Abstract:
The present invention relates to processes for preparing a porous organometallic framework material, comprising the step of reacting at least one metal compound with at least one at least bidentate organic compound which can bond coordinatively to the metal, in the presence of a non-aqueous organic solvent, the metal being ScIII, YIII or a trivalent lanthanide, and the organic compound having at least two atoms each selected independently from the group consisting of oxygen, sulphur and nitrogen, and via which the organic compound can bond coordinatively to the metal, the reaction taking place with stirring and at a pressure of not more than 2 bar (absolute). The invention further relates to porous organometallic framework materials which have been prepared by this process, and also to their use.
Abstract:
The invention concerns a method of producing a passivated catalyst containing a zeolite and at least one active metal, characterized in that the catalyst is held in a fluidized bed where it is passivated with a silicon compound.
Abstract:
A process for the preparation of a catalyst for the use in a hydrocarbon conversion reaction, said catalyst containing a titanium zeolite and carbonaceous material, the catalyst containing said carbonaceous material in an amount of from 0.01 to 0.5 % by weight based on the total weight of titanium zeolite contained in the catalyst, the process comprising (i) preparing a catalyst containing the titanium zeolite and (ii) depositing carbonaceous material on the catalyst according to (i) in an amount of from 0.01 to 0.5 % by weight based on the total weight of titanium zeolite contained in the catalyst by contacting said catalyst, prior to using the catalyst in said hydrocarbon conversion reaction, with a fluid containing at least one hydrocarbon in an inert atmosphere, to obtain the carbonaceous material containing catalyst, wherein in (ii), the catalyst is not contacted with an oxygen containing gas.