摘要
用等体积浸渍法制备了用于乙烯经乙酰氧化合成乙酸乙烯的Pd Au KAc/SiO2 催化剂 ,对反应条件进行了研究。结果表明 ,适宜的反应温度为 14 0～ 14 2℃ ,进料氧与乙酸的摩尔比分别为 5 %～ 6 % ,11%～ 13% ;对空速、反应压力及活性组分分布、助催化剂、活性组分晶粒大小以及异形化催化剂对反应的影响也进行了研究。
A series of Pd Au KAc/SiO 2 catalysts were prepared by equal volume impregnation method, and were used in synthesis of vinyl acetate through vapor phase acetoxylation of ethylene. The advantageous reaction conditions were found as follows: reaction temperature 140142 ℃, concentrations of O 2 and HAc in feed gas are 5%6%, 11%13% respectively. The influences of various conditions on the catalytic performance, such as pressure, space velocity, distribution of active components, promotor and abnormally shaped catalysts were studied also.
出处
《精细石油化工》
CAS
CSCD
北大核心
2002年第6期14-17,共4页
Speciality Petrochemicals
基金
中石化科研项目 (批准号 40 10 2 4)
