1. A continuously operated process for the purification by distillation of the 1,2-propylene glycol formed as by-product in the synthesis of propylene oxide, wherein the mixture formed in the synthesis which contains the 1,2-propylene glycol is separated in a dividing wall column into low-, ...
Preferably, the second metal and iridium are deposited on activated carbon as support material. In a preferred aspect of the present invention, vapor phase carbonylation process is useful for the preparation of a mixture thereof acetate, or methyl acetate.ゾエラー,ジョセフ ロバート...