between the vessel(c) and an electrolysis cell, in which the reverse reactions occur so Zn is deposited on a cathode. The anolyte in the electrolysis cell is pref. circulated through vessel(c) to enrich the anolyte with Zn; vessel(c) is pref. made of stainless steel.
FR7721729A 1977-07-13 1977-07-13 Zinc recovery from galvanising bath dross - which is dissolved electrolytically, followed by electrolytic winning of the zinc Granted FR2397472A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7721729A FR2397472A2 (en) 1977-07-13 1977-07-13 Zinc recovery from galvanising bath dross - which is dissolved electrolytically, followed by electrolytic winning of the zinc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7721729A FR2397472A2 (en) 1977-07-13 1977-07-13 Zinc recovery from galvanising bath dross - which is dissolved electrolytically, followed by electrolytic winning of the zinc

Publications (2)

Publication Number Publication Date
FR2397472A2 true FR2397472A2 (en) 1979-02-09
FR2397472B2 FR2397472B2 (en) 1980-02-15

Family

ID=9193381

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721729A Granted FR2397472A2 (en) 1977-07-13 1977-07-13 Zinc recovery from galvanising bath dross - which is dissolved electrolytically, followed by electrolytic winning of the zinc

Country Status (1)

Country Link
FR (1) FR2397472A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003627A1 (en) * 1982-04-19 1983-10-27 Hissel, Joseph, Alfred Method and apparatus for reclaiming zinc from industrial zinc-bearing waste metal
US5106467A (en) * 1990-10-05 1992-04-21 Armco Steel Company, L.P. Alkaline leaching of galvanized steel scrap
FR2737673A1 (en) * 1995-08-09 1997-02-14 Europ De Dezingage Comp PROCESS FOR RECOVERING WASTE, MADE OF SHEETS COVERED ON AT LEAST ONE SIDE OF A ZINC LAYER

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003627A1 (en) * 1982-04-19 1983-10-27 Hissel, Joseph, Alfred Method and apparatus for reclaiming zinc from industrial zinc-bearing waste metal
US5106467A (en) * 1990-10-05 1992-04-21 Armco Steel Company, L.P. Alkaline leaching of galvanized steel scrap
FR2737673A1 (en) * 1995-08-09 1997-02-14 Europ De Dezingage Comp PROCESS FOR RECOVERING WASTE, MADE OF SHEETS COVERED ON AT LEAST ONE SIDE OF A ZINC LAYER
WO1997006283A1 (en) * 1995-08-09 1997-02-20 Compagnie Europeenne De Dezingage Method for upgrading waste material comprising sheet metal with a zinc plating on at least one side thereof

Also Published As

Publication number Publication date
FR2397472B2 (en) 1980-02-15

Similar Documents

Publication Publication Date Title
PL208432A1 (en) METHOD OF MAKING CARBONATES OF ALKALINE METALS WAY OF ELECTROLYSIS
GB1191034A (en) Electrolytic Regeneration of Spent Ammonium Persulfate Solutions
DE3064787D1 (en) Method for producing electrodes having mixed metal oxide catalyst coatings
FR2397472A2 (en) Zinc recovery from galvanising bath dross - which is dissolved electrolytically, followed by electrolytic winning of the zinc
GB1293648A (en) Addition of metal ions to electrolytic plating baths
ES462257A1 (en) Apparatus for recovering zinc from residues
ES429847A1 (en) Surface treatment of aluminium and aluminium alloys
EP0461271A1 (en) Process for continuously applying electro-deposited manganese or manganese alloy coating to steel plate
FR2311109A1 (en) Continuous electrolytic refining of metals and nonmetals - where continuous cathode strip travels through electrolyte
US4234401A (en) Method for recovery and use of zinc from a leach solution
GB1527979A (en) Electrolytic process for the production of alkali metal stannates
JPS5928539A (en) Recovery of tin from tin coated scrap
FR2385817A1 (en) PROCESS FOR PREPARING ACTIVE ANODES FOR ELECTROCHEMISTRY, IN PARTICULAR FOR PRODUCING HYDROGEN
FR2364277A1 (en) Zinc recovery from galvanising mattes and ashes - by dissolving zinc and electrodepositing
GB992767A (en) Process for electroplating of metals and apparatus for effecting the same
JPS56152980A (en) Production of alkali hydroxide
FR2400570A1 (en) Zinc recovery from galvanising mattes and ashes - by dissolving zinc and electrodepositing
Kitayama et al. Process for Electro-Tin Plating
FR2378099A2 (en) Zinc recovery from galvanising mattes and ashes - by dissolving zinc and electrodepositing
JPS57192293A (en) Manufacture of surface treated steel sheet of excellent paint adherence
JPS531603A (en) Pretreatment of cathode to be used at deposition of metal by electrolysis from solution containing metal salt
JPS57149498A (en) Method of supplying zinc ion to zinc plating alkaline bath
JPS5558395A (en) Production of tinfree steel
JPS54132497A (en) Cathode for electrolysis of aqueous solution of alkali metal halide and manufacture thereof
FR2405311A1 (en) Electrolytic plating solution control - by dissolving sample solns. and measuring the time differences of dissolution