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36 results about "Chemical decomposition" patented technology

Chemical decomposition is the breakdown of a single entity (normal molecule, reaction intermediate, etc.) into two or more fragments. Chemical decomposition is usually regarded and defined as the exact opposite of chemical synthesis. In short, the chemical reaction in which two or more products are formed from a single reactant is called a decomposition reaction.

A high-flux heat exchange device based on thermo-chemical reaction assistance

PendingCN122640984AChemical reactionHigh flux
The application discloses a high-flux heat exchange device based on a thermo-chemical reaction auxiliary, which comprises a heat exchange chamber and a chemical phase change working medium. The chemical phase change working medium comprises a liquid cooling base fluid and a reversible thermal decomposition solute. The thermal decomposition temperature threshold of the reversible thermal decomposition solute is lower than the physical boiling point of the liquid cooling base fluid under the current environment. When the temperature or pressure of the heat exchange surface reaches the thermal decomposition temperature threshold, the reversible thermal decomposition solute undergoes an endothermic decomposition reaction on the heat exchange surface, rapidly generates a large number of non-condensable bubbles and high-frequency separates, thereby triggering strong local micro-convection disturbance of the fluid and absorbing a large amount of chemical decomposition heat, and finally achieving heat dissipation of the heating element. The application accelerates the transfer of wall heat by using a thermo-chemical reaction, and improves the separation rate of bubbles at the solid-liquid interface, breaks the engineering resistance that bubbles are difficult to nucleate and efficiently separate in traditional boiling heat transfer, and realizes rapid and large absorption and transfer of the combined chemical reaction heat of the solute and the latent heat of vaporization of the base fluid.
Owner:XI AN JIAOTONG UNIV

Environment-friendly cleaning agent as well as preparation method and application thereof

The invention provides an environment-friendly cleaning agent. The cleaning agent is prepared from the following components in percentage by weight: 1520% of modified alkyl glycoside, 812% of trisodium citrate, 35% of nano silicon dioxide, 24% of polyether modified siloxane, 12% of matrine extract, 0.08 0.12% of EDTA (Ethylene Diamine Tetraacetic Acid) disodium, 0.81.2% of lipase, 0.30.5% of protease, 0.30.5% of trehalose and the balance of deionized water. The cleaning agent provided by the invention has three decontamination mechanisms of chemical decomposition, physical adsorption and biological enzymolysis, can well clean the equipment transmission chain, and has good antirust function and environmental protection performance.
Owner:HUAYANG KERUI (WUHAN) BIOTECHNOLOGY CO LTD

Preparation method of graphene liquid-distributed deodorization spunlace nonwoven fabric

PendingCN122504050AGraphene derivativesPhysisorption
This invention discloses a method for preparing a graphene-based deodorizing spunlace nonwoven fabric, belonging to the field of spunlace nonwoven fabric technology. The method includes: S1, mixing and dispersing water, a dispersing agent, and a graphene derivative under heating conditions to obtain a graphene dispersion; S2, adding a humectant, vitamins, and an antibacterial agent to the dispersion, heating and stirring to dissolve, cooling, adding plant-based deodorizing essential oils and functional additives, stirring and filtering to obtain a functional liquid; S3, applying the functional liquid to a spunlace nonwoven fabric substrate using an impregnation or spraying process, and drying at low temperature to obtain the final product. In this invention, the graphene derivative is selected from graphene oxide, reduced graphene oxide, or graphene quantum dots, and the functional additive is selected from sodium pyrrolidone carboxylate, undecylenoyl phenylalanine, or sodium hyaluronate. The resulting nonwoven fabric has a dual deodorizing mechanism combining physical adsorption and chemical decomposition, possessing broad-spectrum antibacterial and skin-moisturizing effects, and exhibits strong process compatibility, making it suitable for large-scale production.
Owner:ZHEJIANG DESOLAR NEW ENERGY TECH CO LTD

Monomer composition for the synthesis of recycled plastic, process for its preparation and recycled plastic, shaped articles using the recycled plastic

The present invention relates to a monomer composition for synthesizing a recycled plastic, comprising a high-purity aromatic diol compound recycled through recycling using chemical decomposition of a polycarbonate-based resin; a method of preparing the monomer composition; and a recycled plastic and a molded article using the same. In addition, the present invention relates to a monomer composition for synthesizing a recycled plastic, comprising a high-value-added by-product recycled through recycling using chemical decomposition of a polycarbonate-based resin; a method of preparing the monomer composition; and a recycled plastic and a molded article using the same.
Owner:LG CHEM LTD

Preparation method of refrigerator HIPS (High Impact Polystyrene) inner container without peculiar smell and refrigerator HIPS inner container

According to the preparation method of the odorless refrigerator HIPS inner container and the refrigerator HIPS inner container, four odor removal mechanisms of physical adsorption, chemical decomposition, physical removal and low-temperature migration are creatively fused, an all-directional removal system is formed for multiple sources of odorless odor of the HIPS inner container, such as residual monomers, VOCs and oxidative degradation products, and odor removal is more thorough; and the odor removal process occurs in the material manufacturing stage, the odor source is eliminated through the modified HIPS matrix, the effect can penetrate through the whole life cycle of the inner container and cannot be attenuated or rebounded along with the use time, and the industrial pain point of repeated odor is thoroughly solved. By accurately adding 1-3 parts by weight of compatilizer, the interfacial compatibility of the porous adsorbent and an HIPS organic matrix can be effectively improved, and the adsorbent is ensured to be uniformly dispersed in resin and not agglomerated; the original core performances such as impact resistance and easy forming of the HIPS material are reserved, and the structural strength requirement of the refrigerator liner for long-term use is met.
Owner:CHANGHONG MEILING CO LTD

Process for recovering valuable substances from polyurethane foams

PendingCN122374376APolymer scienceDistillation
This invention relates to a method for recovering valuable substances from polyurethane foam, comprising: (A) providing a polyurethane foam based on an isocyanate component and a polyether polyol component; (B) chemically decomposing the polyurethane foam by reacting it with an organic chemical decomposition agent and water, wherein the organic chemical decomposition agent is selected from: (i) a primary or secondary chemically decomposable amine, (ii) a chemically decomposable amino alcohol having a primary or secondary amino group, (iii) a chemically decomposable alcohol, or (iv) a mixture of two or more of the said organic chemical decomposition agents; (C) distilling off the organic chemical decomposition agent and optionally toluene diamine or a portion thereof generated in (B), wherein solid components can be separated before and / or after distillation; (D) extracting the polyether polyol with an organic solvent, wherein an acid and water are added, and a polyol phase is obtained after separation of the acidic aqueous phase; and (E) post-treating the polyol phase to obtain at least one polyether polyol.
Owner:COVESTRO DEUTSCHLAND AG

An electronic cigarette capable of recycling and purifying smoke

The utility model relates to electronic cigarette technical field, especially a kind of electronic cigarette of recycling purification smoke.It includes shell, atomization device, purification filter device, shell inside part is two independent chambers, two chambers are atomization chamber and recycling purification chamber respectively, shell is also equipped with suction nozzle, smoke inlet, smoke outlet, suction nozzle is communicated atomization chamber, atomization device is installed in atomization chamber, smoke inlet, smoke outlet is communicated recycling purification chamber respectively, purification filter device is installed in recycling purification chamber, purification filter device is located on the smoke path between smoke inlet and smoke outlet.Adopt split type layout, distinguish the physical separation and function cooperation of electronic cigarette main body and purification device, integrate the purification filter device of efficient smoke recycling purification in electronic cigarette inside, realize the real-time interception and innocuous treatment of atomized smoke by multiple purification technologies such as physical adsorption, chemical decomposition.
Owner:深圳市禾晗科技有限公司

A deodorizing cat litter material containing modified straw fiber and cassava starch composite structure

The application discloses a deodorizing cat litter material containing modified straw fiber and cassava starch composite structure and belongs to the technical field of pet products. The cat litter material comprises a composite base material and a functional additive, the composite base material takes modified straw fiber and cassava starch as core components, forms a'skeleton-bonding' composite structure, the modified straw fiber constitutes a supporting skeleton, the cassava starch fills the gaps between the skeleton and forms a dense clumping layer as a bonding agent; the functional additive comprises a deodorizing agent and a bonding aid, and after being mixed and formed with the composite base material, physical adsorption and chemical decomposition are realized to achieve synergistic deodorization. The application utilizes modified agricultural straw waste for recycling, reduces cost and is environment-friendly, the cassava starch improves the clumping performance of the cat litter, the modified straw fiber enhances the adsorption and deodorization capacity, and the problems of poor deodorization effect, loose clumping and insufficient environmental protection of traditional cat litter are solved. The cat litter material is efficient in deodorization, compact in clumping, low in dust and degradable, and has a wide application prospect.
Owner:HANGZHOU GAOYEJIA LIU BOER BIOTECHNOLOGY CO LTD

Method for extracting calcareous microfossil of consolidated sediment

The invention discloses a method for extracting calcareous microfossils of consolidated sediments, which comprises the following steps: S1, taking a rock core sample or a rock debris sample of the consolidated sediments, cleaning the surface of the rock core sample or the rock debris sample, and crushing the rock core sample or the rock debris sample to obtain a debris sample; s2, weighing a chipping sample, soaking the chipping sample in water, heating the chipping sample, and then freezing the chipping sample to obtain a frozen sample; s3, hydrogen peroxide is added into the frozen sample and mixed, then sieving and cleaning are conducted, and first particles are obtained; adding a weakly alkaline reagent and heating to obtain a first mixture; s4, adding an anti-flocculating agent into the first mixture, mixing, and carrying out ultrasonic treatment to obtain a second mixture; and then sieving, cleaning, drying and collecting a particle sample. According to the method, more calcareous microfossils are physically separated out, chips adhering to the surfaces of the calcareous microfossils fall off, chemical decomposition of the fossils and adhering particles is promoted, meanwhile, preservation of fossil shells is facilitated, and fine particles are prevented from being flocculated and precipitated.
Owner:CNOOC DEEPWATER DEV +1

Gelatin stirring device based on compressed air

The utility model relates to the technical field of gelatin stirring, and discloses a gelatin stirring device based on compressed air, which comprises a heat preservation sleeve, a stirring barrel is fixed in an inner cavity of the heat preservation sleeve, a barrel cover with a feed port is detachably mounted at an opening at the top end of the stirring barrel, and a stirring component is mounted at the top of the stirring barrel. An air inlet is formed in the side edge of the end, close to the barrel cover, of the stirring barrel, a first air inlet connecting pipe is welded to the position, directly facing the air inlet, of the stirring barrel, and the air inlet end of the first air inlet connecting pipe is fixedly connected with the air outlet end of a purification bin. According to the gelatin stirring device based on compressed air, a synergistic air purification system is formed by integrating multiple filtration, an HEPA filter layer, UV light and a photocatalyst technology, a complete air purification chain from physical interception to chemical decomposition and from immediate purification to long-acting bacteriostasis is constructed, the purification efficiency is high, the purification effect is good, the operation is simple, and the cost is low. Product pollution or performance reduction caused by the fact that impurities are mixed into gelatin is avoided, and therefore the safety of the gelatin is improved when the gelatin is stirred with air.
Owner:JIN RONG (FUJIAN) GELATIN TECH CO LTD

A method and system for monitoring the inventory of hydrogen peroxide test solution during active isolation and decoupling.

This invention provides a method and system for monitoring the inventory of hydrogen peroxide test solution with active isolation and decoupling, relating to the field of medical device measurement and monitoring technology. It aims to improve the problem of continuous inventory closed-loop control deviation caused by the inability to accurately reconstruct the actual pumped volume from the weighing signal due to the overlap of chemical decomposition weight loss and pumping weight loss in the test solution. By periodically switching between static calibration and dynamic pumping states, a pure chemical decomposition weight loss reference rate is obtained under static conditions through active isolation, avoiding overlap with pumping weight loss; under dynamic conditions, the total weight loss is obtained, and the real-time decomposition weight loss is obtained after environmental compensation, with the difference reconstructing the actual pumping mass flow rate. Closed-loop control automatically compensates for attenuation, eliminating the need for a flow meter, accurately separating the pumped volume from the overlapped signal, solving the long-term inventory control inaccuracy problem, and significantly improving replenishment accuracy and system stability.
Owner:SHANGHAI MEDICAL DEVICE INSPECTION & RES INST

Portable chemical molecule compressed air sewer pipeline dredging device

The utility model discloses a portable chemical molecule compressed air sewer pipeline dredging device, which belongs to the technical field of pipeline dredging appliances and consists of a chemical molecule compressed air main body part, a trigger part and an emission part, the chemical molecule compressed air main body part is filled with chemical molecule compressed air, and the trigger part is communicated with the chemical molecule compressed air main body part and is provided with a trigger mechanism; the emission part is arranged at the end, away from the triggering part, of the chemical molecule compressed air body part and provided with a sealing film, and an opening of the emission part is matched with the structure of an inlet of the bathroom pipeline. The emission part is aligned to the inlet of the bathroom pipeline, the starting mechanism is operated, the sealing film is damaged, the chemical molecule compressed air is triggered to pass through the emission part from the chemical molecule compressed air main body part and enter the inlet of the bathroom pipeline from the opening of the emission part, blockages in the pipeline are scattered through explosion of the chemical molecule compressed air, and chemical decomposition is carried out. And the blockages are dissolved. The utility model has the technical effects that the use is convenient, the unplugging effect is improved, and the use cost is reduced.
Owner:GUANGDONG XINRONGRONG POWER TECH CO LTD

Nuclear energy coupling photocatalytic water splitting hydrogen production system and hydrogen production method

The invention relates to the technical field of nuclear energy-light energy coupling hydrogen production, and discloses a nuclear energy coupling photocatalytic water splitting hydrogen production system and a hydrogen production method. The nuclear energy coupling photocatalytic water splitting hydrogen production system comprises a photocatalytic reaction unit used for decomposing an aqueous solution containing a sacrificial agent under the action of a photocatalyst to produce hydrogen; the thermal chemical reaction unit is connected with the photocatalytic reaction unit and is used for receiving ammonium sulfate generated by the photocatalytic reaction and performing thermal chemical decomposition to generate oxygen; the gas absorption and regeneration unit is connected with the thermochemical reaction unit and is used for absorbing and regenerating gas generated by thermochemical decomposition into a sacrificial agent and returning the sacrificial agent to the photocatalytic reaction unit; and the nuclear energy heat supply unit is used for providing heat required by reaction for the thermal chemical reaction unit. Solar energy and nuclear energy are efficiently cooperated, the hydrogen purity is larger than or equal to 99.9%, the comprehensive energy efficiency of the system is larger than or equal to 85%, the problem of consumption of a traditional photocatalytic sacrificial agent is solved, and a new path is provided for large-scale production of green hydrogen.
Owner:HUANENG SHANDONG SHIDAOBAY NUCLEAR POWER CO LTD

Novel polymer modification method using carboxylic acids, radicals, and nitrogen, supported by metallocenes

PCT designated stageWO2026128970A1Polymer modifiedPtru catalyst
A polymer modification method comprises: (a) contacting a polymer with at least one carboxylic acid selected from C2-C40 aliphatic, aromatic, or cyclic acids; (b) introducing free radicals via thermal, photochemical, or chemical decomposition; (c) adding at least one nitrogen compound; and (d) optionally incorporating a metallocene catalyst. The method enhances polymer properties (tensile strength, elongation, impact resistance) by 25-250%, reduces energy consumption 20-45% compared to virgin production, and enables processing of mixed polymer wastes. Applications include automotive components (20-40% recycled content), food-grade packaging (up to 35% recycled HOPE), construction materials, and waste valorization. The predictive radical chemistry enables controlled property enhancement through mathematical correlation between radical concentration, reaction kinetics, and polymer modification degree.
Owner:RESOLVE TECHNOLOGIES PTY LTD

Multi-element metal-based catalyst as well as preparation method and application thereof

The invention discloses a multi-element metal-based catalyst as well as a preparation method and application thereof, and belongs to the technical field of metal-based catalysts. The multi-metal-based catalyst takes an iron-based spinel oxygen carrier AB2O4 as a matrix, the A site is multi-metal compounding, and the B site uses a transition element to replace part of Fe; the general formula is MFe2-xNxO4, M is a multi-metal compound, N is a transition element, and x is more than or equal to 0.05 and less than or equal to 0.5. The multi-element metal-based catalyst MFe2-xNxO4 provided by the invention can be applied to a two-step thermochemical CO2 or H2O decomposition system and a two-step thermochemical methane dry / wet reforming system. According to the invention, the concentrated solar energy can be used for providing reaction heat for the reaction, CO2, H2O and other substances with wide sources are used as raw materials to prepare CO, H2, synthesis gas and other high value-added chemicals, the whole process can realize no coal consumption and zero carbon emission, and the method is a very clean and promising green fuel preparation technology.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Supercritical fluid-assisted gauze forming process and gauze material prepared by supercritical fluid-assisted gauze forming process

The invention discloses a supercritical fluid assisted gauze forming process and a gauze material prepared by the same, and belongs to the technical field of material forming. The process comprises the following steps: mixing TPU (thermoplastic polyurethane), PEI (polyetherimide), KH560 and PFDTES modified nano SiO2, and treating in supercritical CO2 at the temperature of 100-110 DEG C and the pressure of 15-25 MPa to form a homogeneous system; the preparation method comprises the following steps: performing pressure relief extrusion through a spinneret plate, utilizing a dual foaming mechanism of scCO2 physical precipitation and PEI-CO2 adduct chemical decomposition, and simultaneously inducing microphase separation through a PFDTES fluorocarbon chain, so as to construct a hierarchical pore structure of macropores (5-50 microns) among fibers and fluorinated mesopores (10-100 nm) in the fibers; and carrying out heat setting to complete a KH560-PEI cross-linking reaction so as to obtain the super-hydrophobic gauze. The porosity of the gauze is 85-92%, the water contact angle is larger than or equal to 150 degrees, the wet strength retention rate is larger than or equal to 70%, and the gauze can be used for efficient filtration, oil-water separation and self-cleaning fabric.
Owner:TAIWEI OPTICAL TECHNOLOGY CO LTD

Manufacturing method of low-odor shaving board

The invention belongs to the technical field of wood processing, and relates to a manufacturing method of a low-odor shaving board, which sequentially comprises the procedures of chipping, flaking, drying, sorting, gluing, paving, hot pressing, cooling and sanding, the surface layer wood shavings and the core layer wood shavings are independently glued, a mixed adhesive of a soybean protein adhesive and a polyvinyl acetate emulsion is used for the surface layer, and an MDI adhesive is used for the core layer; before sizing, a deodorant B is added into the surface layer mixed adhesive; adding a deodorant C into the MDI adhesive of the core layer; and the wood shavings obtained after sizing are laid according to the structure of surface layer-core layer-surface layer. Through the dual effects of physical adsorption and chemical decomposition, the odor release of the board is effectively reduced; key indexes such as internal bonding strength and static bending strength meet national standard requirements, microorganism breeding in the plate can be inhibited, and the service life is prolonged. The air purifier is suitable for the fields of medical treatment, children furniture and the like with strict air quality requirements, and meets high-end consumption requirements.
Owner:DARE WOOD BASED PANEL GRP

An intelligent kitchen waste processing system based on pneumatic auxiliary automatic bagging and multi-modal interaction

This invention discloses an intelligent food waste processing system based on pneumatically assisted automatic bagging and multimodal interaction. The system includes a bin and a lid, with the lid closable on top of the bin. A detachable inner bin is located inside the bin. The system is characterized by a gesture recognition unit on the lid and a garbage bag pressing unit, a garbage bag shaping unit, a garbage weighing unit, and a cooling unit inside the bin. The system also includes a main controller, which is signal-connected to the gesture recognition unit, garbage bag shaping unit, garbage weighing unit, and cooling unit. This intelligent food waste processing system achieves non-contact multi-command control through user-defined gesture paths. It combines low-temperature preservation, chemical decomposition, and biological antibacterial mechanisms for synergistic deodorization, enabling intelligent optimization and significantly improving the efficiency of the garbage bin.
Owner:SUZHOU MOAPLUS MASCH CO LTD

Rapamycin composition

The present invention provides a composition that suppresses the chemical decomposition of rapamycin during storage. [Solution] A local therapeutic composition, a) Rapamycin as the active ingredient; b) Vehicles including the following: ○Monolaurin, for example, as glyceryl monolaurate; and ○Monomyristate, for example, as glyceryl monomyristate; and c) Water as a solvent A composition containing the following:
Owner:AFT PHARM LTD

A supercritical fluid assisted web forming process and web materials produced thereby

ActiveCN122060212BPolymer scienceFiltration
The application discloses a supercritical fluid assisted mesh forming process and a mesh material prepared by the process, and belongs to the technical field of material forming. The process comprises the following steps: mixing TPU, PEI, KH560 and PFDTES modified nano-SiO2, and processing the mixture in supercritical CO2 at 100-110 DEG C and 15-25 MPa to form a homogeneous system; discharging and extruding through a spinneret, and utilizing the double foaming mechanism of scCO2 physical precipitation and PEI-CO2 adduct chemical decomposition, and meanwhile, PFDTES fluorocarbon chain induces microphase separation, so that a multi-level pore structure of inter-fiber macropores (5-50 mu m) and intra-fiber fluorinated mesopores (10-100 nm) is constructed; and the KH560-PEI crosslinking reaction is completed through heat setting, and the super-hydrophobic mesh is obtained. The mesh has a porosity of 85-92%, a water contact angle of greater than or equal to 150 DEG, and a wet strength retention rate of greater than or equal to 70%, and can be used for efficient filtration, oil-water separation and self-cleaning fabric.
Owner:TAIWEI OPTICAL TECHNOLOGY CO LTD

Glycolytic process for converting polyurethane foams into useful dispersions

The polyol dispersion is prepared by chemical decomposition of a polyurethane foam. The starting foam is compressed, degassed and combined with a polyol and wetted in a non-backmixing tubular reactor, and then digested to produce a polyol dispersion. This rapidly produces a rapidly digested reaction mixture. The method is very suitable for continuous operation. The polyol dispersions can be used to prepare polyurethanes.
Owner:DOW GLOBAL TECHNOLOGIES LLC

Intelligent cleaning system and method for floating objects in inspection well

The invention relates to the technical field of municipal pipeline cleaning, and discloses an inspection well floating object intelligent cleaning system and method.The cleaning system comprises a sensing and recognizing unit, a control unit, an agent adding unit and a mechanical cleaning unit, and the sensing and recognizing unit is arranged in an inspection well; the image acquisition module is used for acquiring water surface images and identifying distribution areas of solid floaters, oil stains and adhesion mixtures thereof; the control unit generates a time sequence operation instruction that the medicament adding unit acts prior to the mechanical cleaning unit according to the recognition result; the agent adding unit is used for adding a chemical treatment agent into the oil stain and adhesion mixture area; and the mechanical cleaning unit grabs and removes the solid floating objects and the treated residues. According to the invention, a sequential operation mode of first chemical decomposition and then physical grabbing is adopted, so that the problems of oil stain diffusion and incomplete cleaning of adhesive substances are solved, and efficient, complete and automatic cleaning of solid-oil mixed pollutants in the inspection well is realized.
Owner:THREE GORGES ENVIRONMENTAL TECH CO LTD +1

Cleaning device

The utility model discloses a cleaning device, and particularly relates to the technical field of cleaning devices, the cleaning device comprises a top cover, a shell and a cleaning piece, a first cavity and a second cavity which are mutually independent are arranged in the shell, the first cavity is used for containing a physical grinding type cleaning agent, and the second cavity is used for containing a chemical decomposition type cleaning agent; a first outlet and a second outlet are formed in the top face of the shell, the first outlet is communicated with the first cavity, the second outlet is communicated with the second cavity, the cleaning piece is fixedly connected with the top face of the shell, and the top cover is connected with the shell, covers the cleaning piece and is used for sealing the first outlet and the second outlet. Physical grinding cleaning and chemical decomposition cleaning can be carried out at the same time, the cleaning effect is improved, and the cleaning efficiency is improved.
Owner:LUOYANG BAONENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

High-efficiency flame-eliminating aerosol coolant and preparation method thereof

The invention relates to the technical field of fire extinguishing agents, and discloses an efficient flame-eliminating aerosol coolant and a preparation method, the coolant comprises a stable solid component, an auxiliary fire extinguishing component and an additive, the mass ratio of the stable solid component to the auxiliary fire extinguishing component to the additive is (20-50): (20-80): (2-20), the stable solid component is a solid component which is not decomposed at a high temperature or is still a solid component after being decomposed, and the proportion of the stable solid component in the coolant is 20% or above. According to the invention, a stable solid component is adopted to replace a traditional physical coolant, a stable physical form can be maintained in a high-temperature environment, and a physical barrier is formed to block flame propagation. And meanwhile, the auxiliary fire extinguishing components are easily subjected to chemical decomposition reaction under a high-temperature condition, so that the core fire extinguishing capacity of the coolant is not influenced. Therefore, the coolant has better cooling effect and flame suppression capability, is safe to use and is easy to prepare and form.
Owner:HUBEI JIANDUN FIRE TECH CO LTD

Tracheostomy tube full-process intelligent processor based on multi-mode sterilization

The utility model discloses a tracheostomy tube full-flow intelligent processor based on multi-mode sterilization, which comprises a casing, a soaking cabin, a boiling cabin and a drying cabin are sequentially arranged in the casing from top to bottom, a control panel and a power switch are arranged at the top of the casing, the soaking cabin is provided with a first cabin door and a first liquid inlet, and the boiling cabin is provided with a second cabin door and a second liquid inlet. A stirring device, a concentration sensor and an automatic liquid supplementing device are arranged in the soaking cabin, the boiling cabin is provided with a second cabin door and a second liquid inlet, a heating disc is arranged in the boiling cabin, one side of the boiling cabin is connected with a miniature vacuum pump, the drying cabin is provided with a third cabin door and a first liquid outlet, and a hot air nozzle is arranged in the drying cabin. The hot air nozzles are connected with an air blower located on one side of the drying cabin. The three-dimensional action mechanism of chemical decomposition, physical inactivation and mechanical stripping is constructed, the technical limitation of a traditional single sterilization mode is broken through, a three-cabin integrated structure is adopted, rapid sterilization can be achieved, and the cleaning efficiency of a tracheotomy sleeve cavity is greatly improved.
Owner:FUDAN UNIV SHANGHAI CANCER CENT

Process for recovering valuable substances from polyurethane foams

PendingCN122374375APolymer sciencePolyol
This invention relates to a method for recovering valuable substances from polyurethane foam, comprising (A) providing a polyurethane foam based on an isocyanate component and a polyol component, wherein the polyol component comprises a polyether polyol, said polyether polyol being a copolymer of ethylene oxide and at least one other epoxide different from ethylene oxide and containing 55% to 100% primary OH end groups in a molar ratio; and (B) chemically decomposing the polyurethane foam by reacting it with an organic chemical decomposition agent and water, wherein said organic chemical decomposition agent is selected from: (i) primary or secondary chemical decomposition amines, and (ii) chemical decomposition amino alcohols having primary or secondary amino groups. (iii) chemically decompose the alcohol, or (iv) a mixture of two or more of the said organic chemical decomposition reagents, to obtain a chemical decomposition product comprising the copolymer, at least one amine, and the organic chemical decomposition reagent; (c) distill off the organic chemical decomposition reagent; (d) extract the copolymer from the chemical decomposition product of the depleted organic chemical decomposition reagent with an extractant comprising an organic solvent and a C1 to C4 alcohol, wherein acid and water are added, and after separation of the acidic aqueous phase, a polyol phase comprising the organic solvent, a C1 to C4 alcohol, and the copolymer is obtained; and (E) post-treat the polyol phase to obtain the copolymer.
Owner:COVESTRO DEUTSCHLAND AG

Preparation method of zirconium-iron red pigment for ceramic inkjet and application thereof

The application provides a preparation method of a zirconium-iron red pigment for ceramic inkjet printing, and comprises the following steps: S1: a first dispersant solution is mixed with a zirconium-containing powder to perform first ball milling, to obtain a first mixed slurry; S2: the first mixed slurry is mixed with an iron-containing powder to perform second ball milling, to obtain a second mixed slurry; S3: the second mixed slurry is subjected to third ball milling, to obtain a third mixed slurry; the third mixed slurry is subjected to solid-liquid separation, and the solid phase material is taken out, dried, mixed with a silica sol and a second dispersant solution, and subjected to fourth ball milling, to obtain a fourth mixed slurry; and S4: the fourth mixed slurry is dried, mixed with a fluoride mineralizer, and calcined, to obtain the zirconium-iron red pigment for ceramic inkjet printing. The application selects raw materials, combines physical grinding and chemical decomposition reaction, reduces the particle size of reactants, reduces the reaction temperature, and finally obtains the zirconium-iron red pigment with a particle size of less than 1 microns, which is applied to ceramic inkjet printing.
Owner:FOSHAN CITY SANSHUI GOLDEN EAGLE INORGANIC MATERIALS CO LTD

Chemical decomposition using catalytic reactor heated by magnetic induction

A system can include a catalytic reactor heated using magnetic induction to perform a magnetically induced decomposition reaction. The catalytic reactor can include a housing coupled with a feedstock source to receive a flow of an inorganic compound in gaseous form that can flow through the catalytic reactor. The housing can include a metal-based catalyst selected to decompose the inorganic compound into one or more reaction products within a predefined temperature range. The metal- based catalyst can include a heating agent that can increase in temperature when exposed to a magnetic field. A coil can be positioned around the housing to provide the magnetic field to heat the metal-based catalyst using magnetic induction to be within the predefined temperature range
Owner:TECHNIP ENERGIES FRANCE SAS

Double-enzyme anhydrous complex coupling acid-base fast-disintegrating porous toothpaste

This invention discloses a dual-enzyme anhydrous compounded acid-base rapid-disintegration porous toothpaste, belonging to the field of oral care product technology. The toothpaste is composed of the following raw materials: 9.0 parts sodium bicarbonate, 4.5 parts anhydrous citric acid, 6.0 parts crospovidone, 27.5 parts microcrystalline cellulose, 1.5 parts embedded complex biological enzyme, 3.5 parts powdered sodium lauroyl sarcosinate, 1.5 parts powdered sodium cocoyl glutamate, 22.0 parts spherical micro-powdered hydrated silica, 0.75 parts sodium monofluorophosphate, 1.5 parts anhydrous sodium pyrophosphate, 7.0 parts low-hygroscopic sorbitol, 0.2 parts sucralose, 0.8 parts pre-adsorbed peppermint flavor, 0.75 parts magnesium stearate, and 0.5 parts powder-embedded phenoxyethanol. This invention utilizes an anhydrous powder formulation design, taking advantage of the synergistic disintegration effect of an acid-base effervescent system and cross-linked polyvinylpyrrolidone, combined with the chemical decomposition of plaque biofilm by microencapsulated dual enzymes, to achieve rapid disintegration of the lozenge in the mouth and release of micro-nano bubbles. It can complete oral cleaning without the need for toothbrush friction, and is characterized by being gentle, portable, rapid disintegration and leaving no residue.
Owner:石宏双

Refrigeration device and refrigeration cycle system

To suppress corrosion of components of a refrigerant circuit.SOLUTION: A refrigeration device (10A, 10B) includes a component (80, 57, 613, 13) and a refrigerant (R). The component (80, 57, 613, 13) is made of aluminum or aluminum alloy. The refrigerant (R) is hydrocarbon-based. The refrigerant (R) is obtained by chemical synthesis or chemical decomposition of a raw material. The feedstock includes at least two of CO, CO2, H2O, and H2.SELECTED DRAWING: Figure 1
Owner:DAIKIN INDUSTRIES LTD