Stephan Verdier

Vanillin and/or ethylvanillin, process for their preparations and use thereof

Catalyst/catalyst support compositions having high reducibility and comprising a nanometric cerium oxide deposited onto a support substrate

Composition preventing the polymerization of ethylenically unsaturated monomers and the removal thereof before polymerization

Method for producing amines

Catalyst compositions based on nanoparticles of a zirconium oxide, a titanium oxide or a mixed zirconium/titanium oxide deposited onto an alumina or aluminum oxyhydroxide support therefor

Catalyst compositions based on nanoparticles of a zirconium oxide, a titanium oxide or a mixed zirconium/titanium oxide deposited onto a silica support therefor

High specific surface/reducibility catalyst/catalyst support compositions comprising oxides of zirconium, cerium and lanthanum and of yttrium, gadolinium or samarium

Catalytic compositions comprising the oxides of zirconium, cerium, yttrium, lanthanum and other rare earths

Gas processing for catalytically oxidizing carbon monoxide and hydrocarbons in the presence of a metal/silica-containing zirconia catalyst

Catalyst compositions for the treatment of vehicular exhaust gases comprise zirconium oxide and cerium oxide, and have a high reducibility and a stable specific surface area