Abstract An electrode comprising a current-conducting base having deposited thereon an active mass of the following composition, in percent by mass: ______________________________________ silica 10-90
platinum group metal oxides
5-45
oxides of passivating metals
5-45.
______________________________________ The electrode of this invention is useful as anodes in the production of chlorine and caustic soda, as well as in electrolytic processes of producing chlorates and hyperchlorites.
An electrode for electrochemical processes, said electrode consisting essentially of a current-conducting base of a passivating metal having a layer of an active mass deposited thereon, said layer consisting of silica, oxides of passivating metals and oxides of metals of the platinum group, the components being present in the following proportions, in percent by mass: ______________________________________
silica 10-90
platinum group metal oxides
5-45
oxides of passivating metals
5-45.
______________________________________
Claim 2
Dependent Claim
69 words
An electrode for electrochemical processes, said electrode consisting essentially of a current-conducting base of a passivating metal having a layer of an active mass deposited thereon, said layer consisting of silica, oxides of passivating metals and oxides of metals of the platinum group, the components being present in the following proportions, in percent by mass: ______________________________________
silica 10-90
platinum group metal oxides
5-45
oxides of passivating metals
5-45.
______________________________________
Claim 3
Dependent Claim
32 words
An electrode according to claim 1, wherein the active mass has the following composition, in percent by mass: ______________________________________
silica 10-75
platinum group metal oxides
20-45
oxides of passivating metals
5-45.
______________________________________
Claim 4
Dependent Claim
32 words
An electrode according to claim 1, wherein the active mass has the following composition, in percent by mass: ______________________________________
silica 10-30
platinum group metal oxides
35-45
oxides of passivating metals
35-45.
______________________________________
Claim 5
Dependent Claim
25 words
Electrode according to claim 1, wherein said passivating metal is selected from the group consisting of titanium, tantalum, zirconium, niobium and alloys of these metals.
Claim 6
Dependent Claim
20 words
Electrode according to claim 4, wherein said platinum group metal is selected from the group consisting of ruthenium and iridium.