Process for the preparation of dialkyl carbonates

Details Process for the preparation of dialkyl carbonates Process for the preparation of dialkyl carbonates

1993-02-26

1994-06-07

Dees, Jose G.

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

Organic compounds

Carbonate esters

558277, C07C 6996

Patent

active

053191242

ABSTRACT:
Dialkyl carbonates can be prepared by the reaction of carbon monoxide with alkyl nitrites in a continuous gas phase reaction, using a platinum metal catalyst on an amorphous alumosilicate having a content of 30-80 atom% Al, based on the sum of Al and Si, as a support, which catalyst may optionally comprise additional material of a compound of antimony, bismuth, aluminium, copper, vanadium, niobium, tantalum, tin, iron, cobalt, nickel or a mixture of a plurality of these, and hydrogen halide being added in the course of the reaction intermittently or continuously. In this reaction, the dialkyl carbonates are formed with almost quantitative selectivity; the corresponding dialkyl oxalates cannot be detected in most cases.

REFERENCES:
patent: 4879401 (1989-11-01), Doumaux, Jr. et al.
patent: 5235087 (1993-08-01), Klausener et al.
Chin. Sci. Bull 34 (1989), 875-876.
Platinum Metals Review 34 (1990), 178-180.

Affiliated with

Also associated with

Rating

Process for the preparation of dialkyl carbonates does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of dialkyl carbonates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of dialkyl carbonates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-793973