Supported metal membrane, a process for its preparation and use
Assigneedmc2 Degussa Metals Catalysts Cerdec AG
InventorsErnst Drost, Werner Kuhn, Meike Roos, Stefan Wieland, Bernd Kempf
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Abstract
The invention provides a supported metal membrane which contains a metal membrane on a support surface of a porous membrane support. The supported metal membrane is obtainable by applying the metal membrane to the support surface of the membrane support, wherein the pores in the membrane support are sealed, at least in the region of the support surface, prior to applying the metal membrane and are opened by removing the auxiliary substance only after applying the metal membrane.
Claims23
A supported metal membrane comprising a metal membrane on a support surface of a porous membrane support, wherein the pores of the membrane support are formed by electrochemically dissolving the copper-rich phase from eutetic alloy AgCu.
A method for preparing a supported metal membrane comprising:
- filling the pores of a porous membrane support with an auxiliary substance in at least a region defining a support surface;
- then
- applying a metal membrane to the support surface;
- and then
- removing the auxiliary substance from the pores of the porous membrane support.
A method for preparing a supported metal membrane comprising:
- applying a metal membrane to a support surface of a membrane support consisting of a multi-phase eutectic alloy having a phase more base than another phase;
- then
- electrochemically dissolving the more base phase from the membrane support to form pores in the membrane support.
Dependencies are inferred from the claim text.