62results about How to "Oxidation will not" patented technology

The invention provides an automatic temperature control platinum wire electronic cigarette, which is characterized by comprising an atomization wire, a sampling circuit, a singlechip microcomputer and a power adjustment circuit, wherein a resistance value of the atomization wire varies positively along with a temperature value, the atomization wire is a platinum wire, the sampling circuit is connected with the atomization wire in series, the singlechip microcomputer is connected with the output end of the sampling circuit and capable of processing analog signals outputted by the sampling circuit, the power adjustment circuit is connected with the singlechip microcomputer and controlled by the singlechip microcomputer, and the output end of the power adjustment circuit is connected with the sampling circuit. According to the invention, the platinum-wire atomization wire with a high oxidation resistance and a high temperature coefficient of resistance is adopted, a real-time current value at both ends of the atomization wire can be acquired more accurately when the temperature of the atomization wire changes in the long-time using process, the real-time current value is converted into a real-time temperature value through conversion, acquisition, amplification and processing, the singlechip microcomputer controls and adjusts the power loaded on the atomization wire through a result of comparing the real-time temperature value and a preset temperature value, thus the temperature of the atomization wire is adjusted, and heat preservation is carried out after the preset temperature is reached. The automatic temperature control platinum wire electronic cigarette has function of automatic detection, temperature control and constant temperature.

The invention discloses a flow rotating combined device for micro-arc oxidation. The device comprises a circulating pump, a sleeve, a micro-arc electric discharge unit, a piston clamping unit and a flow rotating unit, wherein the circulating pump is used for conveying an electrolyte, the sleeve is communicated with the circulating pump and used for storing a piston and the electrolyte, the micro-arc electric discharge unit is arranged above the sleeve and communicated with the piston, the piston clamping unit is arranged above the flow rotating unit through a support rod, a liquid spraying port of the flow rotating unit faces a circular groove of the piston clamped on the piston clamping unit directly, and the circular groove is provided with a retaining ring on the upper side and a seal ring on the lower side. An oxidation film layer of the piston is evener by aid of the flow rotating combined device.

The invention provides an emulsion type acrylic ester adhesive for an anti-yellowing polishing membrane and a preparation method thereof, and relates to the field of acrylic ester pressure sensitive tapes. The emulsion type acrylic ester pressure sensitive adhesive for the anti-yellowing polishing membrane provided by the invention is formed by mixing 97-99% of a component (A) and 1-3% of a component (B) in percentage by weight, wherein the component (A) is emulsion with polyacrylic ester as the main component, and the component (B) is strong reducing agent aqueous liquid. The emulsion type acrylic ester pressure sensitive adhesive prepared is coated on the surface of a carrier to form an adhesive coating, the thickness of which is 12-25 microns. The pressure sensitive tape with the thickness of 4-10 microns is prepared by drying at the reaction temperature of 80-120 DEG C. The polishing membrane prepared by the emulsion type adhesive is good in performances, simple in preparation process, free from pollution, low in cost and suitable for large-scale industrial production.

The invention provides a copper-based bonding wire and a preparation method thereof. The bonding wire is made of a copper wire and a composite material of which the surface is gilded, wherein the weight percent of gold in the bonding wire is 2 to 10 percent, and the purity of the gold is higher than 99.99 percent. The preparation method of the bonding wire mainly comprises the steps of melting, drawing, cleaning, gilding, annealing, winding, packaging and the like. The copper-based bonding wire has the advantages of high oxidation resistance, high electrical conductivity, low radian, low hardness and low price, and the copper wire is packaged by using a common material and can be stored for a long time at normal temperature and normal pressure, so that the copper-based wire can meet the development requirement for low cost, high performance and multiple functions and the like of electronic packaging.

The invention provides a preparation method of an industrial waste gas purification catalyst. The preparation method can improve the sintering resistance and catalytic activity of the catalyst and comprises steps as follows: 1) one or more of aluminum isopropoxide, an alkaline-earth metal precursor, a rare-earth metal precursor and a transition metal precursor are dissolved in a solvent; 2) activated alumina, silicon nitride and a dispersant are added and mixed, and suspension slurry is formed; 3) a catalytic coating is formed by coating a catalyst carrier with the suspension slurry and dried; 4) the catalytic coating is placed in a flowing reductive atmosphere for roasting; 5) the catalyst coating is immersed in a precious metal solution for impregnation, dried and roasted at the roasting temperature of 400-700 DEG C, and a final product is formed.

The invention provides a preparation method of amino-substituted hydrocarbyl sulfonic acid, which is characterized by comprising the following steps of: carrying out substitution reaction by taking esters of amino-substituted hydrocarbyl alcohol as raw materials and sulphite as a nucleophilic substitution reagent at high temperature and high pressure, concentrating and separating for desalination after reaction so that a coarse product of the amino-substituted hydrocarbyl sulfonic acid is obtained, and then purifying and crystallizing the coarse product so that the finished product of the amino-substituted hydrocarbyl sulfonic acid is obtained. The preparation method of the amino-substituted hydrocarbyl sulfonic acid is used for carrying out the substitution reaction at high temperature and high pressure by using the esters of the amino-substituted hydrocarbyl alcohol as raw materials and the sulphite as the nucleophilic substitution reagent so as to have the advantages of short reaction time and energy saving; the preparation method also has the advantage of less side reaction, simple postprocessing operation, high yield and favorable quality of the finished product; and the preparation method has no generation of SO2 gas in the production process so as to greatly improve the production environment and have safety.

The invention provides a voltage sensitive material, which is prepared by compounding the raw materials comprising the following components in volume percent: 30-70% of organic high polymer; 2-20% of conducting particles and 10-50% of semiconductor particles. The voltage sensitive material can be applied in preparing voltage-sensitive elements.

The invention belongs to the technical field of production of a high melting point rare metal and a high melting point scattered metal, in particular to a device for reducing metal rhenium and molybdenum through radiation dissociation of a rhenium and molybdenum gas electrode. The device comprises a rhenium and molybdenum gas smoke-eliminating and dust-removing system, a molybdenum gas smoke-eliminating and dust-removing system, a metal rhenium producing machine, a first metal molybdenum producing machine and a second metal molybdenum producing machine which are arranged at five different altitudes, and a room-temperature desulfurizing, denitrating and decarbonizing device, a direct current power supply and electrical appliance interlocker and an induced draft fan. In the running process, each container and a gas conveying pipeline system maintain a constant negative pressure intensity, and leakage and emission of heavy metal rhenium oxide gas, heavy metal molybdenum oxide gas and sulfur dioxide gas are avoided; the device overcomes the defect that the recycling rate of leaching metal rhenium powder from baking fume is low, directly produces metal rhenium Re(s) and metal molybdenum Mo(s) from sublimated and volatilized rhenium and molybdenum gas through identifying soft X rays, and completely recycles sulfur in molybdenite, thereby greatly reducing pollution of the sulfur dioxide to the environment.

The invention discloses an anti-oxidation experimental system for preparing nitrogen at room temperature during laser cladding. The anti-oxidation experimental system is composed of a constant-temperature nitrogen making machine and an anti-oxidation experimental box, wherein the constant-temperature nitrogen making machine comprises an air inlet pipe, a nitrogen-oxygen separation tank, an air outlet pipe, a glass box and an air valve switch, wherein the anti-oxidation experimental box comprises an air delivery pipe, a quartz plate, a box body, a hollow metal base and two small bases. According to the anti-oxidation experimental system for preparing nitrogen during room-temperature cladding disclosed by the invention, nitrogen separated from air can be filled into the anti-oxidation experimental box during laser cladding, so as to prevent a base body and a cladding layer from being oxidized; meanwhile, a few of changes of scientific research personnel and instruments in close observation and laser cladding process detection can be avoided, and thus further research of laser cladding is facilitated. The experimental system also has the advantages of being scientific and reasonable in structure design, simple to use, energy-saving, environmental friendly and the like.

The invention provides a pore blocking method for a surface modified layer of a fuel cell polar plate. According to the pore blocking method, a film is plated by using a physical vapor deposition method. The pore blocking method for the surface modified layer is characterized in that after a bipolar plate is plated with the film in a vacuum chamber of film plating equipment, the inner pressure of the vacuum chamber of the film plating equipment reaches 0.1*10<-3>Pa-10.0*10<-3>Pa and the temperature is 100-180 DEG C; an air inlet valve is switched on and air enters; the range of the pressure in the vacuum chamber of the film plating equipment is 1.1*10<-2>Pa-1.1*10<5>Pa; when air is naturally cooled to 20-50 DEG C along the equipment, the vacuum chamber is opened to finish oxidation pore blocking treatment. The pore blocking method has the beneficial effects that temperature and vacuum degree conditions of the equipment after the physical vapor deposition method is used for plating the film are utilized effectively; the modified layer is subjected to pore blocking in a natural cooling process of the equipment and the production efficiency is improved obviously; new equipment and materials do not need to be added, no energy source is consumed and the processing cost is low; the pore blocking method is only used for oxidizing a micro-pore; the corrosion resistance of the bipolar plate is improved under the precondition of guaranteeing that the electrical conductivity is not changed so that the service life is prolonged.

The invention relates to a novel acrylic ester glue, which comprises the following components: isooctyl acrylate, isobutyl acrylate, isomethyl acrylate, hydroxyethyl ester, glyceride, acrylic acid, ethyl acetate, toluene, methanol, benzoyl peroxide, and peroxide Al13N. The peroxide Al13N added in the components can protect acrylic ester glue from being oxidized by oxygen in the air during use, improves the glue stability, thermal conductivity, abrasion resistance, high temperature resistance, anticorrosion performance and other comprehensive performance, and ensures the high quality of the glue. In the preparation process, ethyl acetate is added in three times successively at different amounts, 50wt% of the raw materials are put into a reaction kettle as the kettle bottom material, and the rest 50% are added dropwise after intense reaction, the dripping time is controlled within 1h, the whole reaction lasts 3h, the reaction time is greatly shortened, the production efficiency is improved, and the preparation process is simple, therefore the method is suitable for large-scale industrialized production.

The invention discloses a cable material with high expansion force, and is characterized in that the cable material comprises the following raw materials in parts by weight: 100 parts of polyvinyl chloride resin, 40-50 parts of PVC resin, 15-20 parts of PBT resin, 15-18 parts of dibutyl phthalate, 10-12 parts of benzoyl peroxide, 7-10 parts of dipentaerythritol hexaacrylate, 2-4 parts of a silane coupling agent, 0.6-0.8 part of an antibacterial agent, 10-15 parts of straw ash, 3-5 parts of graphite, 3-5 parts of an anti-aging agent, 16-18 parts of a filling material, and 4-6 parts of silicone rubber. The cable material extends the aging resistance of the cable material, the filling material has the advantages of stable chemical structure, good gelation ability and high expansion ability, prolongs the service life of a cable, and saves the resources; a copper body is protected from avoiding oxidation, the copper body cannot be damaged, the service life is extended, the cost is saved, and the efficacy is improved; the addition of the straw ash, the requirements of the standards on environmental protection are met; and the extrusion process performance is excellent.

The invention relates to the technical field of chemical synthesis, in particular to a preparation method of an oxaliplatin impurity C. The preparation method comprises the following steps of oxidation, preparation of crude products and recrystallization. Other impurities are not introduced, and the subsequent separation and purification work is not needed; over oxidation does not exist, and the yield and the purity are obviously improved; and the oxaliplatin impurity C is easy to prepare, the reaction steps are few, the preparation cost is low, the yield is high and the preparation method issimple.

The invention relates to a method for preparing a lithium-enriched lithium manganese oxide solid solution cathode material. The method comprises the following steps of: adding a mixed aqueous solution of nickel salt, cobalt salt and manganese salt into an oxalic acid or oxalate aqueous solution by an oxalate coprecipitation high-temperature solid state method, and stirring and reacting to generate nickel, cobalt and manganese oxalate coprecipitation; performing solid and liquid separation, washing and drying to obtain a nickel, cobalt and manganese oxalate precursor; and mixing and grinding the precursor and lithium salt, drying, baking at high temperature in an air atmosphere, and thus obtaining the lithium-enriched lithium manganese oxide solid solution cathode material. During preparation of the precursor, the proportion of the nickel salt, the cobalt salt and the manganese salt is adjusted, so that the constituents of the lithium-enriched lithium manganese oxide solid solution cathode material can be adjusted flexibly. The preparation method is suitable for large-scale, economic, stable and reliable production of the lithium-enriched lithium manganese oxide solid solution cathode material, has obvious advantages, and is high in practical value.

The invention provides a magnesium metal smashing and grading device and the technique thereof and belongs to the technical field of material smashing. The magnesium metal smashing and grading device comprises a feeding device, a crushing device, an inert gas circulation loop, a primary gas-solid separating device, a wind power driving device, a secondary gas-solid separating device and a dust collector, wherein the feeding device is provided with a material inlet and an inert gas inlet, the dust collector is provide with an inert gas outlet, the inert gas circulation loop sends inert gas separated out from the dust collector into the crushing device through an air-returning pipe, inert gas can be reused, and explosion venting openings are respectively formed in the upper parts of the primary gas-solid separating device, the secondary gas-solid separating device and the dust collector. The magnesium metal smashing and grading device provided by the invention has a novel structure, is reasonable in design, is safe and reliable, and is simple to operate, can achieve crushing, grading and cooling to inflammable, explosive and easily oxidized materials, integrates various functions, and is strong in practicability.

The invention relates to a flux, in particular to a soldering flux and a preparation method thereof. In the soldering production process of electronic products, a flux containing halide is generally used; and after soldering, more residues are generated, and the residues contain halide ions to gradually cause such problems as reduction of electric insulation performance and short circuit. In order to realize the purpose of the invention, the invention provides the soldering flux; and the soldering flux comprises the following components in percentage by weight: 25-35% of rosin, 55-70% of ethanol, 2-6% of triethanolamine, and 1-3% of aniline. In addition, the invention further provides the preparation method of the soldering flux; and the flux prepared according to the formula and the method contains no halide ions, cannot gradually cause such problems as reduction of electric insulation performance and short circuit, has no need to clean the flux residues on an electronic printed board, is simple in components and preparation process, and is excellent in fluxing effect.

The invention discloses a freshly squeezed fruit juice vending machine, which comprises a fruit conveying mechanism, a lifting mechanism, a juicing mechanism, a filtering mechanism, a cup dischargingmechanism and a sealing mechanism. Sequential arrangement of the multiple mechanisms is realized, fruit can be conveyed to the lifting mechanism through the fruit conveying mechanism and driven by thelifting mechanism to ascend, so that the fruit is conveyed to the juicing mechanism to be juiced, then residues are filtered out through the filtering mechanism; fruit juice is conveyed to the cup discharging mechanism to be filled into cups and then conveyed to the sealing mechanism to be sealed, and the operation of freshly squeezing the fruit juice is automatically completed.

The invention provides a regeneration method of an deactivated hydrogenation catalyst. The regeneration method comprises the following steps: carrying out charking treatment on the inactivated hydrogenation catalyst; dipping the charked deactivated hydrogenation catalyst in a solution containing a hydroxyl and / or carboxyl chelated ligand compound; and carrying out microwave vacuum drying on the catalyst subjected to dipping treatment so that the deactivated hydrogenation catalyst then recovers the activity. According to the technical scheme, microwave vacuum drying is adopted, due to the factthat operation is carried out under the condition of air isolation, oxygenolysis cannot occur in the drying process even if the decomposition temperature of an organic additive is high, and the utilization rate of the organic additive is remarkably increased.

The invention provides an automatic temperature control platinum wire electronic cigarette, which is characterized by comprising an atomization wire, a sampling circuit, a singlechip microcomputer and a power adjustment circuit, wherein a resistance value of the atomization wire varies positively along with a temperature value, the atomization wire is a platinum wire, the sampling circuit is connected with the atomization wire in series, the singlechip microcomputer is connected with the output end of the sampling circuit and capable of processing analog signals outputted by the sampling circuit, the power adjustment circuit is connected with the singlechip microcomputer and controlled by the singlechip microcomputer, and the output end of the power adjustment circuit is connected with the sampling circuit. According to the invention, the platinum-wire atomization wire with a high oxidation resistance and a high temperature coefficient of resistance is adopted, a real-time current value at both ends of the atomization wire can be acquired more accurately when the temperature of the atomization wire changes in the long-time using process, the real-time current value is converted into a real-time temperature value through conversion, acquisition, amplification and processing, the singlechip microcomputer controls and adjusts the power loaded on the atomization wire through a result of comparing the real-time temperature value and a preset temperature value, thus the temperature of the atomization wire is adjusted, and heat preservation is carried out after the preset temperature is reached. The automatic temperature control platinum wire electronic cigarette has function of automatic detection, temperature control and constant temperature.

The invention discloses an automatic detection waterproof air tightness and inflation protection method of an outdoor lamp. The automatic detection waterproof air tightness and inflation protection method of the outdoor lamp comprises the following steps that an air nozzle of an air extraction inflation mechanism and an air vent of the lamp are sealed; the lamp is filled with air and subjected toleakage detecting, the lamp is filled with the air through a compressor, and an air pressure difference value in the lamp is detected so as to judge the waterproof air tightness of the lamp; the lampis vacuumized and subjected to leakage detecting, and the lamp is vacuumized by the compressor to detect the air pressure difference value in the lamp so as to judge the waterproof air tightness of the lamp; the vacuumized lamp is filled with nitrogen; the nitrogen in a nitrogen tank is decompressed by a buffer gas tank first and then pressurized by the compressor, and the lamp with qualified waterproof air tightness is filled with nitrogen; and a vent hole is sealed with a waterproof joint. According to the automatic detection waterproof air tightness and inflation protection method of the outdoor lamp, the waterproof air tightness and inflation protection of the lamp are continuously carried out, the time consumption is short, the waterproof air tightness is detected under the positive pressure state and the negative pressure state of the lamp, the waterproof air tightness is quickly and effectively detected, and the detection accuracy is high; and the anti-oxidation of the lamp is good, and the service life of the lamp is prolonged.

The invention discloses a method for drawing in limestone in a vortex manner to remove carbon in copper-containing molten iron and belongs to the technical field of metallurgy. The method includes the specific steps that firstly, the copper-containing molten iron obtained by adding a carbonaceous reducing agent into copper slag for reduction is led into an induction furnace, and it is guaranteed that the temperature of the copper-containing molten iron is higher than or equal to 1450 DEG C; secondly, center stirring is performed on the copper-containing molten iron, and vortexes with the height-diameter ratio ranging from 0.5 to 2.5 are formed; thirdly, limestone powder is sprayed into the centers of the vortexes, center stirring continues, eccentric stirring is performed after the limestone powder is sprayed in, and generated CO2 is made to be more fully mixed with the vortexes; fourthly, the limestone powder is directly drawn in the molten iron by the vortexes to fully react with the molten iron, and decarbonized copper-containing molten iron and molten slag are obtained; and fifthly, the decarbonized copper-containing molten iron and the molten slag are discharged in a layered manner. The method is simple in process, small in investment, capable of saving energy and protecting the environment and low in cost, has high economic value, and not only can the decarbonization purpose be achieved, but also the copper element in the copper-containing molten iron can be protected against burning losses.

The invention discloses a glass structure, which includes a glass body layer (1), a transition layer (2), a functional film layer (3) and an antioxidation layer (4) that are disposed from the inner layer to the outer layer in order. The glass body layer (1), the transition layer (2), the functional film layer (3) and the antioxidation layer (4) are in close contact. The glass structure can prevent glass from being oxidized, and realizes antioxidation treatment.

The invention discloses an anti-oxidation device for enameled wire production equipment, which relates to the technical field of enameled wire production. The anti-oxidation device comprises an annealing furnace and an annealing pipeline penetrating through the annealing furnace, and a water tank is arranged at the copper wire outlet end of the annealing pipeline. The anti-oxidation device is characterized in that two iron plates are embedded in the annealing furnace, one iron plate is connected to the anode of a power supply, the other iron plate is connected to the cathode of the power supply, and the iron plate which is connected to the anode of the power supply is close to the annealing pipeline. The objective of the invention is to put a copper wire into an environment which is constantly filled up with positive charges, so that substances capable of easily oxidizing the copper wire in the outside environment can directly react with the positive charges wrapping the periphery of the copper wire.

The invention relates to a method for making a permanent glass slide specimen of bryophyte. Gum Arabic, double distilled water, glycerin and chloral hydrate are mixed with stirring at normal temperature, and a liquid mounting medium is prepared; moss leaves or plants are placed in the double distilled water, after infiltration, the moss leaves or plants are placed in the center of a slide glass with a droplet of double distilled water, and the moss leaves or plants are observed under a 10x microscope for adjusting shapes; a piece of filter paper is used for absorbing double distilled water which is 1 millimeter or more far away from the specimen, till the circumference of the moss specimen is moistened without excessive double distilled water; a glass rod is used for dipping 1-2 droplets of the mounting medium, and the droplets are dropped on the moss specimen, a piece of cover glass is covered without bubbles contained, the specimen is placed at normal temperature till the mounting medium is dried and can fix the specimen without movement, a label is plastered on the slide glass, and the permanent glass slide specimen of bryophyte is prepared. Compared with prior art, the produced specimen has the advantages of good transparency, simple method, long preservation time limit, and good preservation effect of original state of the specimen.

The invention relates to a high-temperature sealing discharging device and method. The high-temperature sealing discharging device comprises a first chute, a second chute and a plate turnover device,working equipment communicates with or is disconnected with the upper end of the first chute through a first electric high-temperature sealed gate, and the lower end of the first chute communicates with or is disconnected with the second chute through a second electric high-temperature sealed gate. The plate turnover device is arranged at the lower end of the second chute, and the plate turnover device opens and closes a lower end opening of the second chute. A first nitrogen interface solenoid valve and a second nitrogen interface solenoid valve are separately arranged on the first chute andthe second chute, and nitrogen is fed through opening and closing of the first nitrogen interface solenoid valve and the second nitrogen interface solenoid valve. The high-temperature sealing discharging device can perform emergency discharging on high-temperature inflammable and explosive bulk materials.

The invention provides a composite soldering strip. The composite soldering strip comprises a substrate and an interconnected paste layer covering the surface of the substrate, and the interconnected paste layer is formed by combination of silver powder, bonding phase, and solvent. According to the composite soldering strip, compared with the prior art, the composite soldering strip and a cell can be directly welded so that the usage of silver paste on the cell is cancelled, and the cost of the cell is reduced; the usage of a tin-lead solder is replaced by the interconnected paste so that the harm to the environment is reduced; and by employing the interconnected paste, the welding temperature can be effectively reduced, bending deformation and fragmentation of the cells brought by thermal stress are reduced, and the quality stability of a photovoltaic module is improved.

The invention relates to an antioxidation coating for a high temperature billet. The antioxidation coating comprises an aggregate and a glass washing liquid of which mass is 35 to 60% of mass of the aggregate, wherein the aggregate comprises magnesia brick powder, fused magnesite, quartz sand and high-aluminum powder. The aggregate in the antioxidation coating has ideal high-temperature resistance and water resistance, and does not cause expansion between raw material molecules at a high temperature. The glass washing liquid has excellent adhesion. Therefore, the antioxidation coating does not powder, crack and fall off, is suitable for surface coating of various types of billets and prevents billet oxidation.

The invention discloses a manufacturing method of UV-LED nail polish glue. The UV-LED nail polish glue comprises bottom oil and surface oil, wherein the bottom oil comprises the following production steps of (1) weighing aliphatic series polyurethane acrylic oligomers, adding the weighed aliphatic series polyurethane acrylic oligomers to a reaction container, then ventilating nitrogen protection gas, simultaneously adding air drying type thermoplastic acrylic resins in proportion, then performing stirring at a high rotational speed which is controlled to be 250-350r / min; (2) then adding the air drying type thermoplastic acrylic resins, performing heating to 45-60 DEG C, performing stirring at the rotational speed of 500-600r / min for 15-25min, besides, adding gas phase silicon dioxide to areaction container in proportion, and performing continuous stirring for 35-45min; (3) adding hydroxyethyl methylacrylate to the reaction container in proportion, performing stirring at the rotationalspeed of 200-260r / min, then adding 1-hydroxyl-cyclohexyl-benzophenone, performing stirring, finally adding an antifoaming agent and a pigment A, and performing quick stirring at the rotational speedof 800-1000r / min for 20-25min; and (4) performing low-speed stirring at 50-80r / min for 5-8 hours to obtain bottom oil finished products.

The invention discloses a method for flotation separation of chalcopyrite and pyrite through H2O2, and belongs to the technical field of mineral processing. The method for flotation separation of the chalcopyrite and the pyrite comprises the steps of S1, mixing the chalcopyrite, the pyrite and simulated seawater to obtain ore pulp, wherein the particle sizes of the chalcopyrite and the pyrite are less than 150 microns; and S2, regulating the pH value of the ore pulp to 7.5-9.0, then adding H2O2, then adding a collecting agent, and then conducting air inflation flotation, wherein the flotation foam is chalcopyrite. According to the method, the grade and the recovery rate of the chalcopyrite are improved, the highest yield of the concentrate is 55.01%, the highest grade of copper in the concentrate is 26.06%, and the highest recovery rate of the chalcopyrite is 90.05%.