Montmorillonite for selective hydroxyalkylation of p-cresol
| Title | Montmorillonite for selective hydroxyalkylation of p-cresol |
| Publication Type | Journal Article |
| Year of Publication | 2009 |
| Authors | Garade, AC, Mate, VR, Rode, CV |
| Journal | Applied Clay Science |
| Volume | 43 |
| Issue | 1 |
| Pagination | 113-117 |
| Date Published | JAN |
| ISSN | 0169-1317 |
| Keywords | Ammonia TPD, Dihydroxydiarylmethane, Hydroxyalkylation, Montmorillonite, Solid acids |
| Abstract | Performances of montmorillonite titanium silicate (TS-1) and dodecatungstophosphoric acid (DTP) were compared for the hydroxyalkylation of p-cresol into dihydroxydiarylmethane (DAM). Ammonia TPD studies of various catalysts showed that an appropriate combination of both strong and weak acid sites of montmorillonite was mainly responsible rather than only the stronger acidity of bulk DTP for its highest catalytic activity for selective hydroxyalkylation of p-cresol to DAM. The selectivity to DAM could be enhanced by adjusting reaction conditions like mole ratio of p-cresol to formaldehyde, reaction temperature, catalyst concentration, solvent and reaction time. (C) 2008 Elsevier B.V. All rights reserved. |
| DOI | 10.1016/j.clay.2008.07.015 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 2.303 |
Divison category:
Chemical Engineering & Process Development