C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 69/96 (2006.01) C07C 68/00 (2006.01)
Patent
CA 2122228
Process for preparing dialkyl carbonates A b s t r a c t Dialkyl carbonates can be prepared by reaction of carbon monoxide with alkyl nitrites in a continuous gas-phase reaction using a platinum metal catalyst on a metal phosphate support and adding hydrogen halide stepwise or continuously during the course of the reaction in almost quantitative selectivity; the corresponding dialkyl oxalates are formed in such small amounts that in most cases they cannot be detected.
Jentsch Joerg-Dietrich
Klausener Alexander
Landscheidt Heinz
Wolters Erich
Zirngiebl Eberhard
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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