Method for preparing metallic membrane
US7459108B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 24, 2006 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Aug 9, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/169
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.