51results about How to "Realize separation and extraction" patented technology

The invention provides a method for green recovery of waste circuit boards by a cyanide-free full-wet whole set process, and belongs to the field of recycle economy. The method comprises the following steps of: mechanically crushing waste circuit boards; separating by adopting gravitational segregation to obtain impure copper powder and non-metallic powder; smelting and casting the impure copper powder to obtain a copper anode plate; and performing copper electrolytic refining on the copper anode plate; separating copper, gold, solver, platinum-palladium, lead and tin in the copper anode mud so as to recover the valuable metals of copper, gold, solver, platinum-palladium, lead and tin therein and performing wastewater recycling. The overall recovery rate of metals in the waste circuit boards reaches over 98 percent, the cathode copper obtained by the copper electrolytic refining reaches 4N level, the copper removal rate in the copper anode mud reaches over 96 percent, the recovery rate of the gold reaches over 98 percent, the recovery of the platinum-palladium reaches over 96 percent, the recovery rate of the silver and lead reaches over 95 percent, and the recovery rate of the tin reaches over 90 percent. The method for the green recovery of the waste circuit boards has the characteristics of cyanide-free full-wet property, wastewater recycling, and no secondary pollution.

The invention discloses a method for extracting various active ingredients from dendrobium officinale. The method comprises the following steps of: carrying out flash-extracting; centrifuging the flash-extracted crude extracting solution; carrying out alcohol precipitation and tertiary dehydration to the centrifuged liquid supernatant to obtain free polysaccharide; combining the centrifuged precipitates with polysaccharide and alkaloid extract; and extracting the various active ingredients from the dendrobium officinale, so that the comprehensive utilization of the dendrobium officinale resources is realized. The method disclosed by the invention is high in yield, capable of greatly shortening the extraction time during the extraction process, capable of avoiding the influences of thermal destruction to the products, capable of reducing the production cost and applicable to large-scale production.

The invention relates to a method for separating molybdenum and nickel from black shale containing molybdenum and nickel, belonging to the metallurgic-chemical technical field. The method is characterized in that the black shale containing molybdenum and nickel is crushed and ground and undergoes oxygen pressure leaching in a pressure pan by using diluted acids and oxidants, and leach solution containing molybdenum and nickel and leached mud are obtained after filtering; ammonium molybdate and nickel sulphate solution are obtained respectively after the leach solution undergoes extraction and back extraction by different back extraction agents. The method leaves out a calcining step existing in the conventional process, thereby avoiding the environmental pollution of gases such as SO2; by the oxygen pressure leaching, molybdenum and nickel in black carbonaceous shale containing molybdenum and nickel are directly converted and dissolved so as to generate molybdenum sulfate acyl((MoO2)SO4) and nickel sulfate(NiSO4) to enter the solution for enrichment, so that the method better realizes the separation and extraction of molybdenum and nickel and is a clean manufacturing technology with reinforced conversion; moreover, the principal process is not limited by changes of mineral compositions.

The invention relates to a high-speed RS485 energy/data transmission terminal which belongs to the field of data transmission technology in an industrial site bus. The transmission terminal comprises an FPGA device, a RS 485 interface unit, a network transformer unit, a terminal impedance matching unit and a DC energy unit, wherein the network transformer unit is respectively connected with the DC energy unit and the terminal impedance matching unit and is also connected with the FPGA device by the RS 485 interface unit. The method comprises the following steps: the terminal reads data, codes the data, carries out parallel/series conversion of the data and then overlays the data with DC energy signals to carry out long-line transmission; after the signals are received by the next level terminal, the serial data is separated from the DC energy signals to extract DC energy signals and detect the DC energy signals, and the original transmission data signals are extracted from the DC energy signals which is carried out parallel/series conversion and decoding. The invention has simplified peripheral hardware design, can increase data transmission rate, extend a transmission distance, has a simple hardware circuit, can be flexibly controlled and is convenient to expand the number of RS 485 transmission nodes.

The invention discloses a five-zone series supercritical carbon dioxide fluid simulated moving bed chromatography device and an operation method of the five-zone series supercritical carbon dioxide fluid simulated moving bed chromatography device. A supercritical fluid chromatography device and a liquid phase simulated moving bed chromatography device are integrated into the five-zone series supercritical fluid simulated moving bed chromatography device, especially the five-zone series supercritical fluid simulated moving bed chromatography device with supercritical carbon dioxide fluid as a flowing phase. Target component can be separated and extracted from multiple components in a continuous operation mode, a pressure gradient operation mode and a modifier gradient operation mode, the components are flexibly connected in series in a 4+3 mode or a 3+3 mode, one component in any position can be conveniently separated from the components, efficient, low-consumption, clean and large-scale chromatography separation of multiple component raw materials can be achieved, and the five-zone series supercritical carbon dioxide fluid simulated moving bed chromatography device is especially suitable for industrial preparation separation and can bring evident economic and social benefits.

The invention discloses a wafer test data processing method and system. The method includes steps of 1, testing wafers through a machine, and acquiring text format testing data; 2, extracting the text format testing data, and converting into XML format testing data; 3, performing multiple address storage on the converted XML format testing data. According to the method, data arrangement and classifying are performed on the text format testing data acquired by the system, and the text format testing data are converted into superimposed and nested XML format testing data, so that multiple information can be extracted in a separated manner, international factory requirements can be met, and data can be prevented from being stored in other formats; meanwhile, according to architecture design of XML format data, format remains consistently, processing efficiency is high, the architecture design can be applied in other systems and methods, data analysis is facilitated, and factory production requirements and future test scalability can be met.

The invention discloses a fractional extraction method of bioactive components from dates; the dates are selected, enucleated, washed with water, dried, ground into particles, added with 65-75% of ethanol for extracting for 2-3 times, and separated into date slag and filtrate; the filtrate is concentrated to obtain total flavonol soluble extract, the date slag is added with deionized water, the weight of which is 10-15 times of that of the date slag, for extracting 2-3 times and separated into water extract and residue; the water extract is concentrated to 1/8-1/6 of the original volume, the concentrated solution is added with 95% of ethanol which is 4-6 times of the volume of the concentrated solution to carry out alcohol precipitation separation for 10-18 hours, so as to obtain precipitate and filtrate; the precipitate is washed by the ethanol with the concentration of over 98% for 2-3 times, and is dried to obtain date crude polysaccharide, the filtrate is concentrated to obtain ribonucleotide water soluble extract; the residue is dried and ground into dietary fiber powder. The method realizes one-step fractional extraction of a plurality of active components from the dates, has simple operation, and does not adopt any organic solvent except ethanol, thus having safety, no toxicity and residue; the active components in dates can be completely extracted, thus achieving the purpose of making best use of dates.

The invnetion discloses a method to separate and extract synchronously total alkaloid and starch from caladium, which comprises: adding the caladium powder into alcohol, heating to reflux extract, hypersonic extract or quench extract, condensing the obtained material; recycling alcohol to obtain and dissolve the extract in chlorhydric acid; filtering, extracting the acid liquid with petroleum ether and ethyl acetate, alkalizing with ammonia to make the pH value larger than 9; extracting with chloroform till supernatant has no color, recycling chloroform and obtaining total alkaloid; drying and breaking the residual. floating on NaOH or NaHSO3 solution of the fine powder; abandoning the supernatant; using distilled water repeatedly to suspense the deposition; abandoning the supernatant, centrifugalizing the liquid, abandoning supernatant and impurity in bottom of liquid, and obtaining pure product. This invention is simple with high yield.

The invention provides a multi-channel power grid voltage synchronous signal extraction device. The device comprises an [alpha]-[beta] stationary coordinate system transformation circuit T[alpha][beta], positive and negative sequence d-q synchronous rotating coordinate system transformation circuit e<j[omega]t>, e<-j[omega]t>, e<j5[omega]t> and e<-j7[omega]t> of different frequencies, a subtracter, a PI adjuster, an integrator and a proportion arithmetic unit. The multi-channel power grid voltage synchronous signal extraction device has the advantages that under the condition that an input voltage has different-frequency harmonic waves, the device is capable of extracting synchronous signals of fundamental waves and can also extracting different-frequency positive and negative sequence components under the [alpha]-[beta] coordinate system and the d-q coordinate system, and frequency adaptivity is realized; in addition, negative sequence decoupling or instant symmetric component separation is not needed, only a d-q synchronous rotating coordinate system transformation circuit Tdq and feedback are needed, the separation and extraction of fundamental wave positive and negative sequence components are realized under a single synchronous reference coordinate system, the structure is simpler, and the operation amount is smaller.

The invention discloses an efficient and environment-friendly recovery method for precious metal palladium in a retired solid oxide fuel cell. The method comprises the steps that after being disassembled and crushed, the retired solid oxide fuel cell is put into octylphenol polyoxyethylene ether to remove organic substances, and the retired solid oxide fuel cell is dried after being washed; powderobtained in the previous step is lightly fired and is soaked in a eutectic solvent for a period of time, filtering is carried out, and filter residues are washed multiple times with distilled water;the filter residues are put in prepared [Hbet] [Tf2N] ionic liquid to be subjected to Pd leaching; and after leaching is completed, a three-electrode system is constructed with a leaching solution asan electrolyte for electrodeposition of Pd, after deposition is completed, a deposition solution is put in centrifugal equipment to be separated to obtain Pd, and the simple substance Pd can be prepared after washing and drying. According to the method, excessive use of acid and alkali is avoided, and the precious metal Pd with higher purity can be obtained through recovery on the basis of the simple process and environmental protection.

The invention discloses a measurement system and measurement method of a characteristic parameter of an MEMS capacitive acceleration meter. The measurement system comprises two parts: a balance capacitance bridge and a detection interface circuit, wherein the balance capacitance bridge consists of a first match capacitor Cref1, a second match capacitor Cref2 and an MEMS capacitive acceleration meter, and the detection interface circuit consists of a first electric charge amplifier, a second electric charge amplifier, an instrument amplifier, a spectrum analyzer, a first feedback capacitor Cf1,and a second feedback capacitor Cf2. The measurement system can drive and detect sensitive capacitance in the MEMS capacitive acceleration meter and separately extract different characteristic parameters. The electrical measurement method is based on an electrical measurement system, and can accurately measure the characteristic parameter of the MEMS capacitive acceleration meter according to accurate sensor gesture control, providing reference and guide for design of interface circuits in later period.

The invention belongs to the field of biosynthesis, and particularly relates to glycanase and application thereof in biosynthesis of ligustrazine. According to the glycanase, degenerate codons are adopted to replace part of nucleotide in the glyanase, codon optimization is achieved, and the catalytic activity of the glycanase is improved. The invention also provides a preparation method of acetoin, the acetoin is prepared by using microbial cells expressing the glycanase for whole-cell catalysis, and ligustrazine can be further prepared. The method disclosed by the invention is high in substrate conversion rate and high in yield, reduces the cost and is suitable for industrial production.

The invention belongs to the technical field of waste recycling and discloses a copper-based nickel plating-gold plating layer waste plating piece metal gradient recovery method. The method comprisesthe following steps of 1, putting plating pieces into ethyl alcohol to conduct cleaning to remove surface greasy dirt and then conducting cleaning through deionized water; 2, conducting gold solutiontreatment on the cleaned plating pieces; 3, conducting nickel solution treatment on the plating pieces subjected to gold solution treatment; 3.1, washing the surfaces of the plating pieces subjected to gold solution treatment through deionized water. Through the copper-based nickel plating-gold plating layer waste plating piece metal gradient recovery method, reaction is controllable; a gold plating layer on the outermost side of a base body can be quickly and selectively removed in priority, corrosion dissolution to a metallic nickel layer under the gold plating layer is small, and the purpose of separating and recycling metallic gold is achieved; the metallic nickel layer on the surface of each degolded plating piece is selectively separated and recycled; and finally, selective separation and recycling of gold, nickel and copper in the plating pieces are realized.

The invention relates to a steel smelting converter steel slag treatment micro-powder extraction and separation process, in particular to a steel smelting converter steel slag treatment micro-powder extraction and separation device which comprises a supporting base, a bearing disc, a magnetic separation assembly, an ejector rod assembly, a rotary material supporting mechanism and a rotary drivingmechanism. The magnetic separation assembly comprises a cylinder supporting base and three electromagnetic discs, the ejector rod assembly comprises a fixing shaft, a rotor wing plate, two ejector rodpieces and two springs, and the rotary material supporting mechanism comprises a center rotary drum, four material supporting discs and four tension springs. The device provided by the invention adopts a dry magnetic separation and extraction mode, can realize separation and extraction of the metal iron powder in the steel slag micro-powder, is simple in structure, can reduce expenditure and investment of water and electricity in the production and treatment process, and avoids waste of the separated metal iron powder.

The invention discloses a high-speed rail seismic source seismic signal extraction method based on equidistant spectrum characteristics. The method comprises the following steps of estimating the intervals of equidistant spectrums in an amplitude spectrum of the acquired high-speed rail seismic source seismic data; then, using a morphological component analysis method, on the basis of discrete cosine transform, to construct a new transform mode with interval constraints to represent the high-speed rail seismic source seismic signals more sparsely, using the continuous wavelet transform for sparsely representing the strong background noise in the high-speed rail seismic source seismic data, and constructing an over-complete dictionary; separating and extracting the high-speed rail seismic source seismic signal and the strong background noise in the high-speed rail seismic source seismic data by using a block coordinate relaxation algorithm, and filtering the random white noise, so thatthe extracted high-speed rail seismic source seismic signal is more complete in structure and higher in signal-to-noise ratio.

The invention belongs to the field of nonferrous metallurgy, and particularly discloses a method for leaching antimony oxide materials and electrodeposition-producing metalic antimony through a tartaric acid system. The method includes the steps that firstly, the antimony oxide materials are subjected to clean leaching with tartaric acid-sodium tartrate, antimony-rich leachate and leaching residues are obtained, the leachate is cooled, subjected to impurity removal and purified, purified liquid is subjected to diaphragm electrodeposition to electro-deposite the antimony, antimony pieces and tartaric acid electrolyte are obtained, and the obtained electrolyte returns to leach antimony oxide. The process is a novel separation and extraction method for the antimony oxide materials, strong acid and strong alkali adopted in the traditional process are omitted, the more moderate and edible tartaric acid system is adopted, equipment corrosion is reduced, the production environment is improved, the recovery rate of the antimony reaches 96% or above, and clean extraction of all antimony oxide resources can be achieved.

The invention relates to a method for simultaneously obtaining soybean protein and grease from soybeans by utilizing a specially designed machine and a solvent to process the soybeans. The machine generates mass bubbles in the solvent by a mechanical rotating mode and simultaneously break cell walls, release substance in cells, diffuse and dissolve the substance under the action of strong impulse force of the mass bubbles; the solvent comprises a polar solvent and a nonpolar solvent, and substances in the soybeans are distributed in the polar solvent and the nonpolar solvent according to polarity difference to be further processed so as to obtain the grease and the protein.

The invention discloses a coupling device and a microscopic-optical tweezer sorting system and sorting method. The coupling device comprises a top connector, an optical filter frame, a dichroscope frame, a bottom connector, a first supporting plate and a second supporting plate, and the top connector and the bottom connector are arranged in parallel and connected through the first supporting plate and the second supporting plate; the first supporting plate is provided with a light through hole, the dichroscope frame is installed on the second supporting plate, the optical filter frame is installed on the first supporting plate, and the top connector, the optical filter frame, the dichroscope frame and the bottom structure are all provided with concentric circular holes. An optical tweezer can be simply and quickly introduced into a commercial microscope through a coupling device, and meanwhile, a sorting system is added, so that the microscopic-optical tweezer sorting system and method are formed, the limitation that the commercial microscope is only used for observation is broken through, and multiple functions of single cell observation, capture operation and separation extraction are realized on one set of system.

A separating reacting pulverizer comprises a housing and a transmission device, the transmission device is arranged on the housing, a housing chamber is arranged in the housing, a vortex wheel is arranged in the housing chamber, the transmission device is connected with the vortex wheel, one end of the housing chamber is provided with a housing chamber inlet, and the other end of the housing chamber is provided with a housing chamber outlet. The separating reacting pulverizer is widely applicable to dust removal, desulfurization, denitrification, smoke removal, deodorization, vehicular and marine emission purification, lampblack suction, air purification, oil gas recycling, garbage treatment, nuclear waste treatment, powder separation, mineral separation, sea water desalination, wastewatertreatment, water purification, oil refining, oxygen production, reactors, boilers, combustors, pulverizing equipment and other fields, can provide deep purification for flue gas, can solve air pollution and water pollution, can eliminate haze, and allows water resource shortage, water pollution and environmental pollution to be thoroughly solved. The separating reacting pulverizer is suitable forproducing various powders, including nano powder, can provide low-temperature full combustion for fuels without producing nitric oxides, can provide intra-furnace dry desulfurization and dedusting, and allows a boiler to be completely green.

The invention discloses a vortex machine. The vortex machine includes a shell body and a transmission device; the transmission device is arranged on the shell body, a vortex current cavity is formed in the shell body, a transmission body with a working face of the outer periphery is arranged in the vortex current cavity, the transmission device is connected with the transmission body, when the transmission device drives the transmission body to rotate, the outer periphery of the transmission body drives a working medium to rotate and flow in the vortex current cavity at the periphery of the transmission body, and a vortex current cavity inlet is formed in one end of the vortex current cavity; and a vortex current cavity outlet is formed in the other end of the vortex current cavity, the inner diameter of at least one section of the vortex current cavity is gradually reduced towards the vortex current cavity outlet end, and at least one discharging opening is formed in the periphery ofthe vortex current cavity. The vortex machine can be widely used in the fields such as dust removal, desulfurization, de-nitrification, smoke removal, deodorization, vehicle and ship exhaust purification, oil smoke extraction, air purification, oil and gas recovery, waste disposal, nuclear waste treatment, powder selection, mineral processing, seawater desalination, sewage treatment, water purification, refining, oxygen production, reactors, boilers, burners, and grinding equipment, can achieve high degree purification of flue, can solve the air pollution and water pollution, and can prepare avariety of powders such as ultrafine powder and nano-powder.