Shell Oil Comapny

Aart Bartus Van Oort

Richard L Wife

Arie Van Zon

Harry Van Der Heijden

Eric Johannes Maria De Boer

Nicolaas Meijboom

Johannes A Van Doorn

Petrus W Van Leeuwen

Eit Drent

Quoc An On

Johannes J Snel

Hendrikus Hyacinthus Deuling

Henderikus Hyacinthus Deuling

Timothy Michael Nisbet

Andrew David Horton

Minne Boelens

A process for preparing styrene by contacting a gaseous feed which contains 1-phenylethanol and at least 0.1% wt of phenol and/or ethylphenol with a heterogeneous dehydration catalyst in the presence of at least 0.40% wt of benzylalcohol and at a molar ratio of benzylalcohol to total amount of phenol and ethylphenol of at least 0.8.

Process for preparing styrene

A process for production of higher linear alpha olefins and/or alkyl-branched alpha olefins, which comprises the co-oligomerisation of one or more alpha olefins with ethylene in the presence of a metal catalyst system employing one or more bis-aryliminepyridine MXcomplexes and/or one or more [bis-aryliminepyridine MY.L][NC]complexes; and said process is carried out at an ethylene pressure of less than 2.5 MPa.

Process for the co-oligomerisation of ethylene and alpha olefins

Non-symmetrical ligands of formula (I); bis-aryliminepyridine MXcomplexes comprising a non-symmetrical ligand of formula (I), wherein M is a metal selected from Fe or Co, n is 2 or 3, and X is halide, optionally substituted hydrocarbyl, alkoxide, amide, or hydride; [bis-aryliminepyridine MY.L][NC]complexes, comprising a non-symmetrical ligand of formula (I), wherein Y is a ligand which may insert an olefin, M is Fe or Co, NCis a non-coordinating anion and p+q is 2 or 3, matching the formal oxidation of the metal atom M, L is a neutral Lewis donor molecule and n=0, 1, or 2; and processes for the production of alpha-olefins from ethylene, using said complexes.

Non-symmetrical ligands and catalyst systems thereof for ethylene oligomerization to linear alpha olefins

An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a catalyst composition formed from a palladium salt and a phosphino-substituted sulfonic acid.

Polymerization process

Carbon monoxide/olefin co-polymerization process with phosphino

A process for the preparation of phenylene-bis-phosphineoxide compounds by reacting in a polar aprotic solvent a difluorobenzene compound with a compound of the general formula ##STR1## wherein Me is an alkali metal, R.sup.1 and R.sup.2 each independently represents an alkyl-, aryl-, alkaryl- or aralkyl group, or R.sup.1 and R.sup.2 together form an alkylene group.

Bis-phosphineoxide compounds

Process for the preparation of bis-phosphineoxide compounds

A process is disclosed for the preparation of 1,2-bis-phosphine oxides by reacting at least one of certain phosphine oxides with certain oxirane compounds in an aprotic solvent and in the presence of a basic compound.

Process for the preparation of bisphosphine dioxides

Growing community of inventors

Amsterdam, Netherlands

Aart Bartus Van Oort