Dimensionally stable anodes and their use in the manufacture of alkali metal dichromates and chromic acids

摘要

The invention relates to dimensionally stable anodes consisting of a) an electrically conductive valve metal, b) a conductive interlayer, and c) an electrode coating composed of an electrocatalytically active substance, the interlayer consisting of one or more noble metals and/or noble metal alloys which have been deposited on the valve metal by electrodeposition from melts containing noble metal salts.