The isomerization and metathesis of n-butenes IV. Reactions of cis-2-butene over a molybdena-alumina catalysts of varying extents of reduction
The metathesis and isomerization of n-butenes on a molybdena-alumina (8 wt% Mo) catalyst of different extents of reduction were investigated using the microcatalytic pulse technique. The maxima in concentration which appeared at trans-2-butene-d 4 formed from the reaction of equimolar mixtures of ci...
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| Published in | Journal of molecular catalysis Vol. 15; no. 1; pp. 173 - 185 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
01.04.1982
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| Online Access | Get full text |
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| Summary: | The metathesis and isomerization of n-butenes on a molybdena-alumina (8 wt% Mo) catalyst of different extents of reduction were investigated using the microcatalytic pulse technique. The maxima in concentration which appeared at
trans-2-butene-d
4 formed from the reaction of equimolar mixtures of
cis-C
4H
8 and
cis-C
4D
8 provided a measure of the extent of metathesis in the overall isomerization process. The conversion of
cis- to
trans-2-butene
via metathesis was nearly independent of the extent of reduction for all reduced catalysts. Non-metathetic double bond isomerization, including
cis to
trans-interconversion, increased with reduction, but the 1-butene produced was efficiently converted to propene by cross metathesis with the
cis-2-butene reactant, especially after the first pulse had been passed. Highest selectivity for a given metathesis reaction between two olefins is obtained for very slightly reduced catalysts. |
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| ISSN: | 0304-5102 |
| DOI: | 10.1016/0304-5102(82)80015-1 |