Composite gas separation membranes
This invention relates to a composite gas separation membrane and to a process for preparing such a membrane. A polysulfone-zeolite composite membrane can be used to separate gas pairs such as hydrogen/carbon dioxide. Zeolite, preferably zeolite 3A particles are covalently bonded to the polymer usin...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | This invention relates to a composite gas separation membrane and to a process for preparing such a membrane.
A polysulfone-zeolite composite membrane can be used to separate gas pairs such as hydrogen/carbon dioxide. Zeolite, preferably zeolite 3A particles are covalently bonded to the polymer using an aminofunctional methoxysilane as a coupling agent to bind the zeolite particles to an aldehyde modified polysulfone matrix. |
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