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31results about How to "Give full play to the adsorption effect" patented technology
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System for treating heavy metal wastewater
InactiveCN102503030AGive full play to the adsorption effectEasy to handleWater contaminantsMultistage water/sewage treatmentAbsorption columnSorbent
The invention discloses a system for treating heavy metal wastewater. The system comprises an aeration pond, a neutralization pond, a flocculation pond, a thickening pond, a mechanical filtering tank, an absorption column, and functional wetland which are connected sequentially, and also comprises a ferric salt feeding system and a sludge backflow system. The concentration of Fe<3+> in wastewateris improved by aerating and feeding ferric salt, and the concentration of lead, arsenic and cadmium in a solution is reduced by using a Fe<3+> co-precipitation effect, and an adsorption effect of active iron hydroxide; by backflow of sludge, the feeding amount of lime is reduced by 5 to 10 percent, and the water treatment capacity is improved by 1 to 3 times; a high-flux large-aperture resin loaded with ferric hydroxide is used as adsorbent which has a strong effect of adsorbing the lead, arsenic and cadmium in wastewater, and effluent meets the requirement of V-grade water body of 'environmental quality standard of surface water' (GB3838-2002); and the functional wetland fully exerts the adsorption effect of filler on heavy meal, and an enrichment effect of plant, and the effluent reaches the requirement of III-grade water body.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)
Compound refined diatomite sewage dephosphorization agent
ActiveCN102976458AImprove dephosphorization efficiencyGive full play to the adsorption effectWater/sewage treatment by flocculation/precipitationWater/sewage treatment by sorptionFlocculationSewage
The invention discloses a compound refined diatomite sewage dephosphorization agent. The compound refined diatomite sewage dephosphorization agent comprises 67-75% of modified refined diatomite, 24-32% of a polymeric diacid flucculant and 1-2% of a cationic organic polymer flocculant. The compound refined diatomite sewage dephosphorization agent has the advantages that the modified diatomite has efficient adsorption effects and the polymeric diacid flucculant and the cationic organic polymer flocculant are conducive to obvious improvement of aggregation and flocculation effects of suspended sludge blankets in a biological aeration tank or a sedimentation tank, thus the dephosphorization efficiency of sewage treatment is greatly improved; and compared with the traditional chemical dephosphorization technology only adopting an aluminium salt or a ferric salt, a technology adopting the compound refined diatomite sewage dephosphorization agent has higher treatment efficiency and a lower operation cost.
Owner:SHANGHAI MUNICIPAL ENG DESIGN INST GRP +1
Carbon nano tube/chitosan mesoporous spherical composite material as well as preparation method thereof
ActiveCN103933949AWon't fall offEasy separationOther chemical processesAlkali metal oxides/hydroxidesCarbon nanotubeSpherical form
The invention relates to a carbon nano tube / chitosan mesoporous spherical composite material as well as a preparation method thereof. The preparation method of the spherical composite material comprises the following steps: (1) carrying out acid treatment and dispersion treatment on carbon nano tube raw materials; (2) preparing a chitosan solution with the degree of deacetylation of 80-100%; (3) adding the carbon nano tube which is treated by the step (1) into the chitosan solution obtained by the step (2), and mixing uniformly so as to a spherical liquid; (4) dissolving alkaline solute into water so as to obtain a solidified liquid; (5) dropwise adding the spherical liquid into the solidified liquid so as to prepare a composite sphere; (6) placing the composite sphere generated by the step (5) into a crosslinking agent solution to crosslink, and stirring so as to obtain a crosslinking composite sphere; (7) refrigerating and drying the crosslinking composite sphere obtain by the step (6) so as to obtain the carbon nano tube / chitosan mesoporous spherical composite material. The carbon nano tube / chitosan mesoporous spherical composite material disclosed by the invention is nontoxic, and has favorable adsorption performance.
Owner:梁吉 +1
Formaldehyde removal composite inoculant, preparation method and application thereof
InactiveCN110227340ALarge specific surface areaHigh phosphorus contentGas treatmentDispersed particle separationBiotechnologyEnzyme
Relating to biological inoculants, the invention relates to a formaldehyde removal composite inoculant, a preparation method and application thereof, and aims to solve the problems of combined utilization of insect dung (earthworm dung) with composite microorganisms to give better play to the two and then remove indoor formaldehyde. The formaldehyde removal composite inoculant provided by the invention is prepared from a mixture of a compound fungus agent, earthworm dung and drug darkling beetle dung. After mixing of fungus agents with bio-enzyme, the obtained mixture is then mixed with earthworm dung and drug darkling beetle dung, thus obtaining the formaldehyde removal composite inoculant, which can be applied to removal of indoor formaldehyde. The formaldehyde removal composite inoculant is used for the microbial formaldehyde removal field.
Owner:关圣睿
Aluminum profile anode oxidizing electrolyte, preparation method thereof and aluminum profile anode oxidizing process
ActiveCN110306228AStrong complexing abilityStrong surface adsorptionSurface reaction electrolytic coatingAluminum IonElectrolysis
The invention discloses aluminum profile anode oxidizing electrolyte, a preparation method thereof and an aluminum profile anode oxidizing process and belongs to the technical field of electrolysis orelectrophoretic processes. The electrolyte is composed of phytic acid, fulvic acid, a PH conditioning agent and water, the concentration of the phytic acid in the electrolyte is 70-90 g / L, the concentration of the fulvic acid in the electrolyte is 35-55 g / L, and the PH value of the electrolyte is 2.0-2.8. On the one hand, the phytic acid of the electrolyte is mainly sourced from root trunks, stems and seeds of plants, the fulvic acid can be used for a medical purpose, and therefore, the electrolyte mainly composed of the phytic acid and the fulvic acid is completely poisonous and harmless andis environmentally friendly; and on the other hand, aluminum ions dispersed into a solution and a complex formed by the phytic acid and the aluminum ions can be adsorbed to a position nearby an aluminum profile, a complex of phytic acid and Al<3+> is also formed on the surface of aluminum oxide while hole sealing is assisted, a layer of compact hydrophobic protective film is produced, a chemicaldissolution effect of the electrolyte on the oxidation film is retarded, the performance of the film is improved, and the corrosion resistance of the oxidation film is enhanced.
Owner:ANHUI LANT ALUMINUM
Active carbon filter core and preparation method thereof
InactiveCN107670639AIncreased activationPromote absorptionOther chemical processesSpecific water treatment objectivesActivated carbonFiltration
The invention relates to an active carbon filter core and a preparation method thereof. The active carbon filter core comprises is prepared from the following raw materials in parts by weight: 150 parts of polyethylene, 200 parts of active carbon, 100 parts of magnesium and 35 parts of a KDF filter material, wherein the iodine adsorption value of the active carbon is 1000-1200. The preparation method comprises the following steps: (1) mixing and uniformly stirring the polyethylene, the active carbon, the magnesium and the KDF filter material to obtain a mixed material; (2) putting the mixed material into a mould, then adding into a furnace for sintering heat treatment, cooling, and demoulding to obtain the active carbon filter core. The active carbon filter core has the beneficial effectsas follows: through a scientific ratio of the raw materials, the defects that the conventional active carbon filter core only uses an active carbon material and the adsorbing and purifying effects ofthe active carbon are poor are overcome; the active carbon has the particle size of 80-325 meshes, the adsorbing effect of the active carbon is fully played, and the purifying effect of the filter core is enhanced; a bonding moulding material in the filter core selects ultra-high molecular weight polyethylene, so that a water passage is not blocked, and the effect of the filter material is fully played; the filter core is firm, durable, good in gas diffusion, strong in filtration and strong in adsorption.
Owner:深圳市诚荣智能科技有限公司
Multistage activated carbon adsorption and ultrafiltration membrane combined drinking water treatment device and drinking water treatment method
InactiveCN106315988AAvoid negative effectsGood removal effectWater treatment parameter controlTreatment using aerobic processesFlocculationActivated carbon
The invention provides a multistage activated carbon adsorption and ultrafiltration membrane combined drinking water treatment device and a drinking water treatment method and relates to a drinking water treatment device and a drinking water treatment method. The invention aims at solving the problems that removal effect on trace organic substances of an existing ultrafiltration membrane technology is poorer and membrane pollution is caused by PAC in a PAC-ultrafiltration membrane combined technology. The device comprises a PAC adding unit, a coagulant adding unit, a flocculation reaction tank, a sedimentation tank, a return pipe, a common rapid filter, an aeration device, a GAC filter tank and an ultrafiltration membrane component. The method comprises the following steps: adding PAC and a coagulant into raw water by virtue of the PAC adding unit and the coagulant adding unit, and then enabling the raw water to enter the flocculation reaction tank; enabling effluent of the flocculation reaction tank to enter the sedimentation tank, and enabling carbon mud mixed solution to return to a water inlet of a flocculation tank by virtue of the return pipe; and thirdly, enabling effluent of the sedimentation tank to enter the common rapid filter, enabling effluent of the common rapid filter to enter the GAC filter tank by virtue of the aeration device, and enabling effluent of the GAC filter tank to enter the ultrafiltration membrane component. The device and method provided by the invention are applied to the field of drinking water treatment.
Owner:HARBIN INST OF TECH
Short-flow micro-polluted raw water treatment combined system integrated with adsorption, biological oxidation and membrane separation technologies
InactiveCN102515419AFully contactedGood removal effectWater/sewage treatment bu osmosis/dialysisMultistage water/sewage treatmentSeparation technologySludge
The invention relates to a short-flow micro-polluted raw water treatment combined system integrated with adsorption, biological oxidation and membrane separation technologies. The system comprises a raw water tank, a biological contact oxidization area, a transition area and a membrane reaction area, wherein the raw water tank is connected with a water inlet on one side at the top of the biological contact oxidization area through a water sucking membrane pump and a pipeline; an air pump is connected with an air inlet port on one side at the top of the biological contact oxidization area through a pneumatic butterfly valve and a pipeline; the air inlet port is connected with an air inlet tube; the air inlet tube is inserted into the bottom of the biological contact oxidization area; PAC (Polymeric Aluminum Chloride) grains are arranged in both of the biological contact oxidization area and the transition area; the biological contact oxidization area and the transition area are connected through an overflow plate; a sludge-discharging inclined plate is arranged at the bottom of the transition area; a membrane pool is arranged on one side of the transition area; a hollow fiber membrane is arranged in the membrane pool; the air pump is connected with the air inlet port on one side at the top of the membrane pool through the pneumatic butterfly valve and the pipeline; the air inlet port is connected with the air inlet tube; and the air inlet tube is inserted into the bottom of the membrane pool.
Owner:TONGJI UNIV
Cyclodextrin nanocluster-modified graphene film material for removing bisphenol A pollutants in water and preparation method thereof
ActiveCN107754615AGive full play to the adsorption effectImprove removal efficiencySemi-permeable membranesOther chemical processesAdsorption effectFilm material
The invention discloses a cyclodextrin nanocluster-modified graphene film material. Cyclodextrin on a graphene sheet is connected through a functional group reaction method based on graphene as a carrier, the nanoclusters are formed on the graphene surface through self-assembling, the graphene is obtained through reduction of various graphene oxides in various ways and the cyclodextrin is alpha, beta or gamma cyclodextrin subjected to functional group replacement. The cyclodextrin provides a carrier for a cyclodextrin nanocluster and provides a water filtering channel so that cyclodextrin canfully perform the adsorption effect on bisphenol A and the whole removal process is simple and fast. The graphene film has nanofiltration effects and greatly improves the removal efficiency of bisphenol A. The invention also discloses a preparation method of the cyclodextrin nanocluster-modified graphene film material.
Owner:NANJING UNIV
Method for grading catalysts for hydrofining of inferior distillate oil
ActiveCN102876365BHigh activityGive full play to the adsorption effectTreatment with hydrotreatment processesNitrogenHigh surface
Owner:CNOOC TIANJIN CHEM RES & DESIGN INST +1
Device for removing organic macromolecules in industrial wastewater
PendingCN109081494ARelieve pressureUnique structureSpecific water treatment objectivesWater contaminantsIndustrial effluentResource utilization
The invention relates to an environmental protection technique and wastewater treatment technique device, in particular to a device for removing organic macromolecules in industrial wastewater. A coagulation tank, a filter, a buffer tank, a resin adsorption device, an evaporation condensation device, a cold trap, an ozone oxidization column and a post-oxidation water storage tank which are sequentially connected through a pipeline and a valve along a treatment procedure to form the device. The device is unique in structure, simple to operate, easy to control, simple in process procedure and high in treatment efficiency, resource utilization can be achieved, a resin adsorption process and a ozone oxidization process are combined to synergistically treat the organic macromolecules in the industrial wastewater, cost is saved, energy consumption is reduced, industrial wastewater is discharged after reaching the standard, and the device has a wide application prospect.
Owner:NINGXIA UNIVERSITY
Denitration catalyst with low SO2/SO3 conversion rate and preparation method thereof
PendingCN112808263ASimple and fast operationShort preparation cycleGas treatmentCatalyst protectionInorganic saltsAdsorption reaction
The invention relates to the technical field of selective catalytic reduction catalysts, in particular to a denitration catalyst with a low SO2 / SO3 conversion rate and a preparation method thereof. The preparation method comprises the following steps of putting a metal nitrate, glycine and an inorganic salt auxiliary in a solvent, conducting stirring for dissolution, and conducting calcination to obtain a powder A; dipping titanium dioxide in a mixed solution of ammonium metavanadate and ammonium heptamolybdate, conducting stirring and dissolving, and conducting calcining to obtain a powder B; and mixing the powder A and the powder B, and performing high-shear dispersion to obtain the denitration catalyst. The metal oxide is prepared by adopting a glycine combustion method, and the prepared metal oxide is small in particle size, uniform in particle size distribution, multiple in pore channels, high in adsorption capacity and capable of adsorbing SO2 and SO3 on the catalyst in the SCR reaction process, so that the SO2 / SO3 conversion rate of the catalyst is reduced; and the powder A and the powder B can be highly and uniformly mixed under the actions of centrifugal extrusion, high-speed cutting, impacting, grinding and the like generated in the high-shear dispersion process, so that the high denitration activity of the catalyst is guaranteed.
Owner:DATANG NANJING ENVIRONMENTAL PROTECTION TECH
Phenol-cyanogen wastewater treatment method
ActiveCN109179551ALow running costSolve severe backlogWater contaminantsWater/sewage treatment by sorptionChemistryCyanogen
The invention belongs to the technical field of wastewater treatment. The phenol-cyanogen wastewater treatment method utilizes coke powder as a solid adsorbent to perform dynamic adsorption, and comprises: a) mixing phenol-cyanogen wastewater and a solid adsorbent to obtain a first solid-liquid mixture, wherein the weight of the solid adsorbent is less than 10% of the amount of the phenol-cyanogenwastewater; b) draining the first solid-liquid mixture to an adsorption pool, and carrying out dynamic adsorption in the adsorption pool to obtain a second solid-liquid mixture, wherein at least a first separation plate and a second separation plate are longitudinally arranged in the adsorption pool, and are used for separating in the adsorption pool to at least form a first adsorption groove, asecond adsorption groove and a third adsorption groove, a plurality of through holes for the passing through of the first solid-liquid mixture are arranged on the bottom portions of the first separation plate and the second separation plate, and the first solid-liquid mixture sequentially flows through the first adsorption groove, the second adsorption groove and the third adsorption groove; and c) carrying out solid-liquid separation on the second solid-liquid mixture, and discharging the treated water. According to the present invention, the method has characteristics of low operating cost and high adsorption efficiency, and can treat large-scale phenol-cyanogen wastewater.
Owner:湖南华菱涟源钢铁有限公司
Ladle slag modifier for stainless steel refining process
ActiveCN102041355BLow melting pointImprove liquidityProcess efficiency improvementAlkalinitySmelting process
The invention relates to a ladle slag modifier for the stainless steel refining process, which comprises the following components in percentage by weight: 38 to 50 percent of CaO, 22 to 28 percent of SiO2, 5 to 10 percent of Al2O3, 5 to 10 percent of CaF2, 3 to 8 percent of Ca-Si, 2 to 5 percent of MgO and 5 to 10 percent of B2O3, wherein the particle size of the modifier is 3 to 15mm. The ladle slag modifier for the stainless steel refining process modifies and reduces ladle slag subjected to argon oxygen decarburization (AOD) tapping in the stainless steel smelting process to control the alkalinity and reduce the oxidability of the ladle slag, so that the ladle slag has the function of improving the cleanliness of stainless steel, and the quality of the stainless steel is further improved.
Owner:BAOSHAN IRON & STEEL CO LTD
Bioreactor for artificial liver
PendingCN113181458AExtended service lifeIncrease contact areaOther blood circulation devicesDialysis systemsHollow fibreElectrical battery
The invention discloses a bioreactor for an artificial liver, and the bioreactor comprises a circular glass cylinder sealed by covers at the two ends, and a plurality of hollow fiber tubes made of hollow fiber membranes are arranged in the center in the circular cylinder; the blood inlet pipe is communicated with one ends of all the hollow fiber pipes, the blood outlet pipe is communicated with the other ends of all the hollow fiber pipes, the nutrient solution inlet pipe and the nutrient solution outlet pipe are communicated with the peripheral gap, a plurality of first rod type electrodes are fixed to the inner wall of the circular cylinder, and a second rod type electrode is fixed to the centers of the hollow fiber pipes. One end of each first rod-type electrode is electrically connected with the negative electrode of the battery, one end of each second rod-type electrode is electrically connected with the positive electrode of the battery, the first rod-type electrodes are uniformly distributed along the circumference of the inner wall of the circular glass cylinder, and an electric field which uniformly radiates in the radial direction is formed between the first rod-type electrodes and the second rod-type electrodes. The bioreactor of the artificial liver can fully remove protein binding toxins in blood, and the service life of the bioreactor of the artificial liver is prolonged.
Owner:浙大宁波理工学院
Green pigment dispersion liquid for color filter and preparation method of green pigment dispersion liquid
PendingCN114085549ASimple compositionGive full play to the adsorption effectOrganic dyesPhotosensitive materials for photomechanical apparatusColor gelPigment dispersion
The invention relates to a green pigment dispersion liquid for a color filter and a preparation method of the green pigment dispersion liquid. The dispersion liquid comprises the following components: phthalocyanine pigment, a dispersing agent, resin and a solvent. The dispersion liquid is simple in formula, and the pigment dispersion liquid with excellent viscosity performance and good storage stability is obtained on the premise of not using any derivative, so that the defects of complex synthesis and formula are overcome.
Owner:XIAN SMART MATERIALS CO LTD
A kind of phenol cyanide wastewater treatment method
ActiveCN109179551BSolve a serious backlogGive full play to the adsorption effectWater contaminantsWater/sewage treatment by sorptionCyanideSorbent
The invention belongs to the technical field of wastewater treatment. The phenol cyanide wastewater treatment method of the present invention utilizes coke powder as a solid adsorbent to perform dynamic adsorption, comprising: a) mixing the phenol cyanide wastewater with the solid adsorbent to obtain the first solid-liquid mixture; the weight of the solid adsorbent is less than the amount of the phenol cyanide wastewater 10%; b) drain the first solid-liquid mixture to the adsorption pool, and perform dynamic adsorption in the adsorption pool to obtain the second solid-liquid mixture; at least a first partition and a second partition are vertically arranged in the adsorption pond for In the adsorption pool, at least the first adsorption tank, the second adsorption tank and the third adsorption tank are formed separately; the bottoms of the first partition and the second partition are arranged with a number of through holes for the first solid-liquid mixture to pass through, and the first solid-liquid The mixture flows through the first adsorption tank, the second adsorption tank and the third adsorption tank in sequence; c) The second solid-liquid mixture is subjected to solid-liquid separation, and the treated water is discharged. Therefore, the method of the invention has low operation cost, high adsorption efficiency, and can treat phenol-cyanide wastewater on a large scale.
Owner:湖南华菱涟源钢铁有限公司
Nutrient geotextile
InactiveCN111512927AImprove the living environmentImprove survival rateGrowth substratesCulture mediaNutrientActivated carbon
The invention particularly relates to a nutrient geotextile comprising a woven fabric layer, a nutrient layer and a non-woven fabric layer. The nutrient geotextile is characterized in that the nutrient layer comprises the following raw materials in parts by weight: 20-30 parts of modified bentonite, 5-10 parts of activated carbon sources, 8-15 parts of activated nitrogen sources, 5-10 parts of EMstrains and 1-5 parts of bean dregs. The bentonite is modified, the EM strains and other materials are introduced to jointly form the nutrient layer, so that the bentonite can fully play an adsorptionrole and adsorb more nitrogen sources, carbon sources and EM strains, the living environment of plants in concrete gaps is improved, and the survival rate of the plants is increased.
Owner:昊博(山东)新材料科技有限公司
Compound refined diatomite sewage dephosphorization treatment agent
ActiveCN102976458BImprove dephosphorization efficiencyGive full play to the adsorption effectWater/sewage treatment by flocculation/precipitationWater/sewage treatment by sorptionFlocculationSludge
Owner:SHANGHAI MUNICIPAL ENG DESIGN INST GRP +1
An ecological restoration type prefabricated concrete slab and a method for reconstructing hard bank revetment and river bed restoration
ActiveCN104150846BAvoid difficultiesProtective structureWater resource protectionAluminium silicatesSorbentReconstruction method
The invention discloses an ecological remediation-type precast concrete plank and a method for reconstructing a river hard protection bank as well as restoring riverbed, wherein the precast concrete plank employs concrete to precast, the concrete comprises the following components: 400-700kg / m<3> of porous aggregate; 200-250kg / m<3> of low alkalescence cementing material, 40-60kg / m<3> of granular repairing agent, 3-7kg / m<3> of high efficiency additive and 50-90kg / m<3>. The ecological reconstruction method that the ecological remediation-type precast concrete plank is employed at bottom of original hard protection bank and riverbed has the advantages of saved resource, less investment, short construction period and fast effectiveness, and overcomes the difficulty of underwater construction of the concrete. Through the reconstruction method, a water and land ecological system chain is improved, pollutants such as an organic matter, nitrogen and phosphorus and heavy metals in water can be simultaneously absorbed, then pollutants can be removed through combined action of animals and plants as well as microbes, in-situ regeneration of an adsorbent is realized, adsorption capacity enables in-situ recovery, and long-term continuous ecological water purification effect can be reached.
Owner:SOUTHEAST UNIV
Adsorbent of immobilized rare earth metal cerium and preparation method thereof
InactiveCN101708461BGood removal effectIncrease the range of positive chargeOther chemical processesWater contaminantsSorbentCerium
The invention relates to an adsorbent of immobilized rare earth metal cerium and a preparation method thereof. The adopted technical scheme is as follows: the immobilized amount of cerium in an immobilized substrate is 0.06-1.1g / g. The preparation method comprises the following steps: soaking collagen in deionized water under the condition that the mass ratio of the collagen to the deionized water is 3:20-60, adding acids to regulate the pH value to be less than or equal to 2.0, and stirring the mixture at room temperature; adding the cerium ion solution into the mixture under the condition that the mass ratio of the collagen to the cerium is 0.9-14.3:1, stirring the mixture for 2-4h at room temperature, heating the mixture to 35-55 DEG C, dropwise adding alkalis to regulate the pH value to 3.0-8.0, continuously reacting for 4-8h, then cooling the mixture to the room temperature, and stirring the mixture; and taking the collagen body containing cerium out of the mixed solution, flushing the collagen body with deionized water, soaking the collagen body in ethanol, and drying the collagen body in a vacuum mode. The adsorbent prepared by the invention can effectively adsorb and remove harmful inorganic fluoride anions, phosphate radical and arsenate radical in industrial smelting waste water and general water.
Owner:LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
Mounting structure for magnetic screw plug of wind power gear box
PendingCN112879548AImprove maintainabilityGive full play to the adsorption effectGear lubrication/coolingBodies oilGear wheel
The invention discloses a mounting structure for a magnetic screw plug of a wind power gear box. The mounting structure comprises a ball valve, a three-way joint, the magnetic screw plug and an oil pipe, wherein the ball valve is arranged on a box body oil tank; one end of the three-way joint is connected with the inlet end of the oil pipe, and the other two ends of the three-way joint are connected with the ball valve and the magnetic screw plug respectively; the outlet end of the oil pipe is connected with an electric oil pump; and the electric oil pump is arranged on the box body oil tank. When the oil pump sucks oil, lubricating oil containing metal particles enters the oil pipe through the three-way joint and then is adsorbed by the magnetic screw plug on the three-way joint, so that the metal particles entering a filter and the gear box are reduced, the cleanliness of the lubricating oil is improved, and the lubricating effect of a gear and a bearing is improved. After the gear box works for a long time, the ball valve can be closed, the lubricating oil in the box body oil tank is prevented from leaking out, and then the magnetic screw plug is disassembled and cleaned, so that the waste and pollution of the lubricating oil are avoided, and the maintainability of the magnetic screw plug is improved.
Owner:CHONGQING WANGJIANG IND
Steel ladle slag reducing agent with high calcium oxide content, and preparation method thereof
The invention provides a steel ladle slag reducing agent with high calcium oxide content, which comprises the components by mass percent: 42-48% of Al, 18-28% of CaO, 0.5-2.0% of SiO2, 15-22% of Al2O3, 3-8% of CaF2 and 1-4% of MgO. The steel ladle slag reducing agent has high calcium oxide content, and other components are synthesized at the same time, so that the steel ladle slag reducing agent is good in a metal-slag reaction and rapid in slagging, and is capable of realizing the reduction on steel ladle slag and giving full play to the desulfuration and deoxidation functions of steel ladle slag on molten steel as well as the adsorption function of the steel ladle slag on impurities; therefore, the cleanliness of the molten steel can be improved.
Owner:BAOSHAN IRON & STEEL CO LTD
Cyclodextrin nanocluster modified graphene membrane material and its preparation method for removing bisphenol A pollutants in water
ActiveCN107754615BGive full play to the adsorption effectImprove removal efficiencySemi-permeable membranesOther chemical processesGraphene flakeNanofiltration
A cyclodextrin nanocluster modified graphene membrane material, which uses graphene as a carrier, cyclodextrin is connected on the graphene sheet by a method of functional group reaction, and at the same time self-assembles on the graphene surface to form nanoclusters , the graphene is obtained by reducing various types of graphene oxide through various methods, and the cyclodextrin is α, β, γ cyclodextrin substituted by various functional groups. Graphene provides a carrier for cyclodextrin nanoclusters and provides a channel for water filtration, so that cyclodextrin can fully exert its adsorption effect on bisphenol A, and at the same time make the whole removal process simple and fast; while the graphene membrane itself has The nanofiltration effect also greatly improved the removal efficiency of bisphenol A. The invention discloses its preparation method.
Owner:NANJING UNIV
A kind of aluminum profile anodic oxidation electrolyte and preparation method thereof, and anodic oxidation process of aluminum profile
ActiveCN110306228BStrong complexing abilityStrong surface adsorptionSurface reaction electrolytic coatingElectrolytic agentAluminum Ion
The invention discloses an aluminum profile anodic oxidation electrolyte, a preparation method thereof, and an anodic oxidation process of an aluminum profile, which belong to the technical field of electrolysis or electrophoresis, and consist of phytic acid, fulvic acid, a pH regulator and water. The concentration of acid in the electrolyte is 70-90g / L, the concentration of fulvic acid in the electrolyte is 35-55g / L, and the pH value of the electrolyte is 2.0-2.8. On the one hand, phytic acid mainly comes from the roots, stems and seeds of plants, while fulvic acid can be used for medical treatment, so the electrolyte composed of the two as the main components is completely non-toxic and harmless, and is green. Environmentally friendly; on the other hand, it can adsorb aluminum ions dispersed in the solution, and the complex formed by phytic acid and aluminum ions to the vicinity of the aluminum profile, assisting in sealing pores, and also forming phytic acid and Al on the surface of alumina 3+ The complex compound produces a dense hydrophobic protective film, which slows down the chemical dissolution of the oxide film by the electrolyte, improves the performance of the film layer, and enhances the corrosion resistance of the oxide film.
Owner:ANHUI LANT ALUMINUM
Air filter element with multiple filtering effects
PendingCN109931193AGive full play to the adsorption effectExtended service lifeMachines/enginesAir cleaners for fuelActivated carbonFiber
The invention relates to an air filter element with multiple filtering effects. The air filter element comprises electrostatic dust collection paper, a plurality of first micropores, a fiber adsorption layer, a plurality of second micropore, fibers and an activated carbon layer. The first micropores are formed in the electrostatic dust collection paper, the fiber adsorption layer is adhered to theupper side of the electrostatic dust collection paper, the second micropores are formed in the fiber adsorption layer, the first micropores in the electrostatic dust collection paper and the second micropores in the fiber adsorption layer are staggered in position, the second micropores are filled with the fibers, and the activated carbon adsorption layer which is prepared by coating a non-wovenfabric externally with activated carbon particles is adhered to the upper side of the fiber adsorption layer. The air filter element has the advantages that the air filter element is simple in integral structure, has the multiple adsorption effects, can guarantee little difference of using states of positions of the air filter element from the bottom air inlet face to the top air outlet face, andavoids the condition that the whole air filter element is fully replaced as the air outlet face is relatively new while the air inlet face needs to be replaced, so that the air filter element plays afull adsorption role, the service life of the air filter element is prolonged, and the using cost is lowered.
Owner:天津天美环保科技有限公司
System for treating heavy metal wastewater
InactiveCN102503030BGive full play to the adsorption effectEasy to handleWater contaminantsMultistage water/sewage treatmentSorbentAbsorption column
Owner:CHINA UNIV OF MINING & TECH (BEIJING)
A kind of preparation method of octenyl succinic acid water-soluble starch ester
The invention discloses a preparation method of an octenyl succinic acid water-soluble starch ester. The method comprises the following steps: grinding dry ore materials, screening and evenly mixing with octenyl succinic anhydride; then dripping a water-soluble starch solution into a mixture of the ore materials and the octenyl succinic anhydride and reacting under an alkaline condition; and finally, regulating a pH value to reach acidity, centrifuging after oscillating, taking out a supernatant and drying, thereby obtaining the octenyl succinic acid ester of the water-soluble starch. The method has the advantages that the octenyl succinic acid water-soluble starch ester with high substitution efficiency and low octenyl succinic acid residue quantity can be prepared by directly utilizing the water-soluble starch.
Owner:宁波黎源日用品有限公司
A kind of carbon nanotube/chitosan mesoporous spherical composite material and preparation method thereof
ActiveCN103933949BWon't fall offEasy separationOther chemical processesAlkali metal oxides/hydroxidesCarbon nanotubeBCN nanotube
The invention relates to a carbon nano tube / chitosan mesoporous spherical composite material as well as a preparation method thereof. The preparation method of the spherical composite material comprises the following steps: (1) carrying out acid treatment and dispersion treatment on carbon nano tube raw materials; (2) preparing a chitosan solution with the degree of deacetylation of 80-100%; (3) adding the carbon nano tube which is treated by the step (1) into the chitosan solution obtained by the step (2), and mixing uniformly so as to a spherical liquid; (4) dissolving alkaline solute into water so as to obtain a solidified liquid; (5) dropwise adding the spherical liquid into the solidified liquid so as to prepare a composite sphere; (6) placing the composite sphere generated by the step (5) into a crosslinking agent solution to crosslink, and stirring so as to obtain a crosslinking composite sphere; (7) refrigerating and drying the crosslinking composite sphere obtain by the step (6) so as to obtain the carbon nano tube / chitosan mesoporous spherical composite material. The carbon nano tube / chitosan mesoporous spherical composite material disclosed by the invention is nontoxic, and has favorable adsorption performance.
Owner:梁吉 +1
A kind of carbon nanotube/activated carbon mesoporous composite pellet and preparation method thereof
ActiveCN105817200BHigh modulus of elasticityUniform sizeOther chemical processesAlkali metal oxides/hydroxidesActivated carbonCarbon nanotube
The invention discloses carbon nano tube / activated carbon mesoporous composite pellets and a preparation method thereof. The preparation method comprises the following steps that 1, a carbon nano tube is subjected to acid treatment and disperse treatment; 2, the carbon nano tube treated in the step 1 is evenly mixed with pelleting auxiliary materials and a wetting agent; 3, the mixed material obtained in the step 2 is pelletized, and precursors are obtained; 4, the precursors obtained in the step 3 are carbonized and activated to obtain the carbon nano tube / activated carbon mesoporous composite pellets. The pellets prepared through the preparation method are good in sphericity and uniform in size, solves the problem that the carbon nano tube is large in elasticity modulus, poor in flowability and not likely to be pelletized, is nontoxic and has good adsorptive property.
Owner:梁吉 +1
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