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http://nopr.niscpr.res.in/handle/123456789/21048| Title: | Isomorphous substitution of chromium in AlPO-11 and AlPO-5 framework and their applications in the aromatization of 3-carene |
| Authors: | Eswaramoorthy, M Mohan, V Krishnasamy, V |
| Issue Date: | Jun-2001 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | CrAPO-11 and CrAPO-5 have been synthesized hydrothermally using aluminium isopropoxide, H3PO4, Cr(NO3)3 and di-n-propylamine for CrAPO-11 and triethylamine for CrAPO-5. The isomorphous substitution of Cr in AlPO-11 and AlPO-5 framework has been confirmed by XRD, SEM, DRS. MAS NMR, TGA, pore-volume and chemical analysis. Formation of cymenes (p-cymene and m-cymene) from 3-carene is higher over reduced than that over oxidized catalysts. The higher plm (p-cymene/ m-cymene) ratio, observed over reduced than over oxidized catalysts shows that p-cymene does not isomerise to m-cymene. The poisoning effects of pyridine and 4-methylquinoline are the same over large pore CrAPO-5 but different over medium pore CrAPO-11. |
| Page(s): | 605-609 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.40A(06) [June 2001] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 40A(6) 605-609.pdf | 997.4 kB | Adobe PDF | View/Open |
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