Vapor-phase tertiary butylation of phenol over mesoporous gallosilicate molecular sieves

被引：31

作者：

Sakthivel, A ^{[1
]}

Selvam, P ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Powai 400076, Mumbai, India

来源：

CATALYSIS LETTERS | 2002年 / 84卷 / 1-2期

关键词：

H-GaMCM-41; tertiary butylation; acid catalysts; para-tertiary butyl phenol;

D O I：

10.1023/A:1021016415765

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：

Isomorphously substituted GaMCM-41 molecular sieves with different Si:Ga ratio were synthesized and characterized systematically by various analytical and spectroscopic techniques. Temperature-programmed desorption of ammonia was used to identify the nature of acidic sites. For the first time, the vapor-phase tertiary butylation of phenol reaction was carried out over protonated GaMCM-41. The catalysts showed higher (phenol) conversion and good (para-tertiary butyl phenol) selectivity over the Al- and Fe-analogs of MCM-41. Further, the gallosilicates showed good stability both before and after the reaction compared to the aluminosilicates or ferrisilicates.

引用

页码：37 / 43

页数：7

共 29 条

[1] Acid sites distribution and their influence on the catalytic properties of mesoporous H-AlMCM-41 and H-FeMCM-41 [J].

Badamali, SK ;

Sakthivel, A ;

Selvam, P .

ADSORPTION SCIENCE AND TECHNOLOGY, 2000, :553-557

[2] Tertiary butylation of phenol over mesoporous H-FeMCM-41 [J].

Badamali, SK ;

Sakthivel, A ;

Selvam, P .

CATALYSIS LETTERS, 2000, 65 (1-3) :153-157

[3] A NEW FAMILY OF MESOPOROUS MOLECULAR-SIEVES PREPARED WITH LIQUID-CRYSTAL TEMPLATES [J].

BECK, JS ;

VARTULI, JC ;

ROTH, WJ ;

LEONOWICZ, ME ;

KRESGE, CT ;

SCHMITT, KD ;

CHU, CTW ;

OLSON, DH ;

SHEPPARD, EW ;

MCCULLEN, SB ;

HIGGINS, JB ;

SCHLENKER, JL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (27) :10834-10843

[4] ALKYLATION OF PHENOL WITH MTBE AND OTHER TERT-BUTYL ETHERS - CATION-EXCHANGE RESINS AS CATALYSTS [J].

CHANDRA, KG ;

SHARMA, MM .

CATALYSIS LETTERS, 1993, 19 (04) :309-317

[5]

Chang C.D., 1994, U.S. Patent, Patent No. [5,288,927, 5288927]

[6] Synthesis and characterization of the gallosilicate mesoporous molecular sieve MCM-41 [J].

Cheng, CF ;

He, HY ;

Zhou, WZ ;

Klinowski, J ;

Goncalves, JAS ;

Gladden, LF .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (01) :390-396

[7] The unit cell of the gallosilicate mesoporous molecular sieve [Si,Ga]-MCM-41 is significantly smaller than in the purely siliceous [Si]-MCM-41 [J].

Cheng, CF ;

Alba, MD ;

Klinowski, J .

CHEMICAL PHYSICS LETTERS, 1996, 250 (3-4) :328-334

[8]

CORMA A, 1988, J CHEM RES-S, P40

[9] Incorporation of gallium into zeolites: Syntheses, properties and catalytic application [J].

Fricke, R ;

Kosslick, H ;

Lischke, G ;

Richter, M .

CHEMICAL REVIEWS, 2000, 100 (06) :2303-2405

[10]

KAGAMI K, 1975, Patent No. 75112325

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