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Oxidation of 2,3,6-Trimethylphenol over Ti- and V-Containing Mesoporous Mesophase Catalysts: Structure–Activity/Selectivity Correlation Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal Journal of Catalysis
ISSN: 0021-9517 , E-ISSN: 1090-2694
Output data Year: 2001, Volume: 202, Number: 1, Pages: 110-117 Pages count : 8 DOI: 10.1006/jcat.2001.3264
Tags 2,3,5-Trimethyl-1,4-benzoquinone, 2,3,6-Trimethylphenol, H2O2, Mesoporous mesophase catalysts, Oxidation, TBHP, Titanium, Vanadium
Authors Trukhan N.N. 1 , Romannikov V.N. 1 , Paukshtis E.A. 1 , Shmakov A.N. 1 , Kholdeeva O.A. 1
Affiliations
1 Boreskov Institute of Catalysis, Acad. Lavrentiev Av., 5, Novosibirsk 630090, Russia

Funding (1)

1 Russian Foundation for Basic Research 01-03-32852

Abstract: The oxidation of 2,3,6-trimethylphenol (TMP) has been carried out over well-organized Ti- and V-containing mesoporous mesophase silicate catalysts (Ti- and V-MMM) using hydrogen peroxide and tert-butyl hydroperoxide (TBHP) as oxidants. Vanadium leaching was observed in the V-MMM/H2O2 and V-MMM/TBHP systems, whereas no titanium leaching occurred for Ti-MMM with both oxidants. TMP oxidation runs on a surface of Ti-MMM catalyst, producing 2,3,5-trimethyl-1,4-benzoquinone (TMBQ) with selectivity as high as 86% at 100% TMP conversion. Titanium content in Ti-MMM determines the state of the active catalytic site and influences the structure regularity, thus affecting the catalytic behavior. The catalysts with titanium loading in the 1.5–2 wt% range show the highest activity and selectivity. Some loss of catalytic properties observed after recycling may occur due to collapsing of the catalyst structure caused by water. The lower the water concentration in the reaction mixture, the more stable the catalyst.
Cite: Trukhan N.N. , Romannikov V.N. , Paukshtis E.A. , Shmakov A.N. , Kholdeeva O.A.
Oxidation of 2,3,6-Trimethylphenol over Ti- and V-Containing Mesoporous Mesophase Catalysts: Structure–Activity/Selectivity Correlation
Journal of Catalysis. 2001. V.202. N1. P.110-117. DOI: 10.1006/jcat.2001.3264 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Jan 24, 2001
Accepted: Apr 27, 2001
Published print: Aug 15, 2001
Published online: May 25, 2002
Identifiers:
publication_identifier.wos_identifier_type WOS:000170493800011
publication_identifier.scopus_identifier_type 2-s2.0-57249114436
publication_identifier.rinz_identifier_type 13364668
publication_identifier.accession_number_identifier_type 2001:569336
publication_identifier.chemical_accession_number_identifier_type 135:332699
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