Abstract: A current feeder to electrodes, in particular for horizontally arranged gas evolving metal anodes for electrochemical processes. The current feeder stud is provided at its lower end with a connection element of valve metal. The connection element has a receiving bore into which the lower end of the current feeder stud is inserted leaving an intermediate space with reference to the receiving bore. The stud and connection element are fixed by a cast metal intermediate core and a substantially tubular contact structure of valve metal is embedded into this core. The contact structure is connected via a plurality of weld points to the wall of the receiving bore. Moreover, the valve metal connection element is connected to the current distribution elements of the electrode by an easily separable weld construction.

Abstract: A metal anode comprises a current feed and at least one current distributor branching therefrom. The current distributor has a sleeve consisting of two identically formed profiled members which each have a respective crosspiece and two unequal limbs extending from its ends at right angles in opposite senses. The two profiled members are, for formation of the sleeve, assembled together so that the shorter limb of the one profile member lies in the region of the free end of the longer limb of the other profile member, whereby on the two narrow sides of the sleeve offset projecting flanges result. On these flanges are connected respective plate-like elements. These form the active part of the electrode. The plate-like elements consist expediently of corrugated expanded metal.

Abstract: An electrode comprises a horizontally arranged current feed which is formed by a rail of copper or has such a rail as a current conductive component. From this rail at least one current distributor branches, which is constructed of a sleeve of valve metal and a core arranged therein, and of a metal which is a good electrical conductor which is in electrical connection with the sleeve and in which preferably a contact structure is embedded which consists of valve metal and is connected to the inner surface of the sleeve by a plurality of weld positions. To the sleeve of the current distributor an active part of the electrode is mechanically and electrically conductively connected.The essential feature of this electrode consists in that in the core of the current distributor a bar of material which is a good electrical conductor, preferably copper, engages which is connected in a mechanically and electrically conductive manner to the rail of the current feed.

Abstract: Such a coated valve metal electrode consists of at least one current feed and at least one current distributor. Current feed and current distributor are mechanically and electrically conductively connected via sheet-like connection elements. The active surface of this electrode consists of lamellas of valve metal having an active surface coating.The essential features of this electrode consist in that the coated overall surface of the lamellas F.sub.A and the surface F.sub.P assumed by the overall arrangement of the lamellas (length and breadth of the electrode surface) have a surface factor such that 20.gtoreq.F.sub.A /F.sub.P .gtoreq.4, preferably such that 14.gtoreq.F.sub.A /F.sub.P .gtoreq.6, and in that the greater proportion of the coated surface of the lamellas is directed perpendicularly to the surface of the strip to be coated.

Abstract: An electrode for electrolytic extraction of metals or metal oxides comprises a horizontally arranged current feed which has a copper rail as current feeding component. From this rail at least one current distributor branches, which consists of a sleeve of valve metal and a core arranged therein and consisting of metal which is a good electrical conductor which is in good electrical connection with the sleeve and in which preferably a contact structure is embedded. To the sleeve of the current distributor an active part of the electrode is mechanically and electrically connected.The rail of the current feed of copper is provided in the region of the connection position of a current distributor with a connection element of valve metal which is connected to the copper rail via a separate copper element by explosion welding.

Abstract: A coated valve metal anode for the electrolytic extraction of metals or metal oxides, comprising a current-carrying component, e.g. a current lead and/or a current distributor, which consists of a jacket of valve metal and a core arranged therein made of a metal which is a good conductor.In order to prevent as far as possible the internal ohmic voltage loss in the case of such an electrode, in the core metal of the current-carrying component a contact structure is embedded which is preferably made of valve metal and is connected by a plurality of welds with the inner surface of the jacket.

Abstract: A coated metal anode for the electrolytic recovery of metals is disclosed, whereby the working surface of this anode is represented by rods 4 which are arranged in a plane in spaced, parallel relationship to each other and which are electrically connected to a current supply rail 3.To provide a coated metal anode of the identified type, which ensures an operation with acceptable current density and which permits with a simple constructive assembly an energy saving deposit of metal with high purity on the oppositly disposed cathode, the total surface F.sub.A of the rods 4 and the surface F.sub.p assumed by the total arrangement of the rods 4 fulfills the relationship 6.gtoreq.F.sub.A :F.sub.p .gtoreq.2.

Abstract: The invention comprises an anode with a core of valve metal for the anodic separation of solid substances. The working surface of the anode having an electrically conductive, corrosion-resistant, mechanically solid coating, which impedes the passivation of the core. The invention further comprises the use of such anodes for the electrolytic preparation of manganese oxides, particularly of manganese dioxides.

Abstract: A coated metal anode for the electrolytic recovery of metals is disclosed, whereby the working surface of this anode is represented by rods 4 which are arranged in a plane in spaced, parallel relationship to each other and which are electrically connected to a current supply rail 3.To provide a coated metal anode of the identified type, which ensures an operation with acceptable current density and which permits with a simple constructive assembly an energy saving deposit of metal with high purity on the oppositely disposed cathode, the total surface F.sub.A of the rods 4 and the surface F.sub.p assumed by the total arrangement of the rods 4 fulfills the relationship 6.gtoreq.F.sub.A :F.sub.p .gtoreq.2.