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Preparation of Acetic Acid by Catalytic Rearrangement of Formic Acid Methyl Ester Catalyst System and Method
Preparation of Acetic Acid by Catalytic Rearrangement of Formic Acid Methyl Ester Catalyst System and Method
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机译:甲酸甲酯催化体系的催化重排制备乙酸
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摘要
1. A process for the production of acetic acid by catalytic rearrangement of methyl formate at elevated temperature and elevated pressure in the presence of a metal catalyst, a halogen promoter and carbon monoxide, characterised in that the reaction is carried out in the liquid phase at a temperature of 140 to 300 degrees C and a CO partial pressure of 2 to 250 bar at the reaction temperature by means of a metal catalyst system comprising rhodium, a rhodium salt or a rhodium complex and at least one metal compound of Group VI B in the presence of a halogen promoter but in the absence of ligands of Group V A, the rhodium compound being supplied in an amount of 0.05 to 5 mg atom of rhodium per mole of methyl formate supplied and at an atomic ratio of rhodium : Group VI B metal of 1 : 100 to 10 : 1 and an atomic ratio of rhodium : halogen of 1 : 1000 to 1 : 1.
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