ES8402371A1 - Electrodeposition bath treatment - Google Patents

Electrodeposition bath treatment

Info

Publication number
ES8402371A1
ES8402371A1 ES517979A ES517979A ES8402371A1 ES 8402371 A1 ES8402371 A1 ES 8402371A1 ES 517979 A ES517979 A ES 517979A ES 517979 A ES517979 A ES 517979A ES 8402371 A1 ES8402371 A1 ES 8402371A1
Authority
ES
Spain
Prior art keywords
ultrafiltrate
electrodeposition bath
resin
electrodeposition
bath treatment
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
ES517979A
Other languages
Spanish (es)
Other versions
ES517979A0 (en
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.)
PPG Industries Inc
Original Assignee
PPG Industries Inc
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 PPG Industries Inc filed Critical PPG Industries Inc
Publication of ES517979A0 publication Critical patent/ES517979A0/en
Publication of ES8402371A1 publication Critical patent/ES8402371A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D13/00—Electrophoretic coating characterised by the process
    • C25D13/22—Servicing or operating apparatus or multistep processes
    • C25D13/24—Regeneration of process liquids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

In a method of operating an electrodeposition process wherein an electrically conductive article is electrocoated from an electrodeposition bath 1 comprising synthetic resin ionically dispersed in an aqueous medium which comprises subjecting at least a portion of the electrodeposition bath to an ultrafiltration process wherein the ultrafiltration membrane 7 retains the dispersed resin and passes ultrafiltrate comprising water and solute of substantially lower molecular size than said resin including ions of the charge opposite to said resin and returning at least a portion of the ultrafiltrate 11 to the electrodeposition bath, the improvement comprises: subjecting at least a portion 19 of the ultrafiltrate to electrodialysis 21 before the ultrafiltrate is returned to the electrodeposition bath, whereby ions of the charge opposite to said resin are removed from the ultrafiltrate.
ES517979A 1981-12-08 1982-12-07 Electrodeposition bath treatment Expired ES8402371A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32876481A 1981-12-08 1981-12-08

Publications (2)

Publication Number Publication Date
ES517979A0 ES517979A0 (en) 1984-01-16
ES8402371A1 true ES8402371A1 (en) 1984-01-16

Family

ID=23282341

Family Applications (1)

Application Number Title Priority Date Filing Date
ES517979A Expired ES8402371A1 (en) 1981-12-08 1982-12-07 Electrodeposition bath treatment

Country Status (7)

Country Link
JP (1) JPS58104196A (en)
BE (1) BE895268A (en)
DE (1) DE3243770A1 (en)
ES (1) ES8402371A1 (en)
FR (1) FR2517706A1 (en)
GB (1) GB2111080A (en)
IT (1) IT1154634B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3642164A1 (en) * 1986-12-10 1988-06-23 Basf Ag METHOD FOR REMOVING ACID FROM CATHODIC ELECTRO-DIP LACQUER BATHS BY ELECTRODIALYSIS
DE3740785A1 (en) * 1987-12-02 1989-06-15 Basf Ag METHOD FOR REMOVING ACID FROM CATHODIC ELECTRO-DIP LACQUER BATHS BY ELECTRODIALYSIS
FR2645292A1 (en) * 1989-03-30 1990-10-05 Morgane Method and installation for regulating the pH of a medium which is reactional by electrodialysis
US5047128A (en) * 1990-01-02 1991-09-10 Shipley Company Inc. Electrodialysis cell for removal of excess electrolytes formed during electrodeposition of photoresists coatings
DE10105806A1 (en) * 2001-02-08 2002-09-05 Eisenmann Kg Maschbau Electrophoretic dip coating of car chassis involves coating chassis with lacquer, and removing acid formed during coating by electrodialysis using voltage source outside sink
DE10132349B4 (en) * 2001-07-04 2006-08-17 Eisenmann Maschinenbau Gmbh & Co. Kg Method and plant for the cataphoretic dip painting of objects
DE10235117B3 (en) * 2002-08-01 2004-02-12 EISENMANN Maschinenbau KG (Komplementär: Eisenmann-Stiftung) Plant for the cataphoretic dip painting of objects
US20060219635A1 (en) * 2005-03-30 2006-10-05 Special Membrane Technologies, Inc. High-density filtration module
DE102011056496A1 (en) * 2011-12-15 2013-06-20 Dürr Systems GmbH Coating plant and process for coating workpieces
JP5876767B2 (en) * 2012-05-15 2016-03-02 株式会社荏原製作所 Plating apparatus and plating solution management method
DE102012218495A1 (en) * 2012-10-11 2014-04-17 Bayerische Motoren Werke Aktiengesellschaft Method for performing cathodic dip painting of to-be-painted object, involves adjusting ion concentration of anolyte recovered from anolyte system and supplying anolyte to portion of ultra-filtrate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663406A (en) * 1971-03-11 1972-05-16 Ppg Industries Inc Combined electrodialysis and ultrafiltration of an electrodeposition bath

Also Published As

Publication number Publication date
JPS58104196A (en) 1983-06-21
BE895268A (en) 1983-06-07
IT1154634B (en) 1987-01-21
ES517979A0 (en) 1984-01-16
FR2517706A1 (en) 1983-06-10
DE3243770A1 (en) 1983-07-21
IT8224642A1 (en) 1984-06-06
IT8224642A0 (en) 1982-12-06
GB2111080A (en) 1983-06-29

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