Composite mixed conductor membranes for producing oxygen
US5240480A · kind A · utility
120Cited by
12References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1992 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Sep 15, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/785
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to novel multi-layer composite solid state membranes which are capable of separating oxygen from oxygen-containing gaseous mixtures at elevated temperatures. The membranes comprise a multicomponent metallic oxide porous layer having an average pore radius of less than about 10 micrometers and a multicomponent metallic oxide dense layer having no connected through porosity wherein the porous and dense layers are contiguous and such layers conduct electrons and oxygen ions at operating temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.