WO_(3)/MCM-41催化合成己二酸  

Catalytic Synthesis of Adipic Acid on MCM-41 Supported Tungsten Trioxide

作　　者：罗宇进 田雨欣 吴雨婷 余琼 徐常龙[1] Luo Yujin;Tian Yuxin;Wu Yuting;Yu Qiong;Xu Changlong(College of Chemistry and Chemical Engineering,Jiujiang University,Jiujiang 332005,China)

机构地区：[1]九江学院化学与环境工程学院,江西九江332005

出　　处：《广东化工》2021年第17期22-24,共3页Guangdong Chemical Industry

基　　金：国家自然科学基金(21161009);江西省教育厅科技项目(GJJ180892);2019年国家级创新创业实践项目(201911843018)。

摘　　要：以MCM-41为载体,负载活性组分WO_(3),自制催化剂WO_(3)/MCM-41,并采用XRD、SEM、EDX对催化剂进行表征,并用于催化氧化环己酮合成己二酸,考察了其性能,通过正交试验探讨30%H_(2)O_(2)用量、反应温度、反应时间及催化剂的重复使用性能。实验结果表明:自制催化剂较优负载率为40%,优化合成条件为:w(催化剂)=8.2%(基于环己酮质量)、环己酮︰30%H_(2)O_(2)=100︰500、反应时间为5 h、反应温度115℃,在此条件下,己二酸收率为62.1%。且催化剂重复使用5次后,产物收率依旧达到59.8%,表明WO_(3)/MCM-41具有良好的重复使用性能,是易回收、绿色环保及高效的催化剂。Intended to MCM-41 as a carrier,carrying active components WO_(3),Homemade catalyst WO_(3)/MCM-41.Catalytic 30%H_(2)O_(2) oxidation of cyclohexanone to adipic acid.The catalyst was characterized by XRD,SEM and EDS.The performance of the catalyst WO_(3)/MCM-41 was investigated,and the amount of 30%H_(2)O_(2),reaction temperature,reaction time and reusable performance of the catalyst.The results showed that the self-made catalyst WO_(3)/MCM-41 was optimized,The optimum loading rate of the catalyst is 40%.W(catalyst)=8.2%(based on cyclohexanone mass),n(cyclohexanone)︰n(30%H_(2)O_(2))=100︰500,the reaction temperature is 110 C,Under these conditions,the yield of adipic acid was 62.1%.After the catalyst was reused for 5 times,the yield of the product was still 59.8%.Is easy to recycle,green and efficient catalyst.

关 键 词：己二酸 WO_(3)/MCM-41 30%H_(2)O_(2) 绿色合成 

分 类 号：O614[理学—无机化学]