Process for the preparation of zeolites encapsulating transition metal nanoparticles from layered silicate precursors
AssigneeBASF SE
InventorsRobert MCGUIRE, Mathias FEYEN, Ulrich MUELLER, Weiping ZHANG
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AssigneeBASF SE
InventorsRobert MCGUIRE, Mathias FEYEN, Ulrich MUELLER, Weiping ZHANG
Estimating the term…
The present invention relates to a process for the production of a transition metal containing zeolite comprising expanding a layered silicate with a swelling agent and introducing the transition metal into the interlayer expanded silicate prior to calcination thereof for obtaining the transition metal containing zeolite. The present invention further relates to a zeolite containing transition metal nanoparticles as obtainable or obtained according to the inventive process, as well as to a zeolite containing nanoparticles per se. Finally the present invention relates to the use of a zeolite containing transition metal nanoparticles as obtainable or obtained according to the inventive process, as well as to the use of a zeolite containing nanoparticles per se.
A process for the production of a transition metal-containing zeolite, the process comprising:
A zeolite comprising transition metal nanoparticles, wherein the framework structure of the zeolite comprises YO2 and optionally X2O3, wherein Y is a tetravalent element, and X is a trivalent element, and wherein the micropores of the zeolite comprise 0.15 to 5 wt.-% of the transition metal nanoparticles calculated as the metal element and based on 100 wt.-% of the total weight of X, Y, O, and of the transition metal contained in the zeolite calculated as the respective element, wherein the mean particle size d50 of the transition metal nanoparticles is in the range of from 0.5 to 4 nm, and wherein the transition metal is at least one selected from groups 8 to 11 of the periodic table.
Dependencies are inferred from the claim text.