| 摘要 |
A mixed matrix membrane is provided which comprises a continuous phase organ ic polymer and small pore molecular sieves dispersed therein. The molecular sieves have a largest minor crystallographic free diameter of 3.6 Angstroms or less. When these molecular sieves are properly interspersed with a continuou s phase polymer, the membrane will exhibit a mixed matrix membrane effect, i.e ., a selectivity increase of at least 10 % relative to a neat membrane containi ng no molecular sieves. Finally, methods for making and using such mixed matrix membranes to separate gases from a mixture containing two or more gases are also disclosed.
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