ISSN:
0941-1216
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Investigation on the Kinetics of Diffusion of Ethene on 4A ZeolitesThe kinetics of diffusion of ethene on 4A zeolites was examined. Conclusions on the transport mechanism were obtained by the loading dependence on the diffusion coefficients. Contrary to propene and the n-butene isomers, ethene can cross the windows to the cavities blocked up by Na+ ions in the NaA and Me0,22+Na0,8A zeolites (Me = Mg, Ca, Zn, Ba) by a translatory jump motion. In NaKA zeolites - by reason of additional blocking up of windows with K+ ions - the ethene molecules overcome the barrier only through the ethene/Na+(1) addition complexes.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/prac.19943360309
