14results about "Organic oxidation" patented technology

The present invention is directed to a solid state binder composition, in particular for preparing mineral fiber products.

Disclosed in the present invention is a method for directly preparing a phenol and an aldehyde or a ketone from an alkyl aromatic hydrocarbon as a raw material on the basis of a selective carbon-carbon bond oxidative cleavage reaction. The method is carried out on the basis of the following steps: mixing an alkyl aromatic hydrocarbon as represented by general formula (I) with a photocatalyst, hydrobromic acid, and an organic solvent and enabling the mixture to react under the conditions of oxygen as an oxidant and light irradiation to simultaneously prepare a phenol compound as represented by general formula (II) and a ketone or aldehyde compound as represented by general formula (III). In the present invention, bulk alkyl aromatic hydrocarbons are used as raw materials for reaction to produce phenol, aldehyde, and ketone organic chemical raw materials. Compared with traditional synthesis methods, the present invention has many advantages such as inexpensive and readily available catalysts, mild reaction conditions, simple operation, good selectivity, and high safety, is suitable for large-scale synthesis of phenols, p-cresol, cyclohexanone, etc., and exhibits wide application prospects.

A molecule having a formula (7) for use as a fuel in a combustion engine: and wherein said molecule is a di(2-ethylhexyl) ether.

This invention discloses a parallel-interface engineered viologen-based defective carbon nitride composite material, its preparation method, and its applications, belonging to the field of energy catalysis and photochemical materials technology. The material comprises: a defective graphitic carbon nitride support; single-atom platinum catalytic sites supported on the support; and a selenium-containing viologen compound anchored by covalent bonds in a configuration parallel to the support surface. Through a bilateral covalent bonding strategy, viologen molecules are stably anchored in a parallel configuration to the single-atom platinum-modified defective carbon nitride surface, constructing a highly efficient and stable "electron bridge" structure, significantly enhancing interfacial bonding and photogenerated electron transport efficiency. This composite material exhibits excellent photocatalytic hydrogen evolution activity and efficient coupling ability with benzylamine oxidation under visible light, and its activity retention rate reaches over 92% after 144 hours of cycling. It provides a new paradigm for solving the problem of poor interfacial stability in photocatalysts and has significant application prospects in the field of solar fuel synthesis.

The present invention is a composition containing, (A) one or more compounds selected from a compound represented by the following general formula (A1) and a compound represented by the following general formula (A2) and water, the composition being acidic, wherein R1 is an alkyl group with 1 or more and 24 or less carbons which may contain a heteroatom, R12 is a group with 1 or more and 24 or less carbons in total which contains a carbon atom and a heteroatom of an ion paired with N+ of the pyridine ring and which may contain a heteroatom different from the heteroatom, L is n halogen atoms, n being 1, 2 or 3, and L is bonded to any n different carbon atoms at positions 2, 4 and 6 of the pyridine ring, A- is an anion, and a group other than L may be bonded to a carbon atom other than the carbon atom bonded to L of the carbon atoms of the pyridine ring.

This invention utilizes mechanical vapor compression and / or thermal vapor compression, integrating compression loops across multiple process stages. A sequential network of compressors is used to increase the pressure and condensation temperature of vapor within each process stage as an internal vapor flow, and as an inter-vapor flow branching between process stages. Because available vapor is shared between compressor stages, the number of compressors can be reduced, improving economics. By separating vapor between compressor stages to balance the vapor mass flow rate across multiple process stages in the incremental compressor stages, the entire vapor compression system can be customized to individual process energy requirements and adapt to dynamic fluctuations in process conditions.

The present invention is a liquid composition containing, one or more compounds selected from compounds selected from a specific uronium salt, a specific halouronium salt and a specific thiazolium salt represented by specific formulas and water, the composition being acidic.

Disclosed are methods for converting a hydrocarbon reactant to an alcohol compound and / or a carbonyl compound, wherein the hydrocarbon reactant is irradiated with a light beam having a wavelength in the ultraviolet-visible spectrum, optionally in an oxidizing atmosphere, with a supported transition metal catalyst comprising molybdenum, tungsten, or vanadium to form a reduced transition metal catalyst, followed by hydrolysis of the reduced transition metal catalyst to form a reaction product comprising the alcohol compound and / or the carbonyl compound.

The present disclosure relates to methods for dealkenylative amination. The present disclosure additionally relates to methods for dealkenylative azidation.

The invention discloses a carrier with high specific surface area, a preparation method and application, the carrier is prepared from a polymer, the polymer is polyethylene glycol, and the carrier structure is a shell structure. According to the process for preparing the shell structure by using PEG (800, 1000, 2000 and 4000) with different molecular weights on the gamma-AlO carrier, the thickness of the coating is reduced along with the increase of the molecular weight, so that the performance of the film layer can be optimized by regulating and controlling the molecular weight of PEG. The method is simple in process, environment-friendly, easy to industrially amplify and suitable for the fields of petrochemical engineering, fine chemical engineering, environmental governance, energy, pharmacy and the like, and an innovative path is provided for efficient and green catalyst development.

The invention discloses a super-gravity nano-micro bubble generating device for a large-circulation-volume reaction system and application. The super-gravity nano-micro bubble generating device comprises a rack, a motor, a coupler, a rotating shaft, a rotor, a gas-liquid inlet, a super-gravity outlet liquid distributor, a circulation liquid phase inlet and a gas-liquid outlet. The rack comprises a rack lower part and a rack upper part; a first containing cavity is formed in the lower portion of the rack and used for containing the motor and the coupler. The motor is fixedly connected with the rotor through a coupler and a rotating shaft penetrating through the top of the first containing cavity from bottom to top in sequence. The top end of the lower rack part is fixedly connected with the lower end of the upper rack part in a matched mode, and a hollow second containing cavity is formed in the upper rack part and used for containing a rotor; the device can effectively solve the problems that when a supergravity nano-micro bubble generating device is applied to hydrogenation, oxidation, hydroformylation and other reactions, strong heat release is achieved, and in the circulation process of a large number of materials, the device treatment load is high, and energy consumption is large.

The present invention is a liquid composition containing (A) an isoxazolium salt and water, the composition being acidic.

The present invention relates to a visible-light-mediated one-step method for preparing phenol and cyclohexanone from cyclohexylbenzene (CHB). The method specifically comprises: under the irradiation of visible light, and with a hydrogen bromide solution as a catalyst and oxygen as an oxidizing agent, directly oxidizing cyclohexylbenzene in an organic solvent to break a carbon-carbon bond, so as to generate phenol and cyclohexanone. The method avoids such a process in a cyclohexylbenzene method in the prior art that cyclohexylbenzene needs to be first oxidized to obtain cyclohexylbenzene-1-hydroperoxide (1-CHBHP), then the mixture of the oxidation reaction products is treated, and then a cyclohexylbenzene peroxide is decomposed in an acidic condition to obtain phenol and cyclohexanone, and also avoids potential risks caused by the accumulation of peroxides. In addition, the method further has a great number of advantages of the operation being simple, reagents being easily available, reaction conditions being mild, easy control being achievable, the reaction being able to be scaled-up, a good selectivity being obtained, etc.