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256results about How to "Reduce dilution" patented technology
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Production method of hot stamping foil
ActiveCN101879819ASolving Hot Stamping RequirementsEvenly paintedCoatingsThermographyPolyvinyl butyralHot stamping
The invention discloses a production method of hot stamping foil, which adopts six production process flows: release coating, protective layer coating, color layer coating, accurate aluminizing and curing glue layer coating. In the whole production process, water soluble glue, water soluble ink and water soluble gloss oil are used to realize the integrated production of the hot stamping foil, methacrylates and monomers which are emulsified and polymerized are mixed in a certain ratio, a dye leveler, thickener and the like are added in the mixture, the resulting product is coated and dried, polyvinyl butyral-based glue is coated, and the whole production of the hot stamping foil is finished. The hot stamping foil produced by the process has the characteristics of energy conservation, environmental protection and sanitation.
Owner:江苏卫星新材料股份有限公司
Dephosphorization and denitrification, mud decrement and phosphorus recovery integrated sewage treatment device and method thereof
InactiveCN101544453AImprove system synchronous denitrification and dephosphorization capacityReduce pool capacityTreatment with aerobic and anaerobic processesMultistage water/sewage treatmentContinuous flowChemistry
Owner:CHONGQING UNIV
Systems and methods for multi-view imaging and tomography
ActiveUS20140294147A1Reduce the signature of a heavy metalEasy to identifyLinear acceleratorsMaterial analysis by transmitting radiationAngular scanBending magnets
Radiation scanning systems providing multiple views of an object in different planes and a reconstruction algorithm for reconstructing quasi-three-dimensional images from a limited number of views. A system may include bend magnets to direct accelerated charged particles to multiple targets in different viewing locations. Another system collimates radiation generated by a plurality of radiation sources into multiple beams for scanning an object at multiple angles. The object may be a cargo container, for example. The reconstruction algorithm uses an optimization algorithm and imaging and feasibility models to reconstruct quasi-three-dimensional images from the limited number of views.
Owner:VAREX IMAGING CORP
Method and system for oil dilution control
ActiveUS20140058647A1Reduce and avoid degradationImprove fuel economyHybrid vehiclesAnalogue computers for vehiclesAutomotive engineeringFuel tank
Methods and systems are provided for operating an engine in a hybrid vehicle in response to fuel and water dilution of engine lubricating oil. An engine oil dilution counter may be adjusted based on a number of engine hot starts and duration of engine operation above a threshold temperature. In addition, the counter may be adjusted if the engine is started to deplete stale fuel in the fuel tank.
Owner:FORD GLOBAL TECH LLC
Method and apparatus for compensating for variations in particle trajectories in electrostatic sorter for flowcell cytometer
ActiveUS7691636B2High puritySpeed of travel can be readilyElectrostatic separationCharacter and pattern recognitionFluid transportCarrier fluid
A flow cytometer subsystems monitors a particle sensing zone within a fluid transport chamber for the presence of a particle (e.g., blood cell) traveling therethrough, and produces an output pulse, whose width is representative of the trajectory and thereby the length of time that the particle is within the particle sensing zone as it travels through the fluid transport chamber. This output pulse is then processed in accordance with geometry parameters of successive time delay zones of the particle fluid transport chamber through which the particle passes, in order to derive a composite time delay between the sensing of the particle to the time at which a fluid droplet containing the particle will break off from the carrier fluid. The composite time delay is employed to accurately establish the time at which the particle is controllably charged as the particle breaks off from the carrier fluid.
Owner:BECKMAN COULTER INC
Water-based environment-friendly finishing paint and preparation method thereof
InactiveCN101712833AGood anti-corrosion decoration effectHigh hardnessEpoxy resin coatingsWater basedEpoxy
The invention discloses a water-based environment-friendly finishing paint, which is prepared from the following compositions in part by weight: 20 to 70 parts of water borne acrylic resin solution of which the solid content is 30 to 80 percent and / or 20 to 70 parts of water borne epoxy resin solution of which the solid content is 30 to 80 percent, 4 to 10 parts of water borne amino resin solution of which the solid content is 60 to 98 percent; 1 to 5 parts of organic amine, 0.2 to 2 parts of wetting and leveling agent, 0.2 to 2 parts of thickener, 0.1 to 0.8 part of defoaming agent, 1 to 5 parts of adhesion promoter, 0.2 to 5 parts of catalyst, 10 to 30 parts of alcohol diluting solvent and / or 1 to 5 parts of nontoxic ether diluting solvent, and 20 to 50 parts of deionized water, wherein the catalyst is one or more of ammonias, alcohols and benzenesulfonic acids. The water-based environment-friendly finishing paint has the advantages of wide applicable range, high hardness, good flexibility, strong adhesion, good scratchproof performance, and environmental protection. Simultaneously, the invention also discloses a method for preparing the water-based environment-friendly finishing paint.
Owner:重庆亢石新材料科技有限公司
Aqueous environment-friendly packaging steel drum paint and preparation method thereof
InactiveCN101735703AGood anti-corrosion decoration effectHigh hardnessAnti-corrosive paintsEpoxy resin coatingsEpoxyAcrylic resin
The invention relates to an aqueous environment-friendly packaging steel drum paint, which is prepared by mixing the following compositions in part by weight: 20 to 70 parts of aqueous solution of acrylic resin with a solid content of 30 to 80 percent and / or aqueous solution of epoxy resin with the solid content of 30 to 80 percent, 4 to 10 parts of aqueous solution of amino resin with the solid content of 60 to 98 percent, 1 to 5 parts of organic amine, 1 to 50 parts of filling materials with the granularity of more than 2,000 meshes, 0.5 to 10 parts of color paste, 0.2 to 2 parts of wetting levelling agent, 0.2 to 2 parts of thickening agent, 0.1 to 0.8 part of antifoaming agent, 1 to 5 parts of adhesive force accelerant, 0.2 to 5 parts of catalyst, 0 to 30 parts of alcohol diluting solvent and / or 0 to 5 parts of non-toxic ether diluting solvent, and 20 to 50 parts of deionized water. The aqueous environment-friendly packaging steel drum paint has the advantages of wide application range, high rigidity, good flexibility, strong adhesive force and good anti-scraping and anti-collision properties and environmental protection; and meanwhile, the invention discloses a preparation method for the aqueous environment-friendly packaging steel drum paint.
Owner:重庆亢石新材料科技有限公司
Flash vapor sampling for a trace chemical detector
InactiveUS7098672B2Life maximizationMinimize power consumptionResistance/reactance/impedenceWithdrawing sample devicesUltraviolet lightsIon-mobility spectrometry
Owner:LEIDOS SECURITY DETECTION & AUTOMATION INC
Multi-mode sequencing batch active sludge sewage treatment method and system
ActiveCN102502963AIncrease concentrationImprove phosphorus removal effectTreatment with aerobic and anaerobic processesAnaerobic aerobicNitrogen
The invention relates to a multi-mode constant-water-level sequencing batch active sludge sewage treatment method and system, belonging to the technical field of sewage treatment. The system comprises a sludge concentration pre-anoxic pond, an anaerobic pond, an anoxic pond, an aerobic pond, a facultative pond and a sequencing batch pond which are communicated, wherein the facultative pond runs in an aerobic or anoxic way. According to the system, multi-mode sewage treatment ways including an anaerobic-anoxic-aerobic mode, an anoxic-anaerobic-aerobic mode and an anaerobic-anoxic-aerobic-anoxic-aerobic mode can be performed. Due to the adoption of the sewage treatment method, the removing effects of nitrogen, phosphorus and organic matters can be enhanced, and equipment utilization ratio is increased.
Owner:THUNIP CORP LTD
Multi-level biological nitrogen and phosphorus removal sewage treatment method and device
InactiveCN101885559AImprove filtration efficiencyReduce dilutionMultistage water/sewage treatmentBiological water/sewage treatmentSludgeNitrogen
The invention discloses a multi-level biological nitrogen and phosphorus removal sewage treatment method. The method comprises the following steps of: introducing sewage into an anaerobic pond; introducing the sewage treated in the anaerobic pond into an anoxic pond at the front section of an anoxic-aerobic treatment unit; draining all sewage into a settling pond through an aerobic pond of the last level; draining the settled sludge into a returned sludge concentration pond; draining supernatant in the returned sludge concentration pond into the aerobic pond of the last level; and draining the sludge in the returned sludge concentration pond into the initial anaerobic pond through a pre-anoxic pond for circular treatment. The invention also provides a corresponding treatment device. The method and the device have the advantages of only adding the returned sludge concentration pond and the pre-anoxic pond compared with the A2O process in the prior art and improving the reaction efficiency by adjusting the connection relationship among the reaction ponds.
Owner:CORSTAR ENVIRONMENTAL EQUIP SHANGHAI
Double-phase steel plate and manufacturing method thereof
ActiveCN102586688AReduce the degree of enrichmentReduce defects such as red rustManufacturing technologyDouble phase
The invention provides a double-phase steel plate which comprises 0.07-0.098 of C, 0.1-0.4 of Si, 1.95-2.2 of Mn, 0.3-0.6 of Cr, less than or equal to 0.015 of P, less than or equal to 0.004 of S, less than or equal to 0.005 of N, 0.015-0.04 of Nb, 0.015-0.04 of Ti, 0.015-0.045 of Al, and 0.002-0.004 of B or 0.2-0.4 or Mo, wherein Pcm equals to C+Si / 30+Mn / 20+2P+4S which is less than or equals to 0.24; and the double-phase steel plate also comprises the balance of Fe and unavoidable impurities. The invention also provides a manufacturing method of the double-phase steel plate. The high-strength uniform-performance double-phase steel plate can be obtained by the proper composition design and manufacturing technology, and the manufacturing requirements on parts of a high-strength automobile body can be better met.
Owner:BAOSHAN IRON & STEEL CO LTD
Catalytic system for cellulose acylation process for producing said catalytic system, and for its practical application
InactiveUS6407224B1Reduce the degree of polymerizationExtended durationSugar derivativesOrganic-compounds/hydrides/coordination-complexes catalystsAcetic acidCellulose
A catalytic system for cellulose acylation includes an adduct of sulfuric acid with N,N-dimethylacetamide, free sulfuric acid or free N,N-dimethylacetamide with the following mole ratio of the components: adduct:1.0; free sulfuric acid, max:0.49; or free N,N-dimethylacetamide, max:0.4. A process for producing such a catalytic system is based upon reacting sulfuric acid with N,N-dimethylacetamide in an anhydrous medium at a temperature of 0° C.-25° C. with the following mole weight ratio of the components: sulfuric acid:1.0; N,N-dimethylacetamide, max:1.4. A process for cellulose acylation in the presence of this catalytic system incorporates cellulose treatment with acetic acid followed by treatment of the resultant activated cellulose with a lower fatty acid anhydride at a temperature of 10° C.-90° C. in the presence of this catalytic system taken in an amount of 1.5-30.0 wt. % of the cellulose weight in terms of sulfuric acid, a weight ratio of the liquid phase and cellulose being 3-7:1, respectively.
Owner:NAUCHNO PROIZVODSTVENNAYA FA EFIRY TSELLJULOSY
Method for regenerating a diesel particulate filter
InactiveUS20110066354A1Improve cooling effectImprove combustion efficiencyElectrical controlInternal combustion piston enginesExhaust valveCombustion chamber
A method is provided for regenerating a diesel particulate filter within a diesel engine system that includes, but is not limited to at least a combustion chamber defined by a reciprocating piston inside a cylinder, at least an exhaust valve for cyclically open the combustion chamber towards an exhaust line, and the diesel particulate filter located in the exhaust line, wherein the method comprises injecting an amount of fuel into the combustion chamber by means of least two consecutive after-injection pulses (AIP1-AIP3), each of which starts (SOI) after the piston has passed the top dead center (TDC), and sufficiently near to the latter for the fuel to burn at least partially inside the combustion chamber.
Owner:GM GLOBAL TECH OPERATIONS LLC
Flash vapor sampling for a trace chemical detector
InactiveUS20050007119A1Accelerate emissionsMinimize power consumptionResistance/reactance/impedenceWithdrawing sample devicesPhysicsOrganic molecules
The presence of trace molecules in air is often determined using high sensitivity gas sensing instruments, such as an ion mobility spectrometer. Such devices are commonly utilized in the fields of explosives detection, identification of narcotics, and in applications characterized by the presence of very low airborne concentrations of organic molecules of special interest. The sensitivity of such instruments is dependent on the concentration of target gas in the sample. The sampling efficiency can be greatly improved when the target object is warmed, even by only a few degrees. A directed emission of photons in the range between infrared and ultraviolet light can be used to significantly enhance vapor emission.
Owner:LEIDOS SECURITY DETECTION & AUTOMATION INC
Beverage Supplement and Method for Making the Same
InactiveUS20140106033A1Reduce dilutionExpedite complete liquefactionReady-for-oven doughsPre-extraction tea treatmentFlavorLiquefaction
A beverage supplement and method for making the same is disclosed. In some embodiments the beverage supplement is comprised of a first frozen composition made from at least one additive mixed with at least one liquid and a second frozen composition made from at least one additive mixed with at least one liquid, wherein the resulting frozen compositions may have different / varying surface areas, shapes, volumes, flavors, and concentrations. Varying the combination of surface areas, shapes, volumes, formulas, flavors, and concentrations of frozen compositions influences the duration of complete liquefaction and the release of additives, allowing a user to create an iced beverage with greater flavor control.
Owner:COMETEER INC
Methods and compounds for obliteration of vessels
InactiveUS20080050436A1High viscosityHigh strengthSalicyclic acid active ingredientsPowder deliverySclerotherapySelf-assembly
A minimally invasive method that allows for complete obliteration of the affected vessels without scarring or any of the other undesirable complications of conventional or foam sclerotherapy. More particularly, the present invention relates to a method for using a non-foaming thickener to reduce dilution and diffusion of the sclerosant in the blood vessel and enhance the efficacy of the sclerotherapy treatment. The thickener can be thickening agent, hydrogel, environmentally sensitive hydrogel, and self-assembly polymer, etc. After it is mixed with sclerosant and injected into the blood vessel through a needle or a catheter, the compound will replace blood and obliterate the affected vessels.
Owner:CHU JACK F
Method for judging and controlling super detonation
ActiveCN103334846AIncrease fuel consumptionEasy dischargeElectrical controlMachines/enginesDetonationWork cycle
The invention provides a method for judging and controlling super detonation. The method comprises the following steps of: S1, judging whether super detonation occurs to a cylinder of a gasoline engine in the working cycle and if yes, carrying out the step S2; and S2, in the gas inlet process of the following n working cycles, carrying out oil spraying for twice on the cylinder to which super detonation occurs, judging whether super detonation occurs to the cylinder in the n working cycles, recovering the cylinder to the declared working condition in the following working cycles if no, and returning to the step S2 if yes, wherein n is more than or equal to 1. By the method disclosed by the invention, continuous occurrence of super detonation can be effectively inhibited; any additional devices are not required; and cost is low.
Owner:TSINGHUA UNIV
Stable gas membrane and method used for removing, recovering, and gathering ammonia or organic amine from dosage liquor or wastewater
The invention relates to a stable gas membrane used for removing, recovering, and gathering ammonia or organic amine from dosage liquor or wastewater. The gas membrane comprises a membrane shell, hollow fibrous membranes (A) and hollow fibrous membranes (B). A cavity is provided in the middle of the membrane shell. An inlet and an outlet are respectively arranged on each of the two ends of the membrane shell. The hollow fibrous membranes (A) and the hollow fibrous membranes (B) are positioned in the cavity of the membrane shell. A shell pass outlet communicating with the atmosphere is arranged on a lower end of the membrane shell. The hollow fibrous membranes (A) and the hollow fibrous membranes (B) are uniformly arranged in the membrane shell with regular spaces. Dosage liquor or wastewater containing ammonia or organic amine is delivered through the tube pass of the hollow fibrous membranes (A), and absorption liquid is delivered through the tube pass of the hollow fibrous membranes(B). With the gas membrane provided by the invention, problems of traditional gas membranes of leakage and low service life are overcome; dilution of a byproduct ammonium salt solution caused by a concomitant osmotic distillation phenomenon can be effectively inhibited; ammonium salt concentration of the byproduct ammonium salt solution can be increased from 10-20% to 20-40%; mass transfer coefficient at the acid absorption liquid side can be substantially improved; the ammonia removing efficiency is high; the ammonia removing effect is stable for a long-term; and the service life of membranesets can be improved by 3-10 times than common gas membranes.
Owner:天津凯铂能膜工程技术有限公司
Lubrication and cooling system
ActiveUS20160003510A1Reduce pressureSolve absorptionCompressorPump componentsLubricationAutomotive engineering
A system for reducing the refrigerant pressure in an oil sump (10) or in a cavity (352) of a housing. The invention is particularly useful for reducing pressure in a compressor (23) for heat pump applications that has been validated for water chiller operations or in turbine and generator systems in ORC systems generating electricity using refrigerant, the ORC systems essentially being a heat pump application operating in reverse. An auxiliary compressor (509), an auxiliary condenser (709) or an ejector pump (609) may be used to reduce pressure in the oil sump (10), to separate refrigerant from oil. The auxiliary compressor (509), the auxiliary condenser (709) or the ejector pump (609) may also be used to reduce the pressure of refrigerant in the housing of a compressor in heat pump applications at temperatures and pressures at which the compressor was validated for water chiller applications and of the turbine and generator in ORC applications.
Owner:JOHNSON CONTROLS TYCO IP HLDG LLP
Apparatus and method for ion mobility spectrometry and sample introduction
InactiveUS20120228490A1Simple introductionReduces and eliminates cross contaminationMaterial analysis by electric/magnetic meansIsotope separationESI mass spectrometrySimple sample
The IMS apparatus and methods described in this invention involve setting the ion detector at the highest potential of the drift tube and setting the ionization source at ground or near ground potential. The methods allow significantly simple sample introduction without the limitation of the high potential (voltage) concern of the front end sample delivery. The invention also describes bringing samples directly into the ion mobility drift tube. The invention further describes using single syringe for sample introduction via an electrospray ionization method.
Owner:EXCELLIMS CORP
Efficient liquid-phase conic chromatographic column
InactiveCN1366180AIncrease loadReduce load capacityIon-exchange process apparatusComponent separationChromatographic separationEngineering
A high-efficiency cone-shaped preparation column for liquid chromatography is composed of head body and tail of column with inside diameter of head inlet larger than inside diameter of tail outlet. Cone-shaped liquid flow guide channel, distribution disk and sieve plate constitute the liquid flow distributing system located on the head of the column. The distribution disk consists of multiple radial liquid flow channels concentric liquid collecting channel and liquid exuding holes. Inside diameter of the inlet is 2R=10mm-2000mm and inside diameter of the outlet is 2r=3mm-1800mm, the length ofthe column is L=5cm-100cm. Angle of cone is is in range of 1-20 degrees. Various chromatographic separation media can be filled into the cone. The ivnented cone-shaped preparation column can increasecolumn efficiency and specimen loading and its diluting effect of separated components is lower than that of cylindrical chromatographic column.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Using Fabric Templates to Obtain Multiple Finishes by Laser Finishing
ActiveUS20180165736A1Reduce finishing costsLow costPattern makingSewing apparatusLost salesTime to market
Laser finishing of apparel products allows an operating model that reduces finishing cost, lowers carrying costs, increases productivity, shortens time to market, be more reactive to trends, reduce product constraints, reduces lost sales and dilution, and more. Improved aspects include design, development, planning, merchandising, selling, making, and delivering. The model uses fabric templates, each of which can be used to produce a multitude of laser finishes. Operational efficiency is improved.
Owner:LEVI STRAUSS & CO
Catalyst heating with exhaust back-pressure
ActiveUS20140069380A1Heating fastEfficient emissionsElectrical controlInternal combustion piston enginesExhaust valveExhaust gas recirculation
Embodiments for controlling an exhaust back-pressure valve are provided. In one example, a method for operating an engine comprises closing an exhaust back-pressure valve in response to a component temperature, adjusting intake and / or exhaust valve operation in response to closing the exhaust back-pressure valve to reduce cylinder internal exhaust gas recirculation (EGR), and while the exhaust back-pressure valve is closing, indicating degradation of an exhaust back-pressure system if a designated engine operating parameter remains constant. In this way, degradation of the exhaust back-pressure system may be diagnosed while maintaining combustion stability.
Owner:FORD GLOBAL TECH LLC
Sewage treatment method for nitrogen and phosphorus removal through combination of biofilm process and multilevel activated sludge process
InactiveCN102826715ALong mud ageIncrease biological fillerWater contaminantsMultistage water/sewage treatmentActivated sludgeMoving bed biofilm reactor
The invention relates to a sewage treatment method for nitrogen and phosphorus removal through the combination of a biofilm process and a multilevel activated sludge process. Sewage which is delivered into an anoxic tank is distributed to respectively flow into a first anoxic tank and a second anoxic tank; the sewage which flows by the first anoxic tank then flows into an aerobic tank, and is converged with the sewage which flows into the second anoxic tank, and the converged sewage flows into a moving bed biofilm reactor (MBBR) tank to be treated and flows into a sedimentation tank; and the sewage is stopped in the sedimentation tank, part sludge is discharge into a preconcentration tank, and remains in the preconcentration tank for 0.25-1.0 hour, supernatant flows back to the second anoxic tank by passing by the top of the preconcentration tank, and the concentrated sludge is delivered to a pre-anoxic tank through a reflow passage at the bottom of the preconcentration tank, and flows back to the anoxic tank finally through the pre-anoxic tank for circulation treatment. According to the method, the biological treatment nitrogen and phosphorus removal effect is ensured through MBBR aerobic tank and preposed anaerobic zone carbon source distribution, returned sludge preconcentration and other typical technological methods, thus, the municipal sewage treatment effect is improved, and the pollution to the environment is reduced.
Owner:TONGJI UNIV
Low-pressure egr control during compressor bypass valve operation
ActiveUS20140202435A1Reduce intakeReduce dilutionElectrical controlNon-fuel substance addition to fuelOxygen sensorExhaust gas recirculation
A turbocharged engine system including a low-pressure exhaust gas recirculation (EGR) system and an intake oxygen sensor is described, along with methods for its operation. The system includes a compressor bypass valve arranged in a passage bypassing a turbocharger compressor, and an EGR valve arranged in an EGR system which may be adjusted to adjust an amount of exhaust gas recirculated to the engine intake. In one example method, over-dilution of an engine intake charge may be reduced by reducing EGR upon opening of the compressor bypass valve, and then increasing the EGR only after measurements from an intake oxygen sensor indicate that intake air dilution has decreased below a threshold.
Owner:FORD GLOBAL TECH LLC
Portable non-power-source microfluidic cell separation chip
ActiveCN106434302AEasy to separateReduce dilutionApparatus sterilizationMicroorganism fixing/supporting apparatusMicrometerEngineering
The invention discloses a portable non-power-source microfluidic cell separation chip. The chip comprises a substrate and a cover plate covering the substrate. The substrate comprises an input opening, a flow guiding region, a separating region and a collection opening in sequence from the input end to the output end. The input opening is used for dropwise adding body fluid with cells to be separated, the flow guiding region is used for guiding the body fluid with the cells to be separated to the separating region, the separating region is used for separating the cells, the collection opening is used for collecting the cells separated out in the separating region, the flow guiding region and the separating region are provided with a plurality of regularly-distributed columnar protrusions, the height of the columnar protrusions is 15-50 micrometers, the diameter of the columnar protrusions is 10-50 micrometers, the intervals between the columnar protrusions in the flow guiding region are 15-25 micrometers, and the intervals between the columnar protrusions in the separating region are 2-15 micrometers. The cell separation chip is powered through the capillary action force, does not need a power source, and is convenient to carry and manufacture and easy to operate and use.
Owner:HUAZHONG UNIV OF SCI & TECH
Method for using partial homogeneous charge compression ignition in a diesel internal combustion engine for NOx trap regeneration
InactiveUS20060201143A1Reduce soot formationWiden operation windowElectrical controlInternal combustion piston enginesHomogeneous charge compression ignitionWork cycle
A method for operating a diesel IC-engine being able to run in a conventional mode and in a partial Homogeneous Charge Compression Ignition (pHCCI) mode. The method comprises the features of switching the pHCCI mode from lean pHCCI to rich pHCCI as a response to a control signal indicating that the NOx-absorbent shall be regenerated. In the rich pHCCI mode, the ratio of recirculated exhaust gases is from 20 to 55%. The rich pHCCI mode further comprises the feature of injecting at least 70% of the fuel to be injected in each working cycle in the main injection whereby the central axis of the fuel spray is directed towards the piston bowl cavity. The method will increase the operation window for rich pHCCI which in turn will have the benefits of less oil dilution and better fuel economy while regenerating the NOx-absorbent.
Owner:FORD GLOBAL TECH LLC
Method for preparing acid from high-concentration SO2 smelting flue gas
InactiveCN107892280AInhibition reaction temperatureLow running costSulfur compoundsMetallic sulfideCopper sulfide
The invention discloses a method for preparing acid from high-concentration SO2 smelting flue gas. The acid preparing method comprises the purification process, the dry suction process, the conversionprocess and the finished product obtaining process. In the metallurgical industry, most smelting raw materials are metal sulfide such as zinc sulfide and copper sulfide, a large amount of sulfur dioxide smoke is generated in the smelting process, and pollution to the environment is severe; when the concentration of SO2 in the flue gas reaches a certain degree, the method for preparing the acid from the smelting flue gas can be used, waste is changed into wealth, sulfuric acid is produced, and the purposes of pollutant emission reduction and comprehensive utilization of waste gas are also achieved. According to the method, the reversibility of a sulfur dioxide conversion reaction is utilized, before the high-concentration SO2 smelting flue gas enters a reactor, part of the flue gas is usedfor reacting with diluent air and pure oxygen to generate a small amount of sulfur trioxide, and the one-layer reaction temperature of a converter is inhibited. The pure oxygen is supplemented, so that the amount of the diluent air is reduced, the size of equipment is reduced, and the operating cost of an acid preparing device is reduced.
Owner:广西金川有色金属有限公司
Scalable multiple-proportion dilution microfluidic chip as well as preparation method and dilution method of microfluidic chip
ActiveCN109847815AMeet the requirements of multi-stage dilutionAccurate concentrationMixing methodsLaboratory glasswaresMixed flowSquare waveform
The invention provides a scalable multiple-proportion dilution microfluidic chip. The microfluidic chip is composed of a cover sheet and a substrate, the upper layer is the cover sheet provided with asquare wave micro flow channel network structure, the lower layer is the flat substrate, and the upper-layer cover sheet and the lower-layer substrate form a closed micro flow channel network throughbonding; two sample inlets and N sample outlets located in both ends of the micro flow channel are connected with soft guide pipes outside, wherein N is an integer >= 1, and N outlets represent a dilution level of a liquid sample to be diluted; a reagent sample to be diluted and a diluent in a micro-syringe are added into the sample inlets through a micro injection pump under a constant positivepressure, respectively, and the soft guide pipes at the sample outlets are connected with a collection device of a sample after multiple-proportion dilution to form the microfluidic chip; each sampleinlet is provided with one filter tank, and the interior of each filter tank is provided with a row of same rectangular stop blocks with a certain interval; each-level dilution module is composed of amixed flow channel and a connecting flow channel, and lengths of the mixed flow channel and the connecting channel are fixed; and rectangular baffles arranged in a staggered manner are arranged at the corner of the interior of the square wave mixed flow channel in each-level dilution zone.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI
Method and system for oil dilution control
ActiveUS9403427B2Reduce and avoid degradationImprove fuel economyElectrical controlInternal combustion piston enginesFuel tankHybrid vehicle
Owner:FORD GLOBAL TECH LLC
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