Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through substantially solid...
Reexamination Certificate
2007-02-20
2007-02-20
Hopkins, Robert A. (Department: 1724)
Gas separation: processes
Selective diffusion of gases
Selective diffusion of gases through substantially solid...
C095S050000, C096S011000, C096S012000, C521S027000
Reexamination Certificate
active
10822258
ABSTRACT:
The present invention relates to a facilitated transport membrane for separation of alkene hydrocarbons from hydrocarbon mixtures, comprising a porous support and a solid polymer electrolyte consisting of a transition metal salt and a polymer having phthalic structure, in which the electrolyte is in solid state at its operating temperature. The facilitated transport membrane is prepared by forming a solid polymer electrolyte consisting of a transition metal salt and a polymer on a porous support. The transition metal salt can selectively and reversibly form a complex with alkene hydrocarbons and the polymer can dissociate the transition metal salt. In particular, the polymer matrix allows the transition metal salt to be well dissociated because it has a phthalic structure capable of being coordinated to a transition metal ion.
REFERENCES:
patent: 5670051 (1997-09-01), Pinnau et al.
patent: 6706771 (2004-03-01), Kim et al.
Char Kookheon
Kang Sang Wook
Kang Yong Soo
Kim Hoon Sik
Kim Jong Hak
Day Jones
Hopkins Robert A.
Korea Institute of Science and Technology
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