14results about How to "Large adsorption capacity" patented technology

This utility model discloses an ozone advanced oxidation tail gas recovery and utilization device, including an ozone tail gas inlet pipe and a primary purification tower and a secondary purification tower connected in sequence. The rear end of the secondary purification tower is connected to an ozone buffer tank. The primary and secondary purification towers are connected to the ozone tail gas inlet pipe through an ozone circulation pipe. Both the primary and secondary purification towers are connected to sodium hydroxide dosing tanks. This application uses a secondary ozone purification tower to purify the tail gas after ozone catalytic oxidation, recover and utilize the remaining ozone, improve ozone utilization rate, and reduce costs. At the same time, it absorbs the carbon dioxide after catalytic oxidation to produce a high-purity sodium carbonate solution for downstream use as a raw material, achieving waste resource recycling.

The application relates to the technical field of catalysts, and discloses a limited type iodine-based homogeneous immobilized catalyst as well as a preparation method and application thereof. The catalyst comprises a carrier and iodine ions, magnesium ions and quaternary ammonium ions loaded on the carrier, wherein the molar ratio of the magnesium ions, the quaternary ammonium ions, the iodine ions and the carrier is 0.01-1:4-15:1-30:1. The limited type iodine-based homogeneous immobilized catalyst disclosed by the application enhances the electrostatic interaction between iodine ions and quaternary ammonium ions through the molecular sieve limiting effect to construct a limited type structure. The catalyst has significantly enhanced CO2 adsorption and activation capacity, can activate an epoxide compound, and accelerates the ring opening of the epoxide compound. In a cycloaddition reaction catalyzed by the catalyst under the conditions of no solvent and no auxiliary agent, the conversion rate of propylene oxide can reach more than 73%, and the propylene carbonate selectivity can reach more than 85%.

This invention provides a multi-puff electronic cigarette cartridge and an electronic cigarette system used in conjunction with the cartridge. The cartridge includes a cartridge shell (9) and a cartridge bottom cover (5). The bottom cover (5) has a vertically penetrating atomizing carrier cavity (51) in the middle, and the atomizing carrier cavity (51) houses the oil-storing heating component. The oil-storing heating component includes a magnetic heating element (6) and an electronic cigarette atomizing carrier (7) fitted together. The magnetic heating element (6) is at least partially hollowed out in a tubular shape, and at least part of the material of the magnetic heating element (6) is metal. The middle part has a smoke flow channel (61) arranged along the length direction. Electronic cigarette atomizing agents are adsorbed in the electronic cigarette atomizing carrier (7). The cartridge of this invention sets the magnetic heating element and the electronic cigarette atomizing carrier together and installs them in the bottom cover, which has the characteristics of simple structure and easy manufacturing.

This invention relates to an electrochemical lithium-ion sieve-based lithium extraction apparatus and method, belonging to the field of electrochemical lithium extraction. The apparatus and method mainly comprise: a first end plate, a second end plate, and several electrolytic cell units assembled together. The electrolytic cell units are located between the two end plates. After brine and supporting electrolyte enter the electrolytic cell unit, due to the crisscrossing of the flow guide holes on the cathode and anode guide plates, the brine and supporting electrolyte flow to the cathode and anode respectively. Under the action of an electric field, lithium ions in the brine are absorbed by the lithium-deficient ion sieve on the cathode, transforming into lithium-rich ion sieves. Lithium ions from the lithium-rich ion sieve on the anode are released into the supporting electrolyte, transforming into lithium-deficient ion sieves. After draining the brine and supporting electrolyte, the apparatus is rinsed with pure water, and the brine and supporting electrolyte are exchanged, with the current direction changed, repeating the cycle to achieve selective extraction of lithium from the brine.

This invention relates to a method for preparing and using a biopolymer chitosan-modified magnetic sepiolite adsorbent. First, sepiolite (Sep) is co-precipitated with a magnetic core (Fe3O4) to magnetically modify it, yielding magnetic sepiolite (MSep). Then, chitosan (CTS) is extensively cross-linked onto the MSep surface using glutaraldehyde as a cross-linking agent, preparing a functionalized magnetic solid adsorbent (MSep@CTS) with a complete core-shell structure and abundant adsorption sites. Importantly, this material exhibits excellent adsorption performance for antimony ions and synergistic adsorption capacity for both Sb(III) and Sb(V) co-occurring in water. This "easy to obtain, easy to prepare, highly efficient, and clean" characteristic provides significant economic advantages and sustainable development potential while achieving high-performance adsorption, laying a solid foundation for large-scale practical applications.

The application discloses a plant biomass cellulose-based boron adsorbent, which comprises a substrate and a ligand grafted on the substrate, the substrate is cellulose grafted glycidyl methacrylate synthesized based on plant biomass cellulose, and the ligand is selected from any one of N-methyl-D-glucose, tris(hydroxymethyl) aminomethane, glycidyl-functionalized ethylenediamine and aldehyde glucose. A preparation method comprises the following steps: obtaining plant biomass cellulose based on plant biomass material; using plant biomass cellulose and glycidyl methacrylate monomers as raw materials, synthesizing cellulose grafted glycidyl methacrylate by adopting an ATRP method; and grafting polyol ligands onto the cellulose grafted glycidyl methacrylate by a hydrothermal reaction, to obtain the plant biomass cellulose-based boron adsorbent. The synthesis method of the boron adsorbent is green and simple, the cost is low, the adsorption capacity is large, and the method is favorable for large-scale application.

The application belongs to the field of solid adsorbent compositions, and particularly relates to a preparation method of magnetic amino gel and application thereof. The magnetic amino gel is prepared by subjecting magnetic microspheres with amino, organic polyamine and N,N-methylene bisacrylamide to a Michael addition reaction in a solvent. The magnetic amino gel of the application solves the shortcomings of traditional adsorbents that are not easy to separate from water bodies and are difficult to recycle, and has a large adsorption capacity for anionic dyes and a high adsorption capacity of 650 mg / g or more for methyl blue.

The invention belongs to the technical field of oil exploitation, and particularly relates to an oil-based foam oil displacement system based on stability augmentation of high-temperature-resistant nano-particles and a preparation method and application thereof.The stability augmentation oil-based foam oil displacement system is characterized in that 0.5 wt%-1.5 wt% of nano-particles, 0.5 wt%-2 wt% of a nonionic surfactant Span20 and 0.1 wt%-1.0 wt% of a nonionic surfactant JQ-1 are adopted, the half-life period of foam drainage can be 15-22 min under the conditions that the pressure is 1 MPa and the temperature is 100 DEG C, and the stability augmentation oil-based foam oil displacement system is stable. And the half-life period of foam is 9-15 days. The stability-enhancing oil-based foam oil displacement system based on the high-temperature-resistant nano-particles is high in foaming capacity in an oil solvent, the surface tension of the oil solvent can be remarkably reduced, high foaming performance and foam stability are achieved, and the preparation process is simple, green and environmentally friendly.

This invention discloses a thiol-functionalized polyvinyl alcohol (PVA) / sodium alginate (SA)@ZIF-67 composite hydrogel, its preparation method, and its applications. The preparation method uses PVA and SA as matrices, forming hydrogel spheres through ionic crosslinking. After adsorbing cobalt ions, thiol-functionalized ZIF-67 crystals are grown in situ in a mixed ligand solution containing 2-methylimidazole and 2-mercapto-1-methylimidazole to obtain the PVA / SA@SH-ZIF-67 composite hydrogel. This invention achieves efficient adsorption and integrated "adsorption-reduction-fixation" removal of Cr(VI) by introducing thiol-functionalized ZIF-67 into the hydrogel network, utilizing the strong coordination and chemical reduction effects of thiol groups on hexavalent chromium. This composite hydrogel has advantages such as large adsorption capacity, high removal efficiency, and easy separation and recovery, and has broad application prospects in the field of heavy metal wastewater treatment.

The invention relates to the field of environment-friendly and chemical materials, and discloses an adsorbent and a preparation method thereof. The preparation method of the adsorbent comprises the following steps: 1) molding a mixture containing FCC catalyst glue residues, an aluminum oxide source, an optional first metal chloride and a molding aid and a peptizing agent solution; (2) carrying out first roasting on the molded product obtained in the step (1) by taking the total weight of the FCC catalyst glue residue dry basis, the aluminum oxide source, the first metal chloride and the molding aid as a reference, the content of the FCC catalyst glue residue dry basis is 35-80wt%, the content of the aluminum oxide source is 15-60wt%, the content of the first metal chloride is 0-20wt%, and the content of the molding aid is 0-20wt%; and the content of the forming auxiliary agent is 1-10 wt%. The preparation method of the adsorbent provided by the invention is simple in preparation process and low in production cost, and the prepared hydrogen fluoride has excellent adsorption performance and is difficult to adhere and cake after being used.

This invention discloses a highly crosslinked resin, its preparation method, and its application in the adsorption of 5-hydroxymethylfurfural. Using styrene as a monomer and chloromethylstyrene as a crosslinking agent, this invention prepares a highly crosslinked resin with high hydrophobicity and high specific surface area using the Davankov post-crosslinking method. The BET specific surface area of ​​the highly crosslinked resin of this invention is 810–1193 cm². 2 / g, with an average pore size of 2.043–2.601 nm and a micropore volume of 0.159–0.328 cm³. 3 / g. The highly cross-linked resin exhibits high adsorption performance and selectivity for 5-hydroxymethylfurfural, with a maximum adsorption capacity of 182.3 mg / g. It reaches equilibrium within 30 minutes of adsorption and demonstrates good elution and recyclability of the adsorbed 5-hydroxymethylfurfural, enabling efficient adsorption and separation of 5-hydroxymethylfurfural.

The utility model relates to carbon dioxide capture technology field, specifically disclose a kind of carbon dioxide capture device, comprising: pretreatment mechanism, pretreatment mechanism includes flue gas exhaust pipe and is installed on the pretreatment component of flue gas exhaust pipe, pretreatment component includes temperature regulating equipment, desulfurization bin and dust bin, carbon capture mechanism, carbon capture mechanism includes the second transmission elbow pipe connected in the lower surface of dust bin, the second transmission elbow pipe is connected with absorption bin away from dust bin one end, absorption bin inside includes amine base compound solution;The device can realize the effect of absorbing carbon dioxide by cooperating with physics and chemistry by setting temperature regulating equipment, desulfurization bin and the pretreatment component of dust bin and absorption bin, finally carbon dioxide sensor detects that carbon dioxide content in flue gas is qualified only to automatically open electromagnetic valve and carry out smoke exhaust operation.

The utility model discloses a kind of high-capacity strong magnetic fishing tools, including upper joint and lower joint, the upper joint and lower joint between being provided with magnet frame, the magnet frame two ends are respectively provided with magnet frame chuck;The magnet frame is uniformly distributed with a plurality of sector-shaped clamping grooves on circumference, recess is opened in the magnet frame chuck with sector-shaped clamping groove adaptation, V-shaped flow guide groove is arranged between adjacent sector-shaped clamping groove;Fan form magnet structure is formed 360 ° strong magnetic field, can better improve adsorption effect, improve milling efficiency;Adopt clamping groove type design, magnet installation is simpler, need not additional fastener to be fixed, and falling risk is lower, and sector-shaped clamping groove has certain protective effect to magnet;Magnet piece design, maintenance replacement cost is low.