149 results about "Macroporus" patented technology

The invention discloses a macroporous resin material and a preparation method thereof, and macroporous resin with high specific surface area and excellent adsorption performance is obtained through a specific modified acrylate polymeric monomer and a preparation method of the macroporous resin material. The method comprises the following steps: reacting quercetin, methyl vanillate and acryloyl chloride to prepare a modified acrylate polymeric monomer, mixing the modified acrylate polymeric monomer with polyvinyl alcohol, ethylene glycol dimethacrylate, dodecanol, benzoyl peroxide and the like, and carrying out suspension polymerization to prepare the macroporous resin material. The prepared macroporous resin material has excellent performance in the aspects of pore structure, polarity and the like, can be widely applied to the related fields of adsorption separation and the like, and provides a new thought and method for research and development of the macroporous resin material.

This invention relates to a macroporous cement composition suitable for use as a bone void filler. The macroporous cement composition comprises hydroxyapatite and β-calcium pyrophosphate. The porosity of the composition is 60-80 vol %. The invention also relates to methods of manufacturing such a macroporous cement composition and a putty formulation comprising such a macroporous cement composition.

The utility model discloses a solvent recovery device based on macroporous resin adsorption, relates to the technical field of resin solvent recovery, and adopts the technical scheme that a flattening mechanism comprises a plurality of groups of motors, one side of each group of motor is mounted on one side of a shell, and the other side of each group of motor is mounted on the other side of the shell; output shafts of the multiple sets of motors penetrate through one side of the shell and are connected with one end of a screw rod, the other end of the screw rod is installed in the shell through a bearing, the outer surface of the screw rod is in threaded connection with a threaded seat, and the lower portion of a transverse plate is connected with a scraping plate through an adjusting mechanism. The scraper is driven to move, macroporous resin placed above the filter plate is flattened, the contact area of the macroporous resin and high-temperature steam is increased, the macroporous resin can fully react with the high-temperature steam, and therefore the problem that the extraction rate of a solvent is reduced due to the fact that part of the macroporous resin and the high-temperature steam are not fully reacted is solved.

The invention discloses a method and system for recycling CL-20 in strong acid waste liquid through macroporous adsorption resin, and belongs to the technical field of environmental remediation. The method comprises the steps that the macroporous adsorption resin is added into the strong acid waste liquid containing CL-20, and an adsorption reaction is conducted under set conditions; after the adsorption is completed, separating the resin saturated by adsorption from the waste liquid, and treating the resin saturated by adsorption by utilizing a desorption agent; putting the desorbed resin into the waste liquid containing CL-20 again for adsorption, and repeating adsorption-desorption; and treating the solution containing CL-20 obtained by adsorption-desorption to obtain a CL-20 solid. According to the method disclosed by the invention, the CL-20 adsorption rate can reach 97% or above under the condition that the adding amount of the resin is 10g / L, the concentration of the CL-20 in ethyl acetate after three times of circulation can reach 2.60 g / L, the content of the CL-20 in the finally recovered solid is 37.87%, and the total recovery rate reaches 58.25%. The invention provides an efficient, economic and environment-friendly CL-20 recovery method, the treatment problem of the CL-20-containing strong acid waste liquid can be effectively solved, and meanwhile, the recycling of valuable chemicals is realized.

The invention belongs to the technical field of functional resin, and particularly relates to macroporous adsorption resin for sugar decolorization and a preparation method and application thereof.The preparation method of the macroporous adsorption resin for sugar decolorization comprises the following steps that water, a dispersing agent and a polymerization inhibitor are mixed, and a water phase is obtained; mixing a monomer, an initiator and a pore-foaming agent to obtain an oil phase; mixing the water phase and the oil phase, standing, shaping, carrying out polymerization reaction, and removing the pore-foaming agent to obtain matrix white balls; the monomer comprises at least one of divinylbenzene, styrene and methyl acrylate; in the oil phase, the mass ratios of the monomer, the initiator and the pore-foaming agent are respectively 36.38%-41.5%, 0.34%-0.45% and 58.05%-63.19%; and mixing the matrix white balls and Lewis acid, and carrying out a post-crosslinking reaction to obtain the macroporous adsorption resin for sugar decoloration. The synthesis process is low in equipment requirement, simple and convenient to operate, low in cost and environment-friendly; and the prepared product has high decolorization rate and can be regenerated.

The invention belongs to the technical field of macroporous resin adsorption, and particularly relates to macroporous resin adsorption separation equipment which comprises a base, supporting frames, a thermal control type adsorption mechanism and a speed detection type communication detection mechanism, the supporting frames are symmetrically arranged on the upper wall of the base, and the thermal control type adsorption mechanism is arranged at the ends, away from the base, of the supporting frames; the speed detection type communication measuring mechanism is arranged on the outer side of the thermal control type adsorption mechanism, and the thermal control type adsorption mechanism comprises a gas transmission mechanism, a water cooling mechanism, a filtering mechanism and a temperature control mechanism. According to the separation equipment for macroporous resin adsorption, the adsorption operation environment temperature of macroporous resin can be regulated and controlled, and it is guaranteed that the macroporous resin is always at the optimal adsorption temperature.

The invention relates to the field of hygienic products, and discloses a macroporous super-breathable, dry and comfortable hygienic product and a preparation process thereof, and the macroporous super-breathable, dry and comfortable hygienic product comprises a macroporous non-gel composite non-woven fabric, a nano platinum antibacterial layer, intelligent super absorbent resin and a softened surface layer. A macroporous structure is introduced into the surface of the non-woven fabric, so that the absorption speed of liquid and the air circulation are obviously improved; the nano platinum antibacterial layer endows the product with efficient antibacterial performance, effectively inhibits the growth of bacteria, and improves the hygienic guarantee of a user; the intelligent SAP automatically adjusts the water absorption capacity according to the environment humidity, rapidly expands under the high-humidity condition, improves the water absorption efficiency, locks the liquid and prevents the liquid from permeating back; the surface layer subjected to softening treatment further improves the comfort and the skin-friendly property of the product, and skin friction is reduced. The product is suitable for baby diapers, female sanitary napkins and adult incontinence nursing products, excellent air permeability, dry and comfortable performance and antibacterial performance are provided, and the comfortable experience of a user is remarkably improved.

The utility model relates to the technical field of adsorption and desorption equipment, in particular to a macroporous resin adsorption and desorption system which comprises a raw material input module, a series adsorption module, a steam desorption module, a separation module, an electrical control module, a plurality of pipelines and a plurality of electromagnetic valves, the series adsorption module, the steam desorption module, the separation module and the plurality of electromagnetic valves are all in communication connection with the electrical control module. The system is provided with three adsorbers, the control system controls the running conditions of the adsorbers according to the concentration of VOCs in waste gas discharged by the adsorber II and the adsorber III, the adsorber I and the adsorber II run, the adsorber III is desorbed or shut down, or the adsorber is desorbed, the adsorber II and the adsorber III run, and the VOCs in the waste gas discharged by the adsorber II and the adsorber III are desorbed and desorbed at the same time. Double-adsorption operation is always kept, and the utilization rate of the adsorbent is improved; meanwhile, the system controls the desorption steam condition according to the desorption condition, and the effect that the desorption speed is too high or the desorption speed is too full is avoided.

The invention relates to the technical field of alumina material preparation, in particular to macroporous pseudo-boehmite and a combined preparation method thereof. The preparation method comprises the following steps: carrying out neutralization reaction on carbon dioxide and a sodium aluminate solution to obtain neutralized slurry; performing first aging treatment on the neutralized slurry to obtain first aged slurry; filtering the first aged slurry to obtain a solid-phase material and a liquid-phase material; sequentially washing and drying the solid-phase material to obtain a first macroporous pseudo-boehmite product; aluminum sulfate and the sodium aluminate solution are subjected to parallel flow neutralization, and aluminum hydroxide slurry is obtained; mixing the aluminum hydroxide slurry with the liquid-phase material, and then carrying out second aging treatment to obtain second aged slurry; performing post-treatment on the second aged slurry to obtain a second macroporous pseudo-boehmite product; and collecting the two macroporous pseudo-boehmite products in batches. According to the preparation method, pseudo-boehmite with different pore structure characteristics is respectively prepared through two neutralization technologies based on three mechanisms of staged treatment, material recycling and structure complementation.

The invention relates to a three-dimensional macroporous structure iridium oxide material constructed by nanoparticles and preparation and application thereof, the iridium oxide material is prepared by the following method: (1) dissolving an iridium salt precursor reagent in deionized water to prepare an iridium salt precursor solution, and then adding an amphiphilic triblock copolymer; (2) ultrasonically dispersing a polymer template agent into deionized water to prepare a template agent emulsion; (3) uniformly mixing the iridium salt precursor / amphiphilic triblock copolymer mixed solution with the template agent emulsion, and drying at a constant temperature; and (4) performing high-temperature calcination in an oxygen atmosphere to obtain the three-dimensional macroporous structure material constructed by the iridium oxide nanoparticles. The nanoparticle and three-dimensional macroporous structure compounded iridium oxide material disclosed by the invention has the advantages of excellent catalytic activity, stability and the like when being applied to electrolytic water decomposition as a water oxidation catalyst.

The utility model relates to the technical field of absorption and desorption devices, in particular to a macroporous resin absorption and desorption device which comprises a cylinder, elliptical heads are fixedly connected to the top and the bottom of the cylinder, a four-way pipeline is fixedly connected to one end of each elliptical head, a discharge port and a spray liquid inlet are formed in the outer surface of the cylinder, and the discharge port is communicated with the spray liquid inlet. A spraying liquid distributor is fixedly connected to the interior of the spraying liquid inlet, and a bottom support and a top support are fixedly connected to the interior of the barrel. The device has the advantages that after adsorption resin is desorbed and organic matters adsorbed in the adsorption resin are basically completely desorbed, the spiral nozzles uniformly distributed on the spray liquid distributor spray cooling water to be cooled to a set temperature, the barrel body is regenerated for later use and the adsorption resin does not need to be replaced under the condition that a factory does not need to be shut down until adsorbate completely loses efficacy, and the device is simple in structure and convenient to operate. And therefore, the effects of saving funds and improving the utilization rate of the adsorption resin are facilitated.

The utility model discloses a separation and purification device based on macroporous resin, and relates to the technical field of separation and purification, the separation and purification device based on macroporous resin comprises a chromatographic column, the chromatographic column is provided with a chromatographic structure convenient for separation and purification, the chromatographic structure comprises a feed port, a fixed base and a circular truncated cone flow guide ring, the feeding hole is fixedly formed in the upper end part of the chromatographic column, the fixed base is positioned at the lower end part of the chromatographic column, each circular truncated cone flow guide ring is positioned on the inner side wall of the chromatographic column, an adjusting valve is arranged at the lower end part of the chromatographic column, and two column mounting grooves are formed in the upper end part of the feeding hole. The chromatographic column is arranged to purify anthocyanin, the purity of the obtained anthocyanin is higher than that of unpurified anthocyanin, toxic organic solvents are avoided in the whole process, only ethyl alcohol is used, environment friendliness is achieved, resin can be repeatedly used, and the production cost is reduced.

The invention relates to the technical field of resin preparation, in particular to macroporous weak-base anion exchange resin as well as a preparation method and application thereof. The crosslinked styrene-divinylbenzene microsphere matrix obtained by a preparation process of regulating and controlling the crosslinked styrene, the divinylbenzene and the pore-foaming agent and adding the crosslinking agent has the advantages of high mechanical strength, controllable specific surface area, adjustable pore diameter and the like. A macroporous weak base anion exchange resin; according to the method, the total exchange capacity reaches 4.8 mmol / g or above, the resin sphericity in the fatigue strength of 100 cycles is 90% or above, the resin sphericity in the fatigue strength of 300 cycles is 70% or above, the treatment volume ratio (BV) in the first cycle in the xylose decolorization process is 80 or above, and the purposes of improving the resin quality, reducing the environmental pollution and improving the energy efficiency ratio can be achieved.

The macroporous resin gel chromatography device comprises a macroporous resin chromatography column, the macroporous resin chromatography column comprises a supporting column, two first adjustable supports, an arc-shaped clamping plate and a glass tube, one end of each first adjustable support is connected to the supporting column in a sleeved mode, the arc-shaped clamping plate is fixed to the other end of each first adjustable support, and the glass tube is connected with the supporting column in a sleeved mode. The glass tube is clamped on the inner side of the arc-shaped clamping plate; the supporting assembly comprises a second adjustable support, an L-shaped supporting plate, a rotating shaft, a connecting ring and a connecting plate, the supporting column is sleeved with one end of the second adjustable support, one end of the L-shaped supporting plate is fixed to the other end of the second adjustable support, one end of the rotating shaft is fixed to the inner side of the L-shaped supporting plate, the rotating shaft is sleeved with the connecting ring, and the connecting plate is fixed to the side edge of the connecting ring. The utility model solves the problem that the process of slowly dropping substances to be separated by experimenters takes a long time and consumes more physical power due to the fact that the chromatographic column is higher.

The utility model relates to an exchange column for preparing macroporous weak acid cation exchange resin, which comprises an exchange column body and a pipeline valve, the body consists of an upper column body and a lower column body, first flanges are respectively formed at the lower end of the upper column body and the upper end of the lower column body, and the pipeline valve is arranged between the upper column body and the lower column body. Second flanges are respectively formed at the upper and lower ends of the pipeline valve; the second flange at the upper end of the pipeline valve is fixedly connected with the first flange at the lower end of the upper column body through a plurality of bolt assemblies; the second flange at the lower end of the pipeline valve is sleeved with a lantern ring with the L-shaped section, the lantern ring is composed of two semi-circular-ring-shaped sleeve bodies, and the first flange at the upper end of the lower column body is sleeved with the lower end of the lantern ring. The lower column body on the lower side of the first flange is sleeved with a circular-ring-shaped rubber sealing block and a pressing plate in an inserted mode, and the rubber sealing block and the pressing plate are both inserted into the lantern ring. According to the exchange column, sealing is achieved on the basis that the external clamping sleeve and the clamping plate clamp the rubber sleeve to be compressed and expanded, installation is convenient, and meanwhile sealing connection of pipeline valves can be effectively guaranteed.

The invention discloses a macroporous distribution plate with a three-dimensional structure, which is arranged between a first-section regenerator and a second-section regenerator and comprises a distribution plate and a cylindrical hollow cylinder, the distribution plate is a partition plate of the first-section regenerator and the second-section regenerator, and a cylindrical hollow barrel is arranged in the center area of the distribution plate and is perpendicular to the distribution plate; the top of the hollow cylinder is closed, and the bottom is connected with the first-section regenerator; and holes are formed in the side wall of the cylinder. The problem of distribution of catalysts and flue gas from the first-section regenerator to the second-section regenerator is solved, fluidization of a second-section regeneration turbulent bed is stable, the transfer coefficient of excess oxygen in the flue gas of the first-section regenerator is increased, tail combustion of the flue gas in a dilute-phase space can be effectively controlled, and a new scheme is provided for an in-service device to solve the tail combustion problem.

The invention provides macroporous structure eutectic hydrogel as well as a preparation method and application thereof, and belongs to the technical field of hydrogel preparation. The preparation method comprises the following steps: firstly preparing an MXene coated MWCNTs-NH2 dispersion liquid, then adding PVA and a pore-forming agent into the MXene coated MWCNTs-NH2 dispersion liquid to obtain a mixed liquid, then grinding the mixed liquid to obtain a pre-gel liquid, then carrying out circulating freezing-unfreezing on the pre-gel liquid, then soaking in an acidic solution to obtain a macroporous hydrogel, and finally, carrying out ultrasonic treatment on the macroporous hydrogel to obtain the porous hydrogel. Soaking the macroporous hydrogel in a mixed solution of a deep eutectic solvent and deionized water for solvent replacement, and obtaining the macroporous hydrogel after soaking; the prepared macroporous structure eutectic hydrogel has excellent mechanical property, conductivity, antibacterial property and environmental stability; the method can be applied to preparation of wearable sensors or intelligent artificial skins, and the prepared sensors have excellent sensitivity.

The invention discloses macroporous composite ion exchange resin, a preparation method, a method for preparing diol by hydrating epoxyalkane and application of the macroporous composite ion exchange resin. The macroporous composite ion exchange resin is provided with a spherical or sphere-like pore channel; the macroporous composite ion exchange resin comprises a macroporous composite resin matrix and a functional group connected to the macroporous composite resin matrix, the general formula of the functional group is-N + R1R2R3X-, R1, R2 and R3 are respectively and independently at least one of C1-10 alkyl or aromatic groups, and X-is an anion or an anion group. The unique pore structure of the macroporous composite ion exchange resin disclosed by the invention is very beneficial to substance diffusion and reaction heat transfer, and shows high activity and stability in a reaction for preparing ethylene glycol by hydration of ethylene oxide at a low water ratio.

The invention discloses a preparation method of water-resistant macroporous spherical silica gel, and belongs to the technical field of inorganic material preparation. The preparation method comprises the following steps: preparing gel balls by taking water glass and sulfuric acid as raw materials through an air granulation method, namely a wet gel initial product, and performing drying, alkali treatment and secondary drying on the wet gel initial product to obtain the water-resistant macroporous spherical silica gel. The initial spherical silica gel is prepared by adopting a relatively mature industrial method at present, and then the adsorption rate of the silica gel to water is slowed down through post-treatment modification, so that the silica gel does not crack when encountering water. In addition, the product has large pore volume and pore diameter, and can be widely applied to preparation of a supported catalyst by an impregnation method.

The invention relates to the field of chemical reaction equipment, and discloses a reaction device for removing oxalic acid in glyoxylic acid by using macroporous resin, which comprises a thin and tall chromatographic column, two groups of filter material precipitation plates respectively filled in the upper layer and the lower layer of the chromatographic column, and two groups of filter material precipitation plates respectively filled in the upper layer and the lower layer of the chromatographic column, the filter material precipitation plate group is formed by stacking an upper filter plate, a lower filter plate, and filter cloth I and filter cloth II with different mesh numbers up and down; the upper-layer convex ring filling bin and the lower-layer convex ring filling bin are respectively arranged at the positions close to the top end and the bottom end of the chromatographic column in a convex manner and are used for filling the two filter material precipitation plate groups; a downward-moving clamping structure corresponding to the space between the upper filter plate and the lower filter plate is arranged in the filter material precipitation plate group; according to the reaction device for removing oxalic acid in glyoxylic acid by using macroporous resin, oxalic acid can be efficiently removed, broken resin can be blocked, it is ensured that flowing-out glyoxylic acid is pure, meanwhile, key filtering parts are specially designed to be replaceable, and equipment maintenance and part replacement are facilitated.

A process for preparing a macroporous material comprising an active phase comprising a potassium phosphate salt and / or a cesium phosphate salt and a support comprising α-SiC silicon carbide and silica comprising the following steps: a) contacting a colloidal silica sol with a powder of a potassium and / or cesium phosphate salt to obtain a suspension; b) adding a powder of precipitated silica, a powder of α-SiC silicon carbide and a solvent to obtain a paste; c) shaping the paste to obtain a material precursor; d) drying the material precursor at a temperature between 15°C and 250°C; e) calcining the dried material precursor obtained at the end of step d) at a temperature above 250°C and below or equal to 1200°C.

The present invention relates to a catalytic cracking catalyst, comprising: 5-40 wt% of a molecular sieve, 5-40 wt% of clay calculated on a dry basis, 5-35 wt% of a silicon species calculated on the basis of SiO2, 30-75 wt% of an aluminum species calculated on the basis of Al2O3, 0.5-15 wt% of a stabilizing element calculated on the basis of an oxide, and 0.5-10 wt% of an activity-modifying element calculated on the basis of an oxide. The content ratio of the silicon species to the aluminum species is 0.05-2 calculated on the basis of the molar ratio of SiO2 / Al2O3. The stabilizing element is selected from at least one of group IIIB elements and group IVB elements, and the activity-modifying element is selected from at least one of Mg and P; or the stabilizing element is selected from Mg, and the activity-modifying element is selected from at least one of P, B, Fe, group IIIB elements, and group IVB elements. The present invention further relates to a method for preparing the catalytic cracking catalyst and a heavy oil catalytic cracking method.

The invention relates to the technical field of catalysts, and discloses a macroporous silicon dioxide composite carrier and a preparation method and application thereof.The macroporous silicon dioxide composite carrier contains SiO2 and Al2O3, and the content of SiO2 is 65-90 wt% when the total weight of SiO2 and Al2O3 is 100 wt%; wherein the average pore size of the silicon dioxide composite carrier is 7.6-9.4 nm. The silicon dioxide composite carrier disclosed by the invention has relatively large pore diameter and pore volume, and the catalyst prepared by utilizing the silicon dioxide composite carrier disclosed by the invention has good catalytic performance and longer catalyst service life. The macroporous silicon dioxide composite carrier disclosed by the invention is simple in preparation process and low in price, and has extremely high industrial application and popularization values.

The invention relates to the technical field of mesoporous material preparation, and discloses a macroporous carbon sphere as well as a preparation method and application thereof. The macroporous carbon sphere provided by the invention has a pore channel structure diverging in the center; the pore diameter is 7-150nm, the specific surface area is 80-1600m < 2 > / g, and the pore volume is 0.2-1.5 cm < 3 > / g. The preparation method comprises the following steps: dissolving a first surfactant in a composite solvent to obtain a precursor solution; adding a pore-enlarging agent and a second surfactant into the precursor solution to obtain an emulsion; then adding a phenolic precursor, formaldehyde and a catalyst for reaction; collecting a solid phase, and carrying out heat treatment in an inert atmosphere to obtain macroporous phenolic resin spheres; and carrying out carbonization treatment in an inert atmosphere to obtain the macroporous carbon spheres. The macroporous carbon sphere has a large pore diameter and a highly open pore channel structure, uniform deposition of inert discharge products in pore channels can be realized, efficient ion transmission and gas diffusion are ensured, an excellent conductive network is maintained, and highly reversible generation and decomposition of the discharge products are realized.

The microporous noise-reducing aerogel coating material is prepared from the following raw materials in parts by weight: 100 to 110 parts of tetraethoxysilane, 1 to 2.5 parts of hydrophilic emulsifier, 5 to 10 parts of pore-foaming agent, 0.5 to 2 parts of initiator, 30 to 40 parts of functional monomer, 5 to 10 parts of cross-linking agent and 2 to 3 parts of lipophilic emulsifier. According to the invention, a hierarchical pore structure from micron to nanoscale is constructed in situ through a one-step method. In the gelation and drying processes, the interface of the emulsion drops is used as a template to guide and form a macroporous skeleton; meanwhile, through a sol-gel process of a silicon source and volatile / reactive pore forming of an organic phase, mesoporous and microporous structures are formed in pore walls. And finally, a three-dimensional through'macropore-mesopore-micropore 'hierarchical pore structure is formed.

The invention discloses macroporous polar adsorption resin for removing a paint film in oil for electric power and a preparation method of the macroporous polar adsorption resin, and relates to the technical field of purification and regeneration treatment of the oil for electric power, the preparation method comprises the following steps: mixing macroporous adsorption resin and an organic solvent, heating, and continuously stirring in the heating process until the macroporous adsorption resin is fully swelled to obtain a swelled product; a functional monomer is added into the swelling product, heating is conducted, the stirring speed is kept, stirring is conducted, then a reaction is conducted, modified resin is obtained, and the functional monomer is an alkaline strong-polarity modifier; and filtering and washing the modified resin until the washing liquid is neutral and completely clear, and drying to obtain the macroporous polar adsorption resin. The macroporous adsorption resin is used as the precursor, so that the synthesis method is simple and good in stability, the functional monomer containing amino is used for modifying the precursor, the effect of removing the paint film in the degraded electric oil is better, the chromaticity of the oil can be reduced, and the service life of the oil can be effectively prolonged.

The invention discloses a preparation method of macroporous silica-alumina gel. The preparation method comprises the following steps: (1) adding a template agent into an acid solution, and stirring to prepare an acid solution containing the template agent; (2) adding an aluminum salt and an auxiliary agent into the sodium metasilicate solution, then adding an acid solution containing a template agent, and then dropwise adding the acid solution to prepare silica-alumina gel; (3) putting the silica-alumina gel into a microwave reactor for aging; (4) drying the aged silica-alumina gel to prepare powder, and removing the template agent to prepare silica-alumina gel; (5) soaking silica-alumina gel in a salt solution to obtain silica-alumina gel subjected to double salt treatment; and (6) dipping the silica-alumina gel subjected to double salt treatment in aqua regia to obtain a solid, washing, drying and roasting. The preparation method of the macroporous silica-alumina gel provided by the invention has the advantages of simple operation, cheap and easily available raw materials and the like, and the prepared macroporous silica-alumina gel particles also have high specific surface area and high pore volume. The silica-alumina gel prepared by the invention can be successfully applied to catalytic ethylene polymerization reaction.

The present invention relates to a method for continuously preparing polycarbonate in a two-phase interface method. The catalyst used in preparing the polycarbonate is an amine-modified macroporous resin, and the preparation monomers thereof include polyvinylbenzene monomers, double-bond monomers containing amine groups, and allyl gamma-cyclodextrin, which can produce polycarbonate with low carbamate, and preferably the total nitrogen content of the polycarbonate is less than 10ppm. Such a catalytic resin can save the separation-recovery unit of the catalyst in engineering, and the cyclodextrin structure can de-emulsify the emulsified oil-water two phases when the working condition is abnormal, so that the reaction process and the oil-water separation process proceed normally.

The utility model relates to the technical field of adsorption devices, in particular to a macroporous resin adsorption and desorption device which comprises supporting legs, an adsorption box, a drainage frame, a water inlet pipe, a water outlet pipe, a coaxial reversing assembly, a stirring structure and an adsorption assembly, through cooperative work of the coaxial reverse rotating assembly, the stirring structure and the adsorption assembly, synchronous but reverse rotation of the forward rotating shaft and the reverse rotating shaft is realized, so that comprehensive mixing and flowing of liquid in the adsorption box are promoted, and macroporous resin in the adsorption box I and the adsorption box II can effectively adsorb target components; therefore, the adsorption effect is enhanced, the problem that the fluidity of macroporous resin in the device is poor is solved, in addition, liquid can flow into the second adsorption box from the first adsorption box through the water passing holes, and the continuous adsorption process is achieved.