32 results about "Ozonolysis" patented technology

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.

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 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 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 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.

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 present application relates to volatile organic compounds treatment technical field, disclose a kind of method and system for treating dust and low concentration VOCs exhaust, wherein, the method comprises the following steps: (1) under the irradiation of ultraviolet, the exhaust to be treated is contacted with first oxidizing agent solution reversely, obtain first gas phase and waste liquid;(2) first gas phase is mixed with ozone, then the obtained mixed gas is irradiated using ultraviolet, obtain second gas phase;(3) under the irradiation of ultraviolet, second gas phase is contacted with second oxidizing agent solution reversely, the third gas phase obtained is carried out ozone decomposition reaction;First oxidizing agent solution and second oxidizing agent solution are same or different, and both contain peroxide.The method of the present application is based on the mechanism of photo-oxidation reaction, realizes the efficient treatment of dust and low concentration VOCs exhaust, simultaneously, in the process of removing VOCs, without using adsorption material and VOCs degradation catalyst, and the operation and maintenance cost is low.

The invention relates to a preparation method and application of an amorphous cobalt-based metal organic framework material, and belongs to the technical field of new materials. According to the invention, a metal organic framework (MOF) material MOF-74 which shows good chemical stability under the conditions of high temperature and wide pH value is used as a catalyst template, and amorphous Co-MOF-74-A is synthesized and applied to catalytic ozonolysis. The catalytic material has a layered porous structure, a large number of oxygen vacancies and high-density metal active sites and shows excellent ozone decomposition performance, the material is stable in property, the raw materials are easy to obtain, low in toxicity and good in water resistance, meanwhile, the preparation method is easy to operate, good in repeatability, mild in condition and environmentally friendly, and the catalytic material is suitable for industrial production. The material can be well used in the ozone adsorption and decomposition process.

The present application pertains to a process for the treatment of recycled gypsum, which contains siloxanes with Si-H bonds and / or organic constituents, wherein the gypsum is treated with ozone in amount of at least 1 mg / kg recycled gypsum. By means of such treatment, the siloxanes with Si-H bonds and organic constituents can be degraded to respective oxidized compounds, which do not affect the foaming characteristic or processing behavior of the recycled gypsum. The present application further pertains to a process for preparing a foamed gypsum composition and gypsum boards, wherein the process comprises a process as indicated above, correspondingly prepared gypsum and gypsum boards, the use of ozone for the decomposition of siloxanes with Si-H bonds and / or for the oxidation of organic constituents, in particular gypsum setting retarders, in gypsum recyclates and the use of ozone for the improvement of foaming characteristics of recycled gypsum.

The invention discloses an emission type plasma reactor which comprises a machine shell and a high-voltage power box, an ozone decomposition net is arranged in the machine shell, two reactors are installed on the top face of the ozone decomposition net, an air inlet shutter is connected to the top face of the machine shell, and a first high-voltage plug and a second high-voltage plug are arranged at one ends of the two reactors respectively. And an electric control box is arranged in the shell. According to the device, needle-ring type plasma disinfection factors are emitted to the filter screen through the machine shell, the electric control box, the high-voltage power supply, the reactor, the ozonolysis net, the special pipeline, the high-voltage anode gold needle and the high-voltage cathode gold ring, the breeding variation problem of bacterial viruses carried by the filter screen is effectively controlled, and the device can be used for effectively solving the bacterial viruses carried by the filter screen of an air conditioner and a disinfector. The emission type plasma air disinfector has emission disinfection capability, and the emission type plasma air disinfector is installed at an air return port of a central air conditioner and effectively kills indoor air and bacteria and viruses on a filter screen.

The invention provides a preparation method and application of an ozone catalyst based on alumina pellets. The ozone catalyst disclosed by the invention is prepared from a gamma-Al2O3 mesoporous spherical carrier and a Ni-Ce bimetallic oxide loaded on the gamma-Al2O3 mesoporous spherical carrier. The catalytic action is dominated by Ni-Ce bimetal oxide (NiO-Ce2O3 / CeO2) loaded on the gamma-Al2O3 mesoporous spherical carrier, the dissolution amount of metal ions is extremely low and is not a main active source, ozone decomposition is promoted by metal oxide (such as Ni-O-Ce bridged bonds) to generate. OH free radicals, and the defects of an existing catalyst are overcome. The invention also provides a preparation method and application of the ozone catalyst.

The invention relates to a defect-site-rich spinel type manganese-based oxide catalyst as well as a preparation method and application thereof, and belongs to the field of new materials and atmosphere prevention and control. According to the method, water-soluble nano inorganic salt generated in situ in a coprecipitation process at room temperature is used as a pore-forming agent and a defect protective agent, and the spinel type manganese-based catalyst is obtained through an inorganic self-template mechanism in combination with an ultrasonic cavitation effect. The method has the advantages that the method is simple and convenient in preparation process, mild in condition and low in cost, does not need any external soft / hard template assistance or extreme conditions, and is suitable for large-scale production, and the prepared mesoporous spinel type manganese-based oxide can provide more active manganese vacancies and oxygen vacancies, and can be used for preparing the mesoporous spinel type manganese-based oxide. The efficient and stable ozonolysis catalytic effect of the composite oxide in a high-airspeed and high-humidity environment is ensured.

The invention discloses an ozone preparation device. The ozone preparation device comprises an inner pipe, a middle pipe and an outer pipe which are coaxially arranged, the inner pipe comprises a first cooling channel which is coaxially arranged with the inner pipe, a conductive element is arranged on the inner wall of the first cooling channel, and the conductive element is connected with the high-voltage electrode; the middle pipe is sleeved with the outer pipe, a second cooling channel is formed between the outer pipe and the middle pipe, a flowing cooling medium is arranged in the second cooling channel, and a grounding electrode is arranged on the outer pipe; a discharge area is formed between the high-voltage electrode and the grounding electrode, and the intermediate tube is located in the discharge area. According to the scheme, both the outer pipe and the inner pipe are provided with the cooling channels for allowing the cooling medium to flow, so that a dual-cooling structure is formed, the high-voltage electrode and the grounding electrode are cooled, the working temperature of the ozone preparation device is always maintained in a reasonable range, the temperature stability of the ozone preparation device is ensured, and the efficient and stable reaction is ensured; ozonolysis caused by high temperature is reduced, and the production rate of ozone is guaranteed; meanwhile, the service life of equipment is prolonged.

The invention belongs to the technical field of new materials, and particularly relates to a preparation method of an MIL-88B (Fe) encapsulated NiO nano-particle composite material and application of the MIL-88B (Fe) encapsulated NiO nano-particle composite material in catalytic ozonolysis. According to the invention, a metal-organic framework (MOF) material MIL-88B (Fe) with a highly ordered pore structure and a large number of channel type pore structures is used as a carrier, and NiO is encapsulated in the MIL-88B (Fe), so that the growth of NiO nanoparticles is effectively limited, and highly dispersed active components are formed, thereby preparing the NiO-coated MIL-88B (Fe) catalytic material. The catalytic performance of NiO is exerted, and the structural advantages of MIL-88B (Fe) are utilized to improve the ozone adsorption and degradation capacity of the material. The NiO-coated MIL-88B (Fe) provided by the invention is an efficient ozone decomposition material with an application prospect. Meanwhile, the preparation method disclosed by the invention is simple and convenient to operate, recyclable and mild in condition.

A hydrogenated conjugated diene-based polymer satisfying the following conditions (i) to (iii):<Condition (i)>a random polymer containing a conjugated diene monomer unit and optionally containing an aromatic vinyl monomer unit, whereina content of an aromatic vinyl monomer block is less than 10 mass % of the hydrogenated conjugated diene-based polymer;<Condition (ii)>a weight average molecular weight is 10×104 or more and 200×104 or less; and<Condition (iii)>a molecular weight distribution of an ozonolysis product is 2.1 or more and 6.0 or less.

The invention discloses a novel ultrahigh-specific-surface-area efficient ozonolysis catalyst and a coating process thereof, relates to the technical field of ozonolysis, and aims to solve the problem of low ozonolysis efficiency in the prior art. The catalyst is a catalyst in a suspension form, and is prepared by the following steps; the preparation method comprises the following steps: A1, synthesizing nano manganese dioxide with a nanowire, nanosheet or ultrathin nanoflower structure by adopting a hydrothermal method or a coprecipitation method; a2, freeze-drying the synthesized nano-manganese dioxide to obtain black nano-manganese dioxide powder; and A3, mixing the nano manganese dioxide powder with deionized water, a binder, a thickening agent and a dispersing agent, and then grinding for 12-24 hours by adopting a ball mill or a sand mill to form a stable and uniform catalyst in a suspension form. The device has the advantage of realizing efficient ozonolysis.