Nova Chemicals (international) S.a.

Ineos Europe Limited

Nova Chemicals Inc.

Perry De Wit

Xiaoliang Gao

Vasily Simanzhenkov

David Jeffrey Sullivan

Yoonhee Kim

Marie Annette Barnes

Victoria Ker

Brian Stephen Kimberley

Shivendra K Goyal

Hanna Drag

Mark Kelly

Peter Phung Ming Hoang

Provided in this disclosure are oxidative dehydrogenation catalysts that include a mixed metal oxide having the empirical formula:MoVTeNbOwherein d is a number to satisfy the valence of the oxide. The oxidative dehydrogenation catalyst is characterized by having XRD diffraction peaks (2&#x3b8; degrees) at 22&#xb1;0.2, 27&#xb1;0.2, 28.0&#xb1;0.2, and 28.3&#xb1;0.1. The disclosure also provides methods of making the catalysts that include wet ball milling.

Oxidative dehydrogenation catalysts

A process for preparing an oxidative dehydrogenation catalyst or oxidative dehydrogenation catalyst precursor that includes mixing solutions of molybdenum and tellurium at a pH from about 3.3 to 7.5; adjusting the pH of the resulting solution back to about 5 and adding VOSOand adding a solution of NbOand oxalic acid and treating the resulting precursor slurry in a controlled pressure hydrothermal process to obtain the catalyst.

Method for in situ high activity ODH catalyst

The present invention provides a novel process for preparing a catalyst useful in gas phase polymerization of olefins wherein the physical properties of the polymer and the productivity of the catalyst can be altered depending on the sequence of addition of the catalyst components. The catalyst consists of compounds of Ti, Mg, Al and optionally an electron donor supported on an amorphous support.

Enhanced polyolefin catalyst

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Calgary, Canada

Perry De Wit