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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.18 [2011] >
IJCT Vol.18(1) [January 2011] >
| Title: | Role of acidity for the production of carvacrol from carvone over sulfated zircona |
| Authors: | Singh, Baldev
Patial, Jyoti
Sharma, Parveen
Chandra, Suresh
Kaul, Pinki
Maity, Sudip |
| Keywords: | Catalytic activity
Carvone isomerization
Sulfated zircona
XRD
Ammonia - TPD
Kinetic study |
| Issue Date: | Jan-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | A simple and
eco-friendly process for the isomerization of carvone to carvacrol in the presence
of SO42−/ZrO2 catalyst has been described. The
reaction is conducted without solvent at moderate temperature with reaction
times of 1 to 2 h. In most instances, nearly quantitative yield of carvacrol is
obtained without any by-products. The total acidity, different acid
concentration, zircona phases and crystallites size were co-related with the
catalytic activity. Activation energy is found to be 11.317 kJ/mol using 8% SO42−ions modified zircona. The bulk and surface properties
of the prepared catalysts are examined by X-ray powder diffraction, BET surface
area and ammonia-TPD. |
| Page(s): | 21-28 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.18(1) [January 2011]
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