44 results about "Ozonolysis" patented technology

The invention belongs to the technical field of online detection of aerosol-amine collaborative escape heterogeneous reaction, and particularly relates to an online detection system and method for aerosol-amine collaborative escape heterogeneous reaction. The system comprises an aerosol particle generation device and a double-flow-tube reaction device which are communicated with each other, and further comprises an ozone generation and detection device which is communicated with the double-flow-tube reaction device, the double-flow-tube reaction device comprises a first flow tube reactor, an ozone decomposition agent container and a second flow tube reactor which are sequentially connected, and air outlets of the aerosol particle generation device and the ozone generation and detection device are respectively communicated with an air inlet of the first flow tube reactor. The method can be synchronously realized by combining the tandem type double-flow-tube reaction device with APPI-HRMS, the distribution characteristics of the SOZ particle multiphase reaction product can be obtained online in real time, and the effective absorption coefficient can be accurately measured by quantifying the SOZ multiphase reaction rate.

The present disclosure pertains to improved methods of preparing high melting dicarboxylic acids or oxo-acids (e.g., carboxylic acid / aldehydes) by ozonolysis of their esters. For example, the present disclosure provides methods for preparing brassylic acid by way of the ozonolysis of erucic acid ester, the method comprising the steps of converting the erucic acid to an ester, performing ozonolysis on the ester, and converting the resulting brassylate ester product to brassylic acid.

The present invention relates to novel homopolymers or copolymers derived from muconic or sorbic acid, to a method for preparing same, to a composition, in particular a cosmetic composition, comprising at least one homopolymer or copolymer derived from muconic or sorbic acid, to a method for treating keratin materials, in particular human keratin materials such as the skin or hair, implementing the application onto the materials of at least one homopolymer or copolymer derived from muconic or sorbic acid or a composition comprising at least one homopolymer or copolymer derived from muconic or sorbic acid; to a method for preparing diacids from homopolymers or copolymers derived from oxidative degradation, in particular by ozonolysis, and to novel diacid compounds derived from the degradation.

The invention discloses an efficient ozone decomposition catalyst suitable for a high-humidity environment and a preparation method and application thereof, and belongs to the technical field of catalytic chemistry and environmental governance. The catalyst is prepared by the following steps: mixing a solution containing a manganese source and a nickel source, adding an alcohol reducing agent for reaction, and calcining the obtained product to obtain metallic nickel doped manganese dioxide; the manganese dioxide doped with the metallic nickel is obtained by acidizing and etching. The ozonolysis catalyst prepared by the method has excellent ozonolysis performance, the preparation method is simple, the specific surface area is large, the water resistance is strong, the long-term stability is good, and the application prospect is wide.

The present disclosure relates to methods and systems for making one or more antimicrobial compositions and / or one or more virucidal disinfectant compositions. Said methods and systems include exposing a vegetable oil composition to ozone gas to cause ozonolysis of on one or more unsaturated fatty acids present in the vegetable oil composition, thereby forming an ozonated vegetable oil composition and exposing the ozonated vegetable oil composition to a temperature greater than 60° C. while in contact with water to decompose one or more ozonide compounds and form a heat-treated, ozonated vegetable oil composition. The present disclosure also relates to one or more uses of said one or more antimicrobial compositions and / or one or more virucidal disinfectant compositions.

Systems and methods are provided for ozonolysis of polycyclic aromatic hydrocarbons (PAHs) in a liquid CO2 reaction environment. It has been unexpectedly discovered that oxygen-containing functional groups can be added to PAH substrates while substantially avoiding combustion reactions and while reducing or minimizing formation of energetic intermediates. Because the formation of energetic intermediates is minimal, the ozonolysis can be performed at temperatures near ambient (e.g., between −10° C. and 50° C.) while still achieving a satisfactory safety profile. In various aspects, ozonolysis can occur while forming a reduced or minimized amount of water, such as forming substantially no water in the reaction environment.

The present invention relates to a method for depolymerising polyurethane by means of ozonolysis in an aqueous medium comprising: (a) introducing the polyurethane foam into at least one reactor containing water, producing a suspension of polyurethane foam in water; and (b) injecting ozone inside the reactor, making it bubble under stirring, producing an ozonolysis reaction of the polyurethane foam during which the polyurethane foam is converted into compounds with low molecular weight, lower than 700 Da, in an aqueous solution.

The invention belongs to the technical field of catalysts, and particularly relates to an ozonolysis catalyst with unsaturated sites and a preparation method of the ozonolysis catalyst. The preparation method comprises the following steps: reacting 2, 5-dihydroxy-1, 4-benzoquinone with manganese acetate tetrahydrate in deionized water, separating, washing and drying to obtain coordination polymer Mn-DHBQ (H2O) 2 powder, mixing the powder with an adhesive to prepare slurry, and finally preparing the ozonolysis catalyst Mn-DHBQ with unsaturated sites through granulation and vacuum activation processes. The catalyst can be synthesized on a large scale, redundant ozone can be effectively degraded in a complex atmospheric environment, the problems that a traditional catalyst is low in catalytic activity and prone to catalytic inactivation under the conditions of high humidity and high concentration are solved, and the catalyst has wide application prospects.

The invention relates to a compact air purification device based on ion thruster technology During operation, the ion thruster generates ozone (O₃) as a byproduct of oxygen ionization. This ozone is directed into a reaction chamber where it oxidizes volatile organic compounds (VOCs) and other airborne pollutants. The system eliminates the need for external fans or filters by using the natural airflow created by the thruster itself. Key components include an ionization chamber, a grounded copper ring, a high-voltage accelerator grid, and a downstream reaction zone. The device operates effectively in low-humidity environments, where ozone remains stable and highly reactive. This integration of aerospace propulsion and environmental chemistry offers a novel, energy-efficient solution for air treatment in enclosed or emergency settings. The invention is suitable for use in homes, laboratories, industrial spaces, and mobile purification units.

The invention provides a waste gas treatment method and equipment, and belongs to the field of waste gas treatment. The waste gas treatment method comprises the steps that waste gas and ozone are mixed and introduced into a catalyst, catalytic oxidation treatment is conducted at the set temperature, the catalyst comprises La < 3 + > doped manganese dioxide, and the manganese dioxide is delta-manganese dioxide. According to the method, waste gas and ozone are mixed and introduced into a catalyst, catalytic oxidation treatment is carried out at the set temperature, the catalyst comprises La < 3 + > doped manganese dioxide, and the manganese dioxide is delta-manganese dioxide. As the radius of La < 3 + > ions is relatively large, when Mn < 4 + > or Mn < 3 + > in delta-manganese dioxide is replaced by La < 3 + > ions, crystal lattices are expanded, so that the Mn-O bond length is lengthened. The Mn-O bond length is modulated through La < 3 + >, ozone is promoted to be decomposed to generate peroxy species (O2 < 2->), the volume ratio of ozone to volatile organic compounds in waste gas is smaller than or equal to 3: 1, it can also be guaranteed that the removal rate of the volatile organic compounds is larger than or equal to 98%, the ozone adding ratio is reduced, and therefore energy consumption of waste gas treatment is reduced.

The present invention belongs to the field of catalytic decomposition of ozone and environmental protection, and discloses a novel piezoelectric effect manganese-based catalyst for efficient catalytic decomposition of ozone, as well as its preparation and application. The present invention mixes molybdate with thiourea, obtains an odd-numbered layer of molybdenum disulfide through a hydrothermal reaction, and then mixes the odd-numbered layer of molybdenum disulfide with potassium permanganate, and obtains manganese dioxide @ an odd-numbered layer of molybdenum disulfide through a hydrothermal reaction. The manganese dioxide @ an odd-numbered layer of molybdenum disulfide is then spot-coated on fan blades, thereby realizing the application of the catalyst in ozone decomposition. The manganese-based catalyst of the present invention is simple to manufacture, low in cost, has high catalytic activity, and strong stability; when it is spot-coated on fan blades, ozone is more easily contacted with the flaky material, thereby being rapidly decomposed.

An ozone decomposition filter manufacturing method comprising a step for thermal spraying, onto a base material, a thermal spray material which contains a metal oxide, and forming, on a surface of the base material, a thermal-sprayed film substantially comprising the metal oxide, wherein the metal oxide contains a metal oxide having an ozonolysis capacity.

The invention discloses a FeOOH-coated NiFe-LDH composite catalyst as well as a preparation method and application thereof, and belongs to the technical field of chemical catalysis. The preparation method of the FeOOH-coated NiFe-LDH composite catalyst comprises the following steps: dissolving a soluble nickel salt, a soluble iron salt and urea in water, and carrying out a hydrothermal reaction to obtain the FeOOH-coated NiFe-LDH composite catalyst, wherein the molar ratio of the soluble nickel salt to the soluble iron salt to the urea is (1-4): 1: (10-40). The FeOOH-coated NiFe-LDH composite catalyst is synthesized by adopting a one-step hydrothermal method by controlling the molar ratio of the FeOOH-coated NiFe-LDH composite catalyst to the NiFe-LDH composite catalyst. In the FeOOH-coated NiFe-LDH composite catalyst, FeOOH is uniformly distributed on the layered NiFe-LDH in the form of an amorphous granular structure; feOOH and NiFe-LDH form an interface structure, so that toxic active sites of water molecules can be reduced, ozone adsorption and decomposition are promoted, and deactivation of the catalyst under the condition of high humidity is avoided. Therefore, the FeOOH-coated NiFe-LDH composite catalyst provided by the invention has excellent moisture resistance, and the ozone decomposition activity exceeding 90% can be stably maintained in a wide humidity range (0-90% RH).

The invention discloses a system and method for treating landfill leachate through multi-stage biochemical catalysis, and belongs to the technical field of sewage treatment.The method comprises the steps that anaerobic hydrolysis catalysis, aerobic biological catalysis and deep oxidation catalysis are sequentially conducted in two stages, during anaerobic catalysis, a hydrolysis reaction is catalyzed through compound enzymes, and macromolecular organic matter is converted into small molecules; during aerobic biological catalysis, aerobic microorganisms exist in a liquid phase in a suspended state, and pollutants are catalyzed to be decomposed through metabolic activity under an aerobic condition; during deep oxidation catalysis, the catalyst is intensively combined with ozone, ozone or pollutants are adsorbed on the surface of the catalyst, and the ozone is promoted to be decomposed through surface active sites to generate hydroxyl radicals, or oxidation reaction is directly carried out to degrade refractory pollutants; and carrying out next-stage treatment on the water subjected to deep oxidation catalysis treatment. Different pollutants are specifically solved, macromolecular organic matters are decomposed in an anaerobic stage, small molecular matters are degraded in an aerobic stage, refractory components are deeply oxidized by a catalytic unit, and the total removal rate can exceed 90%.

The utility model relates to the technical field of discharging devices, and discloses a discharging device for ozonolysis catalyst production, which comprises a grinding device, when an ozonolysis catalyst is processed, raw materials are injected into the grinding device from a feed port, and after the raw materials are crushed by the grinding device, the raw materials are fed into the grinding device. And during discharging, the power assembly is started, the power assembly is meshed with the rotating assembly to drive the filtering assembly to operate after being started, the filtering assembly is matched with the sweeping assembly after operating, and the pulverized catalyst raw material powder is filtered. And meanwhile, the power assembly runs to synchronously drive the extrusion assembly to extrude the beating assembly, so that the beating assembly intermittently beats the filtering assembly, the filtering effect is further improved, the catalyst powder can be filtered when the crushed catalyst powder is discharged through the discharging opening, subsequent secondary filtering treatment is not needed, and the working efficiency is improved. And the processing efficiency is effectively improved.

The invention relates to the technical field of perfluorinated chemical industry, in particular to a process for preparing a fluorine-containing intermediate through ozone cracking of perfluoroolefin, which comprises the following steps: A) carrying out ozone oxidation cracking reaction on perfluoroolefin and oxygen-ozone mixed gas in cracking equipment to obtain a product; b) selectively absorbing the product through an absorbent and / or performing low-temperature condensation recovery, separation and purification to obtain a fluorine-containing intermediate; and C) absorbing, separating and purifying the residual tail gas by using an absorbent to obtain a byproduct. The method is suitable for various perfluoroolefin raw materials, cracking products are different due to the raw materials, and a new technical platform is provided for industrial production of fluorine-containing acyl fluoride intermediates. By optimizing the cracking process, the composition of the product can be adjusted, so that the yield of the high-added-value product is increased; by adjusting the reaction process and optimizing the reactor combination, the gas-liquid reaction efficiency is improved, the ozone utilization rate is greatly improved, the reaction selectivity is improved, and the side reaction is effectively inhibited, so that the generation of by-products is reduced, and the method is environment-friendly and energy-saving.

This invention relates to a method for producing highly ozonated fatty acids by subjecting extra virgin sunflower oil containing a high concentration of polyunsaturated fatty acids to high ozonolysis. Similarly, this invention relates to the highly ozonated fatty acids produced by said method and their cosmetic and medical uses, particularly due to their repairing effects on skin damage.

This invention relates to the field of volatile organic compound (VOC) treatment, and discloses a method and system for treating low-concentration VOCs waste gas containing dust. The method includes the following steps: (1) mixing the waste gas to be treated, ozone, and a peroxide solution to obtain a mixture; (2) conveying the mixture to a circulating tower and treating it under ultraviolet irradiation to obtain a waste liquid and a gas phase; dehydrating the gas phase to obtain a gaseous material; and (3) subjecting the gaseous material obtained in step (2) to a catalytic oxidation reaction and an ozone decomposition reaction in sequence. The method described in this invention achieves efficient treatment of low-concentration VOCs waste gas containing dust, and the treated gas meets emission standards.

The embodiment of the invention belongs to the field of electric fire stoves, and discloses a high-thermal-efficiency furnace end with secondary ionization and ozonolysis functions, which comprises a plurality of outer cyclones fixed between a nozzle panel and a furnace end base, an inner cyclone is arranged in any outer cyclone, and any inner cyclone is connected with a nozzle arranged on the nozzle panel; the connecting pipe of any outer cyclone is provided with an electrode needle, the electrode tip of the electrode needle is located in the inner cavity of the outer cyclone, and the pin of the electrode needle penetrates through the bottom of the connecting pipe to be connected with one pole of a power supply; a bridge electrode is arranged at the bottom of any inner cyclone, and electrode tips are arranged on the inner side and the outer side of the bridge electrode at the bottom of the inner cyclone; any nozzle is connected with the other pole of the power supply through the nozzle panel; wherein a first ionization area is formed between the outside of the inner cyclone and the inner cavity of the outer cyclone, and a second ionization area is formed between the inner cavity of the inner cyclone and the inner cavity of the nozzle. The high-thermal-efficiency furnace end with the secondary ionization and ozonolysis functions can inhibit generation of ozone from the source.

Title: USE OF POLYMERS DERIVED FROM MUCONIC OR SORBIC ACID, PROCESS FOR PROCESSING KERATINIC MATERIALS, POLYMER AND COMPOSITION The present invention relates to new homopolymers or copolymers derived from muconic or sorbic acid, their preparation process, a composition, in particular a cosmetic composition, comprising at least one homopolymer or copolymer derived from muconic or sorbic acid, a process for treating keratinic materials, in particular human materials such as skin or hair, involving the application to said materials of at least one homopolymer or copolymer derived from muconic or sorbic acid or of a composition comprising at least one homopolymer or copolymer derived from muconic or sorbic acid; a process for preparing diacids from homopolymers or copolymers resulting from oxidative degradation, in particular by ozonolysis, and new diacid compounds resulting from said degradation.

The invention discloses an ozonolysis catalyst, a preparation method thereof and application of the ozonolysis catalyst in ozonolysis. The ozonolysis catalyst comprises a catalytic layer, the catalyst layer comprises an active component, hydrophobic particles and a binder; the active component contains an active element, and the active element is selected from at least one of manganese, cerium, copper and precious metal. The hydrophobic material with the particle size of 20 nm-40 microns is added into the slurry of the active component, so that the hydrophobic performance of the catalyst layer can be improved, and the competitive adsorption effect of water molecules on active sites on ozone molecules is inhibited, thereby enhancing the water resistance of the active component, and meanwhile, the hydrophobic material plays a role of a binder to improve the strength of the catalyst layer.

The present invention relates to novel homopolymers or copolymers resulting from muconic or sorbic acid, to their process of preparation, to a composition, in particular a cosmetic composition, comprising at least one homopolymer or copolymer resulting from muconic or sorbic acid, to a method for the treatment of keratin materials, in particular human keratin materials, such as the skin or head hair, employing the application, to said materials, of at least one homopolymer or copolymer resulting from muconic or sorbic acid or of a composition comprising at least one homopolymer or copolymer resulting from muconic or sorbic acid, to a process for the preparation of diacids from the homopolymers or copolymers resulting from oxidative degradation, in particular by ozonolysis, and to new diacid compounds resulting from said degradation.

The present application relates to sewage treatment technical field, especially a kind of ozone degradation organic matter microchannel reaction device, including hollow cylinder, the middle part of cylinder is equipped with filler, filler is formed by the bundling of multiple iron wires with catalyst, filler divides the inner cavity of cylinder into upper cavity and lower cavity, lower cavity is sequentially equipped with sludge discharge port, water inlet, gas inlet and screen from bottom to top, upper cavity top is equipped with gas outlet and pressure controller, gas outlet is installed with gas valve, the middle part of upper cavity is equipped with water outlet, water outlet is equipped with baffle, pressure controller is electrically connected with water inlet valve, gas valve and sludge valve;The present application utilizes multiple iron wires to bundle and form microchannel for ozone and wastewater reaction, improves mass transfer efficiency, and simple to prepare, easy to clean, and when screen is blocked, unused gas is gathered in upper cavity, when gas pressure reaches a certain value, trigger pressure controller to backflush screen, the whole backflushing process can be automatically controlled, so that the degree of automation of the whole device is higher.

The invention discloses a rhenium-copper double-loaded ozone catalyst and a preparation method and application thereof. The preparation method comprises the following steps: uniformly mixing aluminum oxide with copper salt, rhenate and a solvent, and standing overnight after vibration treatment; and filtering, collecting filter residues, and roasting to obtain the rhenium-copper double-loaded ozone catalyst. According to the rhenium-copper double-loaded ozone catalyst, activated aluminum oxide serves as a carrier, perrhenate radicals and copper ions serve as main active components, copper can inhibit metal ions from being dissolved out, and the rhenium-copper double-loaded ozone catalyst is prepared through an impregnation and calcination method; copper and rhenium are effectively loaded on porous activated aluminum oxide through high-temperature roasting, and ozone is adsorbed and promoted to be decomposed into hydroxyl free radicals, superoxide free radicals, singlet oxygen and other active oxygen in combination with the reaction activity of copper ions and perrhenate radicals, so that the purposes of effectively degrading organic matters in water and purifying water are achieved.

A two-dimensional layered nitrogen-doped carbon quantum dot modified carbon nitride supported in-situ chlorine-doped calcium ferrite nano-magnetic composite catalyst and a preparation method thereof according to the present invention relate to the technical field of water treatment materials. In order to solve the problem that the existing spinel-type calcium ferrite catalyst has a small number of surface oxygen vacancies, the number of anions and cations that can be accommodated is limited, and it cannot more effectively promote the decomposition of ozone to generate active free radicals, resulting in low catalytic activity of the catalyst. The present invention combines the sol-gel method and the hydrothermal method to prepare a two-dimensional layered nitrogen-doped carbon quantum dot modified carbon nitride supported in-situ chlorine-doped calcium ferrite nano-magnetic composite catalyst. The chemical formula of the catalyst is Cl-CaFe2O4 / g-C3N4 / NCQDs. Compared with CaFe2O4, the catalytic activity is significantly enhanced, it has a larger surface area, provides more active sites and oxygen vacancies, and can promote ozone to generate more active free radicals.

The invention belongs to the technical field of nano composite materials, and particularly relates to an application of a porous material (PM) loaded metal oxide nano particle composite material based on a microwave-assisted method in catalytic ozonolysis. Transition metal oxide (including but not limited to MnO2, Fe2O3, Co3O4, NiO, CuO and the like) nanoparticles are precisely confined in internal pore channels of a porous matrix (porous oxide, a molecular sieve, a polymer, a metal-organic framework, a covalent organic framework and the like) by adopting a low-temperature synthesis and microwave-assisted technology, and the UMONPs (at) PM composite material with a stable pore channel structure is successfully constructed. The prepared composite material shows excellent performance in the application of catalytic ozonolysis, including high active site density, high mass transfer efficiency and excellent process stability, and the reaction temperature can be greatly reduced. Due to the characteristics, the catalyst has a wide application prospect in the field of environmental catalysis, and is particularly suitable for development of a high-performance ozone degradation catalyst.

The present invention relates to novel homopolymers or copolymers resulting from muconic or sorbic acid, to their process of preparation, to a composition, in particular a cosmetic composition, comprising at least one homopolymer or copolymer resulting from muconic or sorbic acid, to a method for the treatment of keratin materials, in particular human keratin materials, such as the skin or head hair, employing the application, to said materials, of at least one homopolymer or copolymer resulting from muconic or sorbic acid or of a composition comprising at least one homopolymer or copolymer resulting from muconic or sorbic acid, to a process for the preparation of diacids from the homopolymers or copolymers resulting from oxidative degradation, in particular by ozonolysis, and to new diacid compounds resulting from said degradation.

The application discloses a core-shell catalyst and a preparation method and application thereof. The shell layer of the core-shell catalyst is silicon oxide, and the inner core is an oxide carrier loaded with nickel oxide; the shell layer is coated on the surface of the inner core; in the inner core, the molar content of the nickel oxide is 0.5-30%. The super-hydrophobic property of the silicon oxide shell layer of the catalyst can isolate and inhibit the adsorption of water molecules on the catalytic site, and prevent the formation of a water film on the surface of the catalyst to cause the inhibition of ozone adsorption. The catalyst can have good ozone decomposition performance at high flux, high humidity and low temperature (room temperature).

The application provides a preparation method and application of a nickel-manganese solid solution and a composite oxide thereof, and belongs to the technical field of environmental protection. The state of reaction is controlled by adjusting the ratio of bivalent nickel and bivalent manganese, so that a nickel-manganese solid solution or a nickel-manganese composite oxide catalyst with different nickel-manganese contents is generated; the nickel-manganese solid solution and the oxide thereof prepared by the application can efficiently catalyze and decompose ozone under the conditions of high ozone concentration, high mass space velocity and a wide humidity range, while the preparation method is simple, the time is short, the cost is low, the environment is not polluted, and the ozone removal efficiency is excellent under the condition of high relative humidity, and the shortcoming that traditional catalysts are easily deactivated under humid conditions is overcome.

The invention is applied to the technical field of wet-process phosphoric acid refining, and particularly relates to a novel post-extraction phosphoric acid deoiling process which comprises the following steps: removing and recovering suspended oil, dispersed oil and part of emulsified oil in acid by adopting an air flotation technology, introducing ozone into the air-floated acid, pumping the acid containing ozone microbubbles into a mixed packed column of activated carbon phase silicon carbide and boron carbide, and carrying out deoiling on the acid. Phosphoric acid containing ozone microbubbles is catalyzed in a silicon carbide and boron carbide packed column, the ozonolysis rate is increased, more hydroxyl radicals are generated, the deoiling purpose can be achieved, oxidized acid enters an activated carbon adsorption column to adsorb oxidized short-carbon-chain organic matter, and finally deoiled phosphoric acid liquid is obtained. Wherein high-concentration oleic acid which can be collected after air flotation can flow back to the extraction system to be recycled, so that the extraction agent is recycled and reused.