C - Chemistry – Metallurgy – 23 – G
Patent
C - Chemistry, Metallurgy
23
G
C23G 1/36 (2006.01)
Patent
CA 2253826
Stainless steel pickling process in which a pickling solution containing HF and Fe3+ ions as essential components is used, and wherein the oxidation to Fe3+ of the Fe2+ formed during the process in order to maintain the Fe3+ concentration to the predetermined value, is electrolytically carried out by submitting the pickling solution as it is to an oxidation process in an electrolytic cell equipped with anode made of inalterable materials chosen among graphite, granular coal, lead and with cathodes made of stainless steel, graphite or other unalterable materials, said cell working with an applied tension between 1 and 8 V and with an anodic current density between 0.4 and 15 A/dm2.
L'invention concerne un procédé de décapage de l'acier inoxydable dans lequel on utilise une solution de décapage contenant des ions HF et Fe?3+¿ constituant les composants essentiels, et dans lequel l'oxydation en Fe?3+¿ de Fe?2+¿ formé au cours du procédé de sorte que la concentration de Fe?3+¿ soit maintenue à la valeur prédéterminée, s'effectue de manière électrolytique par exposition de la solution de décapage telle quelle à un procédé d'oxydation dans une cellule électrolytique dotée d'une anode en matériaux inoxydables choisis parmi le graphite, le charbon granulaire, le plomb, et de cathodes en acier inoxydable, graphite ou tout autre matériau inaltérable, ladite cellule fonctionnant avec une tension appliquée comprise entre 1 et 8 V et une densité de courant comprise entre 0,4 et 15 A/dm?2¿.
Busnelli Maurizio
Demertzis Ioannis
Giordani Paolo
Pedrazzini Cesare
Acciai Speciali Terni S.p.a.
Henkel Kommanditgesellschaft Auf Aktien
Ridout & Maybee Llp
LandOfFree
Steel pickling process in which the oxidation of the ferrous... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Steel pickling process in which the oxidation of the ferrous..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Steel pickling process in which the oxidation of the ferrous... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1723029