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AssigneesBp P.L.C., Dalian Institute of Chemical Physics, Chinese Academy of Sciences
InventorsWeishen Yang, Xinlei Liu, Yanshuo Li
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Mixed matrix pervaporation membranes are described which include i) a matrix phase comprising a polymeric material, and ii) a zeolitic imidazolate framework (ZIF) dispersed in the matrix phase. In membranes described, the thickness of the membrane is greater than 0.5 μm. The membranes may in examples be used in a process for separating an organic compound from an aqueous liquid mixture. An example process includes contacting the liquid mixture on one side of a mixed matrix pervaporation membrane to cause the organic compound to permeate the mixed matrix membrane, and removing from the other side of the membrane a permeate composition comprising a portion of the organic compound which permeated the membrane. Example membranes described have relatively good selectivity for separation of the organic compound from the liquid mixture.
1-23. (canceled)
A process for separating an organic compound from an aqueous liquid mixture, the process comprising:
A mixed matrix pervaporation membrane comprising a zeolitic imidazolate framework (ZIF) material dispersed in a matrix phase comprising a polymer, wherein the thickness of the membrane is greater than 0.5 μm.
A method of preparing a pervaporation membrane for use in the separation of alcohol from a liquid mixture, the membrane including zeolitic imidazolate framework (ZIF) material dispersed in a matrix phase comprising a polymer, the method including the step of applying a solution to a substrate by dip coating the substrate into the solution, wherein the solution comprises the ZIF material and/or a precursor of the polymer.
A method of preparing a pervaporation membrane for use in the separation of alcohol from a liquid mixture, the membrane including zeolitic imidazolate framework (ZIF) material dispersed in a matrix phase comprising a polymer, the method including the step of applying particles of the ZIF material to a surface of a substrate, and subsequently applying a precursor of the polymer to the particles of the ZIF material.
Dependencies are inferred from the claim text.