We drew a conclusion that in a period of time and special condition,the HAc made by ethylene oxidation will still exist in the market,but it will change from the protagonist to the stooge.

• 得出了乙烯法的冰醋酸虽然在一定时期内和一定的条件下,还将存在于市场之中,但已从主角转变为配角的结论。