期刊文献+

Dawson型磷钨酸的电化学性能及其催化合成己二酸 被引量:7

Electrochemical Properties of Phosphotungstic Acid with Dawson Structure and Its Catalytic Performance for the Synthesis of Adipic Acid
下载PDF
导出
摘要 制备了Dawson结构磷钨酸(H6P2W18O62.13H2O)催化剂,并通过UV-Vis及电化学方法分别对其结构和电化学性能进行了表征;以微波辐射促进30%(w)H2O2氧化环己酮制备己二酸为探针反应,考察了该催化剂的性能。通过正交实验和单因次实验探讨了反应条件对催化反应的影响,最适宜的反应条件为:n(环己酮):n(H2O2):n(草酸):n(催化剂)=100:500:3.0:0.25、反应温度100℃、微波辐射功率400 W、反应时间3.5 h,在该反应条件下,己二酸收率达91.78%。当催化剂重复使用5次后,收率仍可达62.50%。相比常规加热,微波辐射加热具有操作简便、反应时间短、收率高和环境友好等优点。 Phosphotungstic acid(H6P2W18O62·13H2O) with Dawson structure was prepared and characterized by means of UV-Vis and electrochemical methods. The synthesis of adipic acid from cyclohexanone(C6HmO) and 30%(w) H2O2 under microwave irradiation was carried out as a probe to study the catalytic activity of the phosphotungstic acid. The effects of the reaction conditions on the catalytic reaction were investigated by orthogonal experiments. The results show that under the optimal conditions of n(C6H100) :n(H2O2) : n(H2C204·2H20) : n(H6P2W18062·13H20) 100 : 500 : 3.0 : 0.25, the reaction temperature 100℃, the microwave power 400 W and the reaction time 3.5 h, the yield of adipic acid could reach 91.78%. The catalyst could be reused for 5 times and the yield of adipic acid was still above 62.50%. Compared with conventional heating methods, microwave irradiation in the synthesis possessed the advantages of simpler operation, shorter reaction time, higher yield and environmental friendliness.
出处 《石油化工》 CAS CSCD 北大核心 2012年第6期694-698,共5页 Petrochemical Technology
基金 国家自然科学基金项目(21161009) 江西省自然科学基金项目(20114BAB213002) 江西省教育厅科技资助项目(GJJ10626,GJJ11613) 九江学院质量工程项目(10XSCXXSY48,10XSCXXSY52)
关键词 微波辐射 己二酸 草酸 环己酮 过氧化氢 磷钨酸催化剂 microwave irradiation adipic acid oxalic acid cyclohexanone hydrogenperoxide phosphotungstic acid catalyst
  • 相关文献

参考文献14

二级参考文献185

共引文献76

同被引文献73

  • 1刘蓉,王铁峰,刘畅,金涌.高选择性和稳定性的CsPW/Nb_2O_5催化剂用于甘油脱水制备丙烯醛(英文)[J].催化学报,2013,34(12):2174-2182. 被引量:8
  • 2纪明慧,李华明,舒火明,李青优,张文丽.磷钨酸催化环己酮氧化合成己二酸[J].海南师范学院学报(自然科学版),2005,18(3):248-250. 被引量:12
  • 3张敏,魏俊发,白银娟,高勇,吴亚,苗延青,史真.用双氧水绿色氧化环己酮合成己二酸的研究[J].有机化学,2006,26(2):207-210. 被引量:41
  • 4曹小华,黎先财,赵文杰,徐常龙,陶春元.H_3PW_6Mo_6O_(40)·nH_2O催化过氧化氢清洁氧化环己酮合成己二酸[J].中国钨业,2006,21(4):34-37. 被引量:10
  • 5Kozhevnikov I V.精细化学品的合成:多酸化合物及其催化[M].唐培,李祥高,王世荣,译.北京:化学工业出版社,2005:159—174.
  • 6Heravi M M,Sadjadi S.Recent Developments in Use of He-teropolyacids,Their Salts and Polyoxometalates in OrganicSynthesis[J].J Iran Chem Soc,2009,6(1):1-54.
  • 7Li Guixian,Ding Yong,Wang Jianming,et al.New Progressof Keggin and Wells-Dawson Type Polyoxometalates CatalyzeAcid and Oxidative Reactions[J].J Mol Cata A:Chem,2007,262(1/2):67-76.
  • 8Sambetha J E,Romanellia G,Autinob J C,et al.A Theoreti-cal-Experimental Study of Wells-Dawson Phosphotungstic He-teropolyacid:An Explanation of the Pseudoliquid or Surface-Type Behaviour[J].Appl Catal,A,2010,378(1):114-118.
  • 9Sun Huaying,Zhang Yonghui,Guo Fengfeng,et al.Regiose-lective Oxyalkylation of Vinylarenes Catalyzed by Diatomite-Supported Manganese Oxide Nanoparticles[J].J Org Chem,2012,77(7):3563-3569.
  • 10Liao Xiangjun,Raghavan G S V,Yaylayan V A.A NovelWay to Prepare n-Butylparaben Under Microwave Irradiation[J].Tetrahedron Lett,2002,43(1):45-48.

引证文献7

二级引证文献35

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部