乙烯+水->乙醇CH2=CH2+H2O-(300℃,H3PO4催化)->CH3CH2OH 乙醇->乙酸2CH3CH2OH+O2--(Cu)-->2CH3CHO+2H2O2CH3CHO+O2--(Ni)-->2CH3COOH乙醇+乙酸->乙酸乙酯CH3CH2OH+CH3COOH--(浓H2SO4,加热)->CH3C2COOC2H5