THE INTERACTION OF PHOSPHORIC-ACID WITH ALUMINAS - COMPOSITION AND PROPERTIES OF THE PRODUCTS

Authors
SHMACHKOVA VP KOTSARENKO NS MASTIKHIN VM
Citation
Vp. Shmachkova et al., THE INTERACTION OF PHOSPHORIC-ACID WITH ALUMINAS - COMPOSITION AND PROPERTIES OF THE PRODUCTS, Kinetics and catalysis, 35(2), 1994, pp. 286-291
Citations number
18
Categorie Soggetti
Chemistry Physical
Journal title
Kinetics and catalysis → ACNP
ISSN journal
00231584
Volume
35
Issue
2
Year of publication
1994
Pages
286 - 291
Database
ISI
SICI code
0023-1584(1994)35:2<286:TIOPWA>2.0.ZU;2-A
Abstract
The interaction of phosphoric acid with gamma- and delta-Al2O3 at 20 - 500-degrees-C is studied by high-resolution solid-state Al-27 and P-3 1 NMR. Surface and bulk phosphates including acidic aluminum phosphate s are formed; in the presence of aluminas, decomposition of acidic pho sphates proceeds at lower temperatures. The catalytic activity of phos phated samples in isobutanol dehydration is nearly the same as that of aluminum phoshate with P/Al less-than-or-equal-to 1 prepared by preci pitation, though the former catalysts show no activity in 1-butene iso merization.