Effect of SnO2/Al2O3 ratio of Si-based MFI on its acidity and hydrophobicity: application in selective hydroxyalkylation of p-cresol

TitleEffect of SnO2/Al2O3 ratio of Si-based MFI on its acidity and hydrophobicity: application in selective hydroxyalkylation of p-cresol
Publication TypeJournal Article
Year of Publication2014
AuthorsGarade, AC, Malwadkar, AV, Niphadkar, PS, Jha, RKumar, Joshi, PN, Rode, CV
JournalCatalysis Communications
Volume44
Pagination29-34
Date PublishedJAN
Type of ArticleArticle
ISSN1566-7367
KeywordsAl-27 MAS NMR, Hydroxyalkylation, Molecular sieves, p-Cresol, Stannosilicate
Abstract

Silica based MR type molecular sieves with various SnO2/Al2O3 ratios were synthesized from gels having molar compositions SiO2:xSnO(2):yAl(2)O(3):0.23(TPA)(2)O:35H(2)O where 0 <= x <= 0.02 and 0 <= y <= 0.01. Recyclable, Al-free Sn-MFI catalyst showed 31% conversion of formaldehyde with 100% selectivity to 2,2'-methylenebis(4-methylphenol) in hydroxyalkylation of p-cresol with formaldehyde on account of moderate acidity and higher hydrophobicity. (C) 2013 Elsevier B.A. All rights reserved.

DOI10.1016/j.catcom.2013.08.002
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)

3.389

Divison category: 
Catalysis and Inorganic Chemistry
Chemical Engineering & Process Development