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82results about How to "Oxidation achieved" patented technology
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Quadruple effect catalyst of diesel tail gas and preparation method and application of quadruple effect catalyst
ActiveCN102188971AIncrease storage capacityPromote combustionDispersed particle separationMetal/metal-oxides/metal-hydroxide catalystsParticulatesPotassium
The invention discloses a quadruple effect catalyst of diesel tail gas. The catalyst consists of carrier magnesium-aluminium (Mg-Al) hydrotalcite composite oxide, potassium (K) and noble metal, wherein the K and the noble metal are loaded on the carrier Mg-Al hydrotalcite composite oxide; the noble metal is palladium (Pd), platinum (Pt) or rhodium (Rh); the load capacity of the K is 7 to 10 weight percent; and the load capacity of the noble metal is 1 to 2 weight percent. Meanwhile, the invention also discloses a preparation method and application of the catalyst. The catalyst is simple in preparation and easy to operate; the prepared catalyst can remove four main pollutants, namely carbon smoke particles (PM), nitrogen oxide (NOx), carbon oxide (CO) and unburned hydrocarbons (HC); and after being coated on a diesel particle filter, the catalyst can be directly applied to post-treatment of the diesel tail gas, has a good treatment effect and is applied to industrial promotion.
Owner:UNIV OF JINAN
Flue gas desulfurization and denitration device and method
ActiveCN109718653AHigh gas velocityOxidation achievedDispersed particle separationChlorine dioxideFlue gas
The invention discloses a flue gas desulfurization and denitration device and method. The device comprises: a desulfurization container, the bottom of which is equipped with a desulfurization liquid material storage area, above which a flue gas inlet is disposed, with a flue gas washing and desulfurization structure being arranged above the flue gas inlet; a denitration container, the bottom of which is equipped with a denitration liquid material storage area, above which a flue gas washing and denitration structure is arranged, with a separation structure for removing solid particles and liquid drops being disposed above the flue gas washing and denitration structure, and a gas outlet being disposed at the top of the denitration container; an oxidization pipeline for communicating the desulfurization container and the denitration container; an atomization spray structure that is disposed in the oxidization pipeline and capable of providing structure connection together with chlorine dioxide, with the chlorine dioxide mist sprayed by the atomization spray structure being mixed with the flue gas in the oxidization pipeline. The flue gas desulfurization and denitration device and method provided by the invention can realize high efficiency and high utilization oxidation of ClO2 to NO, are safe and convenient to operate, and are convenient for industrial application.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
High-dryness sewage sludge treatment method
InactiveCN105819638AAchieve high dryness dehydrationFavorable effect follow-up treatmentSludge treatment by de-watering/drying/thickeningSludge treatment by oxidationSpiral bladeSewage
The invention discloses a high-dryness sewage sludge treatment method. According to the method, an active gas generator introduces active gas into a spiral shaft, sewage sludge enters a spiral filtering apparatus, and in the front section of the spiral filtering apparatus, sewage sludge undergoes dehydration under the action of the gravity of sewage sludge; the spiral shaft rotates to drive sewage sludge to move forward, and in the rear section of the spiral filtering apparatus, sewage sludge is extruded between spiral blades and a spiral drum so as to realize spiral dehydration; sewage sludge having undergone spiral dehydration enters an oxidation drum and further undergoes full oxidation under the action of active gas; and sewage sludge from the oxidation drum enters an ultrahigh-voltage electro-osmosis dehydration apparatus and undergoes electro-osmosis and ultrahigh voltage coupled dehydration so as to obtain high-dryness sludge. The high-dryness sewage sludge treatment method provided by the invention has a wide application scope and low energy consumption, is beneficial for sludge reduction and enables treated sludge to have low water content.
Owner:CHINA JILIANG UNIV
Polyacid catalyst wrapped by cadmium-based polypyridine macro ring and preparation method thereof
InactiveCN104162453AImprove performanceImprove catalytic performanceOrganic chemistryOrganic-compounds/hydrides/coordination-complexes catalystsAcetonitrileCadmium Cation
The invention discloses a polyacid catalyst wrapped by cadmium-based polypyridine macro ring and a preparation method thereof; according to the method, the cadmium-based polypyridine macro ring and polyoxometallate are respectively dissolved in acetonitrile solution, then mutual dripped slowly, stood, and precipitated to obtain the needed catalyst. The catalyst is used in epoxidation of cyclooctene, the conversion rate is as high as 95.11%, and the selectivity is over 95.72%. The catalyst provided by the invention not only retains excellent catalytic performances of the polyacid componnet, can realize the catalyst recovery, improves the shortcoming that traditional polyacid catalysts cannot be recycled, and has the advantages of simple preparation process and high yield.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Polydopamine-coated carbon nanotube enhancement ascorbic acid/glucose fuel cell
ActiveCN107768692AImprove bindingHigh catalytic activityCell electrodesFinal product manufactureCarbon nanotubeDifferential pulse voltammetry
The invention belongs to the technical field of a fuel cell, and discloses a polydopamine-coated carbon nanotube enhancement ascorbic acid / glucose fuel cell. Dopamine is subjected to electrochemical polymerization on a carbon nanotube electrode by adopting a continuous differentiating pulse voltammetry, and an ordered polydopamine / carbon nanotube electrode is prepared and obtained; and next, by taking the polydopamine / carbon nanotubes as an electric catalyst of a negative electrode and a positive electrode, electrocatalytic oxidation of a low-cost non-enzymatic catalyst in a neutral environment on ascorbic acid and glucose is realized, and the high-performance ascorbic acid / glucose fuel cell is researched; and the established fuel cell has the advantages of low cost, environment protectionand safety, high biological compatibility, high power density and the like.
Owner:SOUTH CHINA NORMAL UNIVERSITY
High-dryness sewage sludge treatment apparatus
InactiveCN105819637AAchieve high dryness dehydrationFavorable effect follow-up treatmentSludge treatment by de-watering/drying/thickeningSludge treatment by oxidationElectricitySpiral blade
The invention discloses a high-dryness sewage sludge treatment apparatus, comprising an active gas generator (1), a spiral filtering apparatus (2), an oxidation drum (3) and an ultrahigh-voltage electro-osmosis dehydration apparatus (4), wherein the spiral filtering apparatus (2) comprises a spiral shaft (2.1), spiral blades (2.2) and a spiral drum (2.3); the spiral shaft (2.1) is installed in the spiral drum (2.3); the spiral blades (2.2) are arranged on the spiral shaft (2.1) and arrayed between the spiral shaft and the inner wall of the spiral drum; the spiral shaft is hollow; an end inlet of the spiral shaft is communicated with the active gas generator; the wall of the spiral shaft is provided with a vent allowing active gas to enter; the tail end of the spiral drum (2.3) is connected with the oxidation drum (3); the spiral filtering apparatus (2) is of a double-spiral structure; and an outlet of the oxidation drum (3) is communicated with the ultrahigh-voltage electro-osmosis dehydration apparatus (4). The high-dryness sewage sludge treatment apparatus provided by the invention has a wide application scope and low energy consumption, is beneficial for sludge reduction and enables treated sludge to have low water content.
Owner:CHINA JILIANG UNIV
Preparation method of FeOOH/ MnO2@ diatomite composite material
ActiveCN109499523ALarge specific surface areaLarge adsorption capacityOther chemical processesWater contaminantsElectronPotassium permanganate
The invention discloses a preparation method of a FeOOH / MnO2@ diatomite composite material. The preparation method comprises the steps of adding FeCl3 into diatomite suspension liquid, adjusting thepH value, and then adding sodium dodecylbenzenesulfonate; then, slowly dropwise adding an ammonium manganese composite solution prepared by dissolving ammonium persulfate and potassium permanganate indeionized water, stirring and adding urea to prepare a diatomite composite solution; enabling the diatomite composite solution to be subjected to a hydrothermal reaction so as to obtain the diatomitecomposite material. The nano-flowered linear FeOOH / MnO2@ diatomite composite material is deposited on a diatomite algae plate, so that the absorption sensitivity of diatomite matrix to heavy metal arsenic ions is improved, and the absorption capacity of the arsenic ions is significantly increased while the specific surface area is enlarged; by adding activated carbon powder, iron and carbon electrodes are formed by iron oxides on the surface of diatomite, so that electron transport is facilitated, the oxidation of the trivalent arsenic ions is realized, and the toxicity of the trivalent arsenic ions is further reduced; the preparation method has great theoretical and practical significance.
Owner:BEIJING UNIV OF TECH +1
VOCs catalyst for synergistic catalytic oxidation of ultraviolet-light self-excited ozone and preparation method and application thereof
InactiveCN109364913AEfficient processingReduce concentrationGas treatmentDispersed particle separationIonMuffle furnace
The invention relates to a VOCs catalyst for synergistic catalytic oxidation of ultraviolet-light self-excited ozone and a preparation method and application thereof. Alkali-free wax-free glass fiberis taken and cooked with a nitric acid solution, then is washed with ionized water to be neutral, and is dried; tetrabutyl titanate is used as a precursor and is mixed with anhydrous ethanol to obtaina solution A; deionized water, zirconium oxychloride and acetic acid are dissolved in ethanol, and a solution B is obtained by stirring; the solution A is evenly stirred and then the solution B is added to get a light yellow precursor C; the glass fiber is soaked in the light yellow precursor C, drying is performed after impregnation, ageing is performed at room temperature, vacuum drying is executed in a vaccum drying oven, roasting is carried out in a muffle furnace, and natural cooling is executed to room temperature to obtain Zr-Ti supported glass fiber; a solution D is obtained by mixingthe manganese nitrate, ethanol, acetic acid and deionized water; the Zr-Ti supported glass fiber is impregnated in solution D, aged, dried and roasted to obtain the VOCs catalyst for synergistic catalytic oxidation of ultraviolet-light self-excited ozone.
Owner:NANJING UNIV OF TECH +1
Method for preparing calcium sulfate whiskers from sintering flue gas semidry method desulfurization ash based on acid oxidation
ActiveCN107400929AChange React InterfaceImprove oxidation efficiencyPolycrystalline material growthFrom normal temperature solutionsResource utilizationSlurry
The invention discloses a method for preparing calcium sulfate whiskers from sintering flue gas semidry method desulfurization ash based on acid oxidation and belongs to the field of desulfurization ash resource utilization. An oxidizing aid and water are mixed to form an oxidizing aid solution, oxygen-containing gas is blown into a mixed solution of desulfurization ash and water, the oxidizing aid solution is uniformly injected to the bottom of the desulfurization ash mixed solution, the oxidizing aid comprises an acid aid with the pKa1 acidity coefficient between pKal acidity coefficients of sulphurous acid and sulfuric acid, oxidized desulfurization ash is mixed and emulsified to form slurry, and the calcium sulfate whiskers are prepared through a hydrothermal reaction of the slurry. The purity of calcium sulfate is increased by changing sufficient oxidation modification of desulfurization ash with the reaction interface in the desulfurization ash oxidation process, the theoretical strength of the prepared calcium sulfate whiskers is 0.02 E-0.05 E, the surface finish is higher, and the performance of the calcium sulfate whiskers is greatly improved.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Steel belt lead-bath quenching and backfire product line decarburization technique and device thereof
InactiveCN101054620AImprove plasticityReduce plasticityFurnace typesHeat treatment bathsProduction lineSurface layer
A surface decarburation technology in the process of metal strip plumbum quenching-tempering and apparatus are provided. The process comprises humidifying the protective gas to make the protective gas contain a certain vapor in the process of metal strip continuous quenching and heating, doing an oxidation reaction of oxygen in the hot vapor and carbon in the metal strip surface layer to obtain the objective of metal strip surface decarburation and the ecarburation layer about 5 mum thickness on the metal strip surface and improve the metal strip plastic nature obviously. Meanwhile, there has no distinct oxidation on the metal strip surface. The metal strip by decarburation treatment will not breakdown or appears crack by 180 DEG bending so as to effectively improve the rate of finished products and quality of the metal strip.
Owner:奉化市光亮热处理电炉有限公司
Preparation method of catalyst for ultraviolet catalytic wet-type oxidation
InactiveCN109317151AThe synthesis process is simpleHigh catalytic efficiencyWater/sewage treatment by irradiationCatalyst activation/preparationChemistrySol-gel
The invention relates to a preparation method of a catalyst for ultraviolet catalytic wet-type oxidation. The catalyst is a LaCoO3 perovskite catalyst formed by adopting La(NO3)3 and Co(NO3)2 as precursors and adopting citric acid as a complexing agent in a high-temperature calcining way by virtue of a sol-gel method. The catalyst can be sufficiently synergistic with the ultraviolet, under an acidic condition, the hydrogen peroxide is used as an oxidant to efficiently catalyze the oxidation of coal chemical waste water membrane concentrated solution at relatively low temperature and pressure,and the catalyst is controllable in structure, good in heat stability, recyclable, and high in environmental and economical benefits.
Owner:NANJING UNIV OF TECH
Device and method for oxidizing modification of sintering semi-dry desulfurization ash
ActiveCN107399753AChange React InterfaceImprove oxidation efficiencyCalcium/strontium/barium sulfatesResource utilizationOxygen
The invention discloses a device and a method for oxidizing modification of sintering semi-dry desulfurization ash and belongs to the field of resource utilization of desulfurization ash. An oxidizing aid injection unit comprises an oxidizing aid container and a liquid pipeline which are communicated with each other and is used for injecting an oxidizing aid solution into a desulfurization ash mixed solution, when oxygen-containing gas is blown into the desulfurization ash and water mixed solution, the oxidizing aid and water are mixed under the joint function of a reaction unit, a gas supply unit and the oxidizing aid injection unit, and an oxidizing aid solution is obtained; the oxidizing aid solution is uniformly injected to the bottom of the desulfurization ash mixed solution; the oxidizing aid comprises an acid aid with the pKa1 acidity coefficient between pKal acidity coefficients of sulfurous acid and sulfuric acid. With the adoption of the method for oxidizing modification, the reaction interface in the desulfurization ash oxidizing process is changed, the oxidizing efficiency of desulfurization ash is improved, and a foundation is laid for resource utilization of the desulfurization ash.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Textile chemical dyeing and finishing equipment
InactiveCN111038065APrevent oxidationOxidation achievedLaminationLamination apparatusMechanical engineeringDyeing
The invention discloses textile chemical dyeing and finishing equipment, which comprises a box body, wherein an open inner cavity is formed in the box body, sliding inner cavities symmetrically arranged front and back are formed in the rear end wall of the inner cavity in a communicating mode, a rear side cavity is formed in the rear end wall of the sliding inner cavity in the rear side in a communicating manner, the sliding inner cavities, the rear side cavity and the inner cavity are internally provided with movable extrusion devices capable of being adjusted left and right and extruding a textile cloth, release devices for releasing a protective film are arranged on the two sides of the box body, a bottom coiling device for further coiling the textile cloth attached with the protectivefilm is fixedly arranged in the lower end wall of the inner cavity, and the upper end surface of the box body is provided with a leading-in device for leading an textile cloth in an external space into the equipment. The equipment has smart structure, can protect a textile cloth and prevent the textile cloth from being oxidized compared with the equipment in the prior art, has the improved workingefficiency through the smart structure of the equipment, and has the prolonged service life.
Owner:储小英
Method for oxidizing thioether
ActiveCN111484430AOxidation achievedHigh selectivityPhysical/chemical process catalystsOrganic chemistryPtru catalystTitanium oxide
The invention relates to a method for oxidizing thioether. The method comprises the step of making thioether in contact with peroxide for reaction in the presence of a catalyst, wherein the catalyst is a catalytic composite material containing carbon dots and titanium oxide. The catalytic composite material containing carbon dots and titanium oxide is used as the catalyst to catalyze the oxidationreaction of thioether, the thioether can be oxidized under mild conditions, the raw material conversion rate and the target product selectivity are high, meanwhile, the effective utilization rate ofperoxide can be remarkably increased, and the production cost is reduced.
Owner:CHINA PETROLEUM & CHEM CORP +1
High-dryness sewage sludge treatment system
InactiveCN105819636AAchieve high dryness dehydrationFavorable effect follow-up treatmentSludge treatment by de-watering/drying/thickeningSludge treatment by oxidationElectricityUltra high pressure
The invention discloses a high-dryness sewage sludge treatment system, comprising an active gas generator (1), a spiral filtering apparatus (2), an oxidation drum (3) and an ultrahigh-voltage electro-osmosis dehydration apparatus (4), wherein the spiral filtering apparatus (2) comprises a spiral shaft (2.1), spiral blades (2.2) and a spiral drum (2.3); the spiral shaft (2.1) is installed in the spiral drum (2.3); the spiral blades (2.2) are arranged on the spiral shaft (2.1) and arrayed between the spiral shaft (2.1) and the inner wall of the spiral drum; the spiral shaft (2.1) is hollow; an end inlet of the spiral shaft is communicated with the active gas generator; the wall of the spiral shaft is provided with a vent allowing active gas to enter; the tail end of the spiral drum (2.3) is connected with the oxidation drum (3); and an outlet of the oxidation drum (3) is communicated with the ultrahigh-voltage electro-osmosis dehydration apparatus (4). The high-dryness sewage sludge treatment system provided by the invention has a wide application scope and low energy consumption, is beneficial for sludge reduction and enables treated sludge to have low water content.
Owner:CHINA JILIANG UNIV
Coal mine gas regenerative oxidation method
ActiveCN113375175AImprove securityOxidation achievedInternal combustion piston enginesHeat storage plantsMining engineeringProcess engineering
The invention provides a coal mine gas regenerative oxidation method, and belongs to the technical field of coal mine gas utilization. The coal mine gas with the concentration lower than 30% is adjusted to 1.2%-3%, the coal mine gas is fed into a regenerative oxidation device, and regenerative oxidation of ultra-low-concentration gas is achieved by adjusting the flow rate of the gas in the regenerative oxidation device. The method has the advantages of high safety, high reliability and high economical efficiency.
Owner:BEIJING ZHONGYUAN BOZHI ENERGY SAVING TECH CO LTD
Method of extracting myoglobin from beef
InactiveCN110105445AEasy extractionEnsure structural stabilityHaemoglobins/myoglobinsPeptide preparation methodsFiltrationGlycerol
The invention provides a method of extracting myoglobin from beef. The method includes the steps of adding a Tris-HCl mixed buffer solution to a beef meat sample, homogenizing, standing, centrifuging,adding (NH4)2SO4 and standing, centrifuging, adding a Tris-HCl buffer solution b, performing dialysis, and eluting with a NaCl mixed solution in a chromatography column to obtain the myoglobin in thebeef. According to the method, the pH value of the Tris-HCl mixed buffer solution, the extraction time and the saturation of the myoglobin salt precipitation solution are optimized to increase the extraction amount of myoglobin; the Tris-HCl mixed buffer solution contains glycerin and dithiothreitol, the glycerin maintains the structural stability of the myoglobin and facilitates rapid precipitation, and the dithiothreitol maintains the reductive and biological activity of the myoglobin; the solid (NH4)2SO4 is added for fractional salt precipitation to increase the purity of the myoglobin, the temperature is kept at 4 DEG C to prevent degeneration and oxidation of the myoglobin, residual salt ions and other small molecular proteins can be effectively removed through the dialysis to improve the purity of the myoglobin, and the separation by gel filtration chromatography carried out at last does not destroy the structure and function of the myoglobin.
Owner:甘肃省农业科学院农产品贮藏加工研究所
External circulation type electrochemical sewage treatment plant deodorizing system and method
ActiveCN107890758AAchieve separationImprove operational flexibilityGas treatmentDispersed particle separationPower control systemEngineering
The invention discloses an external circulation type electrochemical sewage treatment plant deodorization system. The system comprises an odor tank (1), a gas-collecting hood (2), an induced draft fan(3), an absorption reaction tower (4), an electrochemical oxidation unit (5) and a power supply control system (6); a treating method comprises the steps that firstly odor is collected by the gas-collecting hood (2), and then induced into the absorption reaction tower (4) by the induced draft fan (3); an odor absorption zone (406), a baffling mixing zone (407), a regeneration reaction zone (408),a precipitation zone (409) and absorption liquid (410) are arranged inside the odor absorption zone (4); the odor is fully absorbed in the absorption liquid (410), and final oxidation of the odor andregeneration of the adsorption liquid are achieved in the electrochemical oxidation unit (5); sediment and concentrated liquid generated by the absorption reaction tower (4) are periodically discharged from a discharge port (402) and the odor is treated by the absorption liquid and discharged from an air outlet (404). According to the external circulation type electrochemical sewage treatment plant deodorizing system and the method, oxidative removal of odor pollutant components and recycling regeneration of the absorption liquid are simultaneously achieved, thereby saving operating costs.
Owner:CNOOC TIANJIN CHEM RES & DESIGN INST +2
Multistage dehydration method for gaseous oxidation sewage sludge
InactiveCN105819640AAchieve high dryness dehydrationWide application range of moisture contentSludge treatment by de-watering/drying/thickeningSludge treatment by oxidationSpiral bladeSludge
The invention discloses a multistage dehydration method for gaseous oxidation sewage sludge. The multistage dehydration method mainly uses an apparatus comprising an active gas generator (1), a spiral filtering apparatus (2) and an oxidation drum (3), wherein the spiral filtering apparatus (2) comprises a spiral shaft (2.1), spiral blades (2.2) and a spiral drum (2.3); the spiral shaft (2.1) is installed in the spiral drum (2.3); the spiral blades (2.2) are arranged on the spiral shaft (2.1) and arrayed between the spiral shaft and the inner wall of the spiral drum; the spiral shaft is hollow; an end inlet of the spiral shaft is communicated with the active gas generator; the wall of the spiral shaft is provided with a vent allowing active gas to enter; and the tail end of the spiral drum (2.3) is connected with the oxidation drum (3). The multistage dehydration method provided by the invention has a wide application scope and low energy consumption, is beneficial for sludge reduction and enables treated sludge to have low water content.
Owner:CHINA JILIANG UNIV
An Oxygen Assistant for Oxidation of Sinter Flue Gas Semi-dry Desulfurization Ash
ActiveCN107399754BChange React InterfaceImprove oxidation efficiencyCalcium/strontium/barium sulfatesOxalateCalcium sulfite
The invention discloses a pro-oxygenic agent for oxidation of semi-dry desulfurization ash from sintering flue gas, and belongs to the field of desulfurization ash recycling. The pro-oxygenic agent for oxidation of the semi-dry desulfurization ash from the sintering flue gas contains an acidic aid, and the pKa1 acidity coefficient of the acidic aid is between the pKa1 acidity coefficient of sulfurous acid and the pKa1 acidity coefficient of sulfuric acid. The pro-oxygenic agent is used for oxidizing calcium sulfite in the desulfurization ash. The acidic aid is easily dissolved in water, the pKa1 acidity coefficient of the acidic aid in water at 25 DEG C is 1.00-1.89, and the acidity aid is oxalic acid or dichloroacetic acid or a combination of the two. According to the pro-oxygenic agent, the reaction interface in the process of desulfurization ash oxidation is changed, so that oxidation efficiency of the desulfurization ash can be improved, oxidation of the desulfurization ash in an open reactor is realized, escape of SO2 is avoided, and a foundation is laid for recycling of the desulfurization ash.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Method for chemically inducing osmium to be oxidized through static type ultraviolet light and reaction device
InactiveCN102519765ARealize analysisAvoid pollutionPreparing sample for investigationMaterial analysis by electric/magnetic meansOsmium tetroxideUltraviolet lights
The invention discloses a method for chemically inducing osmium to be oxidized through static type ultraviolet light and a reaction device. The method comprises the following steps of: introducing a to-be-detected solution sample containing osmium into a sample reaction quartz tube, irradiating the sample through ultraviolet light, and inducing osmium in the sample to be oxidized to generate osmium tetroxide, so as to form an osmium tetroxide solution. The osmium tetroxide solution obtained by using the method is measured by directly using ICP-OES (Inductively Coupled Plasma-Optical Emission Spectroscopy) or ICP-MS (Inductively Coupled Plasma-Mass Spectrometry), so that an osmium signal can be obtained; or osmium tetroxide is measured by using the ICP-MS or N-TIMS (Thermal Ionization Mass Spectrometry) after purifying osmium tetroxide in the solution by using an extraction or distillation method, so that the osmium signal can be obtained. The reaction device provided by the invention at least comprises a cylindrical reaction cavity body and the reaction quartz tube positioned in the middle part of the reaction cavity body. 2-8 ultraviolet lamps are arranged on the periphery of the reaction quartz tube in an encircling manner. The method and the reaction device disclosed by the invention have the advantages that: the method is simpler; any oxidization and reduction reagent is not required; loss of osmium in the sample and pollution caused by osmium in a pre-treatment process are reduced; the sensitivity is relatively higher; compared with the traditional atomization sample introduction, the sample can be introduced more effectively; and the detection limit is lower.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Method of oxidizing thioether
ActiveCN111763161AOxidation achievedHigh selectivityOrganic chemistryOrganic compound preparationPtru catalystCombinatorial chemistry
The present disclosure relates to a method of oxidizing thioether, the method comprising contacting thioether with a peroxide in the presence of a catalyst to react, the catalyst containing a modifiednanocarbon-based material. The modified nano carbon-based material is used as the catalyst to catalyze the oxidation reaction of thioether, so that the thioether can be oxidized under mild conditions; the raw material conversion rate and the target product selectivity are high, meanwhile, the effective utilization rate of peroxide can be remarkably increased, and the production cost is reduced.
Owner:CHINA PETROLEUM & CHEM CORP +1
Preparation method of hydrophobic antibacterial ceramic membrane
InactiveCN112679230AVisible light catalytic effect is goodImprove antibacterial propertiesAntifouling/underwater paintsPaints with biocidesMicroorganismSuspended matter
The invention discloses a preparation method of a hydrophobic antibacterial ceramic membrane. The preparation method comprises the following steps: S1, cleaning a ceramic membrane; S2, preparing a cuprous oxide / fluorosilicone modified hydrophobic antibacterial modification solution; S3, putting the ceramic membrane obtained in the step S1 into the modified hydrophobic antibacterial modification solution obtained in the step S2, dipping and adsorbing for 3-5 minutes, and lifting upwards at the speed of 750-1000 [mu]m / s, so as to enable the hydrophobic antibacterial modification solution to flow out from one end of the ceramic membrane; and S4, drying and curing the ceramic membrane obtained in the S3 at the temperature of 40-50 DEG C to obtain the hydrophobic antibacterial ceramic membrane. The cuprous oxide / fluorosilicone modified hydrophobic antibacterial modification solution is used for surface treatment of the ceramic membrane for the first time, so that the ceramic membrane is endowed with excellent hydrophobic, oleophobic, antifouling and antibacterial properties; the aggregation amount of organic suspended matters, colloids, microorganisms and the like on membrane pore passages or the surface of the membrane is effectively reduced.
Owner:蚌埠泰鑫材料技术有限公司
Efficient waste gas washing tower
InactiveCN102836632ACompact structureNo accumulationDispersed particle separationHigh concentrationElectrolysis
The invention provides an efficient waste gas washing tower, which comprises three independent deodorizing devices, wherein a first-grade deodorizing device, a second-grade deodorizing device and a third-grade deodorizing device are arranged from bottom to top; an air outlet is positioned above the third-grade deodorizing device; and a fan is connected to the first-grade deodorizing device through a pipeline. The efficient waste gas washing tower has the advantages and beneficial effects that: direct and indirect oxidation reactions are performed through electrolysis, so that acid, alkaline and neutral malodorous substances are oxidized completely or to the maximum extent. A layer separation concept is introduced into a single washing tower, malodorous components of different types can be removed simultaneously, running at each section is independent and is not interfered mutually, the structure is compact, and the sewage treatment pressure can be lowered; the running cost is low; different combination ways can be selected according to the types of pollution substances; particularly, high-concentration malodorous substances are treated effectively; and selective running can be performed according to the types of malodorous substances and the variation of concentration, and running parameters can be changed at any time.
Owner:天津莱特化工有限公司
Pro-oxygenic agent for oxidation of semi-dry desulfurization ash from sintering flue gas
ActiveCN107399754AChange React InterfaceImprove oxidation efficiencyCalcium/strontium/barium sulfatesOxalateCalcium sulfite
The invention discloses a pro-oxygenic agent for oxidation of semi-dry desulfurization ash from sintering flue gas, and belongs to the field of desulfurization ash recycling. The pro-oxygenic agent for oxidation of the semi-dry desulfurization ash from the sintering flue gas contains an acidic aid, and the pKa1 acidity coefficient of the acidic aid is between the pKa1 acidity coefficient of sulfurous acid and the pKa1 acidity coefficient of sulfuric acid. The pro-oxygenic agent is used for oxidizing calcium sulfite in the desulfurization ash. The acidic aid is easily dissolved in water, the pKa1 acidity coefficient of the acidic aid in water at 25 DEG C is 1.00-1.89, and the acidity aid is oxalic acid or dichloroacetic acid or a combination of the two. According to the pro-oxygenic agent, the reaction interface in the process of desulfurization ash oxidation is changed, so that oxidation efficiency of the desulfurization ash can be improved, oxidation of the desulfurization ash in an open reactor is realized, escape of SO2 is avoided, and a foundation is laid for recycling of the desulfurization ash.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Oxidization-preventing device of curved glass forming mould and curved glass forming machine
PendingCN108658435AGuarantee molding qualityPrevent the entry of oxygenGlass reforming apparatusGlass formingNitrogen gas
The invention provides an oxidization-preventing device of a curved glass forming mould and a curved glass forming machine, and relates to the technical field of curved glass processing. The oxidization-preventing device of the curved glass forming mould comprises a heat-insulating box body, a communication pipeline and a nitrogen gas tank, wherein a sealed cavity for placing the mould is arrangedin the heat-insulating box body; the heat-insulating box body is used for isolating the sealed cavity from the outside; a pipeline joint which is communicated with the sealed cavity is arranged on the heat-insulating box body; one end of the communication pipeline is connected with the pipeline joint, and the other end of the communication pipeline is connected with the nitrogen gas tank for leading nitrogen gas in the nitrogen gas tank into the sealed cavity. The oxidization-preventing device solves the technical problem that a glass heating and forming room is filled up with air and is un-tight in sealing in the prior art. The heat-insulating box body provided by the invention realizes sealing on the sealed cavity; and the nitrogen gas is lead in, so that discharge of oxygen gas in thesealed cavity is realized.
Owner:BOZHON PRECISION IND TECH CO LTD
Biological catalysis system for oxidizing phenolic compound and application thereof
The invention belongs to the technical field of bioengineering and specifically relates to a biological catalysis system for oxidizing a phenolic compound and an application thereof. The biological catalysis system for oxidizing the phenolic compound at varying degrees is CreH, CreI, CreJ, CreE, CreF, CreD or a functional equivalent of the enzymes. Meanwhile, the added CreC and CreG can enhance the oxidizing process of the phenolic compound. The biological catalysis system provided by the invention can widely and efficiently oxidize various phenolic compounds and has ultrahigh application potential and economic value in the fields of biochemical engineering and so on.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI +1
Metal organic framework molecular material of electron-rich system and application thereof in photocatalytic reduction of heavy metal ions
ActiveCN111004397AEfficient CatalysisWith n-type semiconductor characteristicsWater/sewage treatment by irradiationWater treatment compoundsDimethyl formamidePhoto catalysis
The invention relates to a novel metal organic framework molecular material of an electron-rich system. The molecular formula of the metal organic framework molecular material is C27H21CdN9O7, the chemical formula of the metal organic framework molecular material is [Cd(TIPA)(NO3)2].H2O, and the metal organic framework molecular material is called Cd-TIPA (TIPA=tris-(4-imidazolylphenyl) amine) forshort. The compound belongs to a monoclinic system and a C2 space group, and the topological structure is a utp type. The synthesis method specifically comprises the following steps: uniformly mixingCd(NO3)2.6H2O and TIPA in a mixed solvent of distilled water and N,N-dimethyl formamide, then transferring the mixture into a reaction kettle to react for 70-80 hours at 90-100 DEG C, cooling to a room temperature, separating out crystals, washing and drying to obtain Cd-TIPA. The novel metal organic framework molecular material can be used as a photocatalyst for catalytic reduction of heavy metal ions, in particular, Cr (VI) and Mn (VII).
Owner:HENAN UNIVERSITY
Oxidation production system
ActiveCN107176453AOxidation achievedSave spaceProcess efficiency improvementConveyor partsProcess engineeringChain link
The embodiment of the invention discloses an oxidation production system comprising an oxidation production line and an empty beam return system which are arranged linearly. The oxidation production line comprises an upper row module, an oxidation processing module and a lower row module which are arranged on the same straight line. An empty beam return module is connected with the upper row module and the lower row module and is used for returning an empty beam detached by the lower row module to the upper row module. According to the oxidation production system, through a linear automatic opening and clamping system, an empty beam return rotation system and a chain return system which are arranged sequentially, return of a large beam and seamless connection of an upper row and a lower row are achieved, opening, clamping and return of the large beam are all operated automatically and circularly, the workshop environment is improved, production safety is ensured, the occupied space is small, and benefits produced by the unit area of the production line are increased.
Owner:GUANGDONG JMA ALUMINUM PROFILE FACTORY GRP +1
A flue gas desulfurization and denitrification device and method
ActiveCN109718653BHigh gas velocityOxidation achievedDispersed particle separationThermodynamicsChlorine dioxide
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
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