【摘要】 以间苯二甲酸为起始原料,在催化剂铜和助剂镁作用下,以空气中的分子氧作氧化剂,通过液相催化氧化继而水解制得间苯二酚。通过系列实验考察了温度、催化剂及助剂用量、空气流量、搅拌强度、水解条件等因素对反应的影响,确定了反应条件:反应温度250℃,催化剂用量7%,助剂用量7%,空气流量0.2L/min,搅拌强度200r/min,水解温度230℃,水解时间2h。在此条件下间苯二甲酸转化率32.3%,间苯二酚收率18.9%。更多还原

【Abstract】 Resorcinol was prepared from isophthalic acid through liquid-phase catalytic oxidation and subsequent hydrolysis using oxygen in the air as oxidizing agent in the presence of catalyst copper and promoter manganese.Influences of factors such as reaction temperature,amount of catalyst and promoter,air flow rate,stirring velocity and hydrolytic conditions on the reactions were investigated.The optimal reaction conditions were obtained as follow: reaction temperature 250℃,amount of catalyst Cu 7%,amount of promoter Mg 7%,air flow rate 0.2L/min,stirring velocity 200 r/min and hydrolysis for 2 h in temperature 230℃.Under the optimal conditions conversion of isophthalic acid was 32.3%,and yield of resorcinol was18.9%.更多还原