CAJ | 학술논문

为进一步提高对二甲苯液相催化氧化制对苯二甲酸的反应速率和产率，对 MC 催化体系（Co-Mn/ Br）展开了改良研究，考察了对羟基邻苯二甲酰亚胺（NHPI）、甲乙酮（MEK）引发剂和 Zr4＋、Cu2＋金属离子助剂对 MC 催化体系性能的影响。结果表明，NHPI 和 MEK 引发剂的添加能进一步提高 MC 催化剂的活性，而 Zr4＋对 MC 催化剂性能的影响不大，Cu2＋对 MC 催化剂催化氧化对二甲苯反应有抑制作用。NHPI 和 Br -双引发剂之间存在协同作用，可以明显提高催化反应活性，降低整个反应体系的温度，是一种有效的 MC 催化剂改良方法。
위진일보제고대이갑분액상최화양화제대분이갑산적반응속솔화산솔，대 MC 최화체계（Co-Mn/ Br）전개료개량연구，고찰료대간기린분이갑선아알（NHPI）、갑을동（MEK）인발제화 Zr4＋、Cu2＋금속리자조제대 MC 최화체계성능적영향。결과표명，NHPI 화 MEK 인발제적첨가능진일보제고 MC 최화제적활성，이 Zr4＋대 MC 최화제성능적영향불대，Cu2＋대 MC 최화제최화양화대이갑분반응유억제작용。NHPI 화 Br -쌍인발제지간존재협동작용，가이명현제고최화반응활성，강저정개반응체계적온도，시일충유효적 MC 최화제개량방법。
The influence of initiator and metal ions additives on performance of Co-Mn / Br catalyst system (MC)in selective oxidation of p-xylene(PX)to terephthalic acid(PTA)was investigated for improve-ment of reaction rate. The results show that the introduction of N-hydroxyphthalimides(NHPI)and buta-none(MEK)into MC catalyst as the second initiator improves the activity of the catalyst,while Zr4 + has little impact on activity,Cu2 + has adverse effect on activity. Comparing with traditional MC catalytic sys-tem,the dual initiators’catalyst,containing NHPI and Br - ,shows better performance of higher catalytic activity at low reaction temperature.