ELECTROCHEMICAL METHOD AND DEVICE FOR PRODUCING METAL HYDROXIDES AND / OR METAL OXIDE HYDROXIDES

摘要

PCT No. PCT/DE95/00643 Sec. 371 Date Jan. 25, 1996 Sec. 102(e) Date Jan. 25, 1996 PCT Filed May 11, 1995 PCT Pub. No. WO95/33084 PCT Pub. Date Dec. 7, 1995The invention concerns an electrochemical process for the production of metallic hydroxides and/or metallic-oxide hydroxides from metal ions and hydroxide ions, as well as a device for carrying out the process. The metallic hydroxide and/or metallic-oxide hydroxide is formed in a chamber K, bordered on the cathode side by a bipolar membrane, and the required hydroxide ions arise by means of a bipolar membrane, the anion-selective layer being arranged on the anode side. The metal ions are either fed into the chamber K or formed in the chamber K in the presence of an agent, present in the chamber K and at a pH7, which complexes the metal ions. The device for implementation of the process exhibits a cylindrical head geometry, connected to a conical geometry.