Abstract:
Supported catalysts comprising noble metals, which can be obtained by a) applying colloidal noble metal in the form of a colloidal solution onto a carrier material, optionally mixed with additives acting as promoters, b1) drying the obtained product at 150 to 350°C, or b2) drying the obtained product at 150 to 350°C and subsequently calcining it at 350 to 550°C, for epoxidation or oxidative dehydrogenation. The invention further relates to a method for the production thereof, to the use thereof, and to the use of colloidal noble metals for producing supported catalysts.
Abstract:
The present invention relates to a method for producing cis-2-(2-methyl-prop-1-ene-yl)-4-methyl-tetrahydropyrane, comprising the catalytic hydration of 2-(2-methyl-prop-1-ene-yl)-4-methylene-tetrahydropyrane in the presence of hydrogen and a heterogeneous catalyst, which comprises ruthenium on a carrier, and subsequently bringing the compounds thus obtained into contact with a strongly acid cation exchanger.