25results about How to "Fast adsorption" patented technology

The invention belongs to the field of environmental protection and pollutant treatment, and relates to a method for enriching and detecting microplastics in a surface water body. The lignin is grafted with amido and carboxyl through two-step reaction, firstly, carbon quantum dot active site powder with positive charges on the surface is prepared, the carbon quantum dot active site powder is cross-linked with the modified montmorillonite, and the carbon quantum dot active site microporous adsorbent is prepared, so that the prepared adsorbent has multiple surface functional groups and multiple and uniform active sites, and the adsorption efficiency is improved. The adsorption speed of the micro-plastics in the water body can be increased, the adsorption capacity of the micro-plastics in the water body is improved, and rapid enrichment and separation of the micro-plastics in the water body are realized. Based on the enrichment and separation method, the invention further provides a method for measuring the microplastics in the water environment. According to the invention, rapid filtration, enrichment and detection of micro-plastics in water are realized, the operation is simple and convenient, and the accuracy is high.

The invention discloses a VOCs waste gas treatment device, relates to the technical field of waste gas adsorption treatment, and solves the problem that the adsorption effect of an adsorbent on VOCs organic matters in waste gas is poor. Meanwhile, the problems that the VOCs organic matters adsorbed in the adsorbent are difficult to quickly and conveniently remove, and the VOCs organic matters in the waste gas are inconvenient to continuously treat are solved. The VOCs waste gas treatment device comprises a waste gas pretreatment tank, a waste gas adsorption tank, a middle connecting base, a waste gas separation and adsorption mechanism and a cooling assembly, the waste gas pretreatment tank is arranged on the side face of the waste gas adsorption tank, and the waste gas pretreatment tank and the waste gas adsorption tank are communicated through a flow guide pipeline. According to the waste gas treatment device, separation and adsorption operation of particles, moisture and VOCs organic matter in waste gas can be rapidly and synchronously carried out, and the treatment cost is reduced while the waste gas treatment efficiency is improved. Meanwhile, the VOCs organic matters adsorbed in the activated carbon adsorption block can be desorbed by heating, so that the waste gas can be continuously treated.

The invention belongs to the technical field of azeotropic distillation and dehydration of isopropanol, particularly relates to an azeotropic distillation and dehydration method of industrial-grade isopropanol, and aims to solve the problems that the energy consumption of separation of isopropanol and solvents is high, the energy consumption is low and the like due to the fact that solvents such as benzene and cyclohexane are adopted for azeotropic distillation and dehydration in the conventional isopropanol dehydration process, but the boiling points of benzene and cyclohexane are close to those of isopropanol. In order to solve the problems that when diethyl ether is used as an azeotropic agent, the solvent is easily enriched at the tower top to form potential safety hazards, and when the solvents are used for azeotropic distillation, the requirements of electronic chemicals cannot be met, the following scheme is provided: the method comprises the following steps: S1, adding an industrial-grade isopropanol raw material into an azeotropic distillation tower; the azeotropic dehydrating agent disclosed by the invention is small in boiling point, high in ignition point, non-corrosive, low in price, good in safety and low in separation energy consumption, and has excellent application value and application prospect in industrial production and experiments, the used device is simple and easy to operate, the yield is high, and automatic production can be realized.

The invention discloses an activated carbon adsorbent with high adsorption capacity, and relates to the technical field of activated carbon adsorbents for natural gas bottles, the activated carbon adsorbent comprises the following components: an active component A: a specially treated metal organic framework material accounting for 10-20% of the total adsorbent material; the active component B is high-quality activated carbon which is subjected to secondary activation treatment and accounts for 60-80% of the total adsorbent material; the auxiliary agent C is a composite auxiliary agent composed of inorganic alkali metal salt and organic amine, the content of the auxiliary agent C accounts for 5-15% of the total adsorbent material, the inorganic alkali metal salt in the auxiliary agent C is potassium carbonate, the organic amine in the auxiliary agent C is triethylamine, and the metal organic framework material in the active component A is MOFs. According to the activated carbon adsorbent with the high adsorption capacity, through the synergistic effect of the active component A, the active component B and the auxiliary C, the methane adsorption capacity can be expected to be improved by 30-50%.

The invention discloses a preparation method of a Cu < + >-based loaded dual-MOF (Metal Organic Framework) composite material, which is a dual-MOF adsorption material prepared by taking high-stability ZIF-8 as a core, Cu-BTC as a growth layer and methanol as a growth environment. The method comprises the following steps: preparing high-stability ZIF-8 as a core MOF material, and adding a metal organic framework and an inorganic ligand into an organic solvent to realize in-situ uniform growth of Cu-BTC; a normal-temperature impregnation method is adopted, CuCl is used as a loading material, and the Cu < + >-based loaded dual-MOF composite material is prepared. By utilizing sp2 hybridization of CO functional groups, the CO adsorption performance is improved through pi-pi interaction. The preparation process is simple, easy to operate and low in equipment requirement, the production cost and difficulty are reduced, and the adsorbent has excellent adsorption properties such as large CO adsorption capacity, high adsorption speed, good stability and good selectivity; the catalyst is suitable for CO adsorption treatment in most industrial environments.

The invention relates to the technical field of energy efficiency testing, and discloses an extractor hood energy efficiency testing device and a testing method.The extractor hood energy efficiency testing device comprises a bottom plate, the bottom plate further comprises a separating device, the separating device comprises a separating structure and a rotating structure, and the separating structure comprises a separating tank, a steam inlet pipe, a metal net cylinder and a floating ball valve; the separating tank is fixedly connected to the upper surface of the bottom plate, the steam inlet pipe is fixedly connected to the top face of the separating tank, the metal net cylinder is arranged in the separating tank, the floating ball valve is movably connected to the bottom end in the separating tank, and the rotating structure comprises a rotating shaft, a connecting piece, a partition plate, a connecting rod and a scraper. The rotating shaft rotationally penetrates into the separating tank from the top end of the separating tank, and the connecting piece is fixedly connected to the surface of the rotating shaft.

The invention provides a glass strengthening salt bath potassium additive which comprises the following components in percentage by mole based on oxides: 37-49% of sodium oxide and / or potassium oxide, 1-3% of calcium oxide, 30-40% of silicon dioxide and 15-25% of aluminum oxide, wherein the sum of the content of the silicon dioxide and the content of the aluminum oxide is larger than 50%. The content of silicon dioxide and the content of aluminum oxide are adjusted, so that the additive forms a stable structure, the additive can be suitable for high working temperature, and the absorption efficiency is improved. The method can be applied to purification of glass, glass ceramics, salt compounds containing impurity lithium ions and the like.

The invention discloses a method for adsorbing and separating glyphosate and glyphosine, which adopts a base material loaded with amino-functionalized imidazole ionic liquid as an adsorbent to adsorb and treat wastewater containing glyphosate and glyphosine, the method comprises the following steps: treating an adsorbent adsorbed with glyphosate and glyphosine by using organic acid as an eluent, selectively eluting to obtain glyphosate, and continuously eluting by using inorganic acid / alkali as an eluent to obtain glyphosine; according to the method, the base material loaded with the amino-functionalized imidazole ionic liquid is used as the adsorbent for adsorbing the wastewater containing the glyphosate and the glyphosine, and the adsorbent is high in adsorption speed for a high-concentration glyphosate or glyphosine solution, can be filled in an adsorption column, can be repeatedly utilized and can be used in a relatively wide acid-base range.

The invention discloses a method for simultaneously detecting 27 bisphenol compounds in a dairy product, an ultra performance convergence chromatograph is adopted for detection, ACQUITY UPC2HSS Torus 2-Pic chromatographic column is adopted for separation, an EMR-Lipid technology is adopted for purification, the 27 bisphenol compounds in the dairy product can be qualitatively and quantitatively detected at the same time, and the method has the advantages of being high in flux, high in speed and good in recovery and has a very good application prospect.

This invention discloses a filtration and dust removal device and its usage method for candy tablet production, relating to the technical field of dust removal equipment. The device includes a candy tablet press, with an embedded industrial camera installed on one side of its outer wall. Through the coordinated use of the embedded industrial camera, a sugar powder suction machine, and three sets of filter nozzles, the size and quantity of the candy tablets can be detected, and the filtration and adsorption methods can be adjusted according to these different sizes and quantities. When the size and quantity of candy tablets are small, only the lowest wind speed is used for sugar powder adsorption and filtration, reducing energy consumption and factory costs, achieving energy conservation and emission reduction. When the size and quantity of candy tablets are large, the adsorption speed is increased, and sugar powder is adsorbed and filtered from both sides of the candy tablets during transport, facilitating secondary recycling of the sugar powder generated during transportation. Simultaneously, it prevents sugar powder from scattering and affecting the workshop production environment.

The invention discloses a method for extracting bromine from brine, belonging to the technical field of extracting bromine. The method comprises the following steps: acidification, primary oxidation, impurity removal, preparation of acidified quartz sand filter material, preparation of acidified white carbon black, mixing, preparation of an adsorption device, adsorption, reduction, elution, secondary oxidation, and treatment; in the mixing, after the impurity removal, 201×7 strong alkaline anion exchange resin, acidified white carbon black, and deionized water are mixed, stirred at room temperature, filtered, and vacuum dried to obtain the mixed exchange resin; the method of the invention is less affected by temperature, can still achieve a higher extraction rate for underground brine with a bromine content of less than 150ppm, and has a small equipment footprint, small equipment investment, and low energy consumption. It still has a higher extraction rate after an enlarged experiment, and the adsorption performance of the adsorption exchange resin used decreases slightly after multiple regenerations.

The present invention relates to the technical field of volatile oil separation, and specifically discloses a highly efficient throttling separation device for volatile oil in a gas mixture. The separation device comprises: a primary separation unit, a throttling expansion valve, an adsorption unit and a separation detection unit. The inlet end of the throttling expansion valve is connected to the outlet of the primary separation unit, the outlet end of the throttling expansion valve is connected to the inlet of the adsorption unit, and the outlet of the adsorption unit is connected to the inlet of the separation detection unit. The interior of the primary separation unit is composed of a first layer of sponge adsorption material, an oily component separation membrane, and a second layer of sponge adsorption material. The separation detection unit is composed of a third layer of sponge adsorption material, a second oily component separation membrane, a volatile oil component detection membrane, and a fourth layer of sponge adsorption material. The present invention effectively reduces the temperature of the mixed gas entrained with volatile oil through "throttling expansion", liquefies the volatile oil, significantly improves the separation efficiency of the volatile oil component, and improves the removal rate of the volatile oil in the mixed gas.

This invention discloses a lytic bacteriophage for controlling Vibrio alginolyticus in aquaculture environments. The bacteriophage, vB_ValM_R42H, belongs to the myotail bacteriophage family, is insensitive to chloroform, has a lipid-free capsid, and its preservation number is GDMCC No:67434-B1. This bacteriophage exhibits rapid adsorption, short latency, and high lysis rate, and maintains high activity over a wide temperature range (4℃~55℃) and pH range (2~11), demonstrating strong environmental adaptability. Genomic analysis shows that this bacteriophage does not contain virulence factors, antibiotic resistance genes, or lysogen-related genes, indicating high biosafety. Phylogenetic analysis indicates that it can be classified into a new genus. Due to its high lysis efficiency, good environmental stability, strong specificity, and genetic safety, the bacteriophage R42H of this invention can serve as an ideal biocontrol agent for controlling Vibrio alginolyticus disease in aquaculture.

The utility model relates to a paper cover feeding mechanism of a boxing machine, which comprises a support frame, the top of the support frame is rotatably connected with a rotating disc, the support frame is provided with a first driving mechanism used for driving the rotating disc to rotate, and the bottom of the rotating disc is provided with a sealing barrel coaxial with the rotating disc. An inserting cylinder fixed on the support frame is inserted into the sealing barrel in a sealing manner; the utility model has the advantage of high efficiency.

The invention discloses a method for separating and purifying neodymium and dysprosium from a waste neodymium-iron-boron permanent magnet, and particularly relates to the field of resource recovery. A solid adsorbent is a zinc-based organic metal framework adsorbent (Zn-MOF), and the Zn-MOF solid adsorbent is prepared by taking zinc nitrate hexahydrate (Zn (NO3) 26H2O) and terephthalic acid (H2BDC) as raw materials, N, N-dimethylformamide (DMF) as a solvent and triethylamine (TEA) as an initiator through a normal-temperature stirring method. The synthesized Zn-MOF is used for primarily adsorbing and purifying neodymium and dysprosium in a waste neodymium-iron-boron simulation solution; and finally, the sintered Zn-MOF is used for secondarily adsorbing a desorption solution, so that the purpose of separating neodymium and dysprosium is achieved. According to the technical scheme, the problem that the neodymium and dysprosium extraction efficiency is affected due to the fact that the waste neodymium-iron-boron magnet leachate contains impurities is solved, and the neodymium and dysprosium extraction efficiency and purity are improved.

The present application discloses a carbon-doped aluminum-based adsorbent and a preparation method thereof. 0.8 g of aluminum salt and 40-300 mL of a carbon source are fully stirred with a magnetic stirrer to obtain a pretreatment solution; the pretreatment solution is placed in a high-pressure reactor, and a hydrothermal method is used to react for 1-4 hours at 90-120 degrees Celsius to obtain an aluminum-based defluorinating agent; the aluminum-based defluorinating agent is washed and dried to obtain the carbon-doped aluminum-based adsorbent; the aluminum-based defluorinating agent of the present invention has the characteristics of high adsorption capacity, high selectivity, high acid and alkali applicability, reusability, good resistance to anion interference, low cost, etc.; it can quickly and efficiently remove fluoride ions in water, and is suitable for having a high adsorption capacity for fluorine between pH 3 and 12; the preparation method is simple, green, low-cost and environmentally friendly; the adsorption capacity of the aluminum-based defluorinating agent is greater than 600 mg / g, and can be used for removing fluoride ions from different types of water samples such as groundwater, tap water, and industrial wastewater.

The invention discloses a multi-module thermal conductivity type lithium battery energy storage device, and relates to the technical field of lithium batteries. The device comprises a device body, a storage battery module is fixed in the device body, the storage battery module is composed of two supports and a plurality of storage batteries, the storage batteries are evenly fixed between the two supports at equal intervals, and a mounting cover is fixedly mounted at the top of the device body through bolts. A net face shell is fixed to the top of the mounting cover, and a transverse frame is fixed to the interior of the net face shell. A cooling fan, an L-shaped column rod, a strip groove plate, a device main body, a friction plate, a friction ring and a rotating rod are matched to drive a spiral blade to convey heat generated by a lithium battery at the lower part in the device main body upwards through a fixed cylinder, so that the problem that the heat generated by the lithium battery at the lower part in the device main body is difficult to attract and discharge out of the device main body by the cooling fan is avoided; therefore, heat accumulation in the device main body is caused, and the lithium battery is overheated and damaged.

The invention provides an air purifier used in the production process of electronic products, belonging to the field of environmental protection equipment, comprising a cylindrical shell, a filtering device, a suction device and a humidifying device, the shell comprising an air inlet and an air outlet, the air inlet being arranged on the top surface of the shell, the air outlet being arranged on the side of the shell and close to the bottom surface of the shell, the filtering device comprising a shielding net, an activated carbon fiber net, a nano silver antibacterial filter net, an activated alumina filter plate and a photocatalyst filter, the suction device comprising a partition, a mounting frame and an axial flow fan, and the humidifying device comprising a spray box, a water tank, a water suction pump, a spray pipe and a mist nozzle; the invention has the advantages of being able to effectively purify air and adjust air humidity.

The application discloses a Cu-Sn-S metal sulfide adsorbent for capturing Ni 2+ , and has the molecular formula K 2‑ x Cu x (H2O) x [Cu2Sn2S6], x =0.1~1.9; has a two-dimensional layered structure, each electronegative layer skeleton is sequentially composed of [Sn-Cu-S], [Cu-S] and [Sn-Cu-S] three sub-layers, wherein K + is located in the pores of two [Sn-Cu-S] sub-layers and is used for balancing the charge of the layer skeleton; when Ni 2+ is adsorbed, Cu + in the [Sn-Cu-S] sub-layer is exchanged with Ni 2+ , so that the high-efficiency and high-selectivity capture of Ni 2+ in radioactive wastewater is realized.

The invention belongs to the technical field of lithium adsorption, particularly relates to a high-adsorption-capacity aluminum lithium adsorption film, and further discloses a preparation method of the high-adsorption-capacity aluminum lithium adsorption film. According to the high-adsorption-capacity aluminum-series lithium adsorption film, the linear polymer with the cation mass transfer capacity is selected, then a high polymer material with the ion mass transfer capacity is synthesized, and the mass transfer path is shortened with the maximum efficiency in the mode that a traditional three-dimensional granular lithium adsorbent is converted into a two-dimensional planar lithium adsorption film, so that the adsorption capacity of the aluminum-series lithium adsorption film is improved, and the adsorption capacity of the aluminum-series lithium adsorption film is improved. And by constructing an ion mass transfer channel between the high polymer and the embedded precursor, lithium ions in the brine can be quickly transferred to an embedded adsorption site, so that the adsorption capacity is improved. The adsorption film product disclosed by the invention has the advantages of high adsorption speed and large adsorption capacity, and has an obvious lithium extraction effect.

The invention belongs to the technical field of environmental treatment, and particularly relates to biological source amorphous calcium carbonate for dye wastewater treatment as well as a preparation method and application of the biological source amorphous calcium carbonate. The method comprises the following steps: inoculating bacillus licheniformis LRL007 into a liquid culture medium containing soluble inorganic calcium salt, and culturing to obtain the biological source amorphous calcium carbonate, the bacillus licheniformis LRL007 is preserved in the China General Microbiological Culture Collection Center on January 10, 2022, and the preservation number is CGMCC (China General Microbiological Culture Collection Center) No. 24275. The preparation method is economical, environmentally friendly and easy to operate, no toxic or harmful substance is added in the synthesis process, and no secondary pollution is caused; the obtained amorphous calcium carbonate is good in stability, has a well-developed porous structure and relatively good organic dye adsorption anti-interference capability, is wide in pH application range, can be recycled for at least 8 times or more, and has a very good application prospect in treatment of organic dye wastewater.

The invention discloses a one-step silane crosslinked SEBS-based elastomer and a preparation method thereof. The elastomer is composed of a silane master batch and a catalytic master batch. Wherein the silane master batch is prepared from the following components in parts by weight: 40 to 60 parts of SEBS (Styrene-Ethylene-Butylene-Styrene), 40 to 60 parts of linear low-density polyethylene, 1.5 to 5.0 parts of vinyl silane, 0.03 to 0.25 part of initiator, 20 to 30 parts of processing base oil, 0.5 to 1.0 part of lubricant and 1.0 to 5.0 parts of antioxidant; the catalytic master batch comprises the following components in parts by weight: 99 parts of linear low-density polyethylene, 1 part of SEBS, 1.5-2.5 parts of a catalyst and 2.0 parts of an antioxidant; after the silane master batch and the catalytic master batch are prepared, the silane master batch and the catalytic master batch are packaged according to the proportion of 19: 1, and a finished product is obtained. According to the invention, the one-step rapid, efficient and low-energy-consumption preparation of the silane crosslinked SEBS-based elastomer is realized, the production efficiency is improved, the production cost is reduced, the energy is saved, and the preparation process is greener and lower in carbon.

The invention belongs to the technical field of heavy metal wastewater treatment, and particularly relates to a heavy metal precipitant with a chelating function and a preparation method and application thereof. The preparation method comprises the following steps: adding polyacrylonitrile into a hydroxylamine reagent, adjusting the pH value to 6-7, and carrying out an amidoximation reaction to obtain amidoximated polyacrylonitrile; washing the amidoximated polyacrylonitrile, adding the washed amidoximated polyacrylonitrile into an aqueous solution containing an activator, adjusting the pH value to 5-8, and carrying out an activation reaction to obtain an intermediate product; and adding the intermediate product into an aqueous solution containing a dispersant, a surfactant and chloroacetic acid, adjusting the pH value to 6-8, and carrying out nucleophilic substitution reaction to obtain the product. The heavy metal precipitator is large in adsorption capacity and high in adsorption speed, has an excellent chelating function on ultralow-concentration divalent heavy metal ions, can be used for purification and recovery of precious metal in the fields of hydrometallurgy, environmental protection and the like, and can also be used for separation and recovery of rare elements such as uranium, gallium and the like.

The invention discloses a magnetic nano composite material for adsorbing precious metal ions as well as a preparation method and application thereof, and belongs to the technical field of precious metal recovery. The magnetic nano composite material disclosed by the invention is composed of Fe, FeS, a carbon layer and porous carbon, the Fe, the FeS, the carbon layer and the porous carbon have nanoscale sizes and structures; the magnetic nano composite material has the following structure: embedded nanospheres are uniformly distributed in a network structure formed by porous carbon; the nanosphere has a core-shell structure, the core is Fe, the shell is FeS, and the nanosphere is wrapped with a carbon layer. The magnetic nano composite material can highly selectively adsorb more than 99% of Au (III), Ag (I) and Pd (II) from more than 20 kinds of metal ions within 10 min, and precious metal separation can be rapidly achieved in a mode of externally applying a magnetic field.

The present invention discloses a multi-module thermal conductivity lithium battery energy storage device, which relates to the technical field of lithium batteries. The present invention comprises a device body, wherein a battery module is fixed inside the device body, and the battery module is composed of two brackets and a plurality of batteries, and the plurality of batteries are evenly and equidistantly fixed between the two brackets, and a mounting cover is fixed on the top of the device body by bolts, and a mesh shell is fixed on the top of the mounting cover, and a cross frame is fixed inside the mesh shell. The present invention drives the spiral blade to transport the heat generated by the lithium battery below the inside of the device body upward through the fixed cylinder through the cooperation of the heat dissipation fan, L-shaped column rod, groove plate, device body, friction plate, friction ring, and rotating rod, thereby avoiding the problem that the heat generated by the lithium battery below the inside of the device body is difficult to be attracted by the heat dissipation fan to be discharged from the device body, thereby causing heat accumulation inside the device body, resulting in overheating and damage of the lithium battery.