Patents
Literature
Eureka-AI is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Eureka AI

805 results about "Material Separation" patented technology

Method for recycling waste lithium cobalt oxide lithium ion battery

The invention relates to a method for recycling waste lithium cobalt oxide lithium ion battery. The method is characterized in that valuable components in the waste lithium ion battery are completely recycled by integrating the processes of crushing by a punch press, magnetic separation, eddy current selection, anaerobic atmospheric roasting, temperature-variable filtering and the like, and products with the relatively high additional values, such as elemental crude cobalt, lithium carbonate, graphite, copper, aluminum, iron, and plastics are obtained. Manners of crushing by a punch press, magnetic separation, eddy current selection and the like are adopted for performing material separation, so that the original physical properties of materials are kept. Meanwhile, positive powder and negative powder of an electrode material are cooperatively treated, the negative graphite material is effectively utilized, the in-situ preparation of a resource can be realized, and the waste lithium ion battery can be relatively completely recycled. The anaerobic atmospheric roasting is adopted, so that the reaction condition is relatively loose, the loss of a graphite material is reduced, the cost is saved, the technological flow is simplified, and the industrial application practice can be facilitated.
Owner:SHANGHAI JIAO TONG UNIV

Preparation method for microporous membrane having multi-scale gradient micro-structure surface

ActiveCN103611437APlay the role of inner support reinforcementControllable areaSemi-permeable membranesMicro structureUltrafiltration
The present invention relates to a preparation method for a microporous membrane having a multi-scale gradient micro-structure surface. The method comprises: fixing a screen mesh on the upper surface of a rough flexible substrate, coating a polymer solution layer with a thickness of 50-500 mum on the upper surface of the screen mesh at a constant speed, curing, washing, and carrying out simple mechanical peeling to remove the rough flexible substrate to obtain the microporous membrane having the multi-scale gradient micro-structure surface. According to the present invention, the process of the method is simple, the membrane area can be controlled, continuous production can be achieved, mechanical properties of the membrane are high, and the membrane has super-hydrophobic or super-hydrophilic property, wherein the super-hydrophobic membrane has super-lipophilic property, and the super-hydrophilic membrane has super-oleophobic property under water and has super-hydrophobic property under oil; and the obtained membrane can be adopted to effectively separate various oil and water mixtures including nano-scale oil water emulsions, and can further be used in fields of self-cleaning ultrafiltration/microfiltration membrane sewage treatments, medical sterilization, food turbidity removal, sterilization, material separation, membrane distillation, and the like.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI

Laser-processed substrate for molecular diagnostics

Surface enhanced Raman Scattering (SERS) and related modalities offer greatly enhanced sensitivity and selectivity for detection of molecular species through the excitation of plasmon modes and their coupling to molecular vibrational modes. One of the chief obstacles to widespread application is the availability of suitable nanostructured materials that exhibit strong enhancement of Raman scattering, are inexpensive to fabricate, and are reproducible. I describe nanostructured surfaces for SERS and other photonic sensing that use semiconductor and metal surfaces fabricated using femtosecond laser processing. A noble metal film (e.g., silver or gold) is evaporated onto the resulting nanostructured surfaces for use as a substrate for SERS. These surfaces are inexpensive to produce and can have their statistical properties precisely tailored by varying the laser processing. Surfaces can be readily micropatterned and both stochastic and self-organized structures can be fabricated. This material has application to a variety of genomic, proteomic, and biosensing applications including label free applications including binding detection. Using this material, monolithic or arrayed substrates can be designed. Substrates for cell culture and microlabs incorporating microfluidics and electrochemical processing can be fabricated as well. Laser processing can be used to form channels in the substrate or a material sandwiched onto it in order to introduce reagents and drive chemical reactions. The substrate can be fabricated so application of an electric potential enables separation of materials by electrophoresis or electro-osmosis.
Owner:EBSTEIN STEVEN M

Method for recycling positive-negative electrode defective materials of waste lithium waste lithium cobalt oxide lithium-ion batteries

The invention discloses a method for recycling positive-negative electrode defective materials of waste lithium waste lithium cobalt oxide lithium-ion batteries. By combing technologies such as high-speed impact crushing, vibration screening, anaerobic atmospheric roasting, wet-type magnetic separation and temperature-variable filtration, products such as elemental cobalt, lithium carbonate and graphite powder are prepared from the positive-negative electrode defective materials of waste lithium waste lithium cobalt oxide lithium-ion batteries; the materials are separated and enriched in such manners as high-speed impact crushing, vibration screening and wet-type magnetic separation, the original physical properties of the materials are retained, the negative electrode graphite material is fully utilized, the in-situ preparation of resources is achieved and the cost is saved; the anaerobic atmospheric roasting is adopted, the reaction conditions are relatively loose, the graphite material loss is decreased, the flow is simplified, any chemical agent is not needed in the entire process, no secondary pollution is caused and the industrial application practice is facilitated. By the method, the problem of pollution-free treatment of leftover material generated in the manufacturing of the lithium-ion batteries for battery manufacturers is solved and meanwhile, a method for mining secondary mineral, namely, a cobalt resource is provided.
Owner:SHANGHAI JIAO TONG UNIV

Preparation method for electrostatic spinning nano-fiber adopting porous structure

The invention provides a preparation method for electrostatic spinning nano-fiber adopting a porous structure and belongs to the technical field of nano-fiber preparation. The method comprises the following steps: firstly, a polymer is dissolved in an organic solvent, then inorganic nanoparticles are added, and ultrasonic dispersion is performed, so that an electrostatic spinning solution is obtained; secondly, the electrostatic spinning solution is adopted for spinning on an electrostatic spinning device, so that composite nano-fiber of the nanoparticles and the polymer is obtained; finally, the composite nano-fiber of the nanoparticles and the polymer is soaked in a pore-forming liquid for removing the nanoparticles, and then drying is performed, so that the electrostatic spinning nano-fiber adopting the porous structure is obtained. Compared with the common electrostatic spinning fiber, the obtained porous nano-fiber has a larger specific surface area and active site, so that the load and adsorption capacity of the porous nano-fiber is improved, and the porous nano-fiber has high potential for use in technologies of material separation and concentration, catalyst carrier, medical biomaterials, ionic adsorption, wastewater treatment and the like.
Owner:YANGZHOU UNIV

Feeding device on pipe-winding machine

The invention discloses a loading device on a pipe bending machine which can reduce the labor intensity and improve the work efficiency. The loading device comprises a material seat, a material groove, a material separation cylinder, a blanking cylinder, a piston rod, a material separation board, a blanking board, a material box, a material guiding passage, a material pushing groove and a material pushing board. The material seat is arranged on the pipe bending machine; the material groove is formed on the upper part of the material seat; the material separation cylinder and the blanking cylinder are arranged on the side wall of one side of the material groove; the material separation cylinder is positioned above the blanking cylinder; the material separation board is arranged on the piston rod of the material separation cylinder; the blanking board is arranged on the piston rod of the blanking cylinder; the material separation board and the blanking board are moveably arranged on the side wall of the side of the material groove; the material box is arranged on one side of the material seat; the tilting material guiding passage is arranged at the top of the material box, and the outlet of the material guiding passage is positioned above the material groove; the material pushing groove is formed at the lower end of the tilting bottom of the material box; and the material pushing board is moveably arranged in the material pushing groove and fixed on the piston rod of a material pushing cylinder positioned below the material box. A pipe bending machine provided with the invention is particularly suitable for the bending pipe of short material.
Owner:JIANGSU HEFENG MECHANICAL MAKING

Small-particle ore X fluorescence dressing machine based on belt transmission

The invention provides a small-particle ore X fluorescence dressing machine based on belt transmission. The small-particle ore X fluorescence dressing machine comprises a feeding bin, a vibration feeder, a feeding chute, a scanning transport belt, X ray sources, X ray source protective covers, X fluorescence receivers, a signal processing device, an industrial personal computer, a displayer, an air separation device, a separation transport belt, a separation feeding protection device, an air storage tank and a rack. The vibration feeder is used for feeding materials in the feeding bin onto the scanning transport belt. The X ray sources and the X fluorescence receivers are arranged above the scanning transport belt, and the air separation device is arranged at the tail end of the scanning transport belt, so that the materials fall on the material separation transport belt along a path of free throwing and a path away from free throwing. According to the small-particle ore X fluorescence dressing machine based on belt transmission, the dressing treatment lower limit can reach 10 mm; the dressing precision is high; the treatment capacity can reach 40 t/h; the adaptability is high; dressing is rapid and accurate; and the small-particle ore X fluorescence dressing machine is clean and environment-friendly dressing equipment.
Owner:INNER MONGOLIA UNIV OF SCI & TECH

Integrated device for suspension flash preparation of high activity light calcined magnesia

The invention discloses an integrated device for suspension flash preparation of high activity light calcined magnesia. The integrated device comprises a feeding machine, a Venturi mixer, a material multistage cyclone preheater, a suspension roaster, a gas material separation device and a material multistage cyclone cooler. The magnesite ore powder is fed into the Venturi mixer through the feeding machine, then enters the material multistage cyclone preheater and is subjected to step-by-step preheating, the final level of the preheated material is fed into the suspension roaster, is subjected to flash decomposition, is fed into the gas material separation device and is subjected to gas-material separation, the separated material is fed into the material multistage cyclone cooler and is subjected to step-by-step cooling, the final level of the cooled material is discharged, wherein an air flowing direction is opposite to that of the material, and the cooled waste gas from the material multistage cyclone preheater enters an exhaust-gas treatment device, is treated and then is discharged. The integrated device has a high integrated level, utilizes combination of flash roasting, gas material separation, waste heat utilization and exhaust-gas treatment, reduces labor intensity, improves a work environment and has high production efficiency.
Owner:UNIV OF SCI & TECH LIAONING +3

Electrolytic aluminum anode waste separating and recovering method

An electrolytic aluminum anode waste separating and recovering method relates to the field of waste recovery and utilization. The method comprises the following steps: a, screening and classification are performed on waste materials; b, materials of which F is greater than F1 are divided into carbon objects and amorphous carbon objects through manual separation, and the separation of a color sorting machine or an optical separator; c, magnetic objects and nonmagnetic objects are separated during material conveying; d, carbon is extracted through respective electric separation equipment from the material of which the F is less than or equal to F3 and is less than or equal to F2 after screening and classifying; e, a material of which the F is less than the F3, and other amorphous carbon materials separated out from other links can be separated into carbon and amorphous carbon materials through crushing and flotation; f, the amorphous carbon materials in e is added with fluorine and chlorhydric acid for reaction so as to obtain cryolite; and g, purer cryolite is obtained after separation, water scrubbing, dewatering and drying. The invention has the benefits as follows: various material separation and purification from waste can be accomplished by using a series of processes such as optical separation, color selection, manual separation, magnetic separation, electric separation, floatation, chemical reaction and the like, so as to meet the requirements of industrial application. The separation cost during the entire process is low, the demand for labor force is low, and industrial automation continuous production is achieved.
Owner:巨锋

Municipal solid waste compressive classification treatment method

The invention provides a municipal solid waste compressive classification treatment method. The method comprises the following steps of: crushing: carrying out crushing treatment on the high humidity mixed waste; magnetic separation: sorting the matters which can be magnetically adsorbed through magnetic adsorption; water flotation: transporting the residues after magnetic selection treatment into a flotation tank, and with matching of stirring, dividing the materials into two layers, wherein the upper plastic wood materials are blown out from an upper discharge hole; and the bottom deposited materials are discharged from the bottom; and organic matter and landfill material separation: feeding the matters discharged from the bottom of the flotation tank into a high-speed wet type stirrer to undergo beating treatment so that the materials are divided into two layers, wherein the upper materials are slurry which mainly comprises degradable organic matters and is output by a slurry pump to be used for producing biogas; and the bottom materials are discharged via a gate valve to undergo landfill treatment. The method has the following beneficial effects that: firstly the municipal solid waste undergoes mechanical crushing and then the matters which can be magnetically adsorbed, the plastic wood raw materials, the organic matters which can be used for producing biogas and the landfill materials are separated from the municipal solid waste in sequence, thus effectively utilizing the useful components.
Owner:SHENZHEN ICOSTAR INVESTMENT

Heat-exchanger copper aluminum separation device

The invention discloses a copper-aluminum separation device for a heat exchanger, which is used for separating copper-aluminum materials in the heat exchanger of an air-conditioner. The copper-aluminum separation device comprises a rectangular work table, a cutting tool row and a harrowing and cutting system which are arranged in the middle of the work table, and a workpiece clamping device and a workpiece transmitter which are arranged on one end of the work table, wherein the harrowing and cutting system comprises a cantilever beam and a strut, a cutting tool and a harrow which are perpendicularly arranged on one end of the work table; the cantilever beam is arranged on one end of the strut and parallel to the work plane of the work table; the cutting tool is fixed in an end head position of the cantilever beam; and the harrow is provided with a harrow head which takes the shape of a harrow and perpendicularly arranged on the cantilever beam. The workpiece clamping device clamps workpieces; a transmission control device drives the clamped workpieces to move towards the direction of the cutting tool row; and the harrow harrows an aluminum sheet, and the cutting tool cuts off a copper tube, so that copper materials and aluminum materials of the heat exchanger of the air-conditioner are separated and good separation effect can be obtained.
Owner:HAIER GRP CORP +1

High-throughput polyamide nanofiltration composite membrane and preparation method thereof

The invention discloses a high-throughput polyamide nanofiltration composite membrane and a preparation method thereof, which belong to the field of polymeric membrane materials. The composite membrane is prepared by the interfacial polymerization reaction between 5-(N-sulfonamido)isophthaloyl dichloride or a mixture of 5-(N-sulfonamido)isophthaloyl dichloride and 1,3,5-trimesoyl chloride and piperazine monomer, and can be widely used in a water softening process for removing bivalent cations such as Ca<2+> and Mg<2+>. The high-throughput polyamide nanofiltration composite membrane is structurally provided with an ultrathin (10nm) release layer, surface charge are low in electronegativity, the membrane surface property is smooth and hydrophilic, high throughput is shown in terms of properties, the high-throughput polyamide nanofiltration composite membrane has an excellent trapping effect on bivalent and polyvalent cations and good pollution resistance, and the high-throughput polyamide nanofiltration composite membrane can be widely applied in high-throughput domestic water purifiers, sea water desalination, brackish water pretreatment, removal of COD (chemical oxygen demand) suchas dye molecules and phenol molecules in wastewater, separation of dye/salt and material separation and concentration processes in pharmaceutical and food industries.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products