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61results about How to "Suitable for industrial applications" patented technology

Power battery disassembling and recycling device

The invention relates to the technical field of battery disassembling and recycling, in particular to a power battery disassembling and recycling device which comprises a case, a feeding hopper and a discharging box, and the feeding hopper is communicated with a discharging opening of external crushing equipment. According to the power battery disassembling and recycling device, through the synergistic effect of the centrifugal assembly and the vibration assembly, namely, centrifugal force generated by a rotatable centrifugal tube under the driving of the power mechanism is utilized to separate electrolyte, and meanwhile, the driving mechanism drives the upper sliding plate and the lower sliding plate to synchronously vibrate up and down through the moving rod; the blocked residual electrolyte in the battery fragments is effectively exposed and thrown out, so that the recovery efficiency and thoroughness are greatly improved; the connecting assembly adopts a connecting ring and a gold wire hose to ensure the sealing performance of material conveying, and the air blowing auxiliary drying of an air outlet ring and the collection design of an elastic sealing gasket and a negative pressure pipeline are combined, so that the risks of electrolyte leakage and environmental pollution are remarkably reduced, and safe, efficient and comprehensive recovery of the electrolyte in the power battery disassembling process is realized.
Owner:ANHUI YINGBIAO NEW MATERIAL TECH CO LTD

Method and apparatus for treating acrylonitrile off-gas

PendingCN122251969Aeasy to handleImprove the effect of adsorption treatmentDispersed particle separationAcrylonitrileProcess engineering
The present application relates to waste gas treatment process field, disclose a kind of acrylonitrile waste gas treatment method and device, the method includes the following steps: (1) the concentration of acrylonitrile waste gas is adjusted to 0.5-2000mg / m 3 ; (2) the acrylonitrile waste gas is sent to adsorption unit at 80-120m 3 / h flow rate for adsorption treatment, wherein the adsorption unit has one or more than two adsorption devices, in the process of adsorption treatment, the acrylonitrile waste gas is injected below the water surface in tower body, and the water in the tower body is continuously circulated and output, and after cooling, it is sprayed from the top of the tower body into the tower body.The method in the present application has the advantages of simple treatment process, low cost, more energy saving and environmental protection, and the method uses multi-stage adsorption process, different adsorption stages can be selected according to the adsorption treatment effect, the adsorption device can be switched and maintained in time, and the waste gas treatment effect is still good, more suitable for industrial application.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Deep eutectic solvent, preparation method and application thereof, and method for selectively extracting lithium from lithium battery positive electrode material

The invention belongs to the technical field of metal separation, and particularly relates to a deep eutectic solvent, a preparation method and application thereof, and a method for selectively extracting lithium from a lithium battery positive electrode material. According to the deep eutectic solvent provided by the invention, nearly 100% selective leaching of lithium is realized in an extremely short time, and Ni, Co and Mn are almost not leached, so that the bottleneck that the rate and the selectivity are difficult to obtain at the same time in a traditional method is broken through; and the process conditions are mild and efficient, are far superior to the traditional process and are more suitable for practical industrial application, and the energy consumption and material consumption are remarkably reduced.
Owner:NANCHANG HANGKONG UNIVERSITY

6-methyl-3, 5-dioxocapryloyl coenzyme A as well as preparation method and application thereof

ActiveCN121851075Aprove correctnessAccurate acyl transferSugar derivativesSugar derivatives preparationChemical synthesisButyrate
The invention relates to a preparation method and application of 6-methyl-3, 5-dioxocapryloyl coenzyme A. According to the preparation method, 2-methylbutyric acid serves as a starting raw material, the 6-methyl-3, 5-dioxocapryloyl coenzyme A is chemically synthesized through the steps of activation, condensation, coenzyme A coupling and the like, and the structure and purity of the 6-methyl-3, 5-dioxocapryloyl coenzyme A are identified through the technologies of LC-MS / MS, 1HNMR and the like. The nine-carbon coenzyme A is successfully prepared and identified through a chemical synthesis method for the first time, the core problem that an intermediate is unstable and cannot be obtained in vitro is solved, and a stable substrate is provided for in-vitro acyl transfer; the QS-21 in-vitro acyl transfer reaction is realized for the first time, an in-vitro catalytic system of a chemical synthesis intermediate and an insect cell expression enzyme is established, and a foundation is laid for development of a QS-21 total synthesis process.
Owner:WUHAN TANGZHI PHARM CO LTD +1

Low-carbon coconut fiber modified ardealite vegetation concrete and preparation method thereof

The invention discloses low-carbon coconut fiber modified ardealite vegetation concrete and a preparation method thereof. The ardealite vegetation concrete is prepared from the following components in parts by mass: 10 to 15 parts of anhydrous ardealite, 65 to 80 parts of natural aggregate, 0.5 to 2.5 parts of carbide slag, 3 to 9 parts of mineral powder, 0.07 to 0.5 part of alkali modified coconut fiber and 0.1 to 0.5 part of water reducing agent. The low-carbon coconut fiber modified ardealite vegetation concrete has excellent mechanical properties, ecological compatibility and durability, and the preparation method is simple, low in cost and suitable for industrial application.
Owner:CENT SOUTH UNIV

Electrolyte containing polyanionic electrolyte additive and flow battery

PendingCN121905910AReduce chances of direct contactincrease repulsionElectrolyte stream managementRegenerative fuel cellsSupporting electrolyteElectrolytic agent
The invention belongs to the technical field of flow batteries, and relates to an electrolyte containing a polyanionic electrolyte additive and a flow battery. Comprising a viologen compound, a supporting electrolyte, a solvent and a polyanionic electrolyte additive, the polyanionic electrolyte additive accounts for 0.1%-20% of the electrolyte in percentage by mass; molecules of the polyanionic electrolyte additive are rich in various functional groups with negative charges, and the polyanionic electrolyte additive is used for interfering the pi-pi accumulation behavior of viologen molecules; the polyanionic electrolyte additive is a polymer containing a repetitive unit, and is sodium polystyrenesulfonate, sodium polyacrylate, poly (2-acrylamido-2-methyl sodium propanesulfonate) or sodium alginate. By introducing a polymer carrying high-density negative charges in the structure or aggregated inorganic anions, multiple regulation and control effects on viologen molecules in a water-phase environment are realized, aggregation behaviors of reduced molecules of the viologen molecules are remarkably inhibited, and chemical and electrochemical stability of the electrolyte is improved.
Owner:HUANENG CLEAN ENERGY RES INST

A method for preparing substituted aminoethanol

This invention provides a method for preparing substituted aminoethanols in the field of pharmaceutical and chemical synthesis technology. It employs a continuous flow reaction process, using the corresponding substituted amine and ethylene oxide as raw materials, reacting in a tubular fixed bed packed with solid superacid resin supported on cerium nitrate. This significantly improves the selectivity of the monohydroxyethylation reaction. It overcomes the drawback of traditional processes where ethylene oxide easily undergoes a chain reaction with the substituted amine, generating polyhydroxyethyl substituted amine byproducts and polyether byproducts. The process achieves inherent safety in the preparation of substituted aminoethanols, representing a significant improvement and innovation over existing technologies. It is particularly suitable for industrial applications and has excellent potential for widespread adoption.
Owner:GAOYOU CITY ORGANIC CHEM FACOTRY

A process for the preparation of ethyl acetoacetate by crude ester recycle cooling

ActiveCN116037028BTimely and effective dilutionSolve the problem of rapid temperature riseOrganic compound preparationTransportation and packagingChemical industryAcetic acid
The application discloses a process method for preparing ethyl acetoacetate by crude ester circulation cooling, and belongs to the technical field of chemical industry. The method can dilute the heat generated in the reaction in time and effectively by performing crude ester circulation in the continuous reaction process, better solves the problem of heat accumulation in the reactor, and cannot dissipate heat in time, thereby causing the problem of rapid temperature rise, and avoids the "flying temperature" in the reaction process; the temperature in the reactor is stable without other complex and strict operation control, the operation is simple and feasible; the content of the crude product, the product quality and the yield are improved; the content of the crude methyl acetoacetate obtained by the method is 97.8-98.1%, the content of the finished product after rectification is 99.5-99.7%, and the product yield is 97.8-98.2%; the high-temperature resistance requirement of the pipeline equipment is reduced, and the safety hidden danger is reduced.
Owner:NANTONG ACETIC ACID CHEM

Lignin-based formaldehyde-free adhesive, lignin-based plywood and preparation method and application of lignin-based formaldehyde-free adhesive

The invention relates to the field of refining and application of wood fiber biomass, and discloses a lignin-based formaldehyde-free adhesive, a lignin-based plywood and a preparation method and application of the lignin-based formaldehyde-free adhesive and the lignin-based plywood. The lignin-based formaldehyde-free adhesive disclosed by the invention comprises the following components: L-cysteine lignin, and the solid content of the lignin-based formaldehyde-free adhesive is 10-45wt%. The method comprises the following steps: mixing an aqueous solution of L-cysteine hydrochloride and lactic acid with raw materials for pretreatment; performing extraction and vacuum filtration on the obtained suspension to obtain dissolved lignin and hemicellulose filtrate, and performing extraction and purification on the filtrate to obtain L-cysteine lignin; the lignin-based formaldehyde-free adhesive is prepared by uniformly dispersing the L-cysteine lignin in water. According to the invention, the used solvent is green and nontoxic in source, the hydrated lignin-based adhesive with good fluidity is prepared with low solid content, and the prepared plywood shows excellent dry and wet bonding strength, solvent resistance and weather resistance, and meets the preparation requirements of national I-class plywood.
Owner:SOUTH CHINA UNIV OF TECH

A slitting machine winding arm mechanism

The utility model relates to a slitting machine design technical field especially relates to a slitting machine winding arm mechanism. Including riser, install first support axle of riser, support arm rotates and installs first support axle end portion, install the gas inflation axle of one end of support arm away from first support axle, install below support arm, and one end and support arm middle part rotation link together's first connecting piece, install second connecting piece of one end away from support arm of first connecting piece, and with first connecting piece rotation link together's second connecting piece, install second support axle of one end away from first connecting piece of second connecting piece, and with second connecting piece rotation link together's second support axle, install first drive air cylinder of second connecting piece upper side, and with second connecting piece close first connecting piece one end rotation link together.
Owner:东莞东菱自动化科技有限公司

An infrared camouflage composite yarn, its preparation method and application

ActiveCN117802650BReduce or even avoid transfersReduce or even avoid structureYarnYarnAl powder
This invention discloses an infrared camouflage composite yarn, its preparation method, and its application. The preparation process involves first preparing a preform, then dispersing aluminum powder and tin-doped indium oxide powder on a softened film to form an infrared-resistant film. The infrared-resistant film is then coated onto the preform using a layered structure design to prepare a composite preform. Combined with heat treatment, the yarn is then hot-stretched to obtain the improved infrared camouflage composite yarn. The infrared camouflage composite yarn prepared by this invention not only possesses excellent infrared camouflage capability and durability, but the addition of functional particles does not significantly affect the yarn's mechanical properties, such as breaking strength. The functional particles maintain uniform dispersion, improving the uniformity of infrared camouflage performance. This method is suitable for preparing infrared camouflage products, such as military jackets, tents, and backpacks.
Owner:苏州市意轩坤纺织整理有限公司

Positive electrode active material, method for preparing the same, secondary battery, and electric device

ActiveCN118630153BHigh standardavoid mass productionSecondary cellsPositive electrodesElectrical batteryCrystallinity
This application provides a positive electrode active material, a method for preparing the same, a secondary battery, and an electrical device. The positive electrode active material comprises a polyanionic compound having the general formula shown in Formula I. The crystallinity of the positive electrode active material is 0.8–1, wherein M includes at least one of Mg, Al, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Sn, Hf, Ta, W, and Pb; 1≤x≤7, 1≤y1+y2≤4, 1≤z≤2, and 1≤k≤4. This positive electrode active material has a high degree of crystallinity, which is beneficial for improving the initial discharge capacity of the battery.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Dialyzer capping and labeling integrated machine

ActiveCN224466331UImprove industrial production efficiencyhigh degree of automationProcess engineeringTesting Methods
The utility model relates to dialyzer design technical field especially relates to a dialyzer covers and labels integrated machine. Including conveying device and along the conveying device's conveying direction setting cover and label device of dialyzer in proper order in proper order, wherein, the conveying device is used for dialyzer according to preset path advance, cover and label device are equipped with two groups, two groups cover and label device symmetry and install conveying device's both sides, cover and label device includes the feeding assembly for conveying first end cover and second end cover, and the first end cover and the second end cover are used for receiving the feeding assembly output, and the first end cover and the second end cover are covered in the center connecting column and the side connecting column of dialyzer side department correspondingly, and the cover component of the first end cover and the second end cover, cover and label device, cover and label device are used for the table side of dialyzer and carry out label.
Owner:GUANGDONG FINECO MASCH GRP CO LTD

1-(4-aminophenyl)-3-[(4-aminophenyl) carbamoylamino] urea as well as preparation method and application thereof

The invention discloses 1-(4-aminophenyl)-3-[(4-aminophenyl) carbamoylamino] urea as well as a preparation method and application thereof. The 1-(4-aminophenyl)-3-[(4-aminophenyl) carbamoylamino] urea product is obtained by reacting p-phenylenediamine and diethyl azodicarboxylate under the action of a catalyst. The method is simple in process, milder in reaction condition, easier to control, high in environmental protection property, low in danger coefficient, high in yield and more suitable for industrial application. The product can interact with carbon black to improve the dispersion of carbon black with high specific surface area, can react with carbon-carbon double bonds in natural rubber to form a stable cross-linked network, improves the anti-reversion performance of a rubber material, and has more important social significance and higher economic value.
Owner:SHANDONG YANGGU HUATAI CHEM

Sucrose synthase mutant, method for preparing same, product and use thereof

This invention belongs to the fields of genetic engineering and enzyme engineering, specifically relating to a sucrose synthase mutant, its preparation method, product, and application. The mutant is based on the amino acid sequence of the wild-type sucrose synthase shown in SEQ ID NO.1, with the 94th amino acid mutated from P to N, resulting in the amino acid sequence shown in SEQ ID NO.2; or the 660th amino acid mutated from Y to H, resulting in the amino acid sequence shown in SEQ ID NO.3. This mutant can be used for in vitro glycosylation reactions, plant genetic improvement, or industrial biocatalysis, solving the technical problems of poor stability and low catalytic efficiency of natural enzymes.
Owner:ANHUI JINHE INDUSTRIAL CO LTD +1

Modular biological reaction sewage treatment equipment

The utility model relates to the technical field of sewage treatment design, in particular to modular biological reaction sewage treatment equipment. Comprising a sewage treatment tank, a mounting cavity is formed in the sewage treatment tank, and an impurity filtering cavity for filtering impurities and a sewage treatment cavity for biological purification are arranged above and below the mounting cavity respectively; a mounting box is arranged in the mounting cavity, and the side part of the mounting box is mounted in the sewage treatment tank through a connecting plate; a driving unit is arranged in the mounting box; a filter barrel mounted on the mounting box is arranged in the sewage treatment cavity; filtering holes are formed in the side wall of the filtering barrel, and the bottom of the filtering barrel is connected with the driving unit and used for driving the filtering barrel to rotate under the driving of the driving unit; a stirring assembly is arranged in the sewage treatment cavity; the driving unit is connected with the stirring assembly and is used for driving the stirring assembly to work, so that the stirring assembly stirs sewage falling into the sewage treatment cavity.
Owner:GUANGDONG YONGJI CITY OPERATION MANAGEMENT CO LTD

American ginseng saponin extraction equipment

The utility model relates to the technical field of American ginseng saponin extraction design, in particular to American ginseng saponin extraction equipment. Comprising an extraction box, and the extraction box internally comprises a feeding cavity used for conveying an American ginseng extracting solution, a working cavity connected with the feeding cavity and a condensation cavity installed on one side of the working cavity; wherein a filter cartridge, a first rotating shaft, a first stirring rod, a second stirring rod, a cutting knife, a driving assembly and a heating pipe are arranged in the working cavity; and a condensation pipe communicated with the upper part of the working cavity is arranged in the condensation cavity. According to the American ginseng saponin extraction equipment disclosed by the utility model, due to the arrangement of the feeding cavity, the working cavity and the condensing cavity, the extraction efficiency and the extraction effect of American ginseng saponin are greatly improved, and the American ginseng saponin extraction equipment is suitable for industrial application.
Owner:CANADA CHINESE MEDICINE HEALTH TECHNOLOGY (GUANGDONG) CO LTD

Detergent for polymer deliming treatment, application of detergent and washing method for washing and deliming polypropylene

The invention relates to the field of polymer product production methods, and discloses a detergent for polymer deliming treatment, application of the detergent and a washing method for washing and deliming polypropylene, the detergent comprises a swelling agent and a complexing agent, and the complexing agent is an ester substance. The detergent provided by the invention has a good de-ashing effect on polymer products such as polypropylene products, and the ash content of the polypropylene products can be reduced to 50 ppm or below and can be reduced to 16 ppm at the minimum. The washing effect is excellent, the tedious operation of multiple times of washing is avoided, and the procedure is simple.
Owner:PETROCHINA CO LTD

An ETPU foam forming machine

ActiveCN224446617Utightly boundAccurately move in placeMolding machineMechanical engineering
This utility model relates to the field of foam molding design technology, and in particular to an ETPU foam molding machine. It includes a base plate, a lower mold mounted above the base plate, an upper mold mounted above the lower mold, a drive assembly connected to the upper mold for driving the upper mold to move vertically relative to the lower mold, thereby enabling the upper and lower molds to close and open; a mold-locking assembly for restricting the relative movement of the upper and lower molds when they are closed; and a heat dissipation assembly mounted on the side of the lower mold. The ETPU foam molding machine of this utility model, through the setting of the mold-locking assembly, ensures that the upper mold can move precisely into position when the mold is closed, and also guarantees a tight fit between the upper and lower molds when they are closed.
Owner:GUANGDONG FUMEI NEW MATERIALS TECHNOLOGY CO LTD

A method and device for constructing a microdroplet self-fenton system

This invention discloses a method and apparatus for constructing a microdroplet self-Fenton system. The construction method includes the following steps: mixing an iron salt with an acidic solution, and subjecting the resulting mixed solution to ultrasonic atomization to form micron-sized droplets, thereby obtaining the microdroplet self-Fenton system. The construction apparatus includes an atomizing reactor for storing the mixed solution and an ultrasonic generator for providing ultrasonic waves. The microdroplet self-Fenton system constructed by this invention has the following advantages: good adaptability, enabling the acquisition of a self-Fenton system under conditions of no light, no catalyst, and no sacrificial agent; it helps to increase the generation rate and yield of ·OH in the system, giving the system stronger redox capabilities and enabling efficient degradation of organic pollutants, providing important guidance for promoting the effective treatment of organic pollutant wastewater; the process is simple, easy to operate, low in cost, environmentally friendly, suitable for industrial applications, and facilitates the effective treatment of organic pollutant wastewater.
Owner:HUNAN UNIV

A high-entropy alloy coating special for blue laser cladding and a preparation method thereof

PendingCN122503861AImprove absorption rateNo macro cracks
The application discloses a high-entropy alloy coating special for blue laser cladding and a preparation method thereof. (1 x) Ti x , and x is in the range of 0.25-0.75. The preparation method comprises the following steps: substrate pretreatment, alloy powder proportioning and ball milling mixing, and blue laser cladding. The application realizes the synergistic regulation of alloy phase composition and microstructure by Al and Ti elements, forms a FCC+BCC dual-phase structure, has fine and uniform grains, and is free of macroscopic cracks, and the precipitation of intermetallic compounds is significantly inhibited. The coating and the substrate are metallurgically combined, have high hardness, excellent wear resistance and corrosion resistance, the application fully utilizes the advantages of high blue laser energy absorption rate, stable molten pool and fast cooling rate, solves the problems of cracks, segregation and poor forming in infrared laser cladding, and is suitable for surface strengthening and remanufacturing in the fields of marine engineering, molds, aerospace and the like.
Owner:SOUTH CHINA UNIV OF TECH +1

Denitration reactor and method for flue gas denitration

This invention relates to the field of environmental protection technology and discloses a denitrification reactor and a method for flue gas denitrification. The denitrification reactor includes an outer shell and an inner liner. Superheated steam is introduced between the outer shell and the inner liner to heat the inner liner. The inner liner is further divided into a baffled mixing zone and a catalytic reaction zone. The flue gas is first heated to the temperature required for the catalytic reaction in the baffled mixing zone, and then enters the catalytic reaction zone to react. The catalytic reaction zone is always at a high temperature, which prevents the formation of ammonium salts that cover and block the fiber pores of the tube wall during the denitrification process. Furthermore, the heat utilization is more efficient. The three processes of flue gas heating, denitrification reaction, and dust removal can be completed with a single device. It can simply and quickly heat, denitrate, and remove dust from the flue gas to meet emission requirements. The operation is simpler, the denitrification index is stable, and the equipment has a long service life, making it more suitable for industrial applications.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2

Resource utilization method of electrolytic aluminum waste residues

The invention belongs to the technical field of recycling of electrolytic aluminum waste residues, and particularly relates to a resource utilization method of electrolytic aluminum waste residues, which comprises the following steps: 1) performing high-temperature calcination treatment on the electrolytic aluminum waste residues to obtain flue gas and furnace slag; 2) mixing the obtained slag with water, continuously blowing high-pressure air into the obtained mixture, and carrying out cavitation extraction to obtain an extract liquid; (3) filtering the obtained leaching liquor while the leaching liquor is hot to obtain filtrate and filter residues; (4) introducing the flue gas obtained in the step (1) into the filtrate, crystallizing and filtering to obtain a lithium carbonate-containing product; (5) tail gas obtained after the flue gas obtained in the step (4) is introduced into the filtrate is subjected to photocatalytic reduction to obtain CO; according to the method, complete resource utilization of the electrolytic aluminum waste residues is achieved under the condition that acid is not added, and the method has the advantages of being high in lithium recovery rate, simple in step, low in carbon, low in energy consumption, low in emission and high in safety and is quite suitable for industrial application.
Owner:SCIMEE TECH & SCI CO LTD

Magnetic nano-corrosion inhibitor, preparation method and application thereof

This invention belongs to the field of corrosion protection technology, specifically relating to a magnetic nano-corrosion inhibitor, its preparation method, and its application. The magnetic nano-corrosion inhibitor is formulated from Fe3O4@imidazoline nanocomposite material, dispersant, synergist, and water in a predetermined mass ratio. The Fe3O4@imidazoline nanocomposite material is obtained by reacting hydrogen peroxide with an imidazoline-based Fe3O4 precursor, which is obtained by reacting ferric chloride, oleic acid, and ethylenediamine. It is applied to equipment requiring corrosion protection in oil and gas field surface gathering and transportation projects. This corrosion inhibitor can adsorb onto the pipeline surface, increasing the toughness of the protective film, enhancing the adsorption effect of imidazoline, providing long-term protection against pipeline corrosion, exhibiting a significant corrosion inhibition effect, and is low in cost, simple to operate, and produces no secondary pollution.
Owner:XIAN JIANPU NEW MATERIAL TECHNOLOGY CO LTD

A gallium-lanthanum co-modified cobalt-iron bimetallic catalyst, its preparation method and application

This invention discloses a gallium-lanthanum co-modified cobalt-iron bimetallic catalyst, its preparation method, and its application, comprising the following steps: S1. A mixed metal salt solution and a precipitant solution are added dropwise to a reactor in a co-current manner to react and obtain a solution containing a precipitate; the mixed metal salt solution contains soluble salts of cobalt, iron, gallium, and lanthanum; S2. The precipitate is aged, then separated, washed, dried, and finally calcined to obtain the gallium-lanthanum co-modified cobalt-iron bimetallic catalyst. This invention optimizes the electronic structure, surface adsorption sites, and oxygen vacancy concentration through Ga / La dual-auxiliary modification, increases CO non-dissociative adsorption sites, inhibits the formation of byproducts such as carbon dioxide and methane, strengthens C-C coupling and carbon chain growth, and significantly improves catalytic activity and C... 2+ Alcohol selectivity, higher alcohol yield, and catalytic stability.
Owner:CHINA PINGMEI SHENMA ENERGY & CHEM GRP CO LTD +1

CuS rich in sulfur defects, and a preparation method and application thereof

The application relates to the technical field of inorganic materials, in particular to a sulfur-defect-rich CuS and a preparation method and application thereof. The preparation method comprises the following steps: S1, mixing CuS, a dispersing agent and an organic sulfur source in the presence of a solvent to form a slurry; S2, performing wet ball milling on the slurry, performing solid-liquid separation, taking the solid, washing and drying to obtain a precursor; S3, annealing the precursor under vacuum to obtain the sulfur-defect-rich CuS; wherein the wet ball milling process adopts intermittent ball milling at a rotating speed of 400-600 r / min for 2-4 h. Through the above wet ball milling, sulfur source induction and vacuum heat treatment steps, the sulfur-defect-rich CuS can efficiently remove selenium in wastewater.
Owner:CHANGSHA SCI ENVIRONMENTAL TECH +1

An antibacterial polyolefin elastomer fiber and a method for preparing the same

The present application relates to the technical field of textile fibers, in particular to an antibacterial polyolefin elastomer fiber and a preparation method thereof, the preparation method being: mixing and granulating antibacterial polyolefin elastomer materials to obtain spinning granules; the antibacterial polyolefin elastomer materials comprising ethylene-propylene copolymer A, maleic anhydride grafted ethylene-octene copolymer B and antibacterial agent C; the antibacterial agent C comprising hydroxyl modified nano-silver, polyhexamethylene guanidine hydrochloride and silane coupling agent; and the spinning granules being subjected to melt spinning to obtain the antibacterial polyolefin elastomer fiber. The antibacterial polyolefin elastomer fiber has broad-spectrum antibacterial property, and the fiber has good mechanical properties and elasticity, and the spinning process is smooth, being suitable for industrial application. The present application has simple process, low cost and green environmental protection, and the prepared antibacterial polyolefin elastomer fiber can be applied to various scenes such as antibacterial close-to-body textiles, medical protection, baby products and the like.
Owner:YANTAI TAYHO ADVANCED MATERIALS RES INST CO LTD +1

A multifunctional cake layering and unmolding device

ActiveCN224268027UAccurately adapts to differences in layer heightsAddress structural damage
This utility model provides a multifunctional cake layering and demolding device, relating to the field of food manufacturing technology. It includes a placement board with a top ejector port at the center of its top. A turntable is mounted outside the top ejector port, driven by a motor. A cake mold is placed on top of the turntable. Side plates are engaged on both sides of the top of the placement board, and telescopic controllers are installed in the center of each side plate. Telescopic controllers are connected to telescopic cylinder assemblies at their ends, and sliding plates are engaged at the ends of the cylinder assemblies. Through the height adjustment design of the sliding plates and sliding sleeves, the device can precisely adapt to the height differences of multiple cake layers. Combined with the top ejector plate, it smoothly lifts the cake, ensuring each layer is independently separated and preventing layer adhesion or surface damage. Compared to traditional methods of simply pushing out or tapping the cake, this device effectively solves the problem of cake structural damage during demolding, ensuring the integrity and aesthetics of the finished product. It is particularly suitable for the needs of professional baking and mass production.
Owner:SHANGHAI HUIHONGQUAN FOOD CO LTD

Preparation methods and applications of a class of bis(trichloromethyl)S-triazine compounds

PendingCN122079912Ahigh yieldMeets high-purity requirementsOrganic chemistryEnergy modified materialsTrichloroacetonitrileBenzaldehyde
This invention belongs to the field of organic chemistry, specifically relating to a method for preparing and applying a class of bis(trichloromethyl)S-triazine compounds. The method provides that benzonitrile compounds are used as starting materials, undergoing a cyclotrimerization reaction with trichloroacetonitrile, followed by a Knevengel reaction with benzaldehyde compounds to obtain bis(trichloromethyl)S-triazine compounds. The preparation method of this invention is simple, with easily controllable temperature and few impurities throughout the process; it significantly reduces costs and greatly improves purity and yield, achieving purities >99% and yields >70%; the products have good solubility; more importantly, almost all compounds exhibit more active inhibitory effects on HepG2 human liver cancer cells than the control cisplatin; making these compounds not only suitable as photochemical agents in the chemical industry but also beneficial for screening tumor therapeutic drugs.
Owner:CONTINENTAL SEMICONDUCTOR ELECTRONIC MATERIALS (QINGDAO) CO LTD