W.c. Heraeus Gmbh

Moltech Invent S.a.

Heraeus Elektrochemie Gmbh

Ulrich Stroder

Jean-Jacques R Duruz

Christina Modes

Jochen-Werner Kuhn-von Burgsdorff

Andrea Kramer

Jochen-Werner K Burgsdorff

Jean-Louis Jorda

Heinrich Meyer

For the electrolytic extraction of metal from a solution containing metal ions and situated in a first cell, metal is cathodically deposited by means of an anode on an electrically conductive endless band immersed partially into the solution, and is redissolved anodically in the electrolyte of an adjacent second cell by partial immersion of the circulating endless band; the metal dissolved in the second cell is again deposited in high purity on a cathode.

Method and apparatus for the electrolytic extraction of metals from a

Neodymium and neodymium-iron alloys are obtained by electrolysis of a neodymium salt melt using magnetite as the anode material. The cathode is non-consumable or is made of iron to be consumed and form a neodymium-iron alloy. The electrolysis is preferably carried out under a protective atmosphere.

Method for obtaining neodymium or neodymium-iron alloy by electrolysis

Laminated electrodes and a method for their preparation are described, these electrodes being composed of electrically conductive plastic having catalytic particles, composed of a catalyst deposited on supporting particles, pressed partially into the plastic. They can be used as oxygen anodes, for example in the electrolytic recovery of metal from aqueous solutions.

Laminated electrode the use thereof

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Johannesberg, Germany

Ulrich Stroder