Sun Company, Inc (r&m)

University of British Columbia

Sunoco Inc (r&m)

Sun Company, Inc.

Other

Rohm and Haas Company

Sandoz Gmbh

Sunoco, Inc.

Tilak P Wijesekera

James E Lyons

Paul E Ellis, Jr

David H Dolphin

Vincent A Durante

Manoj V Bhinde

Swati Karmakar

Hang Tang

Lily Y Xie

Roberta L Farrell

Thomas K Kirk

Theodore E Maione

Paul Y Hin

Taku Nakano

Scott R Keenan

Ross W Boyle

Richard W Wagner

A method is provided for the efficient, low cost removal of acetol from a phenol stream. The method results in removal of substantially all of the acetol from the phenol stream without the formation of substantial amounts of additional methylbenzofuran. The method also avoids the use of expensive reagents and capital intensive distillation equipment.

Method for removal of acetol from phenol

A process for treating phenol with a strong acid ion exchange resin to reduce the level of methylbenzofuran is provided. The process is capable of being carried out at elevated temperatures for extended periods, such that cooling of the phenol from distillation temperatures prior to the resin treatment is not required. The process can reduce or eliminate the substantial costs associated with conventional processes that require cooling and re-heating the phenol.

Method for reducing methylbenzofuran levels in high purity phenol

Alkanes are converted to unsaturated carboxylic acids by contacting an alkane with an oxidizing agent and a Wells-Dawson type heteropolyacid supported on wide pore polyoxometallate salts.

Wells-Dawson type heteropolyacids, their preparation and use as oxidation catalysts

Wells-Dawson type heteropolyacids, their preparation and use as

The invention comprises a method for the oxidation of alkanes to alcohols and for decomposition of hydroperoxides to alcohols utilizing new compositions of matter, which are metal complexes of porphyrins. Preferred complexes have hydrogen, haloalkyl or haloaryl groups in meso positions, two of the opposed meso atoms or groups being hydrogen or haloaryl, and two of the opposed meso atoms or groups being hydrogen or haloalkyl, but not all four of the meso atoms or groups being hydrogen. Other preferred complexes are ones in which all four of the meso positions are substituted with haloalkyl groups and the beta positions are substituted with halogen atoms. A new method of synthesizing porphyrinogens is also disclosed.

Method for oxidizing alkanes using novel porphyrins synthesized from

Catalyst compositions are disclosed which are useful for the hydroxylation and the ammination of aromatic hydrocarbons using molecular oxygen as terminal oxidant. The catalysts comprise a support selected from the group consisting of metal oxides, molecular sieves, zeolites and clays; transition metal selected from the group consisting of vanadium, niobium, copper, palladium, nickel and silver, and combinations thereof; and at least one multidentate chelating, binucleating ligand. The catalysts may further comprise additional metal ions. The process is particularly suited, for example, to the one-step conversion of benzene to phenol and of benzene to aniline.

Catalysts for hydroxylation and ammination of aromatics using molecular

A process is disclosed for the catalytic hydroxylation of aromatic hydrocarbons which comprises contacting aromatic feedstock with oxidant comprising molecular oxygen, under suitable reaction conditions, in the presence of a catalyst comprising vanadyl (V.sup.IV) on an alumina support, preferably on leached alumina. The process is particularly suited, for example, to the one-step conversion of benzene to phenol.

Leached alumina vanadyl catalysts for hydroxylation of aromatics using

A process is disclosed for the catalytic hydroxylation of aromatic hydrocarbons which comprises contacting aromatic feedstock with oxidant comprising molecular oxygen, under suitable reaction conditions, in the presence of a catalyst comprising three essential components: a support; transition metal selected from the group consisting of vanadium, niobium, copper, palladium, nickel and silver, or combinations thereof, and a promoter comprising a multidentate chelating, binucleating ligand. The catalysts may further comprise additional metal ions. The process is particularly suited, for example, to the one-step conversion of benzene to phenol.

Hydroxylation of aromatics using molecular oxygen as the terminal

The present invention comprises a process for catalytic oxidative ammination of aromatic hydrocarbons which comprising contacting aromatic feedstock with oxidant, such as molecular oxygen, under suitable reaction conditions, in the presence of a catalyst comprising three essential components: a support; transition metal; and a mono- or binucleating ligand. In one embodiment of the invention the ligand comprises at least one nitro or nitroso group. In another embodiment, the ligand comprises a multidentate, chelating binuclear compound. The process is particularly suited, for example, to the one-step conversion of benzene to aniline.

Oxidative ammination of benzene to aniline using molecular oxygen as the

Transition metal complexes of meso-haloalkylporphyrins, wherein the haloalkyl groups contain 2 to 8 carbon atoms have been found to be highly effective catalysts for oxidation of alkanes and for the decomposition of hydroperoxides.

Alkane oxidation with porphyrins and metal complexes thereof having

Transition metal complexes of meso-haloalkylporphyrins, wherein the haloalkyl groups contain 2 to 8 carbon atoms have been found to be highly effective catalysts for oxidation of alkanes and for the decomposition of hydroperoxides. Also disclosed is a process for the preparation of meso-halocarbyl-porphyrins which comprises contacting a halocarbyl dipyrromethane with a halocarbyl-substituted aldehyde in the presence of an acid granular solid catalyst. Also disclosed is a process for the preparation of meso-halocarbyl-porphyrins which comprises contacting a halocarbyl dipyrromethane with a halocarbyl-substituted aldehyde in the presence of an acid granular solic catalyst.

Method of preparing meso-haloalkylporphyrins

The invention comprises new compositions of matter, which are iron, manganese, cobalt or ruthenium complexes of porphyrins having hydrogen, haloalkyl or haloaryl groups in meso positions, two of the opposed meso atoms or groups being hydrogen or haloaryl, and two of the opposed meso atoms or groups being hydrogen or haloalkyl, but not all four of the meso atoms or groups being hydrogen. The invention also comprises new compositions of matter in which all four of the meso positions are substituted with haloalkyl groups and the beta positions are substituted with halogen atoms. A new method of synthesizing porphyrinogens is also provided.

Porphyrins and their synthesis from dipyrromethanes and aldehydes

Compounds of the formula ##STR1## and the metalated forms and salts thereof; wherein n is an integer of 1-4; and

Growing community of inventors

Glen Mills, PA, United States of America

Tilak P Wijesekera