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| Number | Title | Issue Date |
| 7294734 | Process for converting a hydrocarbon to an oxygenate or a nitrile This invention relates to a process for converting a hydrocarbon reactant to a product comprising an oxygenate or a nitrile, the process comprising: (A) flowing a reactant composition comprising the hydrocarbon reactant, and oxygen or a source of oxygen, and optiona... | 11/13/2007 |
| 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 |
| 6864384 | Preparation of vanadium antimony oxide based catalysts using nano-scale iron A process for the manufacture of an improved iron promoted vanadium antimony oxide catalyst useful in the ammoxidation of propane to acrylonitrile wherein the source of iron (i.e. an iron containing compound such as Fe2O3) employed in the catal... | 03/08/2005 |
| 6667020 | Ammoxidation of a mixture of ketones to acetonitrile and HCN A process increasing the yield of both HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a crude ketone and/or a mixture of at least two ... | 12/23/2003 |
| 6596897 | Catalyst for producing acrylonitrile A fluidized-bed catalyst for producing acrylonitrile by the ammoxidation of propylene, which comprises a silica carrier and a composite having the following formula: Aa Cc Dd Naf Feg Bih Mi... | 07/22/2003 |
| 6413485 | Ammoxidation of a mixture of ketones to acetonitrile and HCN A process increasing the yield of both HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a crude ketone and/or a mixture of at least two ... | 07/02/2002 |
| 6171571 | Crystalline multinary metal oxide compositions, process for preparing and processes for using the composition A new family of crystalline metal oxide compositions have been synthesized. These compositions are described by the empirical formula: An NbMx M'y M"m Op where A is an alkali metal cation, ammonium ion and mixt... | 01/09/2001 |
| 6143916 | Ammoxidation catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutane by ammoxidation An ammoxidation catalyst comprising a compound oxide of Mo, V, Nb, and at least one element selected from the group consisting of Te and Sb, wherein the compound catalyst exhibits an X-ray diffraction pattern satisfying the following relationship: 0.40ࣘ... | 11/07/2000 |
| 6087524 | Preparation of vanadium antimonate based catalysts using Sno2 .multidot.xH2 o A method of preparing a catalyst having the elements and the proportions indicated by the following empirical formula: VSbm Aa Dd Ox where A is one or more Ti, Sn, where Sn is always present D is one or more Li, Mg, Ca, S... | 07/11/2000 |
| 6087525 | Highly active and selective catalysts for the production of unsaturated nitriles, methods of making and using the same An improved catalyst for the production of unsaturated nitrites from their corresponding olefins, the catalyst composition having the atomic ratios described by the empirical formula Bia Mob Vc Sbd Nbe | 07/11/2000 |
| 6083869 | Method for preparing ammoxidation catalysts The present invention relates to a process for the preparation of mixed vanadium, antimony and iron oxides and to their use as catalysts for the ammoxidation of alkanes. The process for the preparation of a mixed oxide defined above is characterized in th... | 07/04/2000 |
| 6072070 | Vanadium/antimony/titanium mixed oxide and process of use in vapor phase ammoxidation of an alkane Mixed oxide vanadium/antimony/titanium ammoxidation catalysts, particularly suited for the ammoxidation of alkanes and exhibiting X-ray diffraction spectra which are characteristic of a crystallographic phase of rutile TiO2, are prepared by (a)... | 06/06/2000 |
| 6063728 | Ammoxidation catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutane by ammoxidation An ammoxidation catalyst comprising a compound oxide of Mo, V, Nb, and at least one element selected from the group consisting of Te and Sb, wherein the compound catalyst exhibits an X-ray diffraction pattern satisfying the following relationship: 0.40ࣘ... | 05/16/2000 |
| 6043185 | Gallium promoted molybdenum vanadium-antimony-oxide based catalyst for selective paraffin ammoxidation A catalyst useful in the manufacture of acrylonitrile or methacrylonitrile by the catalytic reaction in the vapor phase of a paraffin selected from propane and isobutane with molecular oxygen and ammonia by catalytic contact of the reactants in a reaction... | 03/28/2000 |
| 6020533 | Hydrocarbon conversion processes using crystalline manganese phosphate compositions Hydrocarbon conversion processes using a new family of crystalline manganese phosphate compositions is disclosed. These compositions have an extended network; which network can be a one-, two-, or three-dimensional network. The composition has an empirica... | 02/01/2000 |
| 5985788 | Process for making (meth)acrylonitriles A process for the preparation of (meth)acrylonitriles following ammoxidation process comprising catalytically oxidizing at least one saturated hydrocarbon selected from the group consisting of propane and isobutane with a mixed gas containing molecular ox... | 11/16/1999 |
| 5747411 | Supported catalysts which are suitable for ammonoxidation Supported catalysts which are suitable for ammonoxidation, comprising a) a spherical or approximately spherical support material which essentially comprises aluminum oxide, silicon dioxide, titanium dioxide and/or zirconium dioxide and whose bulk density is fr... | 05/05/1998 |
| 5576469 | Paraffin ammoxidation using vanadium antimony oxide based catalysts with halide promoters The process for the ammoxidation of a C3 to C5 paraffinic hydrocarbon to its corresponding ,ଲ-unsaturated hydrocarbon comprising reacting the C3 to C5 paraffinic hydrocarbon with ammonia and oxygen ... | 11/19/1996 |
| 5466837 | Process for the production of hydrocarbon partial oxidation products An ethylene stream which contains ethane as an impurity or a propylene stream which contains propane as an impurity is subjected to adsorption at a temperature of 50° to 200° C. in a bed of adsorbent which selectively adsorbs ethylene or propylene, ther... | 11/14/1995 |
| 5466857 | Process for reduction of waste material during manufacture of acrylonitrile A process for the reduction in the amount of waste material generated during the manufacture of acrylonitrile comprising introducing an additional amount of oxygen containing gas, preferably air, in the substantial absence of any oxygenate compounds, into... | 11/14/1995 |
| 5268497 | Process for the production of nitriles A process for the production of an ethylenically unsaturated nitrile from a hydrocarbon feed stream comprised of a mixture of an alkene and an alkane by reaction with an oxygen-containing gas and ammonia. The alkene is converted to unsaturated nitrile by ... | 12/07/1993 |
| 5264608 | Process for the production of nitriles from alkenes A process for the production of an ethylenically unsaturated nitrile from a hydrocarbon feed stream comprised of a mixture of an alkene and an alkane by reaction with an oxygen-containing gas and ammonia. The alkene is converted to unsaturated nitrile by ... | 11/23/1993 |
| 5258543 | Method for ammoxidation of olefins Disclosed is a method for ammoxidizing C3 to C5 mono-olefins to ,ଲ-mono-unsaturated acyclic nitriles having 3 to 5 carbon atoms and HCN by introducing such mono-olefins molecular oxygen and ammonia into a reaction zone i... | 11/02/1993 |
| 5256810 | Method for eliminating nitriding during acrylonitrile production An improved process for substantially eliminating, preferably completely eliminating of nitride formation on feed conduits for fluid bed catalyst reactors used in the manufacture of unsaturated nitriles from corresponding olefins, NH3 and oxyge... | 10/26/1993 |
| 5214016 | Method of making catalysts containing vanadium, antimony and tin Disclosed is a method of making a catalyst containing vanadium antimony and tin in the oxide state which comprises making an aqueous slurry of a mixture of source batch materials comprising compounds of the elements to be included in the final catalyst fo... | 05/25/1993 |
| 5079207 | Catalyst for ammoxidation of paraffins Disclosed is a process for making an , ଲ-unsaturated monoitrile by the catalytic reaction of a paraffin containing 3-5 carbon atoms with molecular oxygen and ammonia by catalytic contact of the foregoing reactants in a reaction zone with a me... | 01/07/1992 |
| 5015756 | Process for the production of nitriles An improved process is provided for the production of nitriles from hydrocarbons by reaction with an oxygen-containing gas comprising oxygen, air or a gas enriched in oxygen relative to air and ammonia in the presence of a suitable catalyst. In the proces... | 05/14/1991 |
| 4960921 | Multiply promoted MN-SB oxide catalysts Certain novel multiply promoted Mn-Sb oxides are superior catalysts for the ammoxidation of olefins to the corresponding unsaturated nitriles, the selective oxidation of olefins to unsaturated aldehydes and acids, and the oxydehydrogenation of olefins to ... | 10/02/1990 |
| 4877764 | Catalyst system for ammoxidation of paraffins Disclosed is ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (... | 10/31/1989 |
| 4871706 | Catalyst for the ammoxidation of paraffins Disclosed is the reaction of C3 to C4 paraffins with O2 and NH3 to make ,ଲ-unsaturated nitriles and olefins, using certain complex metal oxide catalysts containing V, Sb, W and certain optional elem... | 10/03/1989 |
| 4868330 | Process for the production of nitriles An improved process is provided for the production of nitriles from hydrocarbons by reaction with an oxygen-containing gas comprising oxygen, air or a gas enriched in oxygen relative to air and ammonia in the presence of a suitable catalyst. In the proces... | 09/19/1989 |
| 4855275 | Catalyst performance improvement via separate boron addition A process for improving the performance of an ammoxidation catalyst comprising contacting said catalyst with a boron containing or heat decomposable boron compound to deposit boron on the catalyst.... | 08/08/1989 |
| 4801731 | Preparation of acrylonitrile An improved process for the preparation of acrylonitrile by the reaction of propylene, ammonia and oxygen in a fluidized catalyst bed in which the propylene and ammonia are premixed and fed in downwardly streams that are directly aligned with upwardly dir... | 01/31/1989 |
| 4769355 | Catalyst system for ammoxidation of paraffins Ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (2) a mixture ... | 09/06/1988 |
| 4767739 | Catalyst system for ammoxidation of paraffins Disclosed is ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (... | 08/30/1988 |
| 4757038 | Regeneration of iron-antimony metallic oxide catalysts Iron-antimony metallic oxide catalysts which have become deactivated after being used for the production of aldehydes, acids, nitriles, or dienes through oxidation, ammoxidation, or oxidative dehydrogenation of organic compounds in fluidized-bed reactors ... | 07/12/1988 |
| 4599430 | Nitrogenation of hydrocarbons, including the production of maleimide A process is provided for the nitrogenation of hydrocarbons, resulting in the production of cyclic imides and nitriles from hydrocarbons contacted with molecular oxygen and a nitrogenating agent, including ammonia or primary amines, in the presence of an ... | 07/08/1986 |
| 4436671 | Process for producing unsaturated aliphatic dinitriles Unsaturated aliphatic dinitriles such as fumaronitrile and maleonitrile can be produced in high yields by ammoxidation of C4 straight-chain hydrocarbons in the presence of a catalyst containing as active components: [A] at least one kind of oxi... | 03/13/1984 |
| 4413155 | Ammoxidation of olefins with novel antimonate catalysts Oxide complex catalysts comprising Fe-Sb-Bi-Ox promoted with a wide variety of different elements have been found to be especially useful in the ammoxidation of olefins to nitriles such as acrylonitrile and methacrylonitrile. Not only are the d... | 11/01/1983 |
| 4410450 | Process for producing fluid catalyst having good activity from coarse catalyst A process for producing a fluid catalyst having good activity from a coarse catalyst wherein said fluid catalyst is suitable for oxidation, ammoxidation or oxidative dehydrogenation reaction of hydrocarbons which comprises crushing a fluid catalyst, a gre... | 10/18/1983 |
