A small quantity of acetone in feed material is advantageous to the increase of the catalyst activity, selectivity of MIBK and DIBK, but excess acetone will make against the synthesis reaction process.

• 反应物相中少量丙酮的存在有利于催化剂活性、MIBK和DIBK选择性的提高；但过量丙酮的存在对合成反应不利.