Shell Oil Comapny

Robert Adrianus Wilhelmus Grotenbreg

Michiel Barend Eleveld

Johan Paul Smit

Riemer Alberts De Groot

Ronald Van Kempen

Ronald Jan Dogterom

Gerardus Petrus Lambertus Niesen

A process for the preparation of a titania catalyst or a titania catalyst carrier is described. It comprises the steps of: obtaining a wet filtercake of titania, the titania having been made by hydrolysis of a suitable titanium compound, optionally admixing the wet filtercake with one or more catalyst materials, extruding said filtercake or said admixture, and drying and/or calcining the so-formed extrudate. The wet filtercake of titania can be provided from any known route or source or reaction. These include the the wet chloride or sulphate processes. The present invention removes the need for current separate drying and calcination of the titania sulphate product prior to its admixture with a catalyst material. It provides a catalyst with increased strength, which catalyst has also been found to provide greater catalytic activity, especially in C5+ selectivity.

Process for the production of hydrocarbons

Process comprising treating a double metal cyanide complex catalyst with sound waves and/or electromagnetic radiation, process for polymerising alkylene oxide in which such catalyst is used, and double metal cyanide complex catalyst which catalyst has been treated with sound waves and/or electromagnetic radiation.

Double metal complex catalyst

The present invention relates to a process for the preparation of a double metal cyanide (DMC) catalyst, which process involves:

Preparation of a double metal cyanide catalyst

Polymerizing alkylene oxide with sound or radiation treated DMC

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Amsterdam, Netherlands

Robert Adrianus Wilhelmus Grotenbreg