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1465results about "Ion-exchange process apparatus" patented technology

Method for extracting and purifying flavone in litsea coreana through ultrasonic-assisted eutectic solvent

The invention discloses a method for extracting and purifying flavone in litsea coreana through an ultrasonic-assisted eutectic solvent, and belongs to the technical field of green processing of natural products. The invention provides a method for efficiently preparing litsea coreana flavone by integrating computer prediction, green solvent extraction and resin purification technologies. The method comprises the following steps: firstly, calculating and screening a deep eutectic solvent system with the highest affinity with the litsea coreana flavone on the basis of a COSMO-RS theoretical model, then coupling the optimized DES with an ultrasonic-assisted extraction (UAE) technology, and through the synergistic effect of the DES and the UAE technology, remarkably improving the extraction rate of the litsea coreana flavone and furthest keeping the biological activity of a target component; then, a macroporous resin dynamic adsorption-desorption purification process is linked, so that high-selectivity enrichment and impurity removal of the flavonoid compounds in the crude extract are realized, a high-purity product is obtained, and a complete process route from intelligent screening, efficient extraction to precise purification is finally formed.
Owner:CHONGQING ACAD OF AGRI SCI +1

Adsorbent capable of simultaneously adsorbing bilirubin and cytokines as well as preparation method and application of adsorbent

The invention provides an adsorbent capable of simultaneously adsorbing bilirubin and cytokines and a preparation method and application thereof, and the preparation method comprises the following steps: carrying out suspension polymerization reaction on a styrene monomer and a polyvinyl cross-linking agent in a dispersion medium under the action of a continuous multi-component pore-foaming agent and an initiator to prepare polystyrene-based macroporous resin; carrying out chloromethylation reaction on the polystyrene-based macroporous resin to prepare chlorine balls; carrying out post-crosslinking reaction on the chloromethylated beads to prepare the adsorbent capable of adsorbing bilirubin and cytokines at the same time; the continuous multi-component pore-foaming agent comprises a first pore-foaming agent, a second pore-foaming agent and a third pore-foaming agent of which the solubility parameters are gradually increased in sequence; the temperature of the suspension polymerization reaction is adjusted according to the mass fraction of the polyvinyl cross-linking agent in the monomer mixture and the solubility parameter of the continuous multi-component pore-foaming agent, and the monomer mixture is composed of styrene monomers and the polyvinyl cross-linking agent. The bilirubin and cell factors can be adsorbed at the same time, and the safety of blood purification is improved.
Owner:JAFRON BIOMEDICAL

High-molecular adsorption material with high selectivity on platinum group metals as well as preparation method and application of high-molecular adsorption material

The invention provides a high-molecular adsorption material with high selectivity on platinum group metals as well as a preparation method and application of the high-molecular adsorption material, and belongs to the technical field of material science. Comprising the following steps: (1) preparing a methanol solution containing platinum group metal ions, and adding a functional monomer mixture and modified graphene oxide to form a pre-assembled compound; (2) adding a cross-linking agent and an initiator, removing oxygen, and polymerizing to obtain a polymer; and (3) grinding the polymer, eluting metal ions, washing to be neutral, and drying. The high-molecular adsorption material provided by the invention takes modified graphene oxide as a support body, template molecules and specific functional monomers (4-vinylpyridine and 2-mercaptobenzimidazole) are combined to form a pre-assembled compound, then a cross-linking agent and an initiator are added, recognition sites are fixed through cross-linking polymerization, and finally, the high-molecular adsorption material is obtained after the template molecules are eluted. The adsorbent is high in adsorption rate, capable of specifically adsorbing platinum group metal, good in stability and reproducibility and capable of being repeatedly used.
Owner:CENT SOUTH UNIV +2

Water softener

The present application relates to the technical field of water treatment devices, and provides a water softener. The water softener comprises a water softening valve, a connection assembly, a water path assembly, and resin tanks. The water softening valve comprises a valve body, a valve element assembly, a driving part, and a transmission mechanism. Both the valve element assembly and the driving part are disposed within the valve body, and the driving part is in transmission connection with the valve element via the transmission mechanism. The connection assembly is in communication with the water softening valve and is located at one side of the water softening valve. The connection assembly is provided with a drain passage. The driving part is configured to drive the transmission mechanism to act, so as to control opening of the drain passage. The water path assembly is in communication with the connection assembly, and is used to guide the flow of water. The resin tanks are used to soften water flowing therethrough. In the present application, a driving apparatus is employed to drive the transmission mechanism to act, so that the transmission mechanism can control the valve element to control water-path switching, and can control the opening of passages within the connection assembly, thereby enabling full control of the entire water path, simplifying control logic, improving control efficiency, reducing the number of control devices, and lowering the failure rate of the water path control assembly.
Owner:FOSHAN SHUNDE MIDEA WATER DISPENSER MFG +1

Ion exchange filter

An ion exchange filter (100) comprising: an outer housing (1) comprising a coolant inlet (2) and a coolant outlet (12); and an ion exchange device (11) configured to be disposed within the outer housing (1). The ion exchange device (11) comprises: an inner housing (5) configured to be inserted within the outer housing (1), the ion exchange filter (100) further comprising an inlet chamber (16) defined between a bottom portion of the inner housing (5) and a bottom portion of the outer housing (1); an ion exchange element (6) disposed within the inner housing (5) and configured to adsorb conductive ions in a coolant liquid; and an upper cover (10) removably connected to the inner housing (5) and to the outer housing (1), the ion exchange filter (100) further comprising an outlet chamber (73) defined between a top portion of the inner housing (5) and the ion exchange element (6).
Owner:MANN HUMMEL GMBH

Method and device for purifying high-purity boron oxide

The invention relates to the technical field of preparation of high-purity boron oxide, and discloses a purification method of high-purity boron oxide and a device thereof, and the purification method comprises the following steps: step 1, mixing crude boron oxide with a liquid metal alloy, and dissolving metal impurities through gradient temperature control; 2, applying ultrasonic treatment to the mixed system, introducing a vortex field, and stripping impurities on the surface of the boron oxide; 3, a liquid metal phase and a boron oxide solid phase are separated through cooperation of a magnetic field and a pulse high-voltage electrostatic field; 4, non-metal ion impurities are removed through a gradient porous ceramic adsorption bed; and step 5, melting boron oxide in vacuum and carrying out gradient cooling crystallization. By adopting the technical scheme of a Ga-I n-Bi-Er quaternary liquid alloy system, the technical effect of selective targeted removal of metal impurities is achieved, and compared with a liquid metal system depending on single phase solubility difference in the prior art, the defect that efficient chelating and dynamic settling separation of the impurities cannot be achieved at the same time is overcome.
Owner:WUHAN TUOCAI TECH CO LTD

Preparation method of acid-resistant chlorine-resistant selective palladium adsorbent

The invention discloses a preparation method of an acid-resistant chlorine-resistant selective palladium adsorbent, and relates to a preparation method of a selective palladium adsorbent. The invention aims to solve the technical problems of poor structural stability, low adsorption capacity, poor selectivity and difficulty in cyclic regeneration of the existing palladium adsorbent in strong acid and high chlorine systems. According to the preparation method, fumarinonitrile is taken as a cyanogen-containing monomer, zinc chloride is taken as a catalyst, a triazine skeleton network is constructed through an ionothermal trimerization reaction, no organic solvent or expensive catalyst is needed in the process, the reaction condition is mild, the process is simple and convenient, and good environmental compatibility is achieved; the PdCl4 < 2->-doped porous carbon material provides abundant coordination sites, has a relatively large specific surface area and a developed porous structure, can effectively promote mass transfer and adsorption of metal ions, can form stable complexation with PdCl4 < 2->, shows extremely high palladium adsorption capacity and selectivity, and can still keep structural integrity and adsorption activity under strong acid and high chlorine conditions.
Owner:NANCHANG HANGKONG UNIVERSITY

Cation exchange membrane and manufacturing method therefor

Provided is a cation exchange membrane in which when a hydroxide aqueous solution showing strong alkalinity is produced by using an electrodialyzer, significant swelling in the cation exchange membrane in contact with the hydroxide aqueous solution is suppressed, destruction of a cation exchange resin due to polyvalent cations contained as impurities in a raw material inorganic salt is suppressed, and the capacity of the cation exchange membrane is hardly lowered. This cation exchange membrane is characterized by having an electric resistance of 2.0-5.0 (Ω∙cm2), as measured at 25ºC in 0.5 mol / L of a NaCl aqueous solution, and a dimensional change rate of at most 1.2%.
Owner:ASTOM CORPORATION

Percolation device and preparation method of phyllanthus emblica extract

The invention provides a percolation device and a preparation method of a phyllanthus emblica extract. The percolation device comprises a percolation tank, a pressing device and a plurality of separation structures, the preparation method of the emblic leafflower fruit extract comprises the following steps: firstly, coarsely crushing and soaking an emblic leafflower fruit medicinal material, then percolating the emblic leafflower fruit medicinal material in a percolating device, and collecting percolate; the preparation method comprises the following steps: extracting a percolate, adsorbing the percolate through macroporous resin, eluting with water and ethanol in sequence, combining an obtained lower column liquid and a water washing liquid, separating through a ceramic membrane and an ultrafiltration membrane in sequence to obtain a micromolecular functional sugar part, decolorizing with activated carbon, eluting with an ethanol solution, concentrating and drying to obtain a polyphenol part, and proportioning to obtain a target product. According to the technical scheme provided by the invention, active micromolecular functional sugar and polyphenol components in the phyllanthus emblica can be extracted and enriched at one time. The extract is light in color and good in solubility, so that the problems of single extracted component and inconvenience in application due to poor color and solubility in the traditional process are effectively solved.
Owner:HUNAN YIXIUZI BIOTECHNOLOGY CO LTD

Equipment and method for preparing electronic-grade salicylic acid solution

The invention discloses equipment and a method for preparing an electronic-grade salicylic acid solution. The equipment comprises an acidification tank, an alkali tank, a micron filter, an anion filter, a cation adsorption column and a nano filter. The acidification tank is used for loading a salicylic acid solution and an acidic substance, and the alkali tank is used for loading an eluent. The method comprises the following steps: firstly, removing large impurities from a salicylic acid solution and acidic substances through a micron filter, then conveying the salicylic acid solution and acidic substances to an anion filter, adsorbing salicylic acid through anion adsorption resin to obtain phenol, removing the phenol, then introducing an eluent, washing off the salicylic acid solution, conveying the salicylic acid solution to a cation adsorption column to remove metal ions, and finally conveying the salicylic acid solution and the acidic substances to a nano filter to obtain the purified salicylic acid. And reducing the granularity of the salicylic acid solution to obtain the electronic-grade salicylic acid solution. The electronic-grade salicylic acid solution has the advantage of strong selective complexing ability to metals, and has a good wet etching effect in the integrated circuit manufacturing process.
Owner:SHENZHEN DIDAO MICROELECTRONICS TECH CO LTD

Method for separating lithium and boron in solution with high boron-lithium ratio

The invention discloses a method for separating lithium and boron in a solution with a high boron-lithium ratio. The separation method comprises the following steps: carrying out primary homogeneous electrodialysis concentration separation on a solution with a high boron-lithium ratio under an alkaline condition to prepare primary lithium-rich concentrated water; diluting the first-stage lithium-rich concentrated water to prepare first-stage diluted lithium-rich concentrated water; performing high-pressure RO concentration on the primary diluted lithium-rich concentrated water under an acidic condition to prepare lithium-rich RO concentrated water; performing first-stage homogeneous phase electrodialysis concentration separation on the lithium-rich RO concentrated water under an acidic condition to prepare first-stage lithium-rich concentrated water; carrying out adsorption boron removal and desorption treatment on the first-stage lithium-rich concentrated water by adopting boron removal adsorption resin under an alkaline condition to prepare mixed lithium-rich concentrated water and boron-containing desorption liquid; carrying out MVR (mechanical vapor recompression) evaporation on the mixed lithium-rich concentrated water for preparing battery-grade lithium carbonate; and mixing the secondary boron-rich fresh water with the boron-containing desorption solution, and carrying out MVR evaporation to obtain a boric acid product. According to the method, a reasonable boron removal process combination is adopted, and boron in the solution with the high boron-lithium ratio is removed.
Owner:ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD

Separation method for separating ytterbium and lutetium by using phosphate adsorbent

The invention relates to the technical field of rare earth element separation methods, in particular to a method for separating ytterbium and lutetium by using a phosphate adsorbent, which comprises the following steps: loading a phosphate solution on a porous solid-phase carrier by using a vacuum impregnation method, and carrying out reduced pressure evaporation and drying to obtain a phosphate solid adsorbent; filling an exchange column with the solid adsorbent to obtain the exchange column filled with the solid adsorbent; enabling a nitric acid solution containing ytterbium and lutetium to flow through an exchange column filled with a solid adsorbent to complete a column adsorption process; and performing elution, performing desorption by using a desorption solution to obtain the regenerated exchange column filled with the solid adsorbent, respectively collecting the ytterbium solution and the lutetium solution, completing the separation process, and repeating the steps. By adopting the steps, the separation of ytterbium and lutetium is directly realized from the nitric acid solution containing ytterbium Yb and lutetium Lu through column adsorption separation, leaching and desorption processes, and high-purity ytterbium and lutetium products are prepared.
Owner:NANHUA UNIV

DESs-modified GO-coated MOF808 composite material, preparation method and application thereof, and method for detecting content of tolcapone and entacapone in environment

The invention provides a DESs modified GO (at) MOF808 composite material, and the DESs modified GO (at) MOF808 composite material is prepared by the following steps: modifying the composite material GO (at) MOF808 with DESs to obtain GO (at) MOF-808 (at) DESs; the GO-coated MOF808 is prepared from the following raw materials in parts by weight: 56 to 84 parts of ZrCl4, 18.4 to 27.6 parts of trimesic acid (H3BTC) and 12 to 18 parts of graphene oxide (GO). The invention further discloses a preparation method of the GO-coated MOF808. The invention also provides a preparation method of the composite material, and a method for detecting the content of tolcapone and entacapone in an environment. According to the invention, the DES-modified GO-coated MOF808 composite material is used as an adsorption matrix, and the adsorption capacities of the adsorption material to entacapone and tolcapone can reach up to 86.50 + / -4.79 mg / g and 126.21 + / -2.72 mg / g; the method for removing and detecting entacapone and tolcapone in water by combining D-muSPE with DES (at) GO (at) MOF808 as an adsorption material with LC-MS / MS is simple to operate, high in sensitivity and high in removal rate.
Owner:FUJIAN UNIV OF TRADITIONAL CHINESE MEDICINE

Alcohol pretreatment to remove water to prepare oleaginous material for subsequent alcohol-based solvent extraction

Devices, systems, and techniques can be provided for processing an oil-containing material with an alcohol-based solvent to extract oil from the material. In some examples, a system includes a pretreatment dehydration vessel that removes water from the oil-containing material prior to processing the oil-containing material in an extractor to extract oil from the material. An alcohol-based solvent may also be supplied to the dehydration vessel to remove water from the oil-containing material, thereby generating a dehydrated material that can be extracted in a downstream extractor.
Owner:CROWN IRON WORKS COMPANY

Red mud and beta zeolite for simultaneous dehalogenation and conversion of plastic derived oil to fuels and chemicals

A hybrid catalyst for simultaneous dehalogenation and cracking of plastic derived oil includes a plurality of composite particles, wherein each of the composite particles includes red mud particles and beta zeolite particles. A process for upgrading plastic derived oil includes contacting the plastic derived oil with the hybrid catalyst. A system for upgrading plastic derived oil includes an FCC reactor containing the hybrid catalyst.
Owner:SAUDI ARABIAN OIL CO

Three resin reactors in series peptide synthesizer

A Solid Phase Peptide Synthesis (SPPS) device and method of using the same for manufacturing peptides is taught herein. The system comprises at least two reactors, each reactor including a quantity of SPPS resin. The reactors are positioned in series. A de-protecting agent is added to the first reactor and then transferred to the second and third reactors, in series, thereby operating to de-protect the protected N-group. Wash solvent is added to the first reactor and then transferred to the second and this operation repeated several times. Likewise, an amino acid activated ester solution is added, in series, to the first, second and third reactors, thereby operating to couple the amino acid to the de-protected N-group. Wash solvent is added to the first reactor and then transferred to the second and this operation repeated several times prior to the next cycle. The use of the reactors in series reduces the overall solvent required. Online LCMS is also used to monitor progress and identity of reactions happening within the solid phase resin particles.
Owner:ELI LILLY & CO

Titanium-based lithium ion porous adsorption membrane material, self-assembly preparation method and application thereof

The application belongs to the technical field of porous adsorption membrane materials, and discloses a titanium lithium ion porous adsorption membrane material and a self-assembly preparation method and application thereof. The preparation method comprises the following steps: dissolving a film-forming polymer in a dispersion liquid containing MXene nanosheets to form a uniform precursor liquid; the MXene nanosheet is a carbide, nitride or carbonitride of a transition metal with a single-layer structure; dispersing a titanium lithium composite oxide in the precursor liquid to form a casting solution; coating the casting solution on a support, and then performing phase inversion by using pure water to obtain a matrix film; placing the matrix film in a lithium elution liquid for immersion washing, replacing lithium ions in the matrix film, and causing a self-assembly reaction of the titanium lithium composite oxide in the matrix film, so that the titanium lithium ion porous adsorption membrane material is obtained. The application innovatively introduces MXene nanosheets and a polysulfone matrix film, fixes the MXene nanosheets on the polysulfone matrix film as an in-situ growth substrate of the titanium lithium composite oxide, and the obtained membrane material has a high adsorption capacity.
Owner:SOUTHWEST JIAOTONG UNIV

Method for deeply separating and extracting gallium

The invention discloses a method for deeply separating and extracting gallium, and belongs to the technical field of non-ferrous metallurgy. According to the method for deeply separating and extracting gallium, the problems that an existing adsorption material is generally poor in chemical stability, insufficient in selectivity and adsorption capacity and the like in a gallium-containing solution with high alkalinity and coexistence of multiple components are solved, and the gallium is deeply separated and extracted on the basis of the coordination characteristic of gallate ions. A covalent organic framework adsorption material with a directional recognition site and an ordered pore channel structure is designed and constructed. According to the material, an organic porous framework with high crystallinity and large specific surface area is constructed through dynamic covalent chemistry, and efficient and high-selectivity adsorption of gallate ions can be realized. The method is suitable for efficiently capturing and enriching gallium from a high-alkalinity complex solution, and a reliable technical solution with application prospects is provided for efficient recycling of gallium resources.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY +1

Systems and methods for generating radionuclides

Systems and methods for generating radionuclides, such as radium-224. Systems herein may include a first cartridge having a first opening, a second opening, and a chamber therebetween having a first resin having affinity for thorium-228 and bismuth-212; a second cartridge having a first opening, a second opening, and a chamber therebetween having a second resin having affinity for thorium-228 and bismuth-212, a third cartridge having a first opening, a second opening, and a chamber therebetween comprising a third resin having affinity for thorium-228 and bismuth-212, a fourth cartridge having a first opening, a second opening, and a chamber therebetween having a third resin having affinity for lead-212; wherein a continuous flow path is formed from a top of the first cartridge though the second cartridge, through the third cartridge, and to a bottom of the fourth cartridge during system use.
Owner:PERSPECTIVE THERAPEUTICS INC

Rubidium and cesium adsorbent as well as preparation method and application thereof

The invention provides a rubidium and cesium adsorbent and a preparation method and application thereof. The preparation method comprises the following steps: providing a doped and modified Prussian blue analogue, wherein the Prussian blue analogue comprises a Prussian blue matrix material and a transition metal doping element doped in the Prussian blue matrix material; granulating a mixed material containing the doped and modified prussian blue analogue and a granulating agent to obtain a rubidium and cesium adsorbent precursor; a mixed reaction system containing the rubidium and cesium adsorbent precursor and a surface modifier are subjected to a reaction, the surface modifier contains one or more functional structures of an amino group, a sulfonic group, a carboxyl group, a sulfydryl group, an acryloyloxy group, an epoxy group, a crown ether structure and a calixarene structure, and therefore the rubidium and cesium adsorbent is obtained. Through a multi-aspect synergistic strategy of transition metal doping, granulation and surface modification, the prepared rubidium and cesium adsorbent has good stability and high adsorption capacity, and has strong selectivity to Cs < + > / Rb < + >.
Owner:SHAANXI IRON & STEEL GRP YUHONG ENVIRONMENTAL PROTECTION TECH CO LTD

ION EXCHANGER

Ion exchanger (1) used in a cooling system (50) of a fuel cell system, comprising: a connecting pipe portion (2) having both end portions configured to be respectively connectable to a predetermined pipe of the cooling system, the connecting pipe portion having a first flow path (R1) allowing a coolant introduced from one side to flow therethrough to the other side; a housing portion (3) intended to communicate with the connecting pipe portion; and a storage body (4, 5) mounted on the housing portion, having a second flow path (R2) in which a part of the coolant introduced into the connecting pipe portion branches and flows out of the connecting pipe portion and flows into the connecting pipe portion again, and stores an ion exchange resin (18) in the second flow path, wherein: an installation state of the storage body (4, 5) with respect to the housing area (3) can be changed in a variety of ways; and a proportion of the coolant in the connecting pipe region (2) flowing to the second flow path (R2) can be changed by changing the installation state of the storage body (4, 5), in which the storage body has a part mounted to project to the inside of the connecting pipe portion (2), and an inlet channel through which the coolant from the connecting pipe portion is introduced into the second flow path (R2) at the projecting part, and an outlet channel through which the coolant from the second flow path is discharged to the connecting pipe portion, and the installation state of the storage body (4, 5) can be changed by rotating the storage body by a predetermined angle with respect to an installation direction of the storage body with respect to the housing area (3) as an axial center, further comprising a movable piece (25), one end of which is pivotally mounted so that it is rotatable, and the other end of which is a free end on the connecting pipe area-side end face (10) of the storage body (4, 5) which projects to the inside of the connecting pipe area (2), in which a free end side of the movable piece (25) changes between a state in which it is positioned further on the upstream side of the first flow path (R1) than a rotation axis side and a state in which it is positioned further on the downstream side of the first flow path than the rotation axis side by changing the installation state of the storage body (4, 5).
Owner:TOYODA GOSEI CO LTD

Ion exchange membrane, method for manufacturing ion exchange membrane, and ion exchange membrane cell

A problem to be solved by the present invention is to provide an ion exchange membrane that can increase the surface area of a membrane effective for ion permeation, properly decreases the electric resistance of a flow passage between membranes and the attachment of a contaminating substance thereto, also enhances the mechanical strength of the membrane itself, and further, is less deformed or damaged due to swelling over a wide range of salt concentrations and even if there is a large difference in salt concentration between two solutions contacted with the membrane. The present invention provides an ion exchange membrane having a concavo-convex shape, wherein the ion exchange membrane has a flat portion in the vicinity of ends, and a convex curve and a concave curve resulting from curvatures of the ion exchange membrane itself form a convex part and a concave parts, respectively, in the concavo-convex shape of the ion exchange membrane, wherein the convex part extends linearly or curvedly, the concave part between the convex parts is flat, the concave part includes a first concave part adjacent to the convex part in the lateral direction of the convex part, along the longitudinal direction of the convex part, the convex part has an apex and a side face in the longitudinal direction, and the side face is inclined from the apex toward the first concave part.
Owner:YAMAGUCHI UNIV

SEMI-G5-grade high-purity NMP (N-Methyl Pyrrolidone) production process and system

The invention provides a production process of SEMI-G5-grade high-purity NMP (N-Methyl Pyrrolidone), which is characterized in that metal ions, magnetic foreign / non-magnetic foreign particulate matters and the like of conventional industrial-grade NMP are completely removed by adopting a multi-section rectification, resin adsorption and precise filtration process, so that the SEMI-G5-grade NMP reaches the SEMI-G5 grade in an ultra-clean high-purity reagent; and the use requirements on the ultra-clean high-purity NMP in the fields of semiconductors, integrated circuits and novel display are met.
Owner:CHONGQING ZHONGRUN NEW MATERIALS CO LTD

A method for separating actinium from an irradiated thorium target

The present application relates to a kind of methods for separating actinium from irradiated thorium target, belong to medical radioisotope manufacturing technical field, solve the problem that thorium element and lanthanide element impurity content in final actinium product in prior art is higher.The present application discloses a kind of methods for separating actinium from irradiated thorium target, first, irradiated thorium target is dissolved, then using cation exchange resin column, UTEVA or TK200 resin extraction column, DGA resin extraction column, LN resin extraction column four-stage series separation purification process, obtain final actinium product.Actinium is efficiently and selectively recovered, and the thorium element and lanthanide element impurity content in final actinium product is significantly reduced.
Owner:STATE POWER INVESTMENT NUCLIDES TONGCHUANG (CHONGQING) TECH CO LTD

Method for preparing adsorption material for simultaneously extracting rubidium and cesium by utilizing soft / hard template co-assembly and application

The invention discloses a method for preparing an adsorption material for simultaneously extracting rubidium and cesium by using soft / hard template co-assembly and application, and belongs to the technical field of adsorption material preparation. The invention aims to solve the problems that a traditional adsorbent is poor in selectivity to similar alkali metal ions, slow in mass transfer rate, insufficient in acid environment stability and lack of an adsorption material for specific recognition of rubidium and cesium ions. The method comprises the following steps: 1, preparing cesium-imprinted hierarchical-pore mesoporous silica; 2, Cs / Rb-HMS is prepared; according to the invention, a macroporous-mesoporous channel is constructed; wherein a large hole (PS template) provides a rapid mass transmission channel, and an ion diffusion path is remarkably shortened, so that target ions can rapidly reach adsorption sites in the material; mesopores (Pluronic F127 template) provide a huge specific surface area and load a large number of Cs < + > imprinting sites and Rb < + > imprinting polymer layers, so that high adsorption capacity to Cs < + > and Rb < + > is ensured.
Owner:NORTHEAST DIANLI UNIVERSITY

Regeneration method and system of polyolefin elastomer waste catalyst adsorbent bed

The invention provides a regeneration method of a polyolefin elastomer waste catalyst adsorbent bed layer. The regeneration method comprises the following steps: step 1) discharging a material in an adsorbent bed to be treated; 2) washing the interior of the adsorption bed to be treated by using an organic solvent, wherein the temperature of the organic solvent is 50-170 DEG C; (3) introducing heated regenerated gas into the adsorption bed to be treated; raising the temperature of the waste catalyst adsorbent bed layer in the adsorption bed to 420-520 DEG C; and 4) introducing heated air into the adsorption bed, maintaining the temperature at 420-520 DEG C, and carrying out air scorching treatment on the waste catalyst adsorbent bed layer. The effective regeneration of the adsorbent can be realized, the adsorption and performance are recovered, and the long-period operation of the adsorbent is ensured.
Owner:BEIJING PETROCHEM ENG

Production of ethylene and propylene from pyrolysis plastic oil

ActiveUS12421457B2Ion-exchanger regenerationReclaimed rubber adhesivesMaterials scienceEthylene
The disclosure relates to the purification and treatment of oil produced from the liquefaction of waste polymer like for instance the pyrolysis of waste plastic via the polymerization of dienes prior to further treatments.
Owner:TOTALENERGIES ONETECH

Separation device using shaped particles

A separation device comprising a plurality of shaped particles. Each shaped particle comprising a first major surface defined by a first perimeter having at least three edges, a second major surface defined by a second perimeter having the same number of edges as the first perimeter, and a peripheral surface comprising a plurality of walls disposed between the first and second major surfaces. The peripheral surface intersects the edges of the first and second perimeters and the average radius of curvature at the intersections is no greater than 50 micrometers. The length of the particle is no greater than 5 millimeters and the length of the particle is at least 2 times greater than the thickness of the particle. Each of the plurality of shaped particles is substantially the same size.
Owner:3M INNOVATIVE PROPERTIES CO

Zirconium-titanium bimetallic MOF hollow microsphere adsorbent as well as preparation method and application thereof

The invention relates to the technical field of blood purification materials, in particular to a zirconium-titanium bimetal MOF hollow microsphere adsorbent and a preparation method and application thereof. The adsorbent is based on a Zr / Ti bimetallic node and a phosphonic acid-carboxylic acid mixed ligand, a composite MOF hollow microsphere structure with high stability and high specific surface area is constructed through a solvothermal and polymerization synergistic reaction in a water-in-oil suspension system, a phosphonic acid group and Zr are strongly coordinated to improve the stability of a framework, and the composite MOF hollow microsphere structure has a high specific surface area. The carboxylic acid group keeps the hydrophilicity of the pore channel; meanwhile, a cross-linked network of acrylamide and N, N '-methylene bisacrylamide penetrates through crystal gaps in the balling process, so that the material has excellent mechanical strength and fluid stability; and a sulphobetaine amphoteric polymer brush layer is constructed on the surface of the MOF through endogenous initiation point modification and surface in-situ controllable free radical polymerization technologies, so that protein adsorption and platelet adhesion are effectively inhibited, the blood compatibility is remarkably improved, and meanwhile, the channel accessibility is maintained to promote rapid diffusion and adsorption of bilirubin.
Owner:ZINGKE (CHONGQING) ADVANCED MATERIALS RES INST CO LTD