Synthesis of n-Butylamine from Butyronitrile on Ni/SiO2: Effect of Solvent
The effect of solvent on Ni(10.5%)/SiO2 activity and selectivity for the liquid-phase conversion of butyronitrile to butylamines was studied using ethanol, benzene, toluene and cyclohexane as solvents. In ethanol, a protic solvent, the Ni catalyst yielded n-butylamine (84%) and dibutylamine. Replaci...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2014 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/31082 |
| Acceso en línea: | http://hdl.handle.net/11336/31082 |
| Access Level: | acceso abierto |
| Palabra clave: | BUTYRONITRILE BUTYLAMINES SELECTIVE HYDROGENATION NI CATALYSTS https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 |
| Sumario: | The effect of solvent on Ni(10.5%)/SiO2 activity and selectivity for the liquid-phase conversion of butyronitrile to butylamines was studied using ethanol, benzene, toluene and cyclohexane as solvents. In ethanol, a protic solvent, the Ni catalyst yielded n-butylamine (84%) and dibutylamine. Replacing ethanol by non-polar solvents (benzene, toluene, cyclohexane) caused significant changes in catalyst activity and selectivity. In particular, the selectivity to n-butylamine decreased at the expense of dibutylamine and tributylamine formation. The solvent effect on the catalyst performance was interpreted by considering: i) the solvent-catalyst interaction strength that was investigated by calorimetry, and temperature-programmed desorption of solvents characterized by mass spectrometry; ii) the solvent polarity and its ability for H-bond formation with n-butylamine. |
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