133 results about "Polymer adsorbent" patented technology

The invention discloses carboxymethyl cellulose of wheat straw. The wheat straw is crushed and subjected to pretreatment with dilute alkali, bleaching and alkalization, and then reacts with chloroacetic acid before being etherified so as to obtain the carboxymethyl cellulose of the wheat straw; and the carboxymethyl cellulose of the wheat straw is subjected to graft copolymerization together with acrylic acid to obtain a carboxymethyl cellulose-based polymer adsorbent. The adsorbent is applied to the treatment of wastewater containing heavy metal ions, has high adsorbability and large adsorption capacity and ensures high metal ion removal rate. After treatment, the adsorbent has high stability and can completely meet the requirements of heavy-metal wastewater treatment; and the treated wastewater is clear and transparent without odor and can meet the national emission standard. The invention has the advantage that the resources of raw materials are wide, the cost is low, the use of waste is realized, and secondary pollution caused by burning of the wheat straw is avoided, thus being conducive to environmental protection.

The invention relates to an effective method of extracting puerarin and green food medicines made by it, and the steps include: using alcohol to soak, extracting several times, evaporating the alcohol, converting the extract into water solution, filtering out suspended substances; adopting polymeric absorbent to absorb, concentrating and drying and obtaining Gegen extract, by absorbing and eluting, further making flavone glycoside and terpene inner ester reach the specified indexes. Putting the extracted puerarin in drinks, beers, distilled spirits, teas, milk powders, etc; or adding the puerarin in the tablets, capsules, and electuaries or injectas. The pure plant natural food has proper taste. The Gegen is moderate, peppery and sweet, disperses the internal coldness and relieves the heat of muscle, promotes blood circulation, quenching the thirst and detoxicates alcohol toxicity, etc. and it has good curing effect on high blood pressure, coronary heart disease, heartstroke, dispels the wind, etc.

The invention discloses a C12-C13 long-chain binary acid refining method, which comprises the steps of: adding crude C12-C13 long-chain binary acid produced through a biological fermentation process into a dissolving tank and adding activated carbon or resin into the dissolving tank at the same time; adding purified water or deionized water into the dissolving tank, agitating and heating to enable the binary acid to be fully dissolved in the water and insoluble substances to be absorbed by the activated carbon or the resin; using nitrogen to press solid-liquid mixtures in the dissolving tank into a pressure-resistant filter and removing the activated carbon to obtain clear liquid; cooling the clear liquid and using a centrifuge for centrifugal dehydration to obtain a wet filter cake; and using purified water or deionized water to wash the wet filter cake and drying the filter cake to obtain the refined binary acid. By using a low-cost, nontoxic, hazard-free, safe and environment-friendly solvent to refine the crude long-chain binary acid, the refined long-chain binary acid which can be used for a subsequent polymerization process is obtained.

The invention relates to a preparation method of aminopyridine modified resin, which comprises the steps of allowing high polymer resin to swell in an organic solvent under backflow, adding an aminopyridine compound with a charge ratio of (1-7):1 to the high polymer resin, and an acid-binding agent at a mole ratio of (1-5):1 to the aminopyridine compound, allowing a mixed reaction system to react for 2-24h at 45-70 DEG C under a stirring condition to form the aminopyridine modified resin, separating, washing sequentially with water, alcohol, acetone and ether, and airing to form the aminopyridine modified resin of which a functional group content is 2.9-4.0mmol FG/g. The method is simple to operate, short in reaction time and convenient in preparation, and the modified resin can be independently used or filled as an adsorbing column, has good adsorbability for metal, particularly rhodium octanoate dimer in industrial waste water, and metal ions, particularly noble metal ions, and has important applications in environmental protection, analytical chemistry, metal ion extraction from waste liquid and the like.

The present invention relates to a plant extract with the action of resisting diabetes, its application and preparation method. The extract is a kind of acetogenins extracted from branck, leaf, trunk, bark, root, seed and fruit skin of annona squamosa plant as raw material. The compound acetogenins can be made into various dosage forms for curing diabetes, and its preparation method can adopt oneor several processes of solvent extraction process, resin adsorption process, supercritical CO2 extraction process and conventional drying process.

The invention discloses a beta-cyclodextrin polymer adsorbent applicable to adsorption of dye and heavy metal ions, and a preparation method and application thereof. According to the method, modifiedbeta-cyclodextrin, obtained by reaction between a silane-protected beta-cyclodextrin derivative and alkenyl anhydride, and heterocyclic olefinic monomers are subjected to free-radical crosslinking copolymerization to obtain the beta-cyclodextrin polymer adsorbent, wherein the structural general formula is shown in the description. The porous large-specific-surface copolymer can be formed during copolymerization between the modified beta-cyclodextrin and the heterocyclic olefinic monomers, and different adsorption sites are provided for the organic dye and the heavy metal ions, so that the adsorption capacity of the adsorbent can be improved greatly, and the mutual inhibition of the organic dye and the heavy metal ions as wells as the poor removal effect can be relieved effectively.

The invention discloses a Pu-aru tea health-improving beverage and its preparation method, which is made by coordinating Pu-aru tea, Yunnan olive, gynostemma pentaphyllum, acanthopanax, pseudoginseng and kudzu root with additives comprising stevia rebaudiana, white sugar and water. After the separation, purification, condensation and drying of ingredients, the Pu-aru tea health-improving beverage is realized. With cool and pleasant taste, the beverage can help reduce fat, lose weight, invigorate blood, removing blood stasis, nourishing human body, preventing the loss of calcium and realizing outstanding health-improving effect. Because macropore polymer adsorbent column layer analysis technology is adopted to separate and purify the raw materials, the invention eliminates the protein and other macro-molecule substances, effectively improve the solubility and product clearness, so as to ensure the full absorption of nutrient and health-improving element in human body and secure bright market prospect.

The invention discloses a fermentation production process of Epothilone B, i.e. a process for increasing the fermentation output of Epothilone B of Epothilone B production bacterial strain sprangium cellulosum. The process comprises the following steps: 1) adding a molecular imprinting polymer adsorbent of the Epothilone B in the fermentation process; 2) selecting soybean meal, corn starch and the like suitable for sprangium cellulosum production; and 3) adding glucose pulses in the fermentation process and the like. So the fermentation production output of the sprangium cellulosum of the epothilone B achieves 50mg / L.

The invention relates to a preparation method of single teicoplanin components, which belongs to the field of preparation of medicaments with microbial ingredients. The method comprises the following steps of: decolorizing teicoplanin fermentation liquor through macroporous decolorizing resin, and absorbing the teicoplanin fermentation liquor through macroporous adsorption resin, then desorbing the teicoplanin fermentation liquor, and concentrating the teicoplanin fermentation liquor to obtain a crude teicoplanin extract including the six components of TA2-1, TA2-2, TA2-3, TA2-4, TA2-5 and TA3-1; and dissolving the crude extract in water, and performing chromatographic separation on the dissolved crude extract through polymer microspheres to obtain the six single components, namely TA2-1, TA2-2, TA2-3, TA2-4, TA2-5 and TA3-1, of teicoplanin with high purity. According to the separation method of the single teicoplanin components, the novel chromatography media-polymer microspheres are adopted to simultaneously separate the six single components from the crude teicoplanin extract; and the method is simple in technology, can be used for disposing a large quantity of samples, consumes less solvent, can be used for preparing the single teicoplanin components in a large scale, and provides samples for intensive study on pathology, toxicology and the like of the single teicoplanin components.

Synthesis of amide adsorptive resin with weak hydrophobic skeleton is carried out by co-polymerizing methyl acrylate with vinyl benzene to obtain ester-based resin, aminolyzing for ester base, acidylating to obtain amide adsorptive resin with weak hydrophobic skeleton, adsorbing flavone compound from Ginkgo extract onto resin by the resin and hydrogen bond synergistic function, flowing ginkgo-lactone, re-crystallizing and eluting to obtain final product. The purity is above 90%, it's simple and non-toxic, it has friendly environment and can be used to supply experimental samples for development of ginkgo lactone.

The invention discloses a Chinese traditional medicine sevenlobed yam rhizome osteoporosis-preventing activity extractive and the extraction process of active ingredient as well as the use for curing osteoporosis. The process uses Chinese traditional medicine of sevenlobed yam rhizome and the dried tuber of freshly collected sevenlobed yam rhizome as raw materials, and adopts solvent extraction method, resin absorption method, reserve-phase pole chromatography and opposite phase pole chromatography to prepare the extractive. Moreover the process uses sevenlobed yam rhizome activity extractive as raw material, and adopts reserve-phase pole chromatography, opposite phase pole chromatography, reserve-phase preparation thin layer chromatography, opposite phase preparation thin layer chromatography, crystallization method and preparation liquid phase chromatogram for separation to obtain each monomer composite. The sevenlobed yam rhizome extractive and partial monomer composites obtained from the process are applied in preparing the drug of preventing osteoporosis.

The invention provides a desorption regeneration method of a hydrophobic macroporous polymer adsorbent adsorbed with butanol. The method disclosed herein comprises the steps of using water-soluble low-boiling polar solvent and water to successively elute the hydrophobic macroporous polymer adsorbent adsorbed with butanol. According to the invention, after a solution containing butanol (e.g. butanol fermentation liquor) is adsorbed by the hydrophobic macroporous polymer adsorbent, by using the desorption regeneration method disclosed herein, the full dissolution and desorption of the adsorbed butanol in the adsorbent can be realized; in addition, the regeneration treatment can be directly carried out on the adsorbent on a fixed bed where the butanol fermentation liquor is adsorbed, and the adsorption process of the next stage can be directly conducted without taking out the adsorbent from the fixed bed, thus a lot of time is saved, and the regeneration efficiency is raised. The method disclosed herein has the advantages of simple process, short separation time, easy, rapid and complete desorption and regeneration, low investment of devices, low pollution, and low energy consumption, and is easy for large scale production.

The invention discloses a preparation method and application of a zinc ion imprinted polymer adsorbent. The preparation method is characterized in that: the preparation method comprises the following steps of: adding zinc acetate, 4-vinyl pyridine, azodiisobutyronitrile and ethylene glycol dimethacrylate in a molar ratio into a triangular flask with a plug; introducing argon in a methanol medium to remove oxygen, and performing a reaction at the constant temperature of 70 DEG C for 20 hours to obtain bulk polymers; grinding the bulk polymers into fine granules; washing the fine granules for 2 hours by using EDTA solution to remove template Zn(II) ions, and washing off residual organic matters by using mixed solution of hydrochloric acid and methanol in a volume ratio of 1:1; and finally performing elution by using water and the methanol, filtering to remove superfine granules, and putting the filtered fine granules in vacuum at the temperature of 60 DEG C for drying. The prepared zinc ion imprinted polymer adsorbent has the specific identification ability, high selectivity, quick adsorption speed and good deabsorption performance on zinc ions, and has excellent physical and chemical stability and mechanical stability, and regeneration capability.

The invention relates to a method for preparing an ion imprinting polymer by virtue of ultraviolet induced polymerization at room temperature and an application of the ion imprinting polymer, and belongs to the field of material preparation and separation technologies and environmental treatment. The ion imprinting polymer can be used as a solid phase extraction adsorbent for selectively and dynamically separating heavy metal ions in wastewater. The method provided by the invention comprises the following steps: introducing vinyl into the surface of a matrix material (Silica) by virtue of a two-step modification method to obtain Silica-APTS-AC at first; and synthesizing a core-shell type ion imprinting polymer adsorbent under ultraviolet irradiation at room temperature by taking the Silica-APTS-AC as a matrix, Co (II) as a template ion and benzophenone (BP) as a photoinitiator. The adsorption property of the adsorbent to Co (II) is investigated, and the adsorbent has a good separation effect in a room temperature environment, has a large adsorption capacity to Co (II), is high in selectivity and significant in separation effect and has more repeated use times. The invention provides a new type of method for selectively separating heavy metal elements (such as Co (II)) in an enrichment environment sample.

Problem To provide a method for easily producing an adsorbing material used for the removal and recovery of metals and ions in a solution, which is highly durable and has various adsorptive functional groups and forms applicable for various purposes.

Means for Resolution A polymer adsorbent for metals and ions, which is highly durable and has various adsorptive functional groups and forms applicable for various purposes, is produced by a) preparing a reactive polymer having a large number of halogenated alkyl groups or glycidyl groups in the molecule, b) preparing a base material polymer insoluble in water and alcohols, c) dissolving the reactive polymer and the base material polymer in an organic solvent to give a mixed solution, d) removing the organic solvent to give a solid carrier in a desired form, and e) allowing a halogenated alkyl group or a glycidyl group in the solid carrier to react with an amine compound having a functional group capable of adsorbing metals and ions, thereby introducing an adsorptive functional group.

The invention relates to a phosphonic acid group-containing chelated resin, and a polymer adsorbent prepared from bis(2-methacryloxyethyl) phosphate through solvent thermal polymerization. A preparation method comprises following steps: 0.5 to 2g of bis(2-methacryloxyethyl) phosphate and 0.05g of azodiisobutyronitrile are added into 1 to 15ml of an organic solvent, an obtained mixture is stirred for 1 to 3h at 25 DEG C, an obtained solution is introduced into a hydro-thermal reaction vessel, reaction is carried out for 24h at 100 DEG C, an obtained product is taken out from the hydro-thermal reaction vessel, is subjected to rotary evaporation to remove the organic solvent, and is subjected to vacuum drying for 12 to 24h at 45 DEG C so as to obtain the phosphonic acid group-containing chelated resin. The invention also discloses a method used for separation and enrichment of thorium at a high acidity with the phosphonic acid group-containing chelated resin. According to the method, theH<+> concentration of a thorium-containing aqueous solution to be processed is adjusted to 1 to 8mol/L, the phosphonic acid group-containing chelated resin is added, shaking is carried out, and absorption is carried out. The phosphonic acid group-containing chelated resin is simple in the preparation method; operation is convenient; few by-products are produced; and the phosphonic acid group-containing chelated resin can be recycled.

The invention provides phenolic resin microspheres as well as a preparation method and application thereof. The phenolic resin microspheres are prepared by the following steps: dissolving phloroglucinol, glyoxylic acid and a pore-foaming agent into a solvent, wherein the molar ratio of the phloroglucinol to the glyoxylic acid is 1 to (2 to 10), and the dose of the pore-foaming agent is 0 to 0.1 time the molar ratio of the phloroglucinol; then carrying out self-assembling, curing, separating, washing and vacuum drying to obtain the phenolic resin microspheres. According to the preparation method provided by the invention, one-step method is adopted to prepare the phenolic resin microspheres, the preparation process is simple, reaction conditions are mild and the use of formaldehyde and other carcinogens is effectively avoided; in addition, no harmful substances are released in the reaction process, and no additional catalysts need to be added; the obtained phenolic resin microspheres have the advantages of high mechanical strength, large adsorption capacity, uniform grain diameter and good sphericity; the phenolic resin microspheres can be used as a matrix material for a polymer adsorbent and are applied to the fields of biomedicine, chromatographic separation, environmental detection, solid phase extraction and the like.

The invention relates to polyamidoxime-based chelating resin for extracting uranium from seawater and a preparation method thereof, and is characterized in that the polymer chelating resin is preparedby adopting a solvothermal method, and a chelating group is amidoxime; amidoxime styrene and ethylene glycol dimethacrylate are copolymerized under a solvothermal condition, and high-concentration amidoxime is immobilized on a polymer skeleton, so that the amidoxime chelating resin adsorbing material is prepared, and the amidoxime chelating resin adsorbing material is applied as a polymer adsorbent for separating and enriching uranium from seawater. The preparation route of the synthesized polyamidoxime-based chelating resin is simple and easy to operate. Meanwhile, the adsorbent has the advantages of being high in adsorption capacity, large in adsorption capacity, high in adsorption speed and the like when used for separating and enriching uranyl ions in seawater, is easy to separate from an aqueous solution, and can effectively adsorb and recover uranyl ions in the seawater solution.

The invention relates to rubber foam for absorbing metal ions in water and a preparation method of the rubber foam and belongs to the field of high polymer materials. The rubber foam comprises the following components of, by weight, 20-80 parts of hydroxyl-terminated nitrile rubber, 20-40 parts of isocyanate, 0.5-3 parts of catalytic agents, 0.5-3 parts of foam stabilizers, 5-10 parts of foaming agents, 2-10 parts of open-hole agents and 5-20 parts of expanded graphite. The hydroxyl-terminated nitrile rubber and the isocyanate are reacted under the existence of the foaming agents and the catalytic agents to prepare the nitrile rubber foam so as to obtain the rubber foam which is capable of absorbing the metal ions in sewage, so that problems are solved that water is required to be led in a column and a large amount of the sewage is difficult to treat when adsorbent resins perform dynamic absorption in prior art, resin absorption amount is small, and the metal ions are complicated in recycling and difficult to treat when the adsorbent resins perform static absorption. According to the modified rubber foam, the nitrile rubber is made into a foam structure, the surface area is large, and the metal ions in the sewage are well absorbed.

The invention discloses a process for separating butanol fermentation liquor by using continuous chromatography. The butanol fermentation liquor is ABE (Acetone-Butanol-Ethanol) fermentation liquor. The process is characterized by comprising the steps of carrying out filtration and ultrafiltration treatment on the butanol fermentation liquor, then, pumping the obtained clear liquid into a continuous separating device containing a hydrophobic macroporous polymer adsorbent for adsorption, carrying out desorption by using ethanol as a desorbent so as to obtain a product butanol, and carrying out adsorbent regeneration by using pure water as a regenerant. According to the process, the aim of separating and purifying butanol is realized through the continuous device by using adsorption and elution competition actions among three ingredients, i.e., acetone, ethanol and butanol, the content of butanol in an upper layer of product liquid can reach over 29-32wt%, the purity of butanol is over 91%, and the average yield is 99%; and the volume of an extracting solution is reduced, a solvent in the extracting solution is self-produced ethanol or acetone in the butanol fermentation liquor, and no other ingredient is added during extraction, so that a large number of energy is saved to further recover various ingredients through the traditional rectification method.

The invention discloses a product prepared by shark cartilage for supplementing calcium and promoting metabolism and development of cartilage, comprising the following matters according to part by weight, 20-80 parts of shark cartilage organic calcium, 1-20 parts of collagen and 1-20 parts of mucopolysaccharide. The invention also discloses a preparation method of the product prepared by shark cartilage for supplementing calcium and promoting metabolism and development of cartilage. The preparation method of the shark cartilage organic calcium comprises the following steps: curing, acidizing,enzymolysis, deproteinization, crystallization, resin pretreatment, resin exchange, ultra-filtration dehydration, filtrate calcification, dehydration and drying. The preparation method of the collagen and the mucopolysaccharide comprises the following steps: boiling the shark cartilage by water, then crushing and conducting homogenate on the shark cartilage, removing sediments by filtering, adding filtrate with macroporous resin for absorption, then conducting elution by sodium chloride solution, and finally adding ethanol in eluent for settlement. The product has the beneficial effects that calcium is supplemented, the cartilage metabolism is promoted, the cartilage development of children is enhanced, the cartilage injure is repaired, the absorption rate of a human body is high, and theside effect does not exist.

The invention relates to a preparation method of a halloysite surface initiated boron affinity imprinted polymer adsorbent, and belongs to the technical field of preparation of environmental functional materials. The method comprises the following steps: purifying halloysite (HNTs), and wrapping the surface of halloysite with a layer of dopamine to form HNTs@PDA; connecting a bromine initiator to the surface of the HNTs@PDA to obtain HNTs@PDA@Br; connecting vinyl imidazole to the HNTs@PDA@Br through an atom free radical polymerization technology to obtain HNTs@PDA@Br@VLD; and adsorbing zinc ions, adsorbing luteolin, introducing fluorophenylboronic acid, and carrying out ATRP polymerization in order to obtain the imprinted polymer. Imprinted polymer microspheres prepared through the method have the advantages of good chemical stability, high adsorption capacity, good acid-alkali effect, realization of reversible adsorption/release functional luteolin with the acid-base value, and specific and high selective identification performance.

Belonging to the technical field of sample pretreatment and pollutant analysis and detection, the invention discloses an aqueous phase preparation method and application of a tylosin tartrate surfacemolecularly imprinted polymer. The technical scheme includes the key points that: 2-acrylamide-2-methylpropane sulfonic acid and/or 1, 4-butanediyl-3, 3'-bis-1-vinyl imidazolium chloride can be adopted as the functional monomer, tylosin tartrate is taken as the template molecule, pure water is adopted as the preparation solvent, the crosslinking agent N, N'-methylene bisacrylamide and the initiator azobisisobutyronitrile are utilized for thermal initiation of polymerization reaction to prepare the tylosin tartrate surface molecularly imprinted polymer on a styrene-divinyl benzene granular carrier surface. The tylosin tartrate surface molecularly imprinted polymer has action sites for specific recognition of tylosin tartrate, and can be used for selective adsorption of trace tylosin tartrate in environmental samples. According to the invention, the preparation process is simple and the cost is low, and the polymer adsorbent material has uniform particle size, large adsorption capacity and high mass transfer rate.