Catalyst for synthesizing alkylene carbonate

Details Catalyst for synthesizing alkylene carbonate Catalyst for synthesizing alkylene carbonate

2005-08-23

2005-08-23

Solola, Taofiq (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S230000, C502S164000

Reexamination Certificate

active

06933394

ABSTRACT:
The present invention provides an alkylene-carbonate synthesis catalyst comprising a compound insoluble to one phase containing alkylene carbonate produced when the alkylene oxide and carbon dioxide are reacted with the catalyst and soluble to the other phase substantially free of alkylene carbonate. The catalyst allows alkylene carbonate to be produced with high yield and selectivity and be readily collected. The catalyst also facilitates repeated or continuous reaction process in a cost-effective manner. The present invention also provides an apparatus for producing alkylene carbonate using the catalyst.

REFERENCES:
patent: 4371704 (1983-02-01), McEntire et al.
patent: 4663467 (1987-05-01), Kruper, Jr. et al.
patent: 4786741 (1988-11-01), Sachs
patent: 2 113 207 (1983-08-01), None
European Search Report for 03004908. 4-2117-dated Aug. 6, 2003.
Patent Abstracts of Japan vol. 008, No. 098, May 9, 1984 & JP 59 013766 (Showa Denko K.K.), Jan. 24, 1984.
Patent Abstracts of Japan vol. 005, No. 054, Apr. 15, 1981 & JP 56 008336 (Showa Denko K.K.), Jan. 28, 1981.

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