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- W2012505899 abstract "Abstract Non-stoichiometric copper chromite catalysts are active and selective in the synthesis of dimethylalkylamines, dialkylamines or dialkylmethylamine from fatty acids, esters or nitriles. These specific properties result from the association of copper and chromium which increases the metal surface area, hydrogen adsorption, and storage and acidity (especially of strong acid sites). Nevertheless these mixed catalysts, which are more stable than monometallic ones, are modified during the catalytic reaction, as is selectivity. For example ammonia (and/or water) are strong inhibitors and excess hydrogen is necessary to reduce the adsorption of reaction products and the transformation of catalysts. In our study the main intermediate species were identified and selectivity modifications were examined in relation to the surface and bulk physico-chemical properties." @default.
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- W2012505899 date "1993-08-31" @default.
- W2012505899 modified "2023-10-14" @default.
- W2012505899 title "Hydrogenation and methylation of dodecylnitrile in the presence of supported copper-chromium catalystsII: catalytic properties" @default.
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- W2012505899 doi "https://doi.org/10.1016/0926-860x(93)80226-g" @default.
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