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1. (WO2013113811) USE OF NITROGEN COMPOUNDS IN THE PICKLING OF STAINLESS STEEL

Pub. No.:    WO/2013/113811    International Application No.:    PCT/EP2013/051891
Publication Date: Fri Aug 09 01:59:59 CEST 2013 International Filing Date: Fri Feb 01 00:59:59 CET 2013
IPC: C23G 1/08
Applicants: HENKEL AG & CO. KGAA
Inventors: DEMERTZIS, Ioannis
RIGAMONTI, Mauro
GIORDANI, Paolo
GAMBOGGI, Paolo
Title: USE OF NITROGEN COMPOUNDS IN THE PICKLING OF STAINLESS STEEL
Abstract:
The present invention relates an acidic aqueous solution suitable for the pickling of stainless steel grades that comprises accelerators based on watersoluble inorganic compounds comprising at least one nitrogen atom in an oxidation state in the range of -2 to -1/3. The present invention further encompasses a process for the pickling of stainless steel that makes use of a pickling solution comprising the above-mentioned accelerators.