Uop Lcc

Union Carbide Corporation

Other

Stephen T Wilson

Edith M Flanigen

Robert L Patton

Brent M Lok

Chunqing Liu

David A Lesch

Paul T Barger

Thomas M Reynolds

Gregory John Lewis

Robert L Bedard

Lawrence D Vail

Christopher P Nicholas

Gregory J Gajda

John Qianjun Chen

Bonita K Marcus

Wharton Sinkler

Jaime G Moscoso

R Lyle Patton

Robert W Broach

Natasha Erdman

Deng-Yang Jan

Santi Kulprathipanja

Hayim Abrevaya

Susan C Koster

Lisa M Knight

Beth McCulloch

Linda Shi Cheng

Julio C Marte

Ben A Wilson

Naomi A Woodard

Jennifer S Holmgren

Lisa M King

Man-Wing Tang

Mark E Schott

Richard T Gajek

Jeffrey J Chiou

Celeste A Messina

Lance Lyle Jacobsen

William C Mercer

Lisa M Rohde

Peter K Coughlin

Suheil F Abdo

Beckay J Mezza

Hermann A Zinnen

Ralph T Yang

Richard R Willis

James R Lansbarkis

John E Bauer

Michael G Gatter

Raelynn M Miller

Hemant W Dandekar

Annabelle I Benin

William H Flank

Jana L Gisselquist

Joel Padin

Deng Yang Jan

Salil U Rege

Brian S Konrad

Hermant W Dandekar

Chunoing Liu

A new family of a microporous crystalline metallophosphate-based materials designated SAPO-80 has been synthesized. These metallophosphate-based materials are represented by the empirical formulaRMEPSiOwhere R is a quaternary ammonium cation such as &#x3b1;,&#x3b1;'-bis(dimethylethylammonium)-p-xylene, E is a framework element such as aluminum or gallium and the framework may optionally contain a divalent framework metal M such as magnesium or zinc. The microporous SAPO-80 compositions are characterized by having the AFX topology and have catalytic properties for carrying out various hydrocarbon conversion processes and separating properties for separating at least one component.

Metallophosphate molecular sieves and method of preparation and use

This invention involves a composition, a method of making, and an application of high plasticization-resistant chemically cross-linked polymeric membranes such as cross-linked cellulose acetate (CA) membrane. These cross-linked polymeric membranes with covalently interpolymer-chain-connected rigid networks showed no decrease in CO/CHideal selectivity under 690 kPa (100 psig) pure COpressure and also no COplasticization up to 3447 kPa (500 psig) pure COpressure. By using the method of chemical cross-linking as described in this invention, the separation characteristics of the polymeric membranes can be decisively improved. These new cross-linked polymeric membranes can be used not only for gas separations such as CO/CHand CO/Nseparations, O/Nseparation, olefin/paraffin separations (e.g. propylene/propane separation), iso/normal paraffins separations, but also for liquid separations such as pervaporation and desalination.

High plasticization-resistant cross-linked polymeric membranes for separations

A process is presented for the formation of a SAPO-34 catalyst product. The process, that involves treatment with water or optionally at least one dissolved solid selected from the group consisting of ammonium chloride, ammonium phosphate, ammonium sulfate, ammonium acetate, ammonium carbonate, ammonium nitrate and mixtures thereof creates a SAPO-34 catalyst that has an increased selectivity for production of ethylene and propylene.

Water treated catalyst to produce light olefins

A new family of aluminosilicate zeolites designated UZM-44 has been synthesized. These zeolites are represented by the empirical formula.NaMTAlESiOwhere 'n' is the mole ratio of Na to (Al+E), M represents a metal or metals from zinc, Group 1, Group 2, Group 3 and or the lanthanide series of the periodic table, 'm' is the mole ratio of M to (Al+E), &#x201c;k&#x201d; is the average charge of the metal or metals M, T is the organic structure directing agent or agents, and E is a framework element such as gallium. These zeolites are similar to IM-5 but are characterized by unique compositions and synthesis procedures and have catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for carrying out various separations.

UZM-44 aluminosilicate zeolite

The present invention discloses microporous UZM-5 zeolite membranes, methods for making the same, and methods of separating gases, vapors, and liquids using the same. The small-pore microporous UZM-5 zeolite membrane is prepared by two different methods, including in-situ crystallization of one or more layers of UZM-5 zeolite crystals on a porous membrane support, and a seeding method by in-situ crystallization of a continuous second layer of UZM-5 zeolite crystals on a seed layer of UZM-5 zeolite crystals supported on a porous membrane support. The membranes in the form of disks, tubes, or hollow fibers have superior thermal and chemical stability, good erosion resistance, high COplasticization resistance, and significantly improved selectivity over polymer membranes for gas, vapor, and liquid separations.

Microporous UZM-5 inorganic zeolite membranes for gas, vapor, and liquid separations

Mixed matrix membranes that are capable of separation and purification of gas mixtures are disclosed. These membranes comprise polymers that include dispersed therein nanomolecular sieve particles. In a preferred embodiment, the nanomolecular sieve particles contain attached functional groups to prevent their agglomeration.

Mixed matrix membranes incorporating surface-functionalized molecular sieve nanoparticles

A process for forming a zeolite beta dielectric layer onto a substrate such as a silicon wafer has been developed. The zeolite beta is characterized in that it has an aluminum concentration from about 0.1 to about 2.0 wt. %, and has crystallites from about 5 to about 40 nanometers. The process involves first dealuminating a starting zeolite beta, then preparing a slurry of the dealuminated zeolite beta followed by coating a substrate, e.g. silicon wafer with the slurry, heating to form a zeolite beta film and treating the zeolite beta with a silylating agent.

Process for preparing a dielectric interlayer film containing silicon beta zeolite

The present invention comprises a hydrocarbon-conversion process using an improved MgAPSO-31 molecular sieve which demonstrates a favorable combination of conversion and selectivity in aromatics conversion. The sieve has a specific combination of crystal configuration, being limited in diameter and length, specified crystallinity as measured by an X-Ray Diffraction Index (XRDI), and a narrow range of magnesium content.

Hydrocarbon conversion using an improved molecular sieve

The present invention discloses microporous aluminophosphate (AlPO) molecular sieve membranes and methods for making and using the same. The microporous AlPOmolecular sieve membranes, particularly small pore microporous AlPO-14 and AlPO-18 molecular sieve membranes, are prepared by three different methods, including in-situ crystallization of a layer of AlPOmolecular sieve crystals on a porous membrane support, coating a layer of polymer-bound AlPOmolecular sieve crystals on a porous membrane support, and a seeding method by in-situ crystallization of a continuous second layer of AlPOmolecular sieve crystals on a seed layer of AlPOmolecular sieve crystals supported on a porous membrane support. The microporous AlPOmolecular sieve membranes have superior thermal and chemical stability, good erosion resistance, high COplasticization resistance, and significantly improved selectivity over polymer membranes for gas and liquid separations, including carbon dioxide/methane (CO/CH), carbon dioxide/nitrogen (CO/N), and hydrogen/methane (H/CH) separations.

Microporous aluminophosphate molecular sieve membranes for highly selective separations

The present invention discloses an approach for making mixed matrix membranes (MMMs) and methods for using these membranes. These MMMs contain a continuous polymer matrix and dispersed microporous molecular sieve particles. This invention also pertains to control of the thickness of the thin dense selective mixed matrix membrane layer that is equal to or greater than the particle size of the largest molecular sieve particles for making large scale asymmetric MMMs. In particular, the invention is directed to making asymmetric flat sheet MMM by a phase inversion technique. The MMMs of the present invention exhibit at least 20% increase in selectivity compared to the polymer membranes prepared from their corresponding continuous polymer matrices. The MMMs of the present invention are suitable for a variety of liquid, gas, and vapor separations.

Molecular sieve/polymer asymmetric flat sheet mixed matrix membranes

This invention describes a new concept of flexible template-directed microporous partially pyrolyzed polymeric membranes which have greatly improved performance in separation of gas pairs compared to their precursor polymeric membranes. Organic hosts, such as crown ethers, cyclodextrins (CDs), calixarenes (CXs), and spherands, or polymeric additives, such as poly(ethylene glycol) (PEG) and polyvinylpyrrolidone (PVP) were used as the micropore-forming templates. Micropore-forming template/polymer blend membranes comprising organic micropore-forming templates embedded in a polymer matrix were prepared by dissolving the organic micropore-forming templates in the polymer solution followed by solution-casting and solvent evaporation or solvent exchange. Low-temperature selectively pyrolyzing micropore-forming templates in the micropore-forming template/polymer blend membranes at a nitrogen flow resulted in the formation of flexible microporous partially pyrolyzed polymeric membranes.

Flexible template-directed microporous partially pyrolyzed polymeric membranes

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Libertyville, IL, United States of America

Stephen T Wilson