Cobalt-salen intercalated montmorillonite catalyst for air oxidation of p-cresol under mild conditions

TitleCobalt-salen intercalated montmorillonite catalyst for air oxidation of p-cresol under mild conditions
Publication TypeJournal Article
Year of Publication2007
AuthorsRode, CV, Kshirsagar, VS, Nadgeri, JM, Patil, KR
JournalIndustrial & Engineering Chemistry Research
Volume46
Issue25
Pagination8413-8419
Date PublishedDEC
Type of ArticleArticle, Proceedings Paper
ISSN0888-5885
Abstract

Air oxidation of p-cresol under very mild conditions (338 K and ambient pressure) was carried out in a semibatch reactor over a solid catalyst developed by intercalating cobalt-salen into the montmorillonite clay. The intercalation of cobalt - salen was done by a simple protocol, and the characterization of the intercalated catalyst was done by XPS, FTIR, and XRD techniques. A total selectivity >= 90% to the oxidation products could be achieved with this solid catalyst by eliminating the undesired coupling side products in air oxidation of p-cresol under ambient pressure conditions. Effect of various process parameters on the conversion and selectivity pattern were also studied, and it was found that the selectivity ratio of aldehyde to alcohol could be varied by suitably changing the reaction conditions. This heterogeneous catalyst was found to give a 5-fold higher turnover number than the homogeneous cobalt - salen complex.

DOI10.1021/ie07.00720
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)

2.567

Divison category: 
Catalysis and Inorganic Chemistry