Dow Global Technolgoies LLC

The Dow Chemical Company

Rohm and Haas Company

Other

Dean M Millar

Juan M Garces

David Craig Molzahn

Arthur A Chin

Robert Butterick

Nathan Tait Allen

Kevin E Howard

David Gordon Barton

Adam Chojecki

Robert J Gulotty, Jr

Palanichamy Manikandan

Stephen W King

Robert G Bowman

Andrzej Malek

William Gerald Stobby

Scott T Matteucci

Philippe Dubois

Richard Michael Wehmeyer

Brien A Stears

Albert Edward Schweizer

Davy L S Nieskens

Mark McAdon

Alexey Kirilin

Junqiang Liu

Mark E Jones

Yu Liu

Glenn Pollefeyt

Kevin J Bouck

Beata A Kilos

Eric E Stangland

Raymond M Collins

Daniela Ferrari

Wen-Sheng Lee

Albert E Schweizer, Jr

Michael Alexandre

Kurt A Koppi

Gerolamo Budroni

Tao Sun

Wenjun Xu

Cathy L Tway

Joseph F Dewilde

Alexander Kuperman

Gregg E Lewis

Daniel T Youmans

Robert J E G Jerome

Juan M Garc Es

Neelesh J Rane

Billy B Bardin

Simon G Podkolzin

Miguel Garcia-Marti

Jie Xiong

Davy LS Nieskens

Robert Gulotty

A method of forming a carbon molecular sieve membrane includes dissolving a halogenated precursor polymer in a solvent, thereby forming a dissolved halogenated precursor polymer. Homogeneously dehydrohalogenating the dissolved halogenated precursor polymer with an organic amine base to form a partially dehydrohalogenated polymer. Forming a thin film from the partially dehydrohalogenated polymer. Pyrolyzing the thin film to form the carbon molecular sieve membrane.

Method of producing carbon molecular sieve membranes

A process for preparing a microcapillary carbon molecular sieve membrane may include extruding a polyvinylidene chloride polymer to a thickness from 10 μm to 1,000 μm to form an extruded polymeric microcapillary film, wherein the extruded polymeric microcapillary film comprises a first end, a second end, and one or more microcapillaries extending from the first end to the second end; pre-treating the extruded polymeric microcapillary film at a temperature from 100° C. to 200° C. for a time from 1 hour to 48 hours to form a pre-treated polymeric microcapillary film; and pyrolizing the pre-treated polymeric microcapillary film at a temperature from 200° C. to 1,500° C. for a time from 15 minutes to 5 hours to form the microcapillary carbon molecular sieve membrane.

Methods for preparing microcapillary carbon molecular sieve membranes

A process for preparing C2 to C3 hydrocarbons may include introducing a feed stream including hydrogen gas and a carbon-containing gas comprising carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor, and converting the feed stream into a product stream comprising C2 to C3 hydrocarbons in the reaction zone in the presence of a hybrid catalyst. The hybrid catalyst may include a metal oxide catalyst component and a microporous catalyst component comprising 8-MR pore openings less than or equal to 5.1 A and a cage defining ring size less than or equal to 7.45 A, where a C2/C3 carbon molar ratio of the product stream is greater than or equal to 0.7.

Processes for preparing C2 to C3 hydrocarbons in the presence of a hybrid catalyst

Embodiments of the present disclosure are directed towards methods of etherification including modifying a zeolite catalyst with phosphorus to provide a phosphorus modified zeolite catalyst; and contacting the phosphorus modified zeolite catalyst with an olefin and an alcohol to produce a monoalkyl ether.

Methods of etherification

Catalyst compositions for producing mixed alcohols from a synthesis gas feed. The catalyst composition comprises a catalytic metal combination on a catalyst support, a first optional promoter and a second optional promoter, where the catalytic metal combination consists essentially of iridium, vanadium, and molybdenum.

Catalyst compositions for producing mixed alcohols

Disclosed herein are polyisocyanurate and/or polyurethane foams containing non-porous silica particles derived from mesoporous cellular foams, wherein the polyisocyanurate and/or polyurethane foams have enhanced heat and/or fire resistance. Processes for making such foams and methods of using them are also disclosed.

Polyisocyanurate foams containing dispersed non-porous silica particles

A process for preparing a molybdenum sulfide-based catalyst comprises drying a precipitated molybdenum sulfide-based catalyst precursor, for example, a wet filter cake, such that a particulate catalyst precursor, containing from 12 to 15 percent by weight water, is formed. The particulate catalyst precursor is desirably in the form of free-flowing particles. The particulate catalyst precursor is then auto-reduced. A rotary furnace that subjects the catalyst precursor to at least two zones having distinct temperatures may be conveniently used for drying, auto-reduction, or both. The staged drying and auto-reduction steps reduce the tendency of the precursor to self-heat, which is undesirable because it reduces both the activity and selectivity of the final catalyst.

Process for synthesis of molybdenum sulfide-based catalysts

A process for production of a borohydride compound M(BH). The process has three steps. The first step combines a compound of formula (RO)M with aluminum, hydrogen and a metallic catalyst containing at least one metal selected from the group consisting of titanium, zirconium, hafnium, niobium, vanadium, tantalum and iron to produce a compound of formula M(AlHOR), wherein Ris phenyl or phenyl substituted by at least one alkyl or alkoxy group; M is an alkali metal, Be or Mg; and y is one or two; wherein the catalyst is present at a level of at least 200 ppm based on weight of aluminum. The second step combines the compound of formula M(AlHOR)with a borate, boroxine or borazine compound to produce M(BH)and a byproduct mixture containing alkali metal and aluminum aryloxides. The third step separates M(BH)from the byproduct mixture.

Process for production of a borohydride compound

A process for production of a metal hydride compound MH, wherein x is one or two and M is an alkali metal, Be or Mg. The process comprises combining a compound of formula (RO)M with aluminum, hydrogen and at least one metal selected from among titanium, zirconium, hafnium, niobium, vanadium, tantalum and iron to produce a compound of formula MH. Ris phenyl or phenyl substituted by at least one alkyl or alkoxy group. A mole ratio of aluminum to (RO)M is from 0.1:1 to 1:1. The catalyst is present at a level of at least 200 ppm based on weight of aluminum.

Process for production of a metal hydride

Oxidatively halogenate methane by placing a feedstream that comprises methane, a source of halogen, a source of oxygen and, optionally, a source of diluent gas in contact with a first catalyst (e.g. a solid super acid or a solid super base) that has greater selectivity to methyl halide and carbon monoxide than to methylene halide, trihalomethane or carbon tetrahalide. Improve overall selectivity to methyl halide by using a second catalyst that converts at least part of the feedstream to a mixture of methyl halide, methylene halide, trihalomethane, carbon tetrahalide and unreacted oxygen, and placing that mixture in contact with the first catalyst which converts at least a portion of the methylene halide, trihalomethane and carbon tetrahalide to carbon monoxide, hydrogen halide and water.

Oxidative mono-halogenation of methane

Use a transition metal-containing, Anderson-type heteropoly compound catalyst to convert synthesis gas to an oxygenate, especially an alcohol that contains from one carbon atom to six carbon atoms.

Anderson-type heteropoly compound-based catalyst compositions and their use conversion of synthesis gas to oxygenates

A compound of formula M(AlHOR), wherein Ris phenyl substituted by at least one of: (i) an alkoxy group having from one to six carbon atoms; and (ii) an alkyl group having from three to twelve carbon atoms; wherein M is an alkali metal, Be or Mg; and y is one or two.

Process for production of an aluminum hydride compound

The present invention is a nanocomposite which is a dispersion of nanofiller particles derived from layered metal oxides or metal oxide salts. The nanocomposite is advantageously prepared by first swelling an untreated clay in water, then removing the water to form an organophilic clay that is dispersible in non-polar organic solvents. The organophilic clay can then be treated with an alkyl aluminoxane and subsequently a catalyst to form a complex that promotes olefin or styrenic polymerization and platelet dispersion. The nanocomposite can be prepared directly by in situ polymerization of the olefin or the styrene at the nanofiller particles without shear, without an ion exchange step, and without the need to incorporate polar substituents into the polyolefin or polystyrene.

Polyolefin nanocomposites

Process of modifying the porosity of aluminosilicates and silicas, and

A process of preparing a crystalline porous solid selected from silicas and metallosilicates, such as, aluminosilicate zeolites or clathrasils. The process involves preparing a reaction mixture containing ammonia; water in a controlled concentration; a (hydrocarbyl)ammonium polysilicate hydrate salt; a mineralizer, such as ammonium fluoride; optionally, a source of a metal oxide, such as aluminum nitride; and optionally, a source of a charge-balancing cation or a structure directing agent; and maintaining the mixture at a temperature and for a time so as to produce the crystalline porous solid. A novel silica which is isostructural with zeolite P1 is prepared. Also prepared are a novel silica which is isostructural with zeolite beta and a novel TMA sodalite having a silica/alumina molar ratio between 12 and about 20.

Synthesis of crystalline porous solids in ammonia

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Midland, MI, United States of America

Dean M Millar