Highly efficient epoxidation of propylene to propylene oxide over TS-1 using urea plus hydrogen peroxide as oxidizing agent

被引：49

作者：

Cheng, Weiguo ^{[1
,2
]}

Wang, Xiangsheng ^{[2
]}

Li, Gang ^{[2
]}

Guo, Xinwen ^{[2
]}

Zhang, Suojiang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100080, Peoples R China

[2] Dalian Univ Technol, Dept Catalysis Chem & Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China

来源：

JOURNAL OF CATALYSIS | 2008年 / 255卷 / 02期

关键词：

epoxidation; propylene; propylene oxide; urea; hydrogen peroxide; titanium silicate-1; electron paramagnetic resonance;

D O I：

10.1016/j.jcat.2008.02.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We compared the efficacies of urea + hydrogen peroxide (U+HP) and hydrogen peroxide (HP) as an oxidizing agent in the epoxidation of propylene catalyzed by a titanium silicate-1 (TS-1) molecular sieve. The TS-1 catalyst exhibited good performance and stability in the TS-1/(U+HP) system. EPR results showed that more active Ti-superoxo species led to better performance of TS-1 in the TS-1/(U+HP) system than in the TS-1/HP system. (c) 2008 Elsevier Inc. All rights reserved.

引用

页码：343 / 346

页数：4

共 23 条

[1] Chemo- and diastereoselective epoxidation of chiral allylic alcohols with the urea hydrogen peroxide adduct, catalyzed by titanium silicate 1 [J].

Adam, W ;

Kumar, R ;

Reddy, TI ;

Renz, M .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1996, 35 (08) :880-882

[2]

ANASTAS PT, 1999, NATURE, V398, P33

[3] Reactive oxygen species in titanosilicates TS-1 and TiMCM-41:: An in situ EPR spectroscopic study [J].

Chaudhari, K ;

Srinivas, D ;

Ratnasamy, P .

JOURNAL OF CATALYSIS, 2001, 203 (01) :25-32

[4] Characterization and catalytic activity of hydrothermally treated TS-1/SiO2 in propylene epoxidation [J].

Cheng, WG ;

Wang, XS ;

Li, G ;

Guo, XW ;

Du, BJ .

CATALYSIS LETTERS, 2004, 95 (3-4) :185-190

[5] Copper-catalyzed propylene epoxidation by molecular oxygen:: Superior catalytic performances of halogen-free K+-modified CuOx/SBA-15 [J].

Chu, Hui ;

Yang, Lujuan ;

Zhang, Qinghong ;

Wang, Ye .

JOURNAL OF CATALYSIS, 2006, 241 (0 1) :225-228

[6] SYNTHESIS OF PROPYLENE-OXIDE FROM PROPYLENE AND HYDROGEN-PEROXIDE CATALYZED BY TITANIUM SILICALITE [J].

CLERICI, MG ;

BELLUSSI, G ;

ROMANO, U .

JOURNAL OF CATALYSIS, 1991, 129 (01) :159-167

[7]

FORD B, 2006, CHEM MARK REP, V269, P24

[8]

GONSALVES AMDR, 1991, J CHEM RES-S, P208

[9] Highly selective epoxidation of olefinic compounds over TS-1 and TS-2 redox molecular sieves using anhydrous urea-hydrogen peroxide as oxidizing agent [J].

Laha, SC ;

Kumar, R .

JOURNAL OF CATALYSIS, 2002, 208 (02) :339-344

[10] Selective epoxidation of styrene to styrene oxide over TS-1 using urea-hydrogen peroxide as oxidizing agent [J].

Laha, SC ;

Kumar, R .

JOURNAL OF CATALYSIS, 2001, 204 (01) :64-70

← 1 2 3 →