Ethene hydroformylation on Co/SiO2 catalysts

T. Kainulainen, Marita Niemelä, A. Krause

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

The results from ethene hydroformylation at 173°C showed that a Co(acac)3/SiO2 catalyst prepared from Co(acac)3 precursor by gas‐phase deposition was three times as active as a catalyst prepared by impregnation from cobalt nitrate, but oxo‐selectivities were similar. The high propanal selectivities on the Co(acac)3/SiO2 seem to be related to the presence of highly dispersed active sites favouring CO insertion. As dispersion is decreased from 23 to 8% due to increasing metal content (from 5 to 16 wt%), oxo‐selectivity decreased from 39 to 25%. The activity of Co(acac)3/SiO2 remained unchanged during 68 h on stream. The gas‐phase deposition technique described here is a promising method for the preparation of active, selective and stable heterogeneous hydroformylation catalysts.
Original languageEnglish
Pages (from-to)97-101
JournalCatalysis Letters
Volume53
Issue number1-2
DOIs
Publication statusPublished - 1998
MoE publication typeA1 Journal article-refereed

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Hydroformylation
Catalysts
Carbon Monoxide
Impregnation
Nitrates
Cobalt
Metals
ethylene

Cite this

Kainulainen, T., Niemelä, M., & Krause, A. (1998). Ethene hydroformylation on Co/SiO2 catalysts. Catalysis Letters, 53(1-2), 97-101. https://doi.org/10.1023/A:1019053805618
Kainulainen, T. ; Niemelä, Marita ; Krause, A. / Ethene hydroformylation on Co/SiO2 catalysts. In: Catalysis Letters. 1998 ; Vol. 53, No. 1-2. pp. 97-101.
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Kainulainen, T, Niemelä, M & Krause, A 1998, 'Ethene hydroformylation on Co/SiO2 catalysts', Catalysis Letters, vol. 53, no. 1-2, pp. 97-101. https://doi.org/10.1023/A:1019053805618

Ethene hydroformylation on Co/SiO2 catalysts. / Kainulainen, T.; Niemelä, Marita; Krause, A.

In: Catalysis Letters, Vol. 53, No. 1-2, 1998, p. 97-101.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Kainulainen, T.

AU - Niemelä, Marita

AU - Krause, A.

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AB - The results from ethene hydroformylation at 173°C showed that a Co(acac)3/SiO2 catalyst prepared from Co(acac)3 precursor by gas‐phase deposition was three times as active as a catalyst prepared by impregnation from cobalt nitrate, but oxo‐selectivities were similar. The high propanal selectivities on the Co(acac)3/SiO2 seem to be related to the presence of highly dispersed active sites favouring CO insertion. As dispersion is decreased from 23 to 8% due to increasing metal content (from 5 to 16 wt%), oxo‐selectivity decreased from 39 to 25%. The activity of Co(acac)3/SiO2 remained unchanged during 68 h on stream. The gas‐phase deposition technique described here is a promising method for the preparation of active, selective and stable heterogeneous hydroformylation catalysts.

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