PROCESS FOR THE ELECTROLYTIC REGENERATION OF COPPER ETCHANTS COMPRISING CHLORIDE IONS

Etching soln. is diluted to a concn. of 2-50 g/l Cu and pH 0.5-10. The electrolysis is carried out at 0.5-10 A/dm2, in the presence of a highly oxidisable organic agent, usually 1-4C aliphatic alcohol or aldehyde, hydrazine or hydroxylamine, pref. methanol.

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Bibliographische Detailangaben
Hauptverfasser:	SIPOS,GABOR,HU, MOLNAR,IMRE,HU, TIHANYI,KALMAN,HU
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTROLYTIC OR ELECTROPHORETIC PROCESSES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	Etching soln. is diluted to a concn. of 2-50 g/l Cu and pH 0.5-10. The electrolysis is carried out at 0.5-10 A/dm2, in the presence of a highly oxidisable organic agent, usually 1-4C aliphatic alcohol or aldehyde, hydrazine or hydroxylamine, pref. methanol.