Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1998-12-11
2000-05-16
Trinh, Ba K.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549529, 549530, 549531, 549533, C07D30112, C07D30119
Patent
active
060639431
ABSTRACT:
The present invention relates to a heterogeneous polyimide-supported transition metal complex catalyst for epoxidation of olefin, which is prepared by impregnating a heat- and acid-resistant polyimide resin with a homogeneous metal catalyst of molybdenum, vanadium, tungsten or titanium, and a process for preparing epoxy compounds using the same. The heterogeneous polyimide-supported transition metal complex catalyst of the invention provides superior catalytic activity, selectivity and stability in the epoxidation of higher olefin. Further, the catalyst of the invention has strong resistance against heat and acid. Besides, the catalyst of the invention may provide the following advantages which are critical in industrial use: it permits relatively high yield of epoxy compounds; and, it can be easily separated from the reaction product, which eases recycling of the catalyst.
REFERENCES:
patent: 5633391 (1997-05-01), Fenelli
patent: 5663384 (1997-09-01), Shum et al.
patent: 5670674 (1997-09-01), Grey
Ahn Jou Hyeon
Ihm Son Ki
Kim Jong Chan
Oh Chang Gun
Sherrington David C.
Korea Advanced Institute of Science and Technology
Trinh Ba K.
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