Method for preparing a dialkyl carbonate, and its use in the...

Details Method for preparing a dialkyl carbonate, and its use in the... Method for preparing a dialkyl carbonate, and its use in the...

2005-10-12

2009-11-24

Shameem, Golam M. M. (Department: 1626)

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

Organic compounds

Carbonate esters

Reexamination Certificate

active

07622602

ABSTRACT:
A method of making a dialkyl carbonate comprises: reacting, in a reactor comprising tantalum, an alkanol, oxygen, and carbon monoxide, in the presence of a catalyst. The reaction occurs in a mixture comprising a liquid phase wherein the liquid phase comprises about 4 to about 12 weight percent water based on the total weight of the liquid phase.

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