Methods and systems to protect the anodes in electrowinning cells containing Coatings Electrocatalytic Active damage caused by Reverse flows.

摘要

Methods and systems to protect the Anode Coatings that have electroextraccion electrocatalytically active in a Bank of electrolytic cells.Be damaged for various flows.In the first embodiment is provided preferably, one or more auxiliary power sources,When gatilladas by one or more Predetermined conditions being met,Keep The Bank electricco electrolytic cells in a State that is relatively safe for the anodes are electrocatalytically Active Coatings.A Second Preferred embodiment,The Invention is directed to a method for maintaining the polarization of the anodes in a positive acelda of electroextraccion cathodes (i.e. in a region of potential GiftThe Coating of the Anode is not susceptible to significant damage).In a Preferred embodiment, The Invention is directed to methods for Anode replacement Installation and maintenance of electroextraccion cells.