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公开(公告)号：CA2421816C
公开(公告)日：2009-11-17
申请号：CA2421816
申请日：2001-09-14
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor： NELSON JAMES RUSSELL , BHASIN MADAN MOHAN , STRICKER VINCENT JOSEPH , CULP GARY LYNN , NIELSEN KENNETH ANDREW
IPC: B01J23/12 , C07C11/02 , B01J23/34 , C07B61/00 , C07C2/84 , C07C5/48 , C07C7/152 , C07C7/156 , C07C11/04 , C07C11/06 , C07C11/113
Abstract: The present invention provides methods for manufacturing olefins such as ethylene and propylene from lower alkanes, that is, methane, ethane and/or propane, by oxidative dehydrogenation at elevated pressure. The olefins are selectively recovered from unconverted lower alkane feed and reaction byproducts by using a complexation separation, such as an absorption separation that uses aqueous silver nitrate as the complexation agent. Catalysts are used that give high selectivity for oxidative dehydrogenation of lower alkanes to olefins at elevated pressure, such as a nonstoichiometric rare earth oxycarbonate catalyst.
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公开(公告)号：BR0114133A
公开(公告)日：2003-07-29
申请号：BR0114133
申请日：2001-09-14
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor： CULP GARY LYNN , STRICKER VICENT JOSEPH , NELSON JAMES RUSSELL , BHASIN MADAN MOHAN , NIELSEN KENNETH ANDREW
IPC: B01J23/12 , B01J23/34 , C07B61/00 , C07C2/84 , C07C5/48 , C07C7/152 , C07C7/156 , C07C11/02 , C07C11/04 , C07C11/06 , C07C11/113
Abstract: The present invention provides methods for manufacturing olefins such as ethylene and propylene from lower alkanes, that is, methane, ethane and/or propane, by oxidative dehydrogenation at elevated pressure. The olefins are selectively recovered from unconverted lower alkane feed and reaction byproducts by using a complexation separation, such as an absorption separation that uses aqueous silver nitrate as the complexation agent. Catalysts are used that give high selectivity for oxidative dehydrogenation of lower alkanes to olefins at elevated pressure, such as a nonstoichiometric rare earth oxycarbonate catalyst.
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公开(公告)号：NO20031210L
公开(公告)日：2003-05-16
申请号：NO20031210
申请日：2003-03-17
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor： CANTRELL RICK DAVID , GHENCIU ANCA , CAMPBELL KENNETH DWIGHT , MINAHAN DAVID MICHAEL ANTHONY , BHASIN MADAN MOHAN , WESTWOOD ALISTAIR DUNCAN , NIELSEN KENNETH ANDREW
IPC: B01J23/10 , B01J27/232 , B01J27/236 , B01J27/25 , B01J37/14 , C01F17/00 , C07B61/00 , C07C2/84 , C07C5/48 , C07C9/06 , C07C9/08 , C07C11/04 , B01J37/08
Abstract: The present invention provides a catalyst for the oxidative dehydrogenation of a lower hydrocarbon to form at least one higher hydrocarbon and/or lower olefin. In one embodiment, the catalyst includes a nonstoichiometric rare earth oxycarbonate of the formula MXCYOZ having a disordered and/or defect structure, wherein M is at least one rare earth element selected from the group consisting of La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, and Tm; X=2; Z=3+AY; A is less than about 1.8, and Y is the number of carbon atoms in the oxycarbonate. When used for the oxidative dehydrogenation of a lower hydrocarbon at a pressure above about 100 psig, the catalyst has a selectivity of at least about 40% to at least one higher hydrocarbon and/or lower olefin. Methods for preparing catalysts taught by the invention and processes for using the catalysts for the oxidative dehydrogenation of lower hydrocarbons are also provided.
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公开(公告)号：NO20031210D0
公开(公告)日：2003-03-17
申请号：NO20031210
申请日：2003-03-17
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor： CANTRELL RICK DAVID , GHENCIU ANCA , CAMPBELL KENNETH DWIGHT , MINAHAN DAVID MICHAEL ANTHONY , BHASIN MADAN MOHAN , WESTWOOD ALISTAIR DUNCAN , NIELSEN KENNETH ANDREW
IPC: B01J23/10 , B01J27/232 , B01J27/236 , B01J27/25 , B01J37/14 , C01F17/00 , C07B61/00 , C07C2/84 , C07C5/48 , C07C9/06 , C07C9/08 , C07C11/04 , B01J
Abstract: The present invention provides a catalyst for the oxidative dehydrogenation of a lower hydrocarbon to form at least one higher hydrocarbon and/or lower olefin. In one embodiment, the catalyst includes a nonstoichiometric rare earth oxycarbonate of the formula MXCYOZ having a disordered and/or defect structure, wherein M is at least one rare earth element selected from the group consisting of La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, and Tm; X=2; Z=3+AY; A is less than about 1.8, and Y is the number of carbon atoms in the oxycarbonate. When used for the oxidative dehydrogenation of a lower hydrocarbon at a pressure above about 100 psig, the catalyst has a selectivity of at least about 40% to at least one higher hydrocarbon and/or lower olefin. Methods for preparing catalysts taught by the invention and processes for using the catalysts for the oxidative dehydrogenation of lower hydrocarbons are also provided.
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公开(公告)号：CA2421816A1
公开(公告)日：2002-03-28
申请号：CA2421816
申请日：2001-09-14
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor： NIELSEN KENNETH ANDREW , STRICKER VINCENT JOSEPH , BHASIN MADAN MOHAN , NELSON JAMES RUSSELL , CULP GARY LYNN
IPC: B01J23/12 , B01J23/34 , C07B61/00 , C07C2/84 , C07C5/48 , C07C7/152 , C07C7/156 , C07C11/02 , C07C11/04 , C07C11/06 , C07C11/113
Abstract: The present invention provides methods for manufacturing olefins such as ethylene and propylene from lower alkanes, that is, methane, ethane and/or propane, by oxidative dehydrogenation at elevated pressure. The olefins are selectively recovered from unconverted lower alkane feed and reaction byproducts by using a complexation separation, such as an absorption separation that uses aqueous silver nitrate as the complexation agent. Catalysts are used that give high selectivity for oxidative dehydrogenation of lower alkanes to olefins at elevated pressure, such as a nonstoichiometric rare earth oxycarbonate catalyst.
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Patent Agency Ranking
公开(公告)号：BR9814065A
公开(公告)日：2002-01-22
申请号：BR9814065
申请日：1998-10-09
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor： NIELSEN KENNETH ANDREW , GOAD JEFFREY DALE , BAUMERT DUANE FRANCIS , CESARETTI RICHARD SCOTT
IPC: D06B1/02 , B05D1/02 , B05D7/00 , C09K3/30 , D06M23/06 , D06M23/10 , D21H21/22 , D21H23/24 , D21H23/50
Abstract: The present invention is directed to methods for the spray application of additive compositions containing additive materials in the manufacture of sheet material products, such as paper products, textile products, and flexible sheet products by using compressed fluids, such as carbon dioxide and ethane, as a spraying medium. Additive compositions with high viscosity and which are substantially free of water and/or volatile solvent can be applied to sheet materials. Water-borne additive compositions with reduced water content can also be applied to sheet materials. One preferred spray method uses a decompressive spray of the compressed fluid which produces a uniform spray pattern and a narrow droplet size distribution that can improve application efficiency and quality when additive compositions are applied during the spraying step to rapidly conveyed sheet materials.
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公开(公告)号：HU0100053A2
公开(公告)日：2001-05-28
申请号：HU0100053
申请日：1998-10-09
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor： BAUMERT DUANE FRANCIS , CESARETTI RICHARD SCOTT , GOAD JEFFREY DALE , NIELSEN KENNETH ANDREW
IPC: D06B1/02 , B05D1/02 , B05D7/00 , C09K3/30 , D06M23/06 , D06M23/10 , D21H21/22 , D21H23/24 , D21H23/50
Abstract: The present invention is directed to methods for the spray application of additive compositions containing additive materials in the manufacture of sheet material products, such as paper products, textile products, and flexible sheet products by using compressed fluids, such as carbon dioxide and ethane, as a spraying medium. Additive compositions with high viscosity and which are substantially free of water and/or volatile solvent can be applied to sheet materials. Water-borne additive compositions with reduced water content can also be applied to sheet materials. One preferred spray method uses a decompressive spray of the compressed fluid which produces a uniform spray pattern and a narrow droplet size distribution that can improve application efficiency and quality when additive compositions are applied during the spraying step to rapidly conveyed sheet materials.
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公开(公告)号：DK0711586T3
公开(公告)日：2000-12-27
申请号：DK95308100
申请日：1995-11-13
Applicant: UNION CARBIDE CHEM PLASTIC
Abstract: This invention relates to methods for spraying liquid compositions containing volatile solvent by using compressed fluids, such as carbon dioxide or ethane, to form solid particulates, coating powders, and catalyst materials, which can be produced with narrow particle size distributions and can be sprayed at higher solids levels, in ambient air or with heated air applied to just the spray instead of a spray chamber. Novel catalyst supports can be produced having a beneficial morphology such as for olefin catalysis. Drier water-borne coatings can be applied to substrates by using compressed fluids to spray water-borne coating compositions having conventional water levels, thereby reducing runs and sags and shortening dry times.
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公开(公告)号：AU2151900A
公开(公告)日：2000-06-05
申请号：AU2151900
申请日：1999-11-17
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor： NIELSEN KENNETH ANDREW
Abstract: Processes are disclosed for the use of subcritical compressed fluids, such as carbon dioxide or ethane, to reduce viscosity and to enhance atomization when spray applying coating compositions containing low molecular weight polymers to substrates, by using spray conditions that produce choked flow in the liquid mixture being sprayed, wherein the subcritical compressed fluid is a gas at standard conditions of 0° C. temperature and one atmosphere pressure and is miscible with the coating composition.
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公开(公告)号：DK0721379T3
公开(公告)日：1997-09-01
申请号：DK94929908
申请日：1994-09-27
Applicant: UNION CARBIDE CHEM PLASTIC
Inventor： NIELSEN KENNETH ANDREW
Abstract: The present invention is directed to methods for spraying polymeric compositions with supercritical or subcritical compressed fluids such as carbon dioxide or ethane over a wider range of spray conditions to provide improved spray application quality with reduced emission of solvent. The methods are accomplished by using an elongated spray orifice to transform narrow, fishtail, liquid-film sprays to wider, feathered, decompressive sprays.
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