WO2004101866A3 - Method and devices for increasing the service life of a process solution for chemical-reductive metal coating - Google Patents

Method and devices for increasing the service life of a process solution for chemical-reductive metal coating Download PDF

Info

Publication number
WO2004101866A3
WO2004101866A3 PCT/DE2004/001043 DE2004001043W WO2004101866A3 WO 2004101866 A3 WO2004101866 A3 WO 2004101866A3 DE 2004001043 W DE2004001043 W DE 2004001043W WO 2004101866 A3 WO2004101866 A3 WO 2004101866A3
Authority
WO
WIPO (PCT)
Prior art keywords
process solution
chemical
service life
coating
interfering
Prior art date
Application number
PCT/DE2004/001043
Other languages
German (de)
French (fr)
Other versions
WO2004101866A2 (en
Inventor
Reinhard Schwarz
Klaus Fischwasser
Alexander Schiffer
Original Assignee
Blasberg Werra Chemie Gmbh
Reinhard Schwarz
Klaus Fischwasser
Alexander Schiffer
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 Blasberg Werra Chemie Gmbh, Reinhard Schwarz, Klaus Fischwasser, Alexander Schiffer filed Critical Blasberg Werra Chemie Gmbh
Priority to EP04738516A priority Critical patent/EP1623058A2/en
Publication of WO2004101866A2 publication Critical patent/WO2004101866A2/en
Publication of WO2004101866A3 publication Critical patent/WO2004101866A3/en

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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1617—Purification and regeneration of coating baths
    • 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
    • C25D21/12—Process control or regulation
    • C25D21/14—Controlled addition of electrolyte components
    • 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
    • C25D21/16—Regeneration of process solutions
    • C25D21/22—Regeneration of process solutions by ion-exchange

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Automation & Control Theory (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemically Coating (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

The invention relates to a method and devices for increasing the service life of a process solution used for chemical-reductive metal deposition. In said method, the pH-value is adjusted and the ions of the coating metal are replenished without interfering counter-ions by feeding the process solution, optionally after dilution, to at least one weakly acidic cation exchanger that is charged with ions of the coating metal. The reduction medium is replenished either in an auxiliary circuit or in a diluted process solution. Preferably, interfering cations originating in the reduction medium are eliminated with the aid of a strongly acidic, proton-charged cation exchanger and interfering anions with the aid of a weakly alkaline anion exchanger. During the metal deposition process, interfering cations that accumulate in the process solution are preferably eliminated with the aid of a strongly acidic, proton-charged cation exchanger. Said method permits a practically constant composition of the process solution with a negligible impurity content, producing a coating of exceptional quality. The increase in the service life of the process solution improves the cost-effectiveness and environmental compatibility of the chemical-reductive metal coating.
PCT/DE2004/001043 2003-05-12 2004-05-12 Method and devices for increasing the service life of a process solution for chemical-reductive metal coating WO2004101866A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04738516A EP1623058A2 (en) 2003-05-12 2004-05-12 Method and devices for increasing the service life of a process solution for chemical-reductive metal coating

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10322120.4 2003-05-12
DE2003122120 DE10322120A1 (en) 2003-05-12 2003-05-12 Methods and devices for extending the service life of a process solution for chemical-reductive metal coating

Publications (2)

Publication Number Publication Date
WO2004101866A2 WO2004101866A2 (en) 2004-11-25
WO2004101866A3 true WO2004101866A3 (en) 2005-07-21

Family

ID=33440894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2004/001043 WO2004101866A2 (en) 2003-05-12 2004-05-12 Method and devices for increasing the service life of a process solution for chemical-reductive metal coating

Country Status (3)

Country Link
EP (2) EP1623058A2 (en)
DE (1) DE10322120A1 (en)
WO (1) WO2004101866A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004038693B4 (en) * 2004-08-10 2010-02-25 Blasberg Werra Chemie Gmbh Apparatus and method for removing foreign matter from process solutions and process for regenerating a cation exchanger
ES2698205T3 (en) 2005-11-25 2019-02-01 Macdermid Enthone Inc Procedure and device for the purification of process solutions
DE102008056776A1 (en) * 2008-11-11 2010-05-12 Enthone Inc., West Haven Galvanic bath and method for the deposition of zinciferous layers
DE102018008312A1 (en) * 2018-10-22 2020-04-23 RIAG Oberflächentechnik AG Process for coating substrate surfaces, device with coating bath, density measuring device, removal device, adding devices and control
CN110880449B (en) * 2019-09-30 2022-07-19 王偲偲 Silicon wafer cleaning method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4863612A (en) * 1987-08-10 1989-09-05 Kinetico, Inc. Apparatus and method for recovering materials from process baths
US5112392A (en) * 1991-06-21 1992-05-12 Martin Marietta Energy Systems, Inc. Recovery process for electroless plating baths
DE4310366C1 (en) * 1993-03-30 1994-10-13 Fraunhofer Ges Forschung Method for regenerating aqueous coating baths operating in an electroless manner

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2726969A (en) 1953-12-03 1955-12-13 Gen Motors Corp Chemical reduction plating process
US2726968A (en) 1953-12-03 1955-12-13 Gen Motors Corp Electroless nickel solution control
DE19851180C1 (en) * 1998-11-06 2000-04-20 Guv Ges Fuer Umweltvertraeglic Chemical reduction metal plating solution is regenerated using a weakly basic anion exchanger for hypophosphite ion recycle to the cathodic chamber of an electrodialysis cell

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4863612A (en) * 1987-08-10 1989-09-05 Kinetico, Inc. Apparatus and method for recovering materials from process baths
US4863612B1 (en) * 1987-08-10 1994-11-01 Kineticon Inc Apparatus and method for recovering materials from process baths
US5112392A (en) * 1991-06-21 1992-05-12 Martin Marietta Energy Systems, Inc. Recovery process for electroless plating baths
DE4310366C1 (en) * 1993-03-30 1994-10-13 Fraunhofer Ges Forschung Method for regenerating aqueous coating baths operating in an electroless manner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CLEAN PRODUCTS AND PROCESSES, vol. 2, no. 4, 2001, HEIDELBERG, pages 209 - 219, XP008041196 *

Also Published As

Publication number Publication date
EP2039810A3 (en) 2011-11-02
EP2039810A8 (en) 2011-12-14
WO2004101866A2 (en) 2004-11-25
DE10322120A1 (en) 2004-12-09
EP1623058A2 (en) 2006-02-08
EP2039810A2 (en) 2009-03-25

Similar Documents

Publication Publication Date Title
CN102066612B (en) Optimized passivation on Ti-/Zr-basis for metal surfaces
ES2539576T3 (en) Successive anticorrosive pretreatment of metal surfaces in a multi-stage process
KR101422426B1 (en) Insulating coating treatment liquid for grain oriented electromagnetic steel sheet and process for manufacturing grain oriented electromagnetic steel sheet with insulating coating
RU2439197C9 (en) Anti-corrosion treatment method for clear uncovered metal surfaces (versions) and acid chlorine-free water solution for treating such surfaces
CN101663419B (en) Metal surface pretreatment fluid for cationic electrodeposition coating
DE10110833B4 (en) Process for applying a phosphate coating and use of the thus phosphated metal parts
CN108193202B (en) Environment-friendly metal surface treating agent and application thereof
EP0008942B1 (en) Compositions and processes for coating aluminium
EP2444523B1 (en) Electromagnetic steel sheet having insulating coating film and process for production thereof
EP2022874A1 (en) Directional electromagnetic steel sheet having high tension insulating coating film and method for processing the insulating coating film
ATE464404T1 (en) METHOD FOR PROVIDING A METAL SURFACE WITH A THIN CORROSION-INHIBITING COATING
US20060113005A1 (en) Method for surface treatment of aluminum alloy
KR20140021511A (en) Method for coating metallic surfaces with a polymer-containing coating agent, the coating agent and use thereof
JP2009052060A (en) Insulation film treatment liquid for grain oriented electric steel sheet, and manufacturing method of grain oriented electric steel sheet with insulation film
CA2320157A1 (en) Anticorrosive coatings and anticorrosive treatment
MY150514A (en) Process for preparing 2-amino-5-cyanobenzoic acid derivatives
WO2004101866A3 (en) Method and devices for increasing the service life of a process solution for chemical-reductive metal coating
PL1816234T3 (en) Aqueous passivating coating composition for zinc or zinc alloys and method for using same
WO2014180610A1 (en) Chrome-free coating for the electrical insulation of grain-oriented electrical steel strip
MY186469A (en) Methods for treating a ferrous metal substrate
JP4983334B2 (en) Insulating coating solution for grain-oriented electrical steel sheet and method for producing grain-oriented electrical steel sheet
WO1997035810A3 (en) A method of removing iron compounds and chromium compounds from an aqueous electrolytic solution as well as the use of this method in electrochemical machining
JP2009191317A (en) Method for manufacturing hot dip galvanized steel sheet having excellent degreasing property
WO2012109339A3 (en) Processes and compositions for improving corrosion performance of zirconium oxide pretreated zinc surfaces
MY143472A (en) Corrosion inhibition method

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2004738516

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2004738516

Country of ref document: EP