GB1360970A - Electrodecantation of electrolytic baths - Google Patents

Electrodecantation of electrolytic baths

Info

Publication number
GB1360970A
GB1360970A GB3551670A GB3551670A GB1360970A GB 1360970 A GB1360970 A GB 1360970A GB 3551670 A GB3551670 A GB 3551670A GB 3551670 A GB3551670 A GB 3551670A GB 1360970 A GB1360970 A GB 1360970A
Authority
GB
United Kingdom
Prior art keywords
electro
chamber
ionized
composition
coating
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
GB3551670A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB3551670A priority Critical patent/GB1360970A/en
Priority to ZA714693A priority patent/ZA714693B/en
Priority to FR7126779A priority patent/FR2112179B1/fr
Priority to NL7110038A priority patent/NL7110038A/xx
Priority to AU31489/71A priority patent/AU3148971A/en
Priority to BE770357A priority patent/BE770357A/en
Priority to DE19712136773 priority patent/DE2136773A1/en
Priority to US425289A priority patent/US3865706A/en
Publication of GB1360970A publication Critical patent/GB1360970A/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
    • 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

Abstract

1360970 Electro-decantation of electrolytic baths IMPERIAL CHEMICAL INDUSTRIES Ltd 12 July 1971 [22 July 1970] 35516/70 Heading C7B An electro-coating bath 2, comprising ionized material and counterion and having at least one electrode 5 used to effect a principal electrolytic process, e.g. electro-deposition of organic filmforming material or electro-plating with metal, is concentrated by electro-decantation by introducing at least part of the main bath composition into at least one open chamber defined in the bath at least in part by at least two opposed barriers 14 of material impermeable to ionized material but permeable to counterion, and passing current between the electrode and another (e.g. an article 3 to be coated) through the barriers and across the or each chamber so that components of the introduced composition which accumulate in the region of the barrier surfaces are separated and removed from the or each chamber e.g. by suction and a device 13 composition enriched in ionized material is returned to the main com- position. The current passed may also simultaneously effect the principal electrolytic process, e.g. the electro-coating of article 3, a composition depleted in ionized coating material being withdrawn from the chamber(s) to rinse a coated article and returned to the main composition. As shown the opposed barriers are preferably vertical and planar in parallel relationship separated by spacers, at least one barrier comprising an ion exchange membrane. The counter-electrode 5 may be located in a liquid tight chamber 7 bounded by outer impermeable walls of the electrode casing 6 and an inner ion exchange membrane wall 8, the chamber being flushed continuously or periodically through inlet and outlet ports 9 and 10. For coating, negatively charged coating material and positively charged counterions, e.g. polycarboxylic acid resin and alkali metal or ionized amine base, with pigment may be used. Specifications 1106979 and 1069841 are referred to.
GB3551670A 1970-07-22 1970-07-22 Electrodecantation of electrolytic baths Expired GB1360970A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB3551670A GB1360970A (en) 1970-07-22 1970-07-22 Electrodecantation of electrolytic baths
ZA714693A ZA714693B (en) 1970-07-22 1971-07-15 Concentration and coating processes and apparatus
FR7126779A FR2112179B1 (en) 1970-07-22 1971-07-21
NL7110038A NL7110038A (en) 1970-07-22 1971-07-21
AU31489/71A AU3148971A (en) 1970-07-22 1971-07-21 Concentration and coating processes and apparatus
BE770357A BE770357A (en) 1970-07-22 1971-07-22 METHODS AND APPARATUS FOR CONCENTRATION AND COATING
DE19712136773 DE2136773A1 (en) 1970-07-22 1971-07-22 Method and device for concentrating coating baths
US425289A US3865706A (en) 1970-07-22 1973-12-17 Concentration and coating processes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3551670A GB1360970A (en) 1970-07-22 1970-07-22 Electrodecantation of electrolytic baths

Publications (1)

Publication Number Publication Date
GB1360970A true GB1360970A (en) 1974-07-24

Family

ID=10378618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3551670A Expired GB1360970A (en) 1970-07-22 1970-07-22 Electrodecantation of electrolytic baths

Country Status (7)

Country Link
AU (1) AU3148971A (en)
BE (1) BE770357A (en)
DE (1) DE2136773A1 (en)
FR (1) FR2112179B1 (en)
GB (1) GB1360970A (en)
NL (1) NL7110038A (en)
ZA (1) ZA714693B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5080723A (en) * 1988-12-24 1992-01-14 Miele & Cie Gmbh & Co. Process and device for recovering the enamel slimes in electro-immersion enameling plants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5080723A (en) * 1988-12-24 1992-01-14 Miele & Cie Gmbh & Co. Process and device for recovering the enamel slimes in electro-immersion enameling plants

Also Published As

Publication number Publication date
NL7110038A (en) 1972-01-25
DE2136773A1 (en) 1972-03-09
ZA714693B (en) 1972-04-26
FR2112179B1 (en) 1974-04-05
BE770357A (en) 1972-01-24
AU3148971A (en) 1973-01-25
FR2112179A1 (en) 1972-06-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee