Abstract: The present invention relates to a method for preparing a metallic membrane, more particularly to a method for preparing metallic membranes, which comprises dissolving a transition metal of Period 3 and its alloy particle powder and synthetic polymer in a fixed ratio; radiating or casting to prepare a membrane precursor; oxidizing the synthetic polymer on the membrane precursor under a mixed gaseous atmosphere of nitrogen and hydrogen; and sintering the membrane precursor at a predetermined temperature. The metallic membrane prepared by the process of the present invention has excellent mechanical and chemical properties and enables to maintain a relatively small pore size and high porocity than traditional membranes. Therefore, it is useful for water treatment.
Type:
Grant
Filed:
January 24, 2006
Date of Patent:
December 2, 2008
Assignees:
Korea Research Institute of Chemical Technology, Samwon Engineering Co., Ltd.
Inventors:
Kew-Ho Lee, In-Chul Kim, Soo-Min Lee, In-Hwan Choi