36results about How to "Efficient Adsorption Separation" patented technology

The invention belongs to the technical field of material preparation and separation, and relates to preparation of lithium/rubidium ion adsorbing materials, in particular to a preparation method and application of a modified hollow mesoporous silicon sphere adsorbent. Hollow mesoporous silicon spheres (HSs) are synthesized, a manganese-based lithium ion sieve (HMO) is supported on the surface of the hollow mesoporous silicon spheres (HS), and finally, 3-aminopropyltriethoxysilane (APTES) is modified to form the modified hollow mesoporous silicon sphere adsorbent. Synthetic process steps are simple, the prepared micro-nano hollow mesoporous silicon spheres have the advantages of large specific surface area, modifiable surface hydroxyl, good mono-dispersity, good particle size and duct size adjustability and the like, the surface of the micro-nano hollow mesoporous silicon spheres with a high specific surface is modified, and the adsorbing capacity of the materials is greatly improved. The manganese-based lithium ion sieve and the APTES are compounded with the micro-nano hollow mesoporous silicon spheres to obtain the modified hollow mesoporous silicon sphere adsorbent with unique physical and chemical properties, and lithium/rubidium ions can be efficiently adsorbed and separated in a high-selectivity manner.

The invention provides a preparation method and application of a novel hierarchical pore composite material. According to the material, a hierarchical pore material is prepared from cotton as a raw material by adopting cellulose nanocrystallines and CTAB as two mold plates, and then the hierarchical pore material is subjected to modifying by using lanthanum nitrate to prepare the novel hierarchical pore composite material. According to the method, the hierarchical pore composite material with the high surface area is prepared by adopting cotton hydrolysis products and the CTAB as the mold plates, the composite material has a continuous controllable hole structure, and further the composite material is subjected to modifying by using the lanthanum nitrate, so that the relatively high adsorption performance is realized, and phosphorus with the low concentration in environments can be adsorbed.

The invention discloses a preparation method of a TiO2/PAN nanofiber membrane. The method comprises the specific preparation steps that polyacrylonitrile powder is dissolved to obtain a polymer solution; TiO2 nanocrystals are dispersed in the polymer solution to obtain a spinning solution; the spinning solution is sucked into a syringe, the syringe is fixed on an injection pump of electrospinningequipment, a spinneret is connected to a positive electrode of a high-voltage power supply at the same time, a receiving plate is connected to a negative electrode of the high-voltage power supply andcovered with aluminum foil, and electrospinning is conducted to obtain the TiO2/PAN nanofiber membrane. The preparation method is easy to operate, short in process flow and suitable for wide popularization and application, and meanwhile further has excellent catalytic and mechanical properties and broad application prospects.

The invention relates to a sponge containing bamboo charcoal composition and the process for preparation, wherein the sponge comprises 10-60% of bamboo charcoal, the preparing process comprises making bamboo charcoal powder, mixing with sponge raw material, mixing and placing into die arrangement, carrying out foaming formation, finally cooling down and demoulding.

The invention relates to a method for absorbing and separating a human prothrombin complex by utilizing an expansion bed, comprising the following steps: (a) separating cryoprecitation from melted refrigerated plasma by using a refrigeration type continuous flow centrifuge, and collecting supernate as a raw material; (b) carrying out stable expansion on an expansion bed by using a buffer solution A, wherein the buffer solution A is 0.05mol/L1tris-citric acid with the PH value of 7.0; (c) rapidly switching into a feed solution after the expansion bed is in stable balance, stopping feeding and rapidly switching into the buffer solution A when breakthrough points reaches 5-10%, and washing in an expanded mode; and (d) switching into buffer solutions of 0.4mol/L NaCl and 1.6mol/L NaCl after washing, carrying out gradient elution in a stationary bed mode, and collecting the protein elution peak of the buffer solution of 1.6mol/L NaCl to obtain a prothrombin complex crude product.

The invention belongs to the technical field of metal organic skeleton materials, and discloses a temperature-sensitive metal organic skeleton material, a preparation method, and applications thereof. In the preparation method, copper perchlorate, pyrazine, and pyrazine-2,3-dicarboxylic acid (double organic ligands) are stirred in a solvent at a room temperature to prepare the temperature-sensitive metal organic skeleton material. The temperature-sensitive metal organic skeleton material has a flexible skeleton structure, which can generate skeleton swelling absorption. The temperature-sensitive metal organic skeleton material has different swelling conversion pressures on alkene and alkane, so the temperature-sensitive metal organic skeleton material has a high selectivity on alkene and alkane, can carry out skeleton structure swelling absorption on alkene at the temperature of 273 K, and carry out skeleton structure contraction desorption at the temperature of 298 K, and thus desorption regeneration is easy for the skeleton material. The temperature-sensitive metal organic skeleton material can be used as an efficient energy-saving absorption separating material in the field of alkene/alkane separation and has a vast application prospect.

The invention provides a nanofiber foam based oil gas trapping device and a preparation method thereof. The nanofiber foam based oil gas trapping device is characterized in that: it includes an gas collection pump in connection with a gas delivery pipe, the gas delivery pipe is connected to an oil-gas trapping assembly, the oil-gas trapping assembly is connected to an exhaust pipe and a collection pipe, and the collection pipe is connected to an oil substance recycling bin. Specifically, the oil-gas trapping assembly includes a protective box, and the protective box is internally provided with a nanofiber based foam material. The nanofiber foam based oil gas trapping device has the characteristics of simple preparation process, low cost, convenient operation, integrated oil-gas adsorption recovery, high efficiency and continuity, and has wide application at gas stations, oil plants, wharfs and other sites, and in manufacturing industry, surface coating industry and other fields.

Belonging to the technical field of adsorption separation of nicotinamide and nicotinic acid, the invention provides a preparation method and application of zirconium based metal-organic frameworks, and solves the technical problem of difficult adsorption separation of nicotinamide and nicotinic acid by existing conventional separation method. The zirconium based metal-organic frameworks DUT-67 disclosed by the invention is synthesized by solvothermal method, the chemical formula of the zirconium based metal-organic frameworks DUT-67 is Zr6O6(OH)2(tdc)4.3.1H2O.0.6DMF, with certain pore structure and unique binding site, the zirconium based metal-organic frameworks DUT-67 can achieve rapid selective adsorption separation of nicotinamide and nicotinic acid, the separation effect is obvious and the operation process is simple, the utilization rate of nicotinamide and nicotinic acid can be effectively enhanced, and the economic benefits can be improved.

The present invention relates to a kind of shoes, in the concrete, it is a kind of bamboo charcoal anti-bacterial odor destroying shoes. It is formed from sole and upper, said sole is formed from major sole, insole and pad sole which are mutually glued together, and its is characterized by that between pad sole and insole a sole sandwich layer made of bamboo charcoal is set also, and the described upper is composed of instep and liner, between both them also is set an upper sandwich layer made of bamboo charcoal.

The invention provides a hyper-crosslinked resin and its application in adsorption separation of 5-hydroxymethylfurfural. A preparation method for the hyper-cross-linked resin comprises the following steps: S1, mixing an ester monomer, a cross-linking agent, an initiator and a pore forming agent, adding the formed mixture into an aqueous phase containing a dispersing agent, and performing suspension polymerization to obtain precursor resin; and S2, adding a swelling agent and a Lewis acid catalyst into the precursor resin, and performing a post-crosslinking reaction of a suspended double bond to obtain post-crosslinked resin, wherein the ester monomer is one or more selected from the group consisting of ethyl acrylate, butyl acrylate, triethylene glycol dimethacrylate, ethylene glycol dimethacrylate, ethylene glycol diacrylate, methyl methacrylate , glycidyl methacrylate and hydroxyethyl acrylate. The hyper-crosslinked resin provided by the invention has a BET specific surface area of 400 to 1200 m<2>/g, a pore volume of 0.1 to 2.5 cm<3>/g, and an average pore size of 1 to 20 nm.

The invention discloses a carbon-based asymmetric double-crown supermolecule hybrid material, which is prepared by directionally polymerizing calix [4]arene-crown-6-(benzyl methacrylate)crown-6 onto the inner and outer hole walls of a millimeter-sized macroporous-mesoporous carbon sphere, wherein the structural formula of the calix [4]arene-crown-6-(benzyl methacrylate)crown-6 is shown in the specification. The invention also discloses a preparation method of the carbon-based asymmetric double-crown supermolecule hybrid material, the preparation method is simple, and the obtained carbon-basedasymmetric double-crown supermolecule hybrid material can be used for adsorbing and separating radionuclide Cs and has excellent adsorption and separation effects.

The present invention discloses a method for extracting biological products by reverse adsorption. A macroporous adsorption resin is used, a reverse column adsorption manner is used to directly extract weakly polar or non-polar products from biological product liquid containing cells and mycelial fragments, and besides, the extracted products has high purity. The method overcomes a series of disadvantages caused by use of organic solvent extraction in extraction of traditional biological products and also resolves contradiction of strict requirements for column liquid in traditional resin separation. The method is simple in technical processes, has strong selective adsorbability for the products, enables the products to be good in quality, and produces less production waste; and at the same time, online extraction and continuous production of some biological products are realized.

The invention discloses a carbon-based asymmetric naphthalene-containing double-crown supramolecular hybrid material. The material is prepared by directionally polymerizing calix[4]arene-(naphtho)crown-6-(benzyl methacrylate)crown-6 to inner and outer pore walls of millimeter-scale macroporous-mesoporous carbon spheres, and the structural formula of the calix[4]arene-(naphtho)crown-6-(benzyl methacrylate)crown-6 is as the follows. The invention discloses a preparation method of the carbon-based asymmetric naphthalene-containing double-crown supramolecular hybrid material. The preparation method is simple, and the obtained carbon-based asymmetric naphthalene-containing double-crown supramolecular hybrid material can be used for adsorbing and separating radionuclide Cs in high level liquid waste and has an excellent adsorption separation effect.

The invention discloses a millimeter-scale macroporous-mesoporous carbon sphere/calix[4]-crown-6 hybrid material. The millimeter-scale macroporous-mesoporous carbon sphere/calix[4]-crown-6 hybrid material is obtained by directionally polymerizing propenyl calix[4]arene-crown-6 onto the inner and outer pore walls of a millimeter-scale macroporous-mesoporous carbon sphere, wherein the propenyl calix[4]arene-crown-6 has a structural formula which is described in the specification. The invention also discloses a preparation method for the millimeter-scale macroporous-mesoporous carbon sphere/calix[4]-crown-6 hybrid material. The preparation method provided by the invention is simple; and the millimeter-scale macroporous-mesoporous carbon sphere/calix[4]-crown-6 hybrid material prepared by using the preparation method provided by the invention can be used for adsorption and separation of radionuclide Cs in a high-level liquid waste, and has excellent adsorption and separation effects.

The invention discloses an organic porous material for electronic special gas adsorption separation and a preparation method thereof, and a fluorine-containing organic porous framework material product connected by carbon-carbon bonds is obtained according to an aromatic hydrocarbon dehalogenation reaction principle. The material prepared by the invention has an organic nanopore structure and strong hydrophobic property, so that the material has an obvious adsorption effect on electronic special gas due to the structural characteristic.