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Class 558/318 - Ammonia utilized


Subclass of Class 558 - Organic compounds -- part of the class 532-570 series
Definition: Processes wherein there is utilitzed ammonia.
No. of patents: 27
Last issue date: 11/13/2007


NumberTitleIssue Date
7294734Process 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
7262316Process for producing aromatic nitrile compound
A novel process for industrially producing an aromatic nitrile compound represented by the following general formula (3): characterized in that one of an aromatic hydroxymethyl compound, an aromatic alkoxymethyl ...
08/28/2007
7087551Catalyst for use in catalytic oxidation or ammoxidation of propane or isobutane in the gaseous phase
Disclosed is an oxide catalyst comprising an oxide represented by the formula Mo1VaNbbXcYdZeQfOn (wherein: X is at least one element selected from the group consisting of Te and ...
08/08/2006
7015173High 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
7009075Process for the selective conversion of alkanes to unsaturated carboxylic acids
The invention disclosed is a process for the selective conversion of an alkane to an unsaturated carboxylic acid in a one-step process with a mixed metal oxide catalyst composition having the general formula: MoVaNbbTecSb
03/07/2006
6825380Promoted 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
6645906High 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 alk...
11/11/2003
6610629Process for producing an oxide catalyst for oxidation or ammoxidation
Disclosed is a process for producing an oxide catalyst comprising, as component elements, molybdenum (Mo), vanadium (V), at least one element selected from the group consisting of the two elements of antimony (Sb) and tellurium (Te), and niobium (Nb), whe...
08/26/2003
6589907Zn and/or Ga 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...
07/08/2003
6407280Promoted 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...
06/18/2002
6187943Process for preparing carbocyclic or heterocyclic nitriles by vapor phase ammoxidation
The present invention provides a process for preparing carbocyclic or heterocyclic nitrites by the vapor phase contact ammoxidation of carbocyclic compounds or heterocyclic compounds, in which the reaction is carried out effectively without the increase o...
02/13/2001
6166241Process for the simultaneous preparation of acrylonitrile and arcylic acid
The present invention relates to a method for the simultaneous production of acrylonitrile and acrylic acid by reacting propane with ammonia and oxygen in the gas phase catalytic oxidation in the presence of a metal oxide catalyst containing vanadium and ...
12/26/2000
6143690Ammoxidation catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutane
An ammoxidation catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutane, which comprises a compound oxide and a silica carrier having supported thereon the compound oxide, wherein the compound oxide comprises molybdenum,...
11/07/2000
6083869Method 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
6063728Ammoxidation 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
5395974Lewis acid catalyzed ammonolysis of nylon
The present invention relates to a method of reacting polyamides or mixtures thereof with ammonia to obtain a mixture of monomers. The reaction is carried out in the presence of certain Lewis Acid catalyst precursors....
03/07/1995
5302756Ammonolysis of nylon
Useful monomeric products are obtained in the reaction of nylon 6,6 with ammonia. Increased yield of monomer products from nylon 6,6 is obtained from ammonolysis when a mixture with nylon 6 is employed....
04/12/1994
5262547Process for the production of petrochemicals
Petrochemicals are produced by the vapor phase reaction of a hydrocarbon with substantially pure oxygen in the presence of a suitable catalyst. In the improved process, the principal product is removed, carbon monoxide, present in the reactor effluent as ...
11/16/1993
5241111Processes for producing 5-fluorobenzoic acids and their intermediates
A process for producing a 5-fluorobenzoic acid of the formula (V), which comprises trichloromethylating a fluorobenzene of the formula (I) to obtain a 5-fluorobenzotrichloride of the formula (II), then reacting it with aqueous ammonia to obtain a 5-fluoro...
08/31/1993
5231214Process for producing nitriles
A process for producing a nitrile, which comprises subjecting an alkane and ammonia in the gaseous state to catalytic oxidation in the presence of an oxide of the formula: Moa Vb Tec Nbd Xx On ...
07/27/1993
5179215Process for the production of petrochemicals
An improved process is provided for the production of a petrochemical by the vapor phase reaction of a hydrocarbon with an oxygen-containing gas in the presence of a suitable catalyst to produce a flammable gaseous product stream comprising the desired pe...
01/12/1993
5049692Catalytic conversion of alkanes to nitriles, and a catalyst therefor
Disclosed herein is a process for producing a nitrile which comprises subjecting an alkane to a gas-phase catalytic oxidation reaction with ammonia in the presence of a complex oxide solid catalyst composed of molybdenum, vanadium, tellurium and niobium. ...
09/17/1991
4335010Preparation of muconic acid mononitriles and copper(II)-ammonia reagent therefor
Substituted and unsubstituted phenols, catechols and orthobenzoquinones are converted to muconic acid mononitriles by reaction with copper(II)-ammonia reagents. The copper(II)-ammonia reagents can be prepared by the reaction of cuprous chloride with oxyge...
06/15/1982
4277419Preparation of muconic acid mononitriles and copper(II)-ammonia reagent therefor
Substituted and unsubstituted phenols, catechols and orthobenzoquinones are converted to muconic acid mononitriles by reaction with copper(II)-ammonia reagent. The copper(II)-ammonia reagents can be prepared by the reaction of cuprous chloride with oxygen...
07/07/1981
4272451Acetonitrile process with improved catalysts
In the process for preparing acetonitrile from CO, NH3 and H2, molybdenum catalysts containing manganese or alkaline earths, and optionally alkali metals, are employed to improve selectivity to acetonitrile....
06/09/1981
4272452Process for preparing acetonitrile
A process for preparing acetonitrile by reaction of carbon monoxide, ammonia and hydrogen at elevated temperature in contact with metal-containing catalysts, in which carbon dioxide is utilized to improve selectivity to acetonitrile. At elevated pressure,...
06/09/1981
4179462Process for preparing acetonitrile
A process for preparing acetonitrile by high temperature reaction of carbon monoxide, hydrogen and ammonia over a transition metal in reduced valence state as catalyst....
12/18/1979
 
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