Method for the production of a composite metal membrane, composite metal membrane produced according to said method and use thereof

Production of a metal composite membrane consisting of a thin metal membrane having a required thickness and a metallic membrane support having a porous structure comprises placing a precursor of the metal membrane on a porous precursor of the membrane support; forming a metal composite between both precursors; adjusting the thickness of the metal membrane by deforming the metal composite; and producing the porous structure of the membrane support. Preferred Features: The metal composite is processed by cladding by rolling, explosive cladding or diffusion welding. The metal composite is deformed by rolling, pressing, hot extruding and/or deep drawing, preferably drawing into tubes. The membrane support has a thickness of less than 20-100, preferably 20-50 microns. The metal membrane has a thickness of 1-20, preferably 1-5 microns.