FR2778925B1 - PROCESS FOR ACCELERATING THE DISSOLUTION OF ZINC IN BASIC SUSPENSIONS AND DEVICE FOR DETECTING THE END OF DISSOLUTION - Google Patents

PROCESS FOR ACCELERATING THE DISSOLUTION OF ZINC IN BASIC SUSPENSIONS AND DEVICE FOR DETECTING THE END OF DISSOLUTION

Info

Publication number
FR2778925B1
FR2778925B1 FR9806699A FR9806699A FR2778925B1 FR 2778925 B1 FR2778925 B1 FR 2778925B1 FR 9806699 A FR9806699 A FR 9806699A FR 9806699 A FR9806699 A FR 9806699A FR 2778925 B1 FR2778925 B1 FR 2778925B1
Authority
FR
France
Prior art keywords
dissolution
accelerating
zinc
detecting
suspensions
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 - Fee Related
Application number
FR9806699A
Other languages
French (fr)
Other versions
FR2778925A1 (en
Inventor
Andre Darchen
Didier Hauchard
Serge Paofai
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.)
Ecole Nationale Superieure de Chimie de Rennes
Ecole National Superieure dArts et Metiers ENSAM
Original Assignee
Ecole Nationale Superieure de Chimie de Rennes
Ecole National Superieure dArts et Metiers ENSAM
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 Ecole Nationale Superieure de Chimie de Rennes, Ecole National Superieure dArts et Metiers ENSAM filed Critical Ecole Nationale Superieure de Chimie de Rennes
Priority to FR9806699A priority Critical patent/FR2778925B1/en
Publication of FR2778925A1 publication Critical patent/FR2778925A1/en
Application granted granted Critical
Publication of FR2778925B1 publication Critical patent/FR2778925B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/44—Compositions for etching metallic material from a metallic material substrate of different composition
    • 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
    • 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
FR9806699A 1998-05-25 1998-05-25 PROCESS FOR ACCELERATING THE DISSOLUTION OF ZINC IN BASIC SUSPENSIONS AND DEVICE FOR DETECTING THE END OF DISSOLUTION Expired - Fee Related FR2778925B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9806699A FR2778925B1 (en) 1998-05-25 1998-05-25 PROCESS FOR ACCELERATING THE DISSOLUTION OF ZINC IN BASIC SUSPENSIONS AND DEVICE FOR DETECTING THE END OF DISSOLUTION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9806699A FR2778925B1 (en) 1998-05-25 1998-05-25 PROCESS FOR ACCELERATING THE DISSOLUTION OF ZINC IN BASIC SUSPENSIONS AND DEVICE FOR DETECTING THE END OF DISSOLUTION

Publications (2)

Publication Number Publication Date
FR2778925A1 FR2778925A1 (en) 1999-11-26
FR2778925B1 true FR2778925B1 (en) 2001-03-02

Family

ID=9526782

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9806699A Expired - Fee Related FR2778925B1 (en) 1998-05-25 1998-05-25 PROCESS FOR ACCELERATING THE DISSOLUTION OF ZINC IN BASIC SUSPENSIONS AND DEVICE FOR DETECTING THE END OF DISSOLUTION

Country Status (1)

Country Link
FR (1) FR2778925B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886552A (en) * 1988-09-09 1989-12-12 United Technologies Corporation Method for monitoring the removal of a metallic contaminant from the surface of a metallic article
US5106467A (en) * 1990-10-05 1992-04-21 Armco Steel Company, L.P. Alkaline leaching of galvanized steel scrap
EP0771370B1 (en) * 1994-07-19 2003-06-04 Corus Staal BV Process for electrochemically dissolving a metal such as zinc or tin
NL9500302A (en) * 1995-02-17 1996-10-01 Hoogovens Staal Bv Method for removing at least a coating from metal scrap parts coated with a coating.
FR2737673B1 (en) * 1995-08-09 1997-10-31 Europ De Dezingage Comp PROCESS FOR RECOVERING WASTE, MADE OF SHEETS COVERED ON AT LEAST ONE SIDE OF A ZINC LAYER

Also Published As

Publication number Publication date
FR2778925A1 (en) 1999-11-26

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Legal Events

Date Code Title Description
ST Notification of lapse
RN Application for restoration
FC Favourable decision of inpi director general on an application for restauration.
ST Notification of lapse

Effective date: 20070131