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| Number | Title | Issue Date |
| 7396955 | Annealed and promoted catalyst A mixed metal oxide, which may be an orthorhombic phase material, is improved as a catalyst for the production of unsaturated carboxylic acids, or unsaturated nitrites, from alkanes, or mixtures of alkanes and alkenes, by: contacting with a liquid contact member sel... | 07/08/2008 |
| 7348292 | Annealed and promoted catalyst A mixed metal oxide, which may be an orthorhombic phase material, is improved as a catalyst for the production of unsaturated carboxylic acids, or unsaturated nitriles, from alkanes, or mixtures of alkanes and alkenes, by: contacting with a liquid contact member sel... | 03/25/2008 |
| 7326668 | Single crystalline phase catalyst An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield and used to produce. ... | 02/05/2008 |
| 7208445 | Single crystalline phase catalyst An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield. ... | 04/24/2007 |
| 7128085 | Valve mounting assembly having a fluid port for washing unwanted material accumulations off the valve In one embodiment, the invention provides a rupture disk assembly having a rupture disk and a rupture disk holder. The rupture disk holder has a first annular member downstream of the rupture disk, a second annular member upstream of the rupture disk, and an optiona... | 10/31/2006 |
| 7128813 | Process for manufacturing high purity methacrylic acid A process for the high yield production of high purity glacial methacrylic acid (“HPMAA”) with minimization of decomposition of hydroxy isobutyric acid (HIBA). The HPMAA is substantially pure, specifically 99% pure or greater with a water content of 0.05% or les... | 10/31/2006 |
| 7074956 | Hydrothermally synthesized Mo-V-M-X oxide catalysts for the selective oxidation of hydrocarbons Hydrothermally synthesized catalysts comprising a mixed metal oxide are utilized to produce unsaturated carboxylic acids by the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, in the presence thereof; or to produce unsaturated nitriles b... | 07/11/2006 |
| 7063827 | Process for producing hydrogen cyanide A conical reactor head for use in chemical processes or other systems is provided. The reactor head includes a robust internal insulator to boost efficiency while maintaining safety by allowing the reactor head to self-radiate at high temperatures. The reactor head ... | 06/20/2006 |
| 7053022 | Hydrothermally synthesized MO-V-M-NB-X oxide catalysts for the selective oxidation of hydrocarbons Hydrothermally synthesized catalysts comprising a mixed metal oxide are utilized to produce unsaturated carboxylic acids by the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, in the presence thereof; or to produce unsaturated nitriles b... | 05/30/2006 |
| 7049466 | Recycle process A method for producing an unsaturated carboxylic acid comprises: (a) contacting, in a reaction zone, an alkane with a catalyst containing a mixed metal oxide, under conditions which produce a product gas comprising the unsaturated carboxylic acid, unreacted alkane a... | 05/23/2006 |
| 7018951 | Annealed and promoted catalyst A mixed metal oxide, which may be an orthorhombic phase material, is improved as a catalyst for the production of unsaturated carboxylic acids, or unsaturated nitriles, from alkanes, or mixtures of alkanes and alkenes, by: contacting with a liquid contact member sel... | 03/28/2006 |
| 7015173 | High temperature mixing A catalyst comprising a mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an u... | 03/21/2006 |
| 7001500 | Electroactive catalysis The application of an electric current to catalysts useful for the vapor phase oxidation of hydrocarbons allows for processes for obtaining enhanced catalytic processing of a given feed material with a given catalyst, processes allowing the ready change-over from on... | 02/21/2006 |
| 6989460 | Methods for producing unsaturated carboxylic acids and unsaturated nitriles Unsaturated carboxylic acids are produced by the vapor phase catalytic oxidation of mixtures of alkenes and alkanes in the presence of a catalyst containing a mixed metal oxide. Similarly, unsaturated nitriles are produced by the vapor phase catalytic oxidation of a... | 01/24/2006 |
| 6983758 | Prevention of unwanted material accumulations In one embodiment, the invention provides a rupture disk assembly having a rupture disk and a rupture disk holder. The rupture disk holder has a first annular member downstream of the rupture disk, a second annular member upstream of the rupture disk, and an optiona... | 01/10/2006 |
| 6984750 | PVD supported mixed metal oxide catalyst A supported catalyst comprising a mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alke... | 01/10/2006 |
| 6982343 | Treatment of mixed metal oxide catalyst A catalyst comprising a mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an u... | 01/03/2006 |
| 6965050 | Single crystalline phase catalyst An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield. ... | 11/15/2005 |
| 6939444 | Sulfur-bearing residue treatment system A sulfur-bearing residue treatment system is provided for the recovery of valuable organic components and the reduction of capital costs and operating costs. The treatment system involves the use of a stripping vessel in conjunction with a heating apparatus. All ele... | 09/06/2005 |
| 6916945 | NOx treated mixed metal oxide catalyst A catalyst comprising a mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an u... | 07/12/2005 |
| 6841699 | Recalcined catalyst A mixed metal oxide, which may be an orthorhombic phase material, is improved as a catalyst for the production of unsaturated carboxylic acids, or unsaturated nitriles, from alkanes, or mixtures of alkanes and alkenes, by: contacting with a liquid contacting member ... | 01/11/2005 |
| 6825380 | Promoted multi-metal oxide catalyst A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alken... | 11/30/2004 |
| 6809219 | Catalyst useful for oxidation of alkanes A catalyst useful for the gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids is disclosed. Processes for preparing the catalyst and using the catalyst to convert alkanes to unsaturated aldehydes or carboxylic acids are also disclosed. ... | 10/26/2004 |
| 6790988 | Ir and/or Sm promoted multi-metal oxide catalyst A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alken... | 09/14/2004 |
| 6746983 | Hydrothermally synthesized MO-V-M-X oxide catalysts for the selective oxidation of hydrocarbons Hydrothermally synthesized catalysts comprising a mixed metal oxide are utilized to produce unsaturated carboxylic acids by the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, in the presence thereof; or to produce unsaturated nitrites b... | 06/08/2004 |
| 6740620 | Single crystalline phase catalyst An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield. ... | 05/25/2004 |
| 6734136 | IR and/or SM promoted multi-metal oxide catalyst A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alken... | 05/11/2004 |
| 6545176 | Apparatus and process for the high yield production of methyl methacrylate or methacrylic acid A high yield process for the production of methyl methacrylate or methacrylic acid and an apparatus for increasing the yield in a process for the production of methyl methacrylate or methacrylic acid are disclosed.... | 04/08/2003 |
| 6518216 | Catalyst useful for oxidation of alkanes A catalyst useful for the gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids is disclosed. Processes for preparing the catalyst and using the catalyst to convert alkanes to unsaturated aldehydes or carboxylic acids are also disclo... | 02/11/2003 |
| 6515138 | Transesterification process An improved transesterification process is disclosed for forming certain (meth)acrylates by the transesterification of an alkyl (meth)acrylate with a hydroxyl alkyl imidazolidin-2-one using a transesterification catalyst in the presence of a polymerizatio... | 02/04/2003 |
| 6514903 | Process for preparing a catalyst An improved catalyst including a compound of the formula (I) Aa Mm Nn Xx Oo (I) wherein 0.25 | 02/04/2003 |
| 6514901 | Process for preparing a catalyst A process for preparing a catalyst is disclosed. The catalyst is useful for the gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids.... | 02/04/2003 |
| 6514468 | Catalyst system using flow-through radiation shielding This invention relates to an improved catalyst system utilizing flow through radiation shielding of the reaction zone and to processes for using the catalyst system for the production of hydrogen cyanide. The process has decreased methane usage while main... | 02/04/2003 |
| 6509494 | Low odor reactive coalescent A process is provided for preparing a low odor composition containing a dicyclopentenyl ester including the steps of preparing a distillation mixture containing the dicyclopentenyl ester and from 10 to 10,000 parts per million by weight based on weight of... | 01/21/2003 |
| 6506930 | Process for preparing alkyl (meth)acrylates A process for preparing alkyl acrylates is disclosed. The process provides for the synthesis of alkyl (meth)acrylates, hydrolysis of process impurities into starting materials and separation of starting materials and reaction products in one reactor.... | 01/14/2003 |
| 6504053 | Promoted multi-metal oxide catalyst A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane a... | 01/07/2003 |
| 6500982 | Process for preparing (meth) acrylic acid This invention relates to a process for preparing (meth)acrylic acid, whereby turndown control is utilized to maintain optimal distillation column performance in the dehydration of aqueous (meth)acrylic acid to provide a (meth)acrylic acid solution.... | 12/31/2002 |
| 6499412 | Method of firebox temperature control for achieving carbon monoxide emission compliance in industrial furnaces with minimal energy consumption The present invention provides a novel method of controlling the incineration temperature of industrial waste incineration processes such that the incineration emissions products comply with governmental regulations and operating and capital costs are min... | 12/31/2002 |
| 6472552 | Promoted multi-metal oxide catalyst A promoted multi-metal oxide catalyst is useful for the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane, or a mixture of an alkane and an alke... | 10/29/2002 |
| 6461996 | Halogen promoted multi-metal oxide catalyst A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane a... | 10/08/2002 |
