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7569734 |
Method of using rhodium quinonoid catalysts
In accordance with aspects of the invention methods of using rhodium hydroquinone catalysts for the conjugate addition of boronic acids are disclosed.
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6911563 |
Reaction method utilizing diaphram type catalyst and apparatus therefor
A method for carrying out a reaction of one substance capable of being activated by a catalyst with another substance capable of reacting with said one substance activated, characterized in that...
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6762328 |
Process for production of MIBK using CD technology
A process for producing methyl isobutyl ketone includes introducing acetone into a catalytic distillation. Some of the acetone is converted to mesityl oxide (‘MSO’), water and, optionally,...
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6723882 |
Preparation of dialkyl ketones
Dialkyl ketones are prepared by reductive carbonylation of α-olefins by means of carbon monoxide and hydrogen in the presence of a catalyst system comprising (a) palladium or a palladium...
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6703528 |
Process for producing carbonyl or hydroxy compound
There are disclosed are a method for producing at least one compound selected from a carbonyl compound and a hydroxy adduct compound by an oxidative cleavage or addition reaction of an olefinic...
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6479707 |
Process for producing 2-butanone and 2-butanol
The present invention provides a process for producing 2-butanone and 2-butanol under comparatively mild conditions with a decreased number of steps by direct oxidization of a hydrocarbon, which is...
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6395904 |
Binuclear non-heme iron catalysts
The subject invention provides a binuclear metal complex having structure (I) wherein M 1 , and M 2 are independently selected from the group consisting of Fe, Co, Mn and Ru; wherein m and n are...
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6288281 |
Direct carbonylation of paraffins using an ionic liquid catalyst
A process for the carbonylation of saturated hydrocarbons to give an oxygenated saturated hydrocarbon is disclosed and claimed. The process involves using an acidic ionic liquid catalyst to...
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6160183 |
Direct oxidation of cycloalkanes
A catalytic process is disclosed for oxidizing cycloalkanes directly to form, in a single step, a mixture containing the corresponding alcohol and ketone. In particular, the invention relates to...
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6140544 |
Process for preparing acetaldehyde from ethylene and oxygen
A process for oxidizing a reaction gas in the presence of a catalyst solution comprising a) oxidizing the reaction gas in a reactor in the presence of the catalyst solution, a reaction mixture...
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6124505 |
Process for the partial oxidation of hydrocarbon and process for preparation of oxygen-containing organic compound
The invention provides a catalyst for partial oxidation of hydrocarbon in the presence of a reducing compound, the catalyst comprising ultra-fine gold particles immobilized on a titanium-containing...
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6121498 |
Method for producing acetaldehyde from acetic acid
A method of producing acetaldehyde hydrogenates acetic acid in the presence of an iron oxide catalyst containing between 2.5 and 90 wt % Pd, more preferably 10 and 80 wt % Pd and most preferably 20...
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5710342 |
Process for preparing carbonyl compounds by catalysed oxidation of olefins and catalysts present microemulsions
Carbonyl compounds can be prepared by catalytic oxidation of olefins with oxygen or oxygen-containing gases in a microemulsion (ME) as reaction medium and catalyst support. The catalysts present in...
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5623090 |
Method for production of alcohol, ketone, and epoxide by oxidation of hydrocarbon
An alcohol or a ketone or a mixture thereof is produced from a saturated hydrocarbon or an epoxide is produced from an unsaturated hydrocarbon by passing a mixture comprising of molecular hydrogen,...
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5557014 |
Catalytic system for olefin oxidation to carbonyl products
The present invention provides aqueous catalyst solutions useful for oxidation of olefins to carbonyl products, comprising a palladium catalyst and a polyoxoacid or polyoxoanion oxidant comprising...
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5414137 |
Process for preparing carbonyl compounds
An improved process for preparing carbonyl compounds by oxidizing olefins is disclosed. The process comprises oxidizing an olefin with oxygen or an oxygen containing gas in the presence of a...
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5237103 |
Procsss for preparing carbonyl compounds
The process for preparing the carbonyl compound involves oxidizing the olefins in the presence of the catalyst composed of the palladium compound and the polyoxoanion compound in a mixture of water...
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5149880 |
Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxygen in the reaction of organic compounds
Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxgen are disclosed. Processes whereby activated hydrogen peroxide or...
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5126490 |
Process for the catalytic oxidation of olefins to carbonyl compounds
A process is disclosed for the catalytic oxydation of olefins to carbonyl compounds with molecular oxygen at elevated temperatures in the presence of rhodium oxide on a support. The process is...
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5103064 |
Process for producing a carbonyl compound
A carbonyl compound is produced efficiently, stably and with good productivity by oxidizing a chain olefin in an alcoholic solvent in the presence of a catalyst system comprising palladium and a...
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4885399 |
Process for obtaining substantially aldehyde-free ketone products
Tischtschenko condensation of aldehydes is used to remove aldehydes from dry ketone-containing streams. The tischtschenko condensation is used to condense the aldehydes into esters whose boiling...
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4847421 |
Palladium-nitrile ligand catalyst system and oxidation processes
A substantially chloride-free palladium oxidation system, comprising a palladium component, a copper component, and a ligand is described. The Wacker system, consisting of palladium and copper...
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4806692 |
Process for producing an oxygen-containing organic compound from olefins
A process for producing an oxygen-containing organic compound by oxidizing olefins under milder conditions is provided, which process comprises oxidizing an olefin activated by its complex...
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4769464 |
Process for the preparation of monocarbonyl or biscarbonyl compounds
The invention relates to a process for the preparation of monocarbonyl or biscarbonyl compounds by reacting organic carbon compounds having one or more olefinic or aromatic double bonds in the...
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4620038 |
Process for producing methyl ethyl ketone
A process for producing methyl ethyl ketone selectively and with a high yield by oxygen-oxidizing 1-butene under mild conditions is provided, which process is characterized by using a composite...
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4605776 |
Process for producing acetone
A process for producing acetone selectively and with a high yield by oxidizing propylene by means of the combined oxygen in an oxygen complex under milder conditions and at a single stage is...
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4568770 |
Process for the conversion of a terminal carbon-carbon double bond of an olefinic hydrocarbon to carbonyl groups
Terminal carbon-carbon double bonds of olefinic hydrocarbons are converted to carbonyl groups by reacting the olefin with oxygen in the presence of (a) a catalyst comprising (i) one or more of the...
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4560804 |
Catalytic process for the manufacture of ketones
An improved process is provided for forming ketones from the corresponding olefins by vapor phase oxidation of the olefin in the presence of water vapor, and optionally in the additional presence...
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4560803 |
Catalysts and process for oxidation of olefins to ketones
An improved process is provided for forming ketones from the corresponding olefins by vapor phase oxidation of the olefin in the presence of molecular oxygen and water vapor employing a...
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4551555 |
Process for the production of carbonyl compounds
In the process for producing a carbonyl compound by contacting olefin and oxygen or oxygen-containing gas with a catalyst in the presence of water, a catalyst comprising a carrier and (a) rhodium,...
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4550212 |
Catalysts
A Pd/heteropolyacid/boric acid catalyst system, when used with proper diluents, improves the oxidation of olefins to ketones, while reducing scum and deposits on reactor surfaces.
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4532362 |
Olefin oxidation catalyst
The use of fluorocarbons during the multiphase oxidation of olefins to ketones with Wacker-type catalysts improves reaction efficiency.
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4507507 |
Catalysts
A Pd/heteropolyacid/surfactant catalyst system, when used with proper diluents, improves the oxidation of olefins to ketones, while reducing corrosive effects.
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4507506 |
Alpha-olefin conversion
The conversion of long-chain alpha-olefins to methyl ketones can be efficiently carried out using reaction systems containing palladium, a co-catalyst, and an aqueous solvent system.
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4481373 |
Method of manufacturing ketones
The invention relates to a method for the manufacture of ketones which comprises oxidizing an n-olefin in the presence of a catalyst containing palladium, copper, a halogen, and at least one of...
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4434082 |
Palladium/heteropolyacid/surfactant catalyst system
A Pd/heteropolyacid/surfactant catalyst system, when used with proper diluents, improves the oxidation of olefins to ketones, while reducing corrosive effects.
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4419525 |
Recovery and rejuvenation of Wacker-type catalysts
Wacker-type oxidation catalysts can be recovered and rejuvenated for further use by separating catalyst solids from the reaction mixture and, optionally, adjusting pH.
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4404397 |
High conversion of C.sub.3 and C.sub.4 olefins to corresponding unsaturated aldehydes and acids with stable molybdenum catalysts
A stabilized heteropoly molybdate catalyst precursor in calcined form and containing anionic molybdenum in defect state is surface impregnated with certain metal cations. The stabilized precursor...
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4322562 |
Oxidation process using metal nitro or nitrosyl complex
An oxidation process in which a metal nitro complex transfers an oxygen atom from the nitro ligand to a substrate; especially such process conducted cyclically or catalytically using molecular...
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4314087 |
Methods of synthesizing hexafluoroisopropanol from impure mixtures and synthesis of a fluoromethyl ether therefrom
Hexafluoropropylene may be conventionally oxidized to form an impure mixture comprising hexafluoroacetone and residual hexafluoropropylene, which materials are separable only with difficulty. The...
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4271320 |
Process for producing a higher carbonyl compound
An industrially suitable process for producing a higher carbonyl compound by the oxidation of an olefinic compound having at least six carbon atoms is provided. Said improved process comprises...
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4237331 |
Olefin oxidation process
Olefins are oxidized to carbonyl compounds, for example, 2-hexene to a mixture of 2-hexanone and 3-hexanone, with a palladium/copper/boric acid catalyst and a suitable surfactant or phase transfer...
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4237073 |
Process for the manufacture of acetaldehyde
Process for the manufacture of acetaldehyde by reaction of ethylene and oxygen in the presence of an aqueous solution of palladium and copper chloride, in which continuously part of the latter...
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4220604 |
Oxidative rearrangement of olefins
An isoolefin is converted to a ketone, e.g., isobutylene to methyl ethyl ketone, by an oxidative rearrangement in a two-phase diluent system in the presence of free oxygen, a suitable surfactant,...
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4195039 |
Heterogeneous phase oxidation of olefins to ketones
Process for manufacturing solid catalysts, useful for oxidizing olefins containing from 2 to 16 carbon atoms per molecule to the corresponding carbonyl derivatives, comprising the step of...
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4155879 |
Process for manufacturing supported bimetallic catalysts useful for the heterogeneous phase oxidation of olefins to ketones
Process for manufacturing solid catalysts, useful for oxidizing olefins containing from 2 to 16 carbon atoms per molecule to the corresponding carbonyl derivatives, comprising the step of...
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4085145 |
Process for manufacturing carbonyl compounds by oxidation with molecular oxygen of olefinic compounds in liquid phase in the presence of soluble bimetallic catalysts
Carbonyl compounds are manufactured by oxidation of olefines with molecular oxygen in the presence of a catalytic system comprising both a specific rhodium compound and a specific compound of a...
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4031135 |
Manufacture of acrylic acid by oxidation of propylene with oxygen-containing gases in two separate catalyst stages
In the oxidation of propylene to acrylic acid in the gas phase in two spatially separate oxidation stages, a part of the off-gas, which has been freed from condensable products, is fed to the...
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3993593 |
Catalysts for the production of carbonyl compounds
A one-step process is described for preparing carbonyl compounds by the oxidation of an olefin with oxygen in the presence of steam. A novel catalyst is used which is prepared by incorporating...
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3965185 |
Oxidation of olefins to ketones and aldehydes
Hydrocarbon olefins are oxidized to carbonyl compounds having the same number of carbon atoms by contacting the olefin with a Group VIII metal containing catalyst in the presence of ammonium...
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