ISSN:
1572-879X
Keywords:
Solid superacids
;
zirconium oxide
;
temperature programmed desorption
;
sulfated zirconia
;
butane isomerization
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract A sulfated oxide of zirconium, iron and manganese is prepared and shown to isomerizen-butane to isobutane at 35°C with rates approximately 2–3 orders of magnitude greater than sulfated zirconia as claimed by workers at Sun Refining and Marketing Company. Temperature programmed desorption of benzene is used to investigate the acidity of this remarkable catalyst. Adsorbed benzene is oxidized to CO2 by the triply promoted oxide catalyst; CO2, SO2 and O2 are found to desorb at 525, 575 and 560°C, respectively. Sulfated zirconia does not adsorb benzene in a similar manner. The results from the temperature programmed desorption of benzene cannot be correlated with then-butane isomerization activity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00815411
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