Vapour-phase Beckmann rearrangement of cyclohexanone-oxime over Al-MCM-41 type mesotructured catalysts

被引：26

作者：

Forni, L ^{[1
]}

Tosi, C ^{[1
]}

Fornasari, G ^{[1
]}

Trifirò, F ^{[1
]}

Vaccari, A ^{[1
]}

Nagy, JB ^{[1
]}

机构：

[1] Univ Bologna, Dipartimento Chim Ind & Mat, I-40136 Bologna, Italy

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2004年 / 221卷 / 1-2期

关键词：

Al-MCM-41; Si/Al ratio; epsilon-caprolactam; vapour phase; polar diluents;

D O I：

10.1016/j.molcata.2004.06.016

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：

Al-MCM-41 type catalysts with different Al content (Si/Al = 10, 20,40 as atomic ratio) have been prepared using cetyltrimethylammonium chloride as the organic surfactant and characterised by XRD, NMR, TGA, N-2 sorption, FT-IR, TPD and pyridine adsorption. Different diluents such as methanol, ethanol, isopropanol and water have been used in different compositions for cyclohexanone-oxime (CEOX) selective conversion to epsilon-caprolactam over these ordered mesostructures, revealing the positive effect of polar diluents and above all of ethanol on conversion and epsilon-caprolactam selectivity. The increase of the weight hourly space velocity (WHSV) decreases the catalyst lifetime, while a better catalytic activity is obtained for a lower SUM ratio. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：97 / 103

页数：7

共 34 条

[1]

[Anonymous], [No title captured]

[2] BECKMAN REARRANGEMENT OF CYCLOHEXANONE-OXIME ON HNAY ZEOLITES - KINETIC AND SPECTROSCOPIC STUDIES [J].

AUCEJO, A ;

BURGUET, MC ;

CORMA, A ;

FORNES, V .

APPLIED CATALYSIS, 1986, 22 (02) :187-200

[3] Synthesis and characterization of boron hydrotalcite-like compounds as catalyst for gas-phase transposition of cyclohexanone-oxime [J].

Bechara, R ;

D'Huysser, A ;

Fournier, M ;

Forni, L ;

Fornasari, G ;

Trifirò, F ;

Vaccari, A .

CATALYSIS LETTERS, 2002, 82 (1-2) :59-67

[4] NEW TRIBORATE-PILLARED HYDROTALCITES [J].

BHATTACHARYYA, A ;

HALL, DB .

INORGANIC CHEMISTRY, 1992, 31 (18) :3869-3870

[5] Synthesis and characterization of mesostructured materials [J].

Biz, S ;

Occelli, ML .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1998, 40 (03) :329-407

[6]

Borade RB, 1997, CHEM INDUST, V69, P431

[7] Active sites for the liquid-phase Beckmann rearrangement of cyclohexanone, acetophenone and cyclododecanone oximes, catalyzed by beta zeolites [J].

Camblor, MA ;

Corma, A ;

Garcia, H ;

Semmer-Herledan, V ;

Valencia, S .

JOURNAL OF CATALYSIS, 1998, 177 (02) :267-272

[8] Beckmann rearrangement of cyclohexanone oxime over mesoporous Si-MCM-41 and Al-MCM-41 molecular sieves [J].

Chaudhari, K ;

Bal, R ;

Chandwadkar, AJ ;

Sivasanker, S .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2002, 177 (02) :247-253

[9] STUDIES ON MESOPOROUS MATERIALS .1. SYNTHESIS AND CHARACTERIZATION OF MCM-41 [J].

CHEN, CY ;

LI, HX ;

DAVIS, ME .

MICROPOROUS MATERIALS, 1993, 2 (01) :17-26

[10] Solvent effects in the liquid phase Beckmann rearrangement of 4-hydroxyacetophenone oxime over H-Beta catalyst [J].

Chung, YM ;

Rhee, HK .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2000, 159 (02) :389-396

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