60results about How to "Promote separation" patented technology

The invention discloses a preparation method of an efficient three-dimensional layered dimetallic hydroxides/graphene composite photocatalyst and a photocatalyst thereof. The preparation method comprises the following steps: uniformly dispersing graphite oxide in a solvent; dropwise adding the mixed salt solution of nickel, aluminum and iron, and stirring; adding urea and stirring for reacting. According to the preparation method disclosed by the invention, graphene is adopted as a carrier of LDH nanosheet, and a layered dimetallic hydroxides/graphene composite photocatalyst with a three-dimensional structure is formed. Through loading of graphene, agglomeration of LDH nanosheets is inhibited, and separation of photo-induced electron-hole pairs in LDH is promoted so that the photocatalystis better applied to the photocatalytic degradation of antibiotics. The three-dimensional NiAl0.85Fe0.15LDH/RG025 composite photocatalyst prepared by the invention degrades ciprofloxacin under visiblelight so as to test the photocatalytic activity, and the result shows that the degradation rate of ciprofloxacin within 120 minutes reaches 93% or more.

The invention discloses a construction method of a photoelectric chemical sensor for detection of reduced glutathione. The construction method is characterized by comprising the following steps: (1) a nano-zinc oxide photo-anode is prepared with ITO conductive glass as a working electrode, silver/silver chloride as a reference electrode and a platinum wire as a counter electrode; and (2) a cuprous oxide/zinc oxide heterojunction-based photo-anode. Through construction of the cuprous oxide/zinc oxide heterojunction-based photo-anode, the generated photoelectric current is raised by 77.3% than a photoelectric current generated from a zinc oxide photo-anode, which shows that the construction method can promote separation of carrier pairs effectively, and therefore the detection sensitivity is raised.

A sample collection tool comprises a collection end configured for collecting a sample. Optionally, the sample is collected from within a body cavity of an animal without causing significant discomfort or injury to the animal. A first handle portion has a first end connected to the collection end and a second end. A second handle portion is connected to the second end of the first handle portion by a breakable connection. The second end of the first handle portion has at least one winglet. The at least one winglet is compliant in a preferential direction. The breakable connection is ruptured at least in part when the at least one winglet is forced in the preferential direction.

The present invention relates to a method for separating a material that has affinity to an antibody by using a protein-antibody conjugate with modified partition characteristics, more precisely a method for affinity separation to separate a material specifically binds to an antibody, in which an antibody is conjugated to a protein to modify partition characteristics of the protein-antibody conjugate. The method of the present invention can be effectively and widely used as a safe and efficient separation method for biomolecules since it takes advantages of safe aqueous two-phase extraction system and high selective molecular specific conjugation.

Disclosed is a high gradient magnetic separation apparatus for recovering magnetic ally labeled target entities from viscous and/or complex test media. The target entities are captured on a ferromagnetic element in which a magnetic field gradient is induced by a magnetic field source. The apparatus is designed to perform various operations on captured target entities. Methods of using the apparatus are also disclosed, e.g., for isolation of circulating tumor cells.

The invention discloses a beneficiation method for copper-lead sulphide ore, and belongs to the technical field of beneficiation. The method comprises raw ore grinding, copper-lead mixing flotation and copper-lead separation. Copper-lead mixing flotation comprises primary copper-lead roughing, tertiary copper-lead fine selecting and secondary copper-lead scavenging. Copper-lead separation comprises primary copper roughing, tertiary copper fine selecting and secondary copper scavenging. Lime, calcium hypochlorite, zinc sulfate, sodium sulfite, sodium sulphide, dimethyl dicarbonate, sodium pyrophosphate, sodium citrate, ethionine ester, ethyl thio carbamate, sodium n-butylxanthate, aniline aerofloat, diphenyl amino phosphorodithioic acid and sodium carbonate are added in the copper-lead roughing and copper-lead scavenging processes. Lime, water glass, sodium phosphate starch, carboxymethyl starch, phthalic acid, thiosalicylic acid, ethionine ester and sodium ethylxanthate are added in the copper roughing and copper scavenging processes. The beneficiation method solves the problem that in the process of beneficiation of the copper-lead sulphide ore through a traditional flotation method, the copper and lead recycling rate is low.

The invention discloses a porphyrin sensitization carbon nitride composite photocatalyst for producing hydrogen peroxide and a preparation method of the photocatalyst. The method comprises the steps that a carbon nitride precursor is calcined in a muffle furnace for obtaining a carbon nitride nano sheet; then, bromobenzaldehyde and pyrrole are dissolved in an organic solvent, and under the catalytic effect of acid, through a reaction, porphyrin is obtained; the carbon nitride nano sheet is dispersed in ethyl alcohol, then a porphyrin solution is added to the mixed solution, and through a reaction at the normal temperature, the porphyrin sensitization carbon nitride composite photocatalyst for producing the hydrogen peroxide is prepared. The preparation method has the advantages of being simple in step, low in cost, high in controllability and the like, and the porphyrin sensitization carbon nitride composite photocatalyst has excellent photocatalysis and hydrogen peroxide production performance.

A filter system for receiving an aqueous-based fluid contaminated with particles and emulsified contaminant oil, removing the particles, and separating the emulsified contaminant oil from the aqueous-based fluid includes a filter media for receiving the aqueous-based fluid and emulsified contaminant oil, having an inner filter element formed from a 95 percent single pass efficiency 48 micron (5 micron nominal) filtering material of needle punch polypropylene felt, an outer filter element formed from a 95 percent single pass efficiency 19 micron absolute filtering material of a polypropylene microfiber material and a porous spunbond polypropylene sandwiching the outer filter media. The filter element removes particles, de-emulsifies the emulsified contaminant oil from the aqueous-based fluid into the contaminant oil and the aqueous-based fluid, separates the de-emulsified contaminant oil from the aqueous-based fluid, coalesces the separated contaminant oil and passes both the coalesced de-emulsified contaminant oil with entrained particles and the aqueous-based fluid. A first tank supports the filter element and is further configured to hold a quantity of the separated coalesced contaminant oil and the aqueous-based fluid. The first tank has a first outlet passing the aqueous-based fluid from the first tank to near the bottom of the second tank and a second outlet passing the separated coalesced contaminant oil to the top of the second tank. The second tank has an oil separation assembly for separating the aqueous-based fluid from the contaminant oil and passing the aqueous-based fluid therefrom. The second container also has a drain valve assembly for removing only the accumulated coalesced de-emulsified contaminant oil. A method for separating the emulsified contaminant oil from the aqueous-based fluid and recovering the aqueous-based fluid is also disclosed.

The present invention generally relates to compositions, methods, and systems for separating carbon-based nanostructures.

The invention discloses an impurity removing device for flour processing. The device comprises a base, wherein a support is fixedly connected to the upper surface of the left side of the base; a fixedrod is fixedly connected to the surface of the upper right side of the support, and a bucket box is fixedly mounted at the right end of the fixed rod; a fixed frame is vertically fixedly connected into the middle of the bucket box; first baffle plates are fixedly mounted at the upper left side and the upper right side of the fixed frame; second baffle plates are fixedly mounted at the lower leftside and the lower right side of the fixed frame; a processing box is arranged at the bottom part of the bucket box; a screening net is fixedly mounted between the inner walls of the left side and theright side of the processing box; and an impurity outlet is formed in the upper part of the right end of the screening net. The device is good in impurity removing effect, and is high in efficient; in addition, an air port is formed in a box body at the left side of the processing box, so that the impurity separating is accelerated, and moreover, the temperature of the processed flour is high andcan be decreased through the air port by ventilating, and the flour can be conveniently stored after being bagged and is prevented from moistening again.

The application discloses a binaural hearing system and a hearing device comprising a beam forming unit, wherein the binaural hearing system comprises first and second hearing devices, each hearing device comprising: first and second input units for providing representations from First and second electrical input signals of first and second sound signals of a binaural hearing system environment; a beamforming unit for generating a beamforming signal from the first and second electrical input signals; for controlling the beamforming unit A control unit, wherein, in a specific dual DIR operating mode targeting a listening situation comprising a first and a second target sound source, the control unit of the first hearing device is configured to focus the beamforming unit of the first hearing device on the second a target sound source, and the control unit of the second hearing device is configured to focus the beamforming unit of the second hearing device on the second target sound source.

The invention provides an overrun clutch achieving rotating speed control drive and driven power reversing. The overrun clutch is formed by combining two sets of pin roller overrun clutch bodies. An inner ring base and an outer ring base of the first set of pin roller overrun clutch body are fixedly combined with an outer ring base and an inner ring base of the second set of pin roller overrun clutch body respectively. In the initial stage, pin rollers of the two sets of pin roller overrun clutch bodies make contact with and separate from the inner walls of the outer ring bases through springs respectively. The clutch works in a low-speed state, a middle-speed state and a high-speed state. At the low speed, a drive mechanism drives a driven mechanism to rotate through the first set of pin roller overrun clutch body. At the middle speed, the speed of the driven mechanism is increased to exceed the speed of the drive mechanism, and the pin roller overrun clutch bodies are in a separation state. At the high speed, the speed of the driven mechanism is higher than that of the drive mechanism, the second set of clutch body works and reversely drags an original drive mechanism, and power reversing is achieved. The clutch can be applied to the aspects such as electric cars and engine turbine supercharging systems, the performance of a car is improved under driving of a motor at the low speed, the motor is reversely dragged for power generation to achieve energy saving at the high speed, and it is guaranteed that the mechanisms run within the appropriate speed range.

The embodiment of the invention discloses a concrete separating device for recycling construction waste. The concrete separating device comprises a separation barrel arranged in a concrete separator,wherein a plurality of separation holes which are arranged at equal intervals are formed in the separation barrel, a cleaning disc used for cleaning the separation holes is arranged above the separation barrel, and a transmission shaft used for driving the separation barrel to move is arranged in the separation barrel; a rotating ring is arranged on the transmission shaft in a sleeving mode, and amoving assembly used for driving the cleaning disc to move is arranged on the rotating ring. The arranged movable assembly drive the cleaning disc to move, so that the purpose of cleaning the separation holes can be achieved while concrete is separated, and the problem that due to the fact that the separation holes are blocked, the concrete separation efficiency is reduced is effectively solved;in the separation process, an external water pump can be connected through the cleaning disc, a cleaning column sprays water on the concrete, so that the purpose of the accelerating separation is realized; and the concrete separating device for recycling the construction waste is more practical.

A method for utilizing recycled asphalt is provided. In exemplary embodiments, the method may comprise: mixing input feed with at least one of an asphalt rejuvenator and virgin liquid asphalt in a pre-coater/mixer; allowing the at least one of the asphalt rejuvenator and the virgin liquid to soften residual asphalt in the input feed and encapsulate any fine particles; discharging the mixture into a spiral section; feeding the mixture into a rotary dryer comprising a counterflow zone and a temperature elevation zone; activating the drying process and directing a heated air stream into the rotary dryer through a rotating chamber; allowing a portion of the heated air to escape through the counterflow zone and into the temperature elevation zone; liberating surface moisture from the mixture along with a portion of the heated air via an outlet; processing the exhaust from the system; and discharging a finished mixture.

The invention discloses an application of thioacetamide in the aspect of promoting extracellular cadmium crystalline particles of white rot fungi to aggregate and grow, in particular an application in the aspect of promoting extracellular cadmium crystalline particles of Coriolus versicolor to aggregate and grow. The specific operation method is as follows: adding mycelium pellets of the white rot fungi into a solution containing cadmium; carrying out absorption reaction under the condition of oscillation at constant temperature to form cadmium nano crystalline particles on the surfaces of the white rot fungi after the reaction; and continuously adding the thioacetamide into the intermediate solution after the absorption reaction, carrying out size regulation reaction under the condition of oscillation at constant temperature, and then completing the aggregation and growth of the extracellular cadmium crystalline particles of the white rot fungi after full reaction. The invention has the advantages of effectively reducing the mobility of cadmium particles and obviously improving the removal capability of cadmium in the solution.

An object of the present invention is to provide a method for analyzing hemoglobins which can accurately separate hemoglobins in a short time by liquid chromatography.

The present invention provides a method for analyzing hemoglobins by liquid chromatography which includes pre-treating a sample with an oxidant and a binder for trivalent heme iron.

The invention discloses an adjustable hydrophilic and hydrophobic catalyst for preparation of polymethoxydimethyl ether as well as a preparation method and application thereof. The catalyst comprisesa hydrophobic carrier and an active component, wherein the active component is a solid acid substance; the hydrophobic carrier accounts for 2 to 98 percent of the weight of the catalyst; and the active component accounts for 2 to 98 percent of the weight of the catalyst. The hydrophobic performance of the catalyst can be adjusted by adjusting the proportion of a hydrophobic agent to the active component. The catalyst prepared by the method can be applied to preparation of the polymethoxydimethyl ether through reaction of methanol and formaldehyde, wherein the methanol can be replaced by dimethyl ether, methylal and polymethoxydimethyl ether with low polymerization degree; the types of the formaldehyde can be a formaldehyde solution with different concentration, paraformaldehyde and trioxymethylene. The catalyst provided by the invention has the effect of adjusting distribution of polymethoxydimethyl ether products, can realize reasonable optimization of the hydrophilic and hydrophobicproperties of the catalyst according to production requirements, can realize reaction optimization and separation optimization and accords with the requirement of green chemical development.

The invention belongs to the technical field of photocatalytic materials, and particularly relates to a silver nanorod and titanium dioxide composite material as well as a preparation method and application thereof. The silver nanorod and titanium dioxide composite material comprises silver nanorods and titanium dioxide particles, wherein the titanium dioxide particles are partially grown in situ on the surfaces of the silver nanorods, and the other part of the titanium dioxide particles is dispersed in gaps between the silver nanorods; the weight ratio of the silver nanorods to the titanium dioxide is (0.0025-1):1. The invention provides the silver nanorod and titanium dioxide composite material which can effectively degrade a gaseous pollutant photocatalytically, and the preparation method and application thereof.

This invention discloses a process for converting gabapentin acid salt to free gabapentin, where the salt is dissolved in an organic solvent in which both gabapentin acid salt and free gabapentin are soluble. The solution is treated with a powdered alkaline base to liberate free gabapentin which will remain in solution. The insoluble alkali salt of the acid is removed by filtration. From the filtrate free gabapentin is obtained either by adding anti-solvent or by extraction with water.

An offline supercritical extraction-supercritical chromatography-mass spectrometry combined detection method for polyphenols is disclosed. The method includes after a food to be detected is mixed witha dewatering agent, bringing the mixture into contact with an extracting liquid to perform supercritical extraction to obtain a liquid to be detected; and detecting the liquid to be detected throughsupercritical chromatography-mass spectrometry so as to qualitatively and quantitatively analyze polyphenols in the food, medicines, and the like. The polyphenols in the food are extracted through supercritical extraction, the method is simple, high in degree of automation, and low in sample amount in need, and oxidation and decomposition of polyphenols can be effectively avoided. In addition, thesupercritical chromatography-mass spectrometry is adopted for detection so that the detection speed is high and sensitivity and accuracy are high.

A lever-releasable first electrical connector body includes a housing that includes a set of electrical connectors and a lever rotatably mounted in the housing for rotation between retracted and extended positions. When the first connector body is engaged with a second electrical connector body to form electrical connections with the set of electrical connectors, the lever is normally in the retracted position. Rotation of the lever to the extended position causes an end of the lever to engage and urge the second electrical connector away from the first electrical connector.

The invention discloses a multifunctional terminal machine, which comprises a box body arranged on the ground, a cover body arranged above the shell, a wire inlet formed in the box body, a material outlet formed in the box body, and a plurality of groups of integrated terminal crimping devices arranged in the box body. The integrated terminal crimping device comprises a lifting plate arranged in the box body, a guide hole formed in the bottom of the box body, a guide column connected to the bottom of the lifting plate, a first elastic piece used for resetting the lifting plate, a fixing structure arranged above the lifting plate, terminal crimping structures arranged on the two sides of the lifting plate, and a peeling assembly arranged below the terminal crimping structures. And the guidecolumns can move back and forth in the guide holes. Through the arrangement of the lifting plate, the peeling process and the terminal crimping process are effectively combined, the working time is greatly shortened, meanwhile, errors existing in the secondary positioning process in the machining process are reduced, the product quality is effectively controlled, the occupied area is small, occupied resources are effectively saved, and the working efficiency is improved through the multi-station working mode.

A system includes a cradle, a tray assembly, a plurality of supports, and a vibrator. The tray assembly removably couples to the cradle. The tray assembly has a plurality of holes and a handle. The handle facilitates separating the tray assembly from the cradle. The plurality of supports extend from the tray assembly at positions on the tray assembly that correspond to positions of the holes in the tray assembly. The supports are sized and dimensioned to hold paper tubes. The vibrator vibrates the tray assembly coupled to the cradle to distribute loose material placed on the tray assembly through the holes in the tray assembly and fill the paper tubes in the supports with the loose material.

The invention discloses a chopping-threshing combined longitudinal axial flow threshing separating device, comprising a chopping device and a longitudinal axial flow threshing separating device; the longitudinal axial flow threshing separating device comprises a threshing cylinder bracket, a longitudinal axial flow threshing cylinder with a cylinder shaft, a concave screen and a conveying auger; the chopping device comprises a chopping cylinder frame, a chopping cylinder fixed on the chopper cylinder frame, a feeding roller assembly mounted on the chopper cylinder frame, and a feeding lower channel of the lower end of the feeding roller assembly; after a rotating shaft is inserted into a rotating shaft connecting rod at the rear end part of the chopping cylinder frame, two ends of the rotating shaft are hinged to the threshing cylinder bracket of the longitudinal axial flow threshing separating device. The chopping device quickly cuts off a material conveyed by a header and throws to the threshing separating device, thus replacing a conveying chain harrow on a traditional combine harvester; the material acted by the chopping device is mostly 100-300 mm in length, and is quickly conveyed, threshed and separated under the action of the longitudinal axial flow threshing separating device.

The invention discloses an oily water purification device based on a filtering tank technique. The oily water purification device comprises a working table, wherein a first filtering tank and a secondfiltering tank are arranged from left to right on the upper surface of the working table; a first motor is connected with the top center of the first filtering tank; a rotating shaft is connected with the output end of the first motor through a coupling; the rotating shaft is connected with a bottom disc; second motors in symmetry are fixedly connected with two ends of the lower surface of the bottom disc; stirring shafts are connected with output ends of the second motors through couplings; a plurality of symmetric stirring rods are connected with side walls of the stirring shafts; an oil collection tank and a fixing plate are arranged from left to right on the upper surface of the second filtering tank. The oily water purification device is simple in structure, convenient to operate, relatively low in cost and high in oily water purification efficiency since oily water is purified through a third filtering tank, the first filtering tank and the second filtering tank in sequence.

The invention relates to the field of photocatalysis, in particular to a nanocomposite for photocatalystis as well as a preparation method and an application of the nanocomposite. The nanocomposite isprepared from TiO2, SnO2 and multiwalled carbon nanotubes through composition, wherein TiO2 and SnO2 are supported on the multiwalled carbon nanotubes. The nanocomposite is sprayed to the surface ofpolypropylene fiber fabric, and the sprayed polypropylene fiber fabric makes contact with water, thereby treating pollutants in water. The prepared nanocomposite has the advantages of high catalysis efficiency, high stability, easiness in recovery and avoidance of secondary pollution.

The invention provides a two-dimensional layered ternary nano-composite photocatalyst, and a preparation method and application thereof. The preparation method comprises the following steps: placing melamine in a muffle furnace, and calcining to obtain g-C3N4; grinding the g-C3N4 into powder, adding the powder into deionized water, and performing ultrasonic dispersion to obtain a g-C3N4 suspension; and adding nickel nitrate hexahydrate and cobalt nitrate hexahydrate into the g-C3N4 suspension, stirring for a first time, dropwise adding ammonia water, transferring into a high-pressure kettle, carrying out a hydrothermal reaction, and carrying out post-treatment to obtain the two-dimensional layered ternary nano-composite photocatalyst. A water reduction cocatalyst and a water oxidation cocatalyst are introduced at the same time, under the synergistic effect of the water reduction cocatalyst and the water oxidation cocatalyst, electron-hole separation is accelerated, and the catalytic efficiency is improved; and the material with a two-dimensional layered structure is compounded, so that the interface contact area is increased, the transfer of interface charges is accelerated, and the photocatalytic activity is effectively improved.

The invention belongs to the technical field of dye wastewater treatment, and particularly relates to a photocatalytic self-cleaning loose nanofiltration membrane and a preparation method and application thereof. The preparation method comprises the following steps: dissolving melamine and Zn-TCPP nanosheets in water to obtain a water phase solution, performing suction filtration on the water phase solution to obtain a base membrane, adding an oil phase solution, performing a reaction to form a selective layer on the base membrane, and performing a thermal cross-linking reaction to obtain theloose nanofiltration membrane. According to the nanofiltration membrane provided by the invention, high-efficiency and high-flux separation of dye wastewater can be realized, the dye can be degraded by utilizing a photocatalysis method to realize self-cleaning of the membrane, and continuous use of the membrane is realized.

The invention discloses an antibacterial plastic master batch, a preparation method thereof and antibacterial plastic. The antibacterial plastic master batch comprises the following raw material components in parts by weight: 15-40 parts of nano zinc oxide, 1-15 parts of nano silver powder, 1-15 parts of nano copper powder, 0.5-5 parts of graphene, 5-25 parts of a long afterglow luminescent material, 1-6 parts of a dispersing agent, 0.1-5 parts of a coupling agent and 30-70 parts of carrier resin. The antibacterial component in the antibacterial plastic master batch takes the nano zinc oxide as a substrate, and the nano silver powder, the nano copper powder, the graphene and the long afterglow luminescent material are added in an auxiliary manner, so that the antibacterial plastic master batch can play an antibacterial role in a relatively wide wavelength range, and also can play an antibacterial role in the absence of illumination.

The invention provides a preparation method of an oxygen-doped graphitic carbon nitride photocatalyst, which comprises the steps of mixing and grinding g-C3N4 and ascorbic acid, heating, keeping the temperature, and cooling to room temperature to obtain the oxygen-doped g-C3N4 photocatalyst. By pyrolyzing a ground mixture of ascorbic acid and pure g-C3N4 and changing the physical tissue structureof the g-C3N4 through ascorbic acid decomposition, the catalyst with a large specific surface area can be obtained. Based on the fact that ascorbic acid is easy to decompose during heating, ascorbic acid is heated to mainly generate furan derivatives, pentabasic alcohol and polyunsaturated cyclic ketone, the furan derivatives, pentabasic alcohol and polyunsaturated cyclic ketone can be used as oxygen doping sources, oxygen elements are doped into g-C3N4, and high-oxygen-doped g-C3N4 is obtained.