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88results about How to "Efficient precipitation" patented technology
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Sub-micron filter
ActiveUS7601262B1Good resistanceEfficient precipitationMaterial nanotechnologySamplingComposite filterAluminium oxide
Aluminum hydroxide fibers approximately 2 nanometers in diameter and with surface areas ranging from 200 to 650 m2 / g have been found to be highly electropositive. When dispersed in water they are able to attach to and retain electronegative particles. When combined into a composite filter with other fibers or particles they can filter bacteria and nano size particulates such as viruses and colloidal particles at high flux through the filter. Such filters can be used for purification and sterilization of water, biological, medical and pharmaceutical fluids, and as a collector / concentrator for detection and assay of microbes and viruses. The alumina fibers are also capable of filtering sub-micron inorganic and metallic particles to produce ultra pure water. The fibers are suitable as a substrate for growth of cells. Macromolecules such as proteins may be separated from each other based on their electronegative charges.
Owner:ARGONIDE CORP
System for separating contaminents from fluids
ActiveUS20160280566A1Easy to separateEfficient precipitationWater treatment parameter controlSpecific water treatment objectivesParticulatesSensor array
A system for separating contaminants from fluids provides a modular mobile continuously operable site configurable multi-phase filtering system having an oil water separator 100, a dwell tank 220, a waste tank 250, an electrocoagulator 120 having plural concentrically aligned perforated tubular sacrificial electrodes, a first and a parallel second particulate filter 300A, 300B, a first and parallel second step-down membrane filter 400A, 400B, an optional ultra filtration filter 500, an optional reverse osmosis filter 600, a mixing station 700 and a totalizer and sensor array 900 to analyze, filter and treat fluids by separating contaminants and particulates and adjusting chemical content to meet specifications desired which will allow the use and re-use of the filtered fluid and the separated contaminants.
Owner:ECO SQUARED SOLUTIONS
High-strength bolt superior in delayed fracture and resistance and relaxation resistance
Disclosed is a high-strength bolt having a tensile strength of 1,200 N / mm2 or more and superior in delayed fracture resistance and relaxation resistance, prepared by wire-drawing a bolt steel containing the following elements: C: 0.5 to 1.0% (mass %, the same shall apply hereinafter), Si: 0.55 to 3%, Mn: 0.2 to 2%, P: 0.03% or less (but not 0%), S: 0.03% or less (but not 0%), and Al: 0.3% or less (but not 0%), and containing proeutectoid ferrite, proeutectoid cementite, bainite and martensite at a total areal rate of less than 20% and pearlite in balance; cold-heading the wire into a bolt shape; and then bluing the bolt in a temperature range of 100 to 500° C.
Owner:HONDA MOTOR CO LTD +2
Process for The Manufacture of Virus Safe Immunoglobulin
InactiveUS20070244305A1Eliminate the problemEfficient precipitationSerum immunoglobulinsPeptide preparation methodsProtein aggregationAnion-exchange chromatography
Process for preparing a purified immunoglobulin preparation. The process comprises the steps of subjecting a crude immunoglobulin solution to caprylic acid treatment, removing protein aggregates and viruses from the immunoglobulin solution, subjecting the immunoglobulin solution to anion exchange chromatography in order to purify the immunoglobulin, filtering the immunoglobulin solution thus obtained on a virus-removal filter to produce an eluate containing immunoglobulin, and recovering the immunoglobulin. By combining caprylic acid treatment and precipitation with a protein precipitant the level of aggregated proteins and viruses is effectively reduced and a truly virus safe preparation is provided after filtration.
Owner:SUOMEN PUNAINEN RISTI VERIPALVELU
Process for conditioning an aqueous solution for efficient colloidal precipitation
InactiveUS20070108132A1Efficient precipitationPrevent precipitationSedimentation separationMultistage water/sewage treatmentPhysical conditioningColloid
An ionic conditioning process and molecular arrangement for removing colloids from an aqueous solution, where the aqueous solution is transported to and / or through several conditioning zones for purification. The process utilizes vessels within which stages of conditioning are performed and are monitored. The conditioning processes perform ionic, chemical and physical conditioning to the colloids in the aqueous solution causing the colloids to be transformed into a state that reacts with a polymer flocculating agent and is thereby precipitated rapidly and efficiently for removal. The effluent as well as the precipitate can be further treated with conventional means to meet certain specifications for discharge and disposal.
Owner:DE GUEVARA CESAR LADRON
Centrifugal precipitating method and light emitting diode and apparatus using the same
InactiveUS20100103645A1Efficient precipitationQuality improvementLighting support devicesSolid-state devicesEffect lightColloid
A centrifugal precipitating method is provided. The method includes the following steps. A lighting structure is provided. The lighting structure includes a frame, a chip and a colloid. The frame has a recess. The chip is disposed on a bottom surface of the recess. The colloid includes a glue and several fluorescent particles. The glue is filled in the recess and covers the chip. The fluorescent particles are distributed in the glue. Then, the lighting structure is rotated to move the fluorescent particles toward the bottom surface of the recess.
Owner:WELLYPOWER OPTRONICS CORP
System for separating contaminants from fluids
InactiveUS20160221842A1Efficient precipitationEnhance and facilitate separationWaste water treatment from quariesWater treatment parameter controlSensor arrayParticulates
A system for separating contaminants from fluids provides a modular mobile continuously operable site configurable multi-phase filtering system having an oil water separator, a dwell tank, a waste tank, an optimizer, a first and a parallel second particulate filter, a first and parallel second step-down membrane filter, and optional ultra filtration filter, an optional reverse osmosis filter, a mixing station and a totalizer and sensor array to analyze, filter and treat fluids by separating contaminants and particulates and adjusting chemical content to meet specifications desired which will allow the use and re-use of the filtered fluid and the separated contaminants.
Owner:ECO SQUARED SOLUTIONS
Technology for recycling platinum and palladium from acid solution containing low concentration of platinum family precious metals by adopting reducing precipitation method
InactiveCN103421956AEfficient precipitationLow supernatant platinum and palladium contentProcess efficiency improvementPlatinumRefining (metallurgy)
The invention discloses a method for recycling platinum and palladium from precious metal acid solution by adopting a reducing precipitation method, and belongs to the technical field of metallurgy. The method comprises the following steps: enabling a reducing precipitation agent formed by sodium formate and sodium borohydride to react with material liquid containing platinum and palladium, so as to precipitate platinum and palladium; filtering precipitation; dissolving base metals in the precipitation by dilute sulphuric acid; further, dissolving precipitation residues containing platinum and palladium by dilute sulphuric acid and sodium chlorate; finally, obtaining chlorination liquid containing a great amount of platinum and palladium, concentrating the chlorination liquid, and refining to recycle platinum and palladium through performing the process of precipitating platinum by ammonium chloride on the chlorination liquid. According to the invention, the technology is simple and low in cost, and generates little pollution; the precipitation rate of platinum and palladium precious metals can reach over 99.9%, the platinum family metal recycling ratio is greatly improved, and the comprehensive utilization of precious metal resources is realized.
Owner:NORTHWEST NORMAL UNIVERSITY
Anticorrosive treating concentrate
InactiveUS7186354B2Stable to carryStable storageOther chemical processesSemiconductor/solid-state device manufacturingPreservativeNitrogen
According to the present invention, there is provided an anticorrosive treating concentrate usable for an exposed surface of a metal (e.g. copper or a copper alloy), containing an anticorrosive agent and a precipitation inhibitor and having a pH of 4 to 12 when used in the form of an aqueous solution, in which concentrate the anticorrosive agent is a triazole type compound and / or a derivative thereof and is contained in a concentration of 0.05 to 20% by weight and the precipitation inhibitor is a compound having at least one nitrogen atom but no metal atom in the molecule.
Owner:KANTO CHEM CO INC +1
Stirring cooking device for traditional Chinese medicinal materials
InactiveCN107334643AAvoid standingPracticalPharmaceutical product form changeEngineeringBULK ACTIVE INGREDIENT
The invention discloses a stirring type Chinese herbal medicine cooking equipment, which comprises a support seat, a support frame is connected to both sides of the upper end of the support seat, a first rack is connected to the upper end of the support frame, a first gear is meshed in the middle part of the front end of the first rack, and a first gear is engaged with the first rack. The middle part of the lower end of the first gear is connected with the stirring shaft, the right side of the upper end of the support base is connected with the driving box, the second gear is arranged inside the driving box, the lower end of the second gear is meshed with the second rack, and the left end of the second rack is connected with the right swing rod. The cooking barrel is connected to the left side of the right swing lever, the left swing lever is connected to the lower side of the left end of the cooking barrel, and the middle part of the left end of the left swing lever is covered with a return spring, and the left end of the return spring is connected to a rotating block. There is a heating ring inside the cooking barrel. The upper end of the side is connected with a hopper, and the middle part of the bottom end of the cooking barrel is connected with a discharge hopper. The present invention realizes the rotation of the stirring shaft, so that the active ingredients inside the traditional Chinese medicine can be effectively separated out, and at the same time realizes the left and right reciprocating shaking of the cooking barrel.
Owner:陈忠民
System for separating contaminants from fluids
ActiveUS9758389B2Efficient precipitationEnhance and facilitate separationWater treatment parameter controlSpecific water treatment objectivesSensor arrayParticulates
A system for separating contaminants from fluids provides a modular mobile continuously operable site configurable multi-phase filtering system having an oil water separator 100, a dwell tank 220, a waste tank 250, an electrocoagulator 120 having plural concentrically aligned perforated tubular sacrificial electrodes, a first and a parallel second particulate filter 300A, 300B, a first and parallel second step-down membrane filter 400A, 400B, an optional ultra filtration filter 500, an optional reverse osmosis filter 600, a mixing station 700 and a totalizer and sensor array 900 to analyze, filter and treat fluids by separating contaminants and particulates and adjusting chemical content to meet specifications desired which will allow the use and re-use of the filtered fluid and the separated contaminants.
Owner:ECO SQUARED SOLUTIONS
Al2O3-free lithium silicate glass composition
PendingCN107265846AEfficient precipitationImpression capsGlass shaping apparatusSilicate glassLithium metasilicate
To provide a dental lithium silicate glass composition capable of providing a dental lithium silicate glass ceramic capable of efficiently precipitating the main crystals (lithium disilicate and / or lithium metasilicate) even after heat treatment. To provide a Al2O3-free dental lithium silicate glass composition including the following components: SiO2: 60.0 to 80.0% by weight, Li2O: 10.0 to 17.0% by weight, K2O: 0.5 to 10.0% by weight, ZrO2: 0.0 to 5.0% by weight, a nucleating agent: 1.0 to 6.0% by weight, a glass stabilizer: 0.0 to 8.0% by weight and a colorant: 0.0 to 10.0% by weight.
Owner:SHOFU INC
Processing system for changing chrome tanning wastewater into resource and processing technique thereof
InactiveCN102381783APrecipitation denseEfficient precipitationWaste water treatment from animal processingMultistage water/sewage treatmentChemical reactionWastewater
The invention provides a processing system for changing chrome tanning wastewater into a resource and a processing technique thereof. The invention relates to a processing method for the chrome tanning wastewater and provides the processing system and the processing technique for changing the chrome tanning wastewater into the resource at normal temperature and pressure with low processing cost and high recycling utilization ratio. The processing system comprises a grating filter pre-settling device, a chemical reaction settling pond, a pressure filter, an acid leaching reaction pool, a filter and a liquid collecting cabin, wherein an output port of the grating filter pre-settling device is connected with an input port of the chemical reaction settling pond; the output port of the chemical reaction settling pond is connected with the input port of the acid leaching reaction pool through the pressure filter; the output port of the acid leaching reaction pool is connected with the liquid collecting cabin through the filter; a pH monitoring adjusting device is arranged on the chemical reaction settling pond; and a heating device is arranged on the acid leaching reaction pool.
Owner:HARBIN INST OF TECH +1
Wear-resistant transparent glaze, wear-resistant glazed brick and preparation method thereof
The invention discloses a wear-resistant transparent glaze that is prepared from the following raw materials in percentage by weight: 3 to 7 percent of nanoscale anorthite, 20 to 30 percent of albite,18 to 28 percent of fused quartz, 6 to 10 percent of kaolin, 40 to 50 percent of transparent frit, 0.01 to 0.5 percent of dispersing agent and 0.01 to 0.1 percent of plasticizer. By introducing special raw material components such as nanoscale anorthite, fused quartz and transparent frit, the raw material components of the glaze can play a synergistic effect in the conventional fusing and firingprocess, so a large amount of anorthite crystalline phases can be efficiently generated, and then the hardness, wear resistance and light transmission performance of the glaze are effectively and synchronously improved.
Owner:GUANGXI OCEANO CERAMICS CO LTD
Ground Milling Machine, In Particular Road Milling Machine, For Removing Ground Material, As Well As Method For Operating A Ground Milling Machine
ActiveUS20190257042A1Compact structureDust pollution is relatively highSlitting machinesRoads maintainenceRoad surfaceEngineering
Owner:BOMAG
Heavy metal chelating agent as well as preparation method and application thereof
ActiveCN109704974AImprove chelation abilityEfficient precipitationProcess efficiency improvementAmino compound preparation by condensation/addition reactionsCross-linkHeavy metal chelation
The invention relates to a heavy metal chelating agent as well as a preparation method and application thereof, the preparation method comprises the following steps: taking a polyene polyamine molecule as a raw material, carrying out unilateral protection on the end group primary amine of the polyene polyamine molecule by using di-tert-butyl dicarbonate ester, carrying out chain extender cross-linking reaction on the polyene polyamine molecule and a chain extender, then removing the unilateral protection of the cross-linked polyene polyamine, and finally, carrying out xanthan acylation reaction on the cross-linked polyene polyamine and carbon disulfide to obtain the heavy metal chelating agent. The preparation method of the heavy metal chelating agent is high in operability and simple in process, and the prepared chelating agent contains more chelating sites, has high reaction activity and high chelating performance, and can be used for efficiently precipitating heavy metals.
Owner:SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
Medium and low coal temperature separate dry distillation system and method
ActiveCN105505421AEfficient dehydrationImprove thermal distillation efficiencySpecial form destructive distillationThermodynamicsCombustion chamber
The invention provides a medium and low coal temperature separate dry distillation system and method. The dry distillation system comprises a spiral pushing medium and low temperature external heating dry distillation device and a low temperature internal heating rotary kiln dry distillation device. A spiral pushing dry distillation chamber in the spiral pushing medium and low temperature external heating dry distillation device is arranged in a combustion chamber of the spiral pushing medium and low temperature external heating dry distillation device, burned smoke in the combustion chamber is circulated back into a rotary kiln cylinder, and solid-state materials in the rotary kiln cylinder are supplied into the spiral pushing dry distillation chamber. For the first time, dry distillation of coal is divided into two or more stages according to temperature, an internal heating rotary kiln and the external heating type spiral pushing dry distillation device are combined organically to achieve dry distillation; the rotary kiln is used for performing winnowing dust removal, preheating drying and dehydration on raw coal, and the external heating type spiral pushing dry distillation device realizes a high-efficiency medium and low temperature dry distillation process and precipitation of high calorific value raw gas and a tar product; the advantages of internal and external heating dry distillation equipment are fully combined, dry distillation efficiency, heat utilization efficiency and dry distillation product quality are greatly improved in a brand new mode, and the market popularization prospect is broad.
Owner:王崇峰
Acid washing device
InactiveCN1683593ALong time operationExtended maintenance cycleWork cleaning devicesMetal rolling arrangementsFlocculationUltrasonic sensor
The pickling equipment equipped with a pickling tank 3 for performing pickling of the steel sheet 1 containing silicon by successively passing the steel sheet 1 and a circulating route 5 for circulating the pickling solution in the pickling tank 3 is provided with ultrasonic vibrator transducers 10, 14 and 18 which oscillate ultrasonic waves of different frequencies f 1, f 2, and f 3 to the pickling solution circulating in the circulating route at separation tanks 9, 13 and 17 such that the SiO2particles of the grain sizes different from each other of the respective frequencies f 1, f 2, an f 3 are removed by flocculation and settlement. Thus, SiO2particles in a pickling solution generated during pickling of various silicon steel sheets can be decreased, and long-term operation and the period of maintenance work can be prolonged and productivity is high.
Owner:PRIMETALS TECHNOLOGIES JAPAN LTD
Method for removing metal from wastewater
InactiveUS6936177B2Efficient removalAvoid corrosionSedimentation separationDifferential sedimentationLiquid wasteSolid component
An object of the present invention is to provide a method for efficiently removing a metal from wastewater formed by subjecting the liquid waste to wet combustion treatment or wet oxidation treatment, said liquid waste resulting from an acrylic acid production process.Provided is a method for removing a metal from wastewater formed by subjecting at least a part of liquid waste to wet combustion treatment or wet oxidation treatment, said liquid waste resulting from an acrylic acid production process involving the steps of forming acrylic acid through catalytic vapor phase oxidation of at least one of propane, propylene, and acrolein, and purifying the acrylic acid through distillation,wherein the method comprises the steps of:(a) removing a solid content from the wastewater;(b) removing carbonate ions and carbonate salts from the treated liquid obtained by the step (a); and(c) removing a metal from the treated liquid from the step (b).
Owner:MITSUBISHI CHEM CORP
Efficient precipitation device and process with ammonia nitrogen removal capacity
PendingCN110342684AAchieve separationAchieve reuseWater/sewage treatment by centrifugal separationWater contaminantsChemistryTreatment effect
The invention relates to an efficient precipitation device and process with ammonia nitrogen removal capacity. The whole set of precipitation device comprises a coagulation tank, a flocculation tank,an inclined plate sedimentation tank and a slime separator sequentially connected in a sewage treatment direction; a feeding hole for a coagulant and an ammonia nitrogen adsorption material is also arranged at a feeding pipe of the coagulation tank; a bottom outlet of the slime separator is further connected with a regeneration tank; the bottom of the regeneration tank is also connected with a grit-water separator; and an upper outlet of the grit-water separator returns to be connected with the regeneration tank, and a lower outlet of the grit-water separator returns to be connected to the feeding pipe of the coagulation tank. Compared with the prior art, the efficient precipitation device is good in treatment effect, easy to regulate, capable of reducing the floor area while realizing theremoval of suspended matters and ammonia nitrogen, wide in applicability and remarkable in economic benefit.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER
Purifying, condensing and storing tank for gas
ActiveCN102853249AHEPA filterEfficient precipitationPressure vesselsGas dust removalInlet valveMicrofiltration
Owner:LIUZHOU JINGYANG ENERGY SAVING TECH RES DEV
Ground Milling Machine, In Particular Road Milling Machine, For Removing Ground Material, As Well As Method For Operating A Ground Milling Machine
ActiveUS20170284038A1Avoid damageCompact structureSlitting machinesRoads maintainenceEngineeringRoad surface
The present invention relates to a ground milling machine, in particular a road milling machine, for removing ground material, comprising a machine frame having a chassis, a milling drum supported on a machine frame, and a transport device having at least one conveyor belt, which is configured for conveying removed ground material in a conveying direction away from the milling drum to a discharge point, as well as to a method for operating a ground milling machine. One aspect of the present invention is to provide an electrostatic precipitator, which reduces the dust pollution.
Owner:BOMAG
Special medicament for removing hardness ions in underground water and application thereof
ActiveCN103359835AEasy to prepareExtensive sources of raw materialsWater softeningIonCalcium carbonate
The invention provides a special medicament for removing hardness ions in underground water. The medicament comprises sodium hydroxide, powdery kaolin and polyaluminum chloride. A preparation method for the special medicament has the advantages of easiness, wide sources of raw materials and low cost; the special medicament is safe to use, can realize rapid and highly efficient precipitation of calcium carbonate and magnesium hydroxide sediments, has a fast treatment speed and a good treatment effect in treatment of hardness ions in underground water and has good application prospects.
Owner:HOHAI UNIV
Water treatment apparatus
InactiveUS20100108497A1Inhibit precipitationComprehensive performance is smallCellsSpecific water treatment objectivesElectrically conductiveFiber layer
A water softening module has a case body which includes cover members secured to their respective ends of a cylindrical case. A pair of electrodes are provided in the case body. A fibrous medium is located in contact with a water-outlet-side face of the electrodes. The fibrous medium has a stacked structure constituted of a first fiber layer and a second fiber layer, which are electrically conductive. The first fiber layer is positioned in contact with the upstream side of the second fiber layer, and the first fiber layer is positioned in contact with the downstream-side face of the electrodes. The specific surface area of the first layer is smaller than that of the second fiber layer.
Owner:SANYO ELECTRIC CO LTD
Semi-fluidized bed type Fenton oxidation wastewater treatment device
PendingCN108706786AAvoid churnThere will be no problems such as hardening and agglomerationWater treatment compoundsWater contaminantsMolecular sieveTreatment effect
The invention relates to a semi-fluidized bed type Fenton oxidation wastewater treatment device. The device is sequentially provided with a stirring-mixing region, a semi-fluidized bed reaction region, a radiation-flow settlement region, a filler reaction region and a baffling semi-range settlement region. According to the device, the semi-fluidized bed reaction region and the filler reaction region are arranged, and a Fenton catalyst and an iron-carrying 3A molecular sieve catalyst are respectively utilized as fillers; a semi-fluidized bed has high transmission efficiency, and the problem ofloss of the catalyst can be effectively avoided; and a 3A-molecular sieve filler is wide in pH application range and has efficient catalytic efficiency to degradation-resistant organic matters. The device has the advantages of simple structure, easiness in operation, good treatment effect and the like and can be conveniently arranged in each stage of the water treatment flow.
Owner:TAIZHOU UNIV
Electrolyte and secondary battery
InactiveUS20130202972A1Promote generationGet stableConductive materialOrganic electrolyte cellsDissolution reactionSolvent
A secondary battery capable of decreasing progression temperature of a precipitation-dissolution reaction of aluminum is provided. A cathode 11 and an anode 12 are separated from each other by a separator 13. An electrolyte with which the separator 13 is impregnated contains an alkyl sulfone (R1—S(═O)2—R2: each of R1 and R2 represents an alkyl group) and a solvent (having a specific dielectric constant of 20 or less) together with an aluminum salt. A content of the solvent is equal to or larger than 30 mol % and is less than 88 mol %, and a mol ratio (a content of the aluminum salt / a content of the alkyl sulfone) is equal to or larger than 4 / 5 and is less than 7 / 3.
Owner:MURATA MFG CO LTD
Mechanical method and apparatus for removing polycarprolactam dimers
The invention discloses a mechanical method for removing polycarprolactam cyclic oligomer. The method comprises the following steps: (1) cooling caprolactam concentrate which has undergone triple effect evaporative concentration and has a temperature of 110 to 130 DEG C for crystallization, and carrying out stirring with a stirrer when the temperature of the caprolactam concentrate drops to 50 to 95 DEG C; (2) prefiltering the cooled concentrate, carrying out pressurization with a pressurization device until the concentrate has a pressure of 0.4 to 0.6 MPa, and allowing the concentrate to enter into aplate and frame type filter press for press filtration so as to obtain clear liquid of the caprolactam concentrate; (3) storing the clear liquid in a clear liquid storage tank, adding the clear liquid of the caprolactam concentrate into a fresh caprolactam storage tank through a metering pump, mixing the clear liquid with fresh caprolactam, and allowing an obtained mixture to enter into a polymerization reactor. The method provided in the invention enables flow for removing polycarprolactam cyclic oligomer to be simplified and a high removal rate of annular oligomers in the caprolactam concentrate to be obtained; the apparatus in the invention has the advantages of a large filtering area, a strong capability of bearing pollutants, convenience in cleaning and low cost.
Owner:浙江华建尼龙有限公司
Internal and external heating type medium and low temperature powdered coal temperature division dry distillation system and method
ActiveCN105505422AEfficient dehydrationImprove thermal distillation efficiencyIndirect and direct heating destructive distillationSpecial form destructive distillationProcess engineeringCombustion chamber
The invention discloses an internal and external heating type medium and low temperature powdered coal temperature division dry distillation system and method. The system comprises a spiral pushing medium and low temperature external heating dry distillation device and a low temperature internal heating rotary kiln dry distillation device, wherein a spiral pushing dry distillation chamber in the spiral pushing medium and low temperature external heating dry distillation device is arranged in a combustion chamber of the spiral pushing medium and low temperature external heating dry distillation device, combustion smoke in the combustion chamber is directly supplied to the interior of a rotary kiln cylinder, and solid materials in the rotary kiln cylinder are supplied to the interior of the spiral pushing dry distillation chamber. Dry distillation of coal is divided into two or more phases according to temperature and is achieved through organic combination of the internal heating rotary kiln dry distillation device and the spiral pushing external heating dry distillation device, winnowing and dust removal, preheating and drying and dehydration are conducted on raw coal by means of a rotary kiln, high-efficiency medium and low temperature dry distillation and high-calorific-value raw gas and tar product precipitation are achieved by means of the spiral pushing external heating dry distillation device, the advantages of the internal heating dry distillation device and the external heating dry distillation are fully combined, dry distillation efficiency, heat utilization efficiency and the quality of dry distillation products are improved greatly, and marketing prospects are broad.
Owner:王崇峰
Salen complexes with dianionic counterions
ActiveUS9403861B2EffectiveImprove isolationCobalt organic compoundsGroup 6/16 organic compounds without C-metal linkagesCounterionMedicinal chemistry
Owner:SAUDI ARAMCO TECH CO
Method for separating and extracting rhenium from rhenium-molybdenum mixed solution and co-producing ferromolybdenum alloy
ActiveCN112662874AEasy to separateHigh recovery rateProcess efficiency improvementRheniumPhysical chemistry
The invention discloses a method for separating and extracting rhenium from a rhenium-molybdenum mixed solution and co-producing a ferromolybdenum alloy. The method comprises the following steps of adding a molybdic acid radical precipitator into the rhenium-molybdenum mixed solution, precipitating molybdic acid radical under a weakly acidic condition, and carrying out solid-liquid separation to obtain molybdenum-rich slag and a rhenium-containing solution; adding a rhenic acid radical precipitator and a flocculant into the rhenium-containing solution, flocculating and precipitating rhenic acid radical, and carrying out solid-liquid separation to obtain rhenium-rich slag; and carrying out high-temperature drying and reduction roasting on the molybdenum-rich slag to obtain the ferromolybdenum alloy. According to the method, the selective separation effect on molybdenum and rhenium is good, the process is simple, the application range is wide, the cost is low, and the method is particularly suitable for rhenium-molybdenum separation and recycle in a solution with low molybdenum content and high rhenium content.
Owner:ZHENGZHOU UNIV
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