Direct oxidation of n-heptane to ester over modified sulfated SnO2 catalysts under mild conditions

被引:28
作者
Cui, Xue [1 ]
Ma, Hongzhu [1 ]
Wang, Bo [1 ]
Chen, Hongwei [1 ]
机构
[1] Shaanxi Normal Univ, Coll Chem & Mat Sci, Inst Energy Chem, Xian 710062, Peoples R China
关键词
sulfated tin oxide catalysts; modified; n-Heptane; catalytic oxidation;
D O I
10.1016/j.jhazmat.2007.01.118
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The direct oxidation of n-heptane to ester using air as the oxidant under mild conditions assisted by sulfated tin oxide (SO42-/SnO2) and Co modified sulfated tin oxide (SO42- /SnO2-Co2O3) prepared by chemical co-precipitation method and characterized by means of SEM, XRD, FT-IR and XPS techniques was studied. From the results it was found that the catalytic activity Of SO42-/SnO2-Co2O3 is higher than that Of SO42-/SnO2 in this target reaction, and two asymmetric esters: diisobutyl phthalate and cyclohexylmethyl tridecyl oxalate that have not been reported in the directly oxidation of n-heptane by traditional method have been obtained. The possible mechanism was also discussed. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:800 / 805
页数:6
相关论文
共 18 条
[1]   Friedel-Crafts acylation of toluene catalyzed by solid superacids [J].
Arata, K ;
Nakamura, H ;
Shouji, M .
APPLIED CATALYSIS A-GENERAL, 2000, 197 (02) :213-219
[2]   Synthesis of solid superacids and their activities for reactions of alkanes [J].
Arata, K ;
Matsuhashi, H ;
Hino, M ;
Nakamura, H .
CATALYSIS TODAY, 2003, 81 (01) :17-30
[3]   Structure-reactivity correlations in sulphated-zirconia catalysts for the isomerisation of α-pinene [J].
Ecormier, MA ;
Wilson, K ;
Lee, AF .
JOURNAL OF CATALYSIS, 2003, 215 (01) :57-65
[4]   Identification of mononitro and dinitro isomers of diphenylmethane by GC-FT-IR and GC-MS techniques [J].
Giumanini, AG ;
Verardo, G ;
Soják, L ;
Kubinec, R ;
Perjéssy, A .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2001, 40 (06) :1449-1453
[6]   Superacids by metal oxides, X:: Reaction of butane catalyzed by sulfated metal oxides, zeolites, or silica aluminas mixed with Pt-ZrO2 [J].
Hino, M ;
Arata, K .
APPLIED CATALYSIS A-GENERAL, 1998, 173 (01) :121-124
[7]   Procedure for and results of simultaneous determination of aromatic hydrocarbons and fatty acid methyl esters in diesel fuels by high performance liquid chromatography [J].
Kaminski, M. ;
Gilgenast, E. ;
Przyjazny, A. ;
Romanik, G. .
JOURNAL OF CHROMATOGRAPHY A, 2006, 1122 (1-2) :153-160
[8]   Catalytic properties of SO42-/Ti-M-O superacids in esterification [J].
Lu, GZ .
APPLIED CATALYSIS A-GENERAL, 1995, 133 (01) :11-18
[9]  
MARQUEZ A, 2005, ENVIRON SCI TECHNOL, V39, P8797
[10]   Preparation of a solid superacid of sulfated tin oxide with acidity higher than that of sulfated zirconia and its applications to aldol condensation and benzoylation [J].
Matsuhashi, H ;
Miyazaki, H ;
Kawamura, Y ;
Nakamura, H ;
Arata, K .
CHEMISTRY OF MATERIALS, 2001, 13 (09) :3038-3042