69results about "Electrolytic organic oxidation" patented technology

Hydrocarbons may be formed from six carbon sugars. This process involves obtaining a quantity of a hexose sugar. The hexose sugar may be derived from biomass. The hexose sugar is reacted to form an alkali metal levulinate, an alkali metal valerate, an alkali metal 5-hydroxy pentanoate, or an alkali metal 5-alkoxy pentanoate. An anolyte is then prepared for use in a electrolytic cell. The anolyte contains the alkali metal levulinate, the alkali metal valerate, the alkali metal 5-hydroxy pentanoate, or the alkali metal 5-alkoxy pentanoate. The anolyte is then decarboxylated. This decarboxylating operates to decarboxylate the alkali metal levulinate, the alkali metal valerate, the alkali metal 5-hydroxy pentanoate, or the alkali metal 5-alkoxy pentanoate to form radicals, wherein the radicals react to form a hydrocarbon fuel compound.

A reactor and process capable of concurrently producing electric power and selectively oxidizing gaseous components in a feed stream, such as hydrocarbons to unsaturated products, which are useful intermediates in the production of liquid fuels. The reactor includes an oxidation membrane, a reduction membrane, an electron barrier, and a conductor. The oxidation membrane and reduction membrane include an MIEC oxide. The electron barrier, located between the oxidation membrane and the reduction membrane, is configured to allow transmission of oxygen anions from the reduction membrane to the oxidation membrane and resist transmission of electrons from the oxidation membrane to the reduction membrane. The conductor conducts electrons from the oxidation membrane to the reduction membrane.

Disclosed is an organic electrolysis reactor for performing an electrolytic oxidation reaction of a system comprising a substrate and a reductant, comprising: a casing; an anode which comprises an anode active material and which is ion-conductive or active species-conductive; a cathode which comprises a cathode active material and which is ion-conductive or active species-conductive; and means for applying a voltage between the anode and the cathode, wherein the means for applying a voltage is disposed in the outside of the casing and connected to the anode and the cathode, wherein the anode and the cathode are disposed in spaced relationship in the casing to partition the inside of the casing into an intermediate compartment between the anode and the cathode, and an anode compartment on the outside of the anode. Also disclosed is a method for producing a chemical compound by performing an electrolytic oxidation reaction of a system comprising a substrate and a reductant, using the organic electrolysis reactor mentioned above.

Solution-phase (e.g., homogeneous) or surface-immobilized (e.g., heterogeneous) electrode-driven oxidation catalysts based on iridium coordination compounds which self-assemble upon chemical or electrochemical oxidation of suitable precursors and methods of making and using thereof are. Iridium species such as {[Ir(LX)x(H2O)y(μ-O)]zm+}n wherein x, y, m are integers from 0-4, z and n from 1-4 and LX is an oxidation-resistant chelate ligand or ligands, such as such as 2(2-pyridyl)-2-propanolate, form upon oxidation of various molecular iridium complexes, for instance [Cp*Ir(LX)OH] or [(cod)Ir(LX)] (Cp*=pentamethylcyclopentadienyl, cod=cis-cis,1,5-cyclooctadiene) when exposed to oxidative conditions, such as sodium periodate (NaIO4) in aqueous solution at ambient conditions.

A process for producing a fuel, which comprises the step of performing electrolysis on an alcoholic solution or a melt of a fatty acid or salt thereof or fatty acid ester or other derivative or precursor thereof, to decarboxylate said fatty acid or derivative, and produce a mixture of an ether and an alkene.

Solid membranes comprising an intimate, gas-impervious, multi-phase mixture of an electronically-conductive material and an oxygen ion-conductive material and / or a mixed metal oxide of a perovskite structure are described. Electrochemical reactor components, such as reactor cells, and electrochemical reactors are also described for transporting oxygen from any oxygen-containing gas to any gas or mixture of gases that consume oxygen. The reactor cells generally comprise first and second zones separated by an element having a first surface capable of reducing oxygen to oxygen ions, a second surface capable of reacting oxygen ions with an oxygen-consuming gas, an electron-conductive path between the first and second surfaces and an oxygen ion-conductive path between the first and second surfaces. The element may further comprise (1) a porous substrate, (2) an electron-conductive metal, metal oxide or mixture thereof and / or (3) a catalyst. The reactor cell may further comprise a catalyst in the zone which comprises a passageway from an entrance end to an exit end of the element. Processes described which may be conducted with the disclosed reactor cells and reactors include, for example, the partial oxidation of methane to produce unsaturated compounds or synthesis gas, the partial oxidation of ethanes substitution of aromatic compounds, extraction of oxygen from oxygen-containing gases, including oxidized gases, ammoxidation of methane, etc. The extraction of oxygen from oxidized gases may be used for flue or exhaust gas cleanup.

Solid membranes comprising an intimate, gas-impervious, multi-phase mixture of an electronically-conductive material and an oxygen ion-conductive material and / or a mixed metal oxide of a perovskite structure are described. Electrochemical reactor components, such as reactor cells, and electrochemical reactors are also described for transporting oxygen from any oxygen-containing gas to any gas or mixture of gases that consume oxygen. The reactor cells generally comprise first and second zones separated by an element having a first surface capable of reducing oxygen to oxygen ions, a second surface capable of reacting oxygen ions with an oxygen-consuming gas, an electron-conductive path between the first and second surfaces and an oxygen ion-conductive path between the first and second surfaces. The element may further comprise (1) a porous substrate, (2) an electron-conductive metal, metal oxide or mixture thereof and / or (3) a catalyst. The reactor cell may further comprise a catalyst in the zone which comprises a passageway from an entrance end to an exit end of the element. Processes described which may be conducted with the disclosed reactor cells and reactors include, for example, the partial oxidation of methane to produce unsaturated compounds or synthesis gas, the partial oxidation of ethane, substitution of aromatic compounds, extraction of oxygen from oxygen-containing gases including oxidized gases, ammoxidation of methane, etc. The extraction of oxygen from oxidized gases may be used for flue or exhaust gas cleanup.

The present invention relates to a method for the production of an olefin from at least one renewable natural raw material. More specifically, the present invention refers to a method whereby is obtained ethylene or propylene at high yield and high productivity by means of the anodic electrodecarboxylation reaction of carboxylic acids, respectively propionic acid and butyric acid, produced from fermentation, preferably of sugars. The method for generating the olefin is simple, has a low cost, and provides low emissions of greenhouse gasses of fossil origin.

A cosmetic or pharmaceutical composition is provided. The composition contains a mixture of oils prepared by Kolbe electrolysis of branched chain fatty acids and mixtures of branched chain fatty acids with straight chain fatty acids. The fatty acids containing from 3 to 26 carbon atoms. The oils are a mixture of oils with different spreading rates (spreading cascade).

A. providing an electrochemical cell with a first graphitic electrode and a second conductive electrode, wherein the first graphitic electrode is made of any one of HOPG, natural graphite, and synthetic graphite, the first graphitic electrode is held at a most positive potential, and the second conductive electrode is conductive, wherein a current passes through the electrochemical cell; B. providing an electrolyte of a solvent in the electrochemical cell, wherein the electrolyte has specific oxygen containing salts and base. Thereby, the graphitic electrode is functionalized and exfoliated by applying a voltage between the two electrodes thus producing graphene oxide.

The present disclosure provides a method of electroreducing carbon dioxide (CO2). The method of electroreducing carbon dioxide may include feeding a first stream comprising carbon dioxide into a chamber through a chamber inlet, the chamber containing a gas diffusion cathode and a gas diffusion anode; feeding a second stream comprising glycerol or glucose into the chamber, the second stream having a pH of 12 to 14; and applying an electrical potential between the gas diffusion anode and the gas diffusion cathode to reduce the carbon dioxide and oxidize the glycerol or glucose.

Hydrocarbons may be formed from six carbon sugars. This process involves obtaining a quantity of a hexose sugar. The hexose sugar may be derived from biomass. The hexose sugar is reacted to form an alkali metal levulinate, an alkali metal valerate, an alkali metal 5-hydroxy pentanoate, or an alkali metal 5-alkoxy pentanoate. An anolyte is then prepared for use in a electrolytic cell. The anolyte contains the alkali metal levulinate, the alkali metal valerate, the alkali metal 5-hydroxy pentanoate, or the alkali metal 5-alkoxy pentanoate. The anolyte is then decarboxylated. This decarboxylating operates to decarboxylate the alkali metal levulinate, the alkali metal valerate, the alkali metal 5-hydroxy pentanoate, or the alkali metal 5-alkoxy pentanoate to form radicals, wherein the radicals react to form a hydrocarbon fuel compound.

Solution-phase (e.g., homogeneous) or surface-immobilized (e.g., heterogeneous) electrode-driven oxidation catalysts based on iridium coordination compounds which self-assemble upon chemical or electrochemical oxidation of suitable precursors and methods of making and using thereof are. Iridium species such as {[Ir(LX)x(H2O)y(μ-O)]zm+}n wherein x, y, m are integers from 0-4, z and n from 1-4 and LX is an oxidation-resistant chelate ligand or ligands, such as such as 2(2-pyridyl)-2-propanolate, form upon oxidation of various molecular iridium complexes, for instance [Cp*Ir(LX)OH] or [(cod)Ir(LX)] (Cp*=pentamethylcyclopentadienyl, cod=cis-cis,1,5-cyclooctadiene) when exposed to oxidative conditions, such as sodium periodate (NaIO4) in aqueous solution at ambient conditions.

Provided is a synthesis method comprising a first step of producing a carbonate compound from carbon monoxide and an alcohol-based compound at an anode of a first electrochemical cell comprising a cathode and the anode, and a second step of synthesizing a first product by a dealcoholization reaction of the carbonate compound, wherein an alcohol-based compound eliminated in the second step is recycled in the first step.

The present invention provides an electrochemical method for producing diaryl iodonium compounds wherein application of an electric current to an electrochemical cell containing a reaction mixture composed of a solvent, an iodoaryl compound and an electrolyte forms an oxidizing agent in situ. In this first step, the oxidizing agent is subsequently converted into a stable oxidized iodoaryl intermediate, typically an iodosyl compound. The electric potential is removed and in a second step a target aryl compound is introduced to the reaction mixture to react with the oxidized iodoaryl intermediate to form a diaryl iodonium compound.

A catalyst comprising a first conjugated polymer material that forms an interface with a second material, wherein charge is separated from photo excited species generated in one or both of the first and second materials and subsequently participates in a reaction, electro-catalytic reactions or redox reactions.

There are provided: a solid polymer power generation or electrolysis method that does not require injection of energy from the outside and maintenance of a high temperature, and is capable of converting carbon dioxide to a useful hydrocarbon while producing energy, controlling the production amounts of the hydrocarbons or the like and a ratio sorted by kind of the hydrocarbons, improving utilization efficiency of a product, and simplifying equipment for separation and recovery; and a system for implementing the solid polymer power generation or electrolysis method. Carbon dioxide is supplied to the side of one electrode 111 of a reactor 110 having a membrane electrode assembly 113, hydrogen is supplied to the side of the other electrode 112, and the amounts of the hydrocarbons produced per unit time and the ratio sorted by kind of the hydrocarbons are changed by controlling a power generation voltage of the reactor 110.

A catalyst comprising Pt—Co alloy, or Pt—Co—Sn alloy or Pt—ComOn mixed metal oxides is disclosed to be used as a catalyst for the direct electrochemical oxidation of glucose or other simple sugars and carbohydrates at room temperature. The catalyst can be supported on metal electrodes, graphite electrodes, porous carbon electrodes, or gas diffusion electrodes. An electrode containing this catalyst will be used as the key component in a direct glucose-air fuel cell operating in alkaline media with a good room temperature performance. This catalyst can also be applied as a key electrode material in a glucose sensor to detect glucose concentration in neutral or alkaline medium. The preparation method of the catalyst, optimum composition, and results of glucose sensor and glucose fuel cell applications are disclosed.

The present invention discloses a method for converting biomass material into soluble substances by one-step, comprising: converting biomass materials into soluble substances by one-step by electrolyzing at a certain time under the condition of constant current using bipolar three-dimension-electrodes system, wherein bipolar three-dimension-electrodes system including an anode, a cathode, particle electrodes and electrolyte, and in electrolyzing process, the particle electrodes and the biomass materials being suspended in the electrolyte. The present invention also discloses a container for converting biomass materials into soluble substances by one-step, comprising: A tank which holds electrolyte at the interior thereof, wherein the side wall of the tank is provided with an opening, the opening is provided with a permeable membrane, and the opening also communicates with a discharge pipe; A pair of electrode plates which are immersed into the electrolyte by at least a part thereof, wherein the pair of electrode plates space from each other and connect to positive pole and negative pole of power supply respectively to form anode and cathode in energized state respectively; and, Particle electrodes which are in granular form and are suspended in the electrolyte. The present invention also discloses uses of soluble substances that are prepared by any one of the methods.

A solid substrate comprising a surface comprising an achiral array of atoms having thereupon a chiral metal oxide surface.

A catalyst for the electrolysis of water molecules and hydrocarbons, the catalyst including catalytic groups comprising A1-xB2-yB′yO4 spinels having a cubical M4O4 core, wherein A is Li or Na, B and B′ are independently any transition metal or main group metal, M is B, B′, or both, x is a number from 0 to 1, and y is a number from 0 to 2. In photo-electrolytic applications, a plurality of catalytic groups are supported on a conductive support substrate capable of incorporating water molecules. At least some of the catalytic groups, supported by the support substrate, are able to catalytically interact with water molecules incorporated into the support substrate. The catalyst can also be used as part of a photo-electrochemical cell for the generation of electrical energy.

Provided herein are processes and systems for oxidation of a hydrocarbon reactant to generate an oxidized hydrocarbon product; said process comprising: contacting a water oxidation electrocatalyst with said hydrocarbon reactant and water in the presence of a non-aqueous solvent; wherein an anodic bias is applied to said water oxidation electrocatalyst, thereby generating said oxidized hydrocarbon product; and wherein said water oxidation electrocatalyst comprises one or more transition metals other than Ru. Optionally, said water is provided in said non-aqueous solvent at a concentration less than or equal to 0.5 vol. %. Optionally, the magnitude of said anodic bias is selected to generate said oxidized hydrocarbon product characterized by selected product distribution.

A composition for oxidizing dimethyl ether includes an alloy supported on carbon, the alloy being of platinum, ruthenium, and palladium. A process for oxidizing dimethyl ether involves exposing dimethyl ether to a carbon-supported alloy of platinum, ruthenium, and palladium under conditions sufficient to electrochemically oxidize the dimethyl ether.

The present invention provides a process for producing an oxide from an alcohol compound, the process comprising the steps of causing silica gel to carry the alcohol compound thereon and an oxidative catalyst thereon, and oxidizing the alcohol compound in the presence of an oxidizing agent, giving an oxide higher in oxidizing degree than the alcohol compound, and also provides a process for producing an oxide from an alcohol compound, the process comprising the steps of causing silica gel to carry the alcohol compound, and subjecting the alcohol compound to an electrolytic oxidation, giving an oxide higher in oxidizing degree than the alcohol compound.

The current embodiment describes a process of flowing an oxidant species over the reducing side of an oxygen transport membrane. O2− anions are then continuously transported from the reducing side through the oxygen transport membrane to the oxidizing side where an organic compound is converted to a partially oxidized organic compound on the oxidizing side.