Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1987-08-28
1988-10-04
Cintins, Ivars
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210651, B01D 1300, B01D 1504
Patent
active
047754788
ABSTRACT:
The present invention relates to a novel process for removing acids from cathodic electrocoating baths, in which electrically conductive substrates are coated with cationic resins present in the form of aqueous dispersions, part or all of the dip-coating bath being subjected to an ultrafiltration in which the ultrafiltration membrane retains the cationic resin and an ultrafiltrate is formed which contains water, solvent, low molecular weight substances and ions, and part or all of the ultrafiltrate being recycled to the coating bath, in which process
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Loop (1978) Cathodic Electrodeposition for Automobile Coatings, World Surface Coatings Abstracts; Abst. 3929.
Bruecken Thomas
Voss Hartwig
BASF - Aktiengesellschaft
Cintins Ivars
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