| 摘要 |
PROBLEM TO BE SOLVED: To provide a synthetic process for acetic acid by which acetic acid product can efficiently be taken out of a reactional zone utilizing the low volatility thereof. SOLUTION: This method is to produce acetic acid and comprises the following stages, i.e., (a) carbonylating a reactant in a solution containing a homogeneous catalyst capable of manifesting the activity for carbonylation of methanol, DME or a reactive derivative thereof, (b) simultaneously collecting components participating in the reaction at this time, removing mainly unconverted carbon monoxide, hydrogen and an inert gas by stripping off, on the other hand, leaving the remaining components participating in the reaction therein and (c) distilling and recovering the acetic acid product from at least a part of the residual components participating in the reaction simultaneously with the above (b) and refeeding the above residual components thus reduced in the amount of the acetic acid and participating in the reaction to the above carbonylating reaction. |
