Process for the hydrotreatment of a mixture of C4 to C8 hydrocarbon-based compounds, rich in olefins and monoaromatic compounds, by hydrogenation in the presence of a solid catalyst, characterized in that an ammonia precursor is introduced into the charge of hydrocarbon-based compounds and in that the catalyst comprises at least one transition metal supported on at least one refractory oxide.

 
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> Method of preparing an insoluble polymer film on a substrate from a soluble polymer containing labile solubilizing groups

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