Direct epoxidation process

Details Direct epoxidation process Direct epoxidation process

2007-07-03

2007-07-03

Parsa, J. (Department: 1621)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S534000

Reexamination Certificate

active

11358984

ABSTRACT:
A process is disclosed for reacting an olefin, hydrogen, and oxygen in a reactor in the presence of a catalyst comprising a transition metal zeolite and a noble metal to produce a reaction mixture comprising an epoxide and acidic byproducts. A portion of the reaction mixture is contacted with an adsorbent so that a treated mixture having a reduced amount of byproducts is produced. The treated mixture is recycled back to the reactor. Including an adsorption step should improve the catalyst productivity and epoxide selectivity.

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