The main reason for the deactivation is that the catalysts react directly with methyl formate produced to form alkali formates (sodium formate and potassium formate) and diemthyl ether.

• 导致催化剂活性降低的主要原因是甲醇钠(甲醇钾)可以直接与产物甲酸甲酯反应形成甲酸钠(甲酸钾)和二甲醚。