41results about How to "Low dissolution rate" patented technology

The invention discloses a preparation method of a high-activity hierarchical pore boric acid imprinted hydrogel microsphere adsorbent and application of the adsorbent to selective adsorption of a flavonoid compound naringin NRG. According to the invention, dopamine is used for modifying COFs so as to enhance surface functionalization of COFs; preparing a sulfydryl functionalized covalent organic framework microsphere; synthesizing sulfydryl microspheres by utilizing an emulsion interfacial polymerization method; preparing a COFs boron affinity imprinting microsphere adsorbent based on boron affinity interaction; the adsorbent is applied to selective adsorption of NRG in agricultural wastewater. The prepared adsorbent has a remarkable multilayer adsorption effect, and the adsorption capacity is remarkably improved through the boron affinity effect. The multi-stage pore structure of the COFs microspheres provides abundant sites for adsorption, and the mass transfer rate is remarkably improved. In addition, the prepared adsorbent shows remarkable specificity in the aspects of adsorption and separation of NRG, and a promising adsorption material is provided for industrial separation of NRG.

The invention discloses an ethylene chain-based ferrocenyl covalent organic polymer and application thereof, and belongs to the technical field of biological medicines. The covalent organic polymer based on the ethylene chain ferrocenyl is a covalent organic polymer which is obtained by taking 1, 1 '-ferrocenedicarboxaldehyde, bromoethane and 2, 4, 6-trimethyl-1, 3, 5-triazine as monomers through polymerization and has a completely conjugated structure. The method comprises the following steps: adding 1, 1 '-ferrocenedicarboxaldehyde, bromoethane and 2, 4, 6-trimethyl-1, 3, 5-triazine into a mixed solvent under a protective atmosphere, uniformly stirring, carrying out solvothermal reaction in a closed environment, and washing and drying a product obtained by filtering to obtain the covalent organic polymer based on ethylene chain ferrocenyl. The novel COP material ITAFc-COP with a completely conjugated structure is synthesized, the photo-thermal activity of the novel COP material ITAFc-COP is enhanced by the completely conjugated structure of ITAFc-COP, and the novel COP material has a photo-thermal effect and pod-like activity at the same time.

The invention belongs to the technical field of wastewater treatment, and particularly relates to a wastewater treatment device for high-tower chemical fertilizer production, which comprises a sedimentation tank and a controller mounted outside the sedimentation tank, and further comprises two partition plates respectively mounted on two sides of the inside of the sedimentation tank, the sedimentation tank is divided into a high-concentration sedimentation area, a medium-concentration sedimentation area and a low-concentration sedimentation area by the two partition plates; the detection box is arranged outside the sedimentation tank, a wastewater inlet pipe is fixedly inserted into the side wall of one side, far away from the sedimentation tank, of the detection box, and the detection box is provided with a wastewater diversion assembly. According to the invention, automatic zoning precipitation can be carried out according to the turbidity of the wastewater, the dirt dissolution rate is reduced, excessive dissolution and diffusion of chemical fertilizer dirt are avoided as much as possible, the subsequent treatment difficulty is reduced, the overall treatment efficiency is improved, accurate dosing can be realized, meanwhile, the wastewater yield can be indirectly reduced, and the waste of water resources is avoided.

The invention discloses a preparation method of a high-valence Nb < 5 + > doped H2TiO3 lithium ion sieve, and belongs to the technical field of preparation of inorganic materials. The method is simple and environment-friendly in process, free of organic matters and easy for large-scale production. The unique hollow structure and large specific surface area anatase type TiO2 are adopted as a titanium source, so that the specific surface area, porosity and particle dispersity of the H2TiO3 ion sieve are remarkably improved, adsorption active sites are increased, and the adsorption efficiency and capacity of lithium ions are improved; the structure of the lithium ion sieve is more stable by doping the titanium source with the hollow structure and Nb < 5 + >, and the dissolution loss rate of Ti < 4 + > is reduced. After multiple lithium ion adsorption / desorption cycles, the adsorption capacity of the lithium ion sieve is kept at a high level, and the dissolution loss rate of Ti < 4 + > is extremely low. The ion sieve has high adsorption efficiency, low solution loss rate and good cycle stability, is suitable for the fields of salt lake lithium extraction, lithium-containing wastewater treatment, lithium ion batteries and the like, can significantly improve the extraction efficiency and the battery performance, reduces resource waste and environmental pollution, reduces the production cost, and provides powerful support for technical progress and industrial development in related fields.

The invention relates to a method for preparing a high-performance low-carbon red mud-based geopolymer, which comprises the following steps of: preparing slurry, namely crushing dry Bayer red mud, calcining, mixing the calcined red mud with slag powder to serve as a cementing material, mixing the cementing material, aggregate, an alkali activator and an external additive, adding water, and uniformly stirring to form the slurry, thereby obtaining the high-performance low-carbon red mud-based geopolymer. Wherein the external additive comprises a polymer composition, and the polymer composition is composed of hydroxypropyl ethyl cellulose, polyoxyethylene and an ethylene-vinyl acetate copolymer. By adding the polymer composition, the strength of the geopolymer is effectively improved, so that the Bayer red mud can have excellent bending strength and breaking strength at a high proportion, the curing effect of the geopolymer on heavy metal ions is also effectively improved, the dissolution rates of the heavy metal ions Cr, Cu, Ni and the like are reduced by 50% or above, and the service life of the geopolymer is prolonged. The dissolution and diffusion of heavy metal ions in the long-term use process are reduced, and the environmental protection performance of the prepared geopolymer is improved.

The invention discloses a circulating type microwave cocoon cooking machine which is a key device for a reeling mill, the outer layer, the middle layer and the inner layer of cocoons are uniformly cooked at the same time in the cocoon cooking process most efficiently, and the defects of steam cocoon cooking, hot soup cocoon cooking, outer cooking and inner cooking can be overcome. The production efficiency is greatly improved, the quality of white steam filature silk is obviously improved, raw material consumption is obviously reduced, pupa acid leaching is effectively inhibited, and energy conservation and environmental protection are achieved.

The invention discloses a pollution blocking water permeable brick prepared based on biomass power plant ash and sludge-based biochar and a preparation method of the pollution blocking water permeable brick. The pollution blocking water permeable brick is prepared from the following raw materials in parts by mass: 20 to 25 parts of biomass power plant ash, 3 to 6 parts of cement, 15 to 20 parts of sludge-based biochar, 15 to 20 parts of mineral powder, 35 to 45 parts of natural zeolite, 5 to 10 parts of sand and 10 to 40 parts of clay. The biomass power plant ash is biomass power plant ash residue, and the sludge-based biochar is a municipal sludge pyrolysis product. Biomass power plant ash and sludge-based biochar are used as main brick making raw materials, and the function of intercepting pollutants of the water permeable brick is achieved. The brick making raw materials are low in price and wide in distribution, low-cost preparation of the water permeable brick is achieved, the water permeable brick has the advantages of being stable in ecology, energy-saving, environmentally friendly and capable of achieving resource circulation, and meanwhile the problems of land resource waste and environmental pollution caused by solid waste accumulation are solved.

The present invention relates to the technical field of defoamers, and discloses a method for preparing a polyether-modified silicone defoamer. The present invention uses the hydroxyl contained in silicon dioxide and γ-glycidyloxypropyltrimethoxysilane to obtain epoxy-modified nano-silica through hydrolysis and condensation reaction. Cardanol, ethylene oxide, epoxy-modified nano-silica, etc. are used as raw materials, and modified polyether is obtained through ring-opening polymerization. Octamethylcyclotetrasiloxane, aminopropyltriethoxysilane, etc. are used as raw materials, and modified hydrogen-containing silicone oil is obtained under the catalytic reaction of concentrated sulfuric acid. Modified hydrogen-containing silicone oil and modified polyether are used as raw materials, and chloroplatinic acid is used as a catalyst to obtain polyether-modified silicone oil. Then, it is used as the main body, and a polyether-modified silicone defoamer is prepared by adding silicone paste, a thickener, etc. Thereto. The polyether-modified silicone defoamer prepared by the present invention has excellent defoaming effect and stability.

The invention provides a preparation method of a granular manganese lithium ion adsorbent, and belongs to the technical field of lithium extraction adsorbents, the preparation method comprises the following steps: dissolving a lithium salt and a manganese salt in water together to obtain a lithium-manganese solution, and adding a carrier molecular sieve into the lithium-manganese solution to obtain a mixed solution; adding a precipitant and a complexing agent into the mixed solution, and stirring to react for a certain time to obtain a reaction solution; aging the reaction liquid, then carrying out solid-liquid separation, and drying the obtained precipitate to obtain a coprecipitation carrier; and carrying out high-temperature roasting on the coprecipitation carrier to obtain the manganese-based lithium ion adsorbent. The lithium ion adsorbent prepared by the method is granular and high in flowability, solves the problem of poor flowability of a powdery adsorbent in industrial application, and has excellent stability and adsorption capacity. The invention also provides the granular manganese lithium ion adsorbent.

The present invention discloses a porous organic polymer rich in heteroatoms, a preparation method and an application thereof. Under a protective atmosphere, 5, 10, 15, 20-tetrakis(4-(2,4-diaminotriazine)phenyl)porphyrin and a monoaldehyde monomer are added to an organic solvent, and then a solvent thermal reaction is carried out. After cooling, the obtained solid is washed and dried to obtain a porous organic polymer rich in heteroatoms. The monoaldehyde monomer is ferrocene carboxaldehyde, 3,5-dimethoxybenzaldehyde, p-hydroxybenzaldehyde, p-bromomethylbenzaldehyde or 1H-pyrazole-4-carboxaldehyde; the organic solvent is dimethyl sulfoxide; the protective atmosphere is nitrogen. The present invention uses a low-cost monomer containing a single aldehyde group and porphyrin as a reaction monomer, and synthesizes a series of heteroatom-rich porous organic polymers (POPs) through Schiff base polycondensation reaction, which can achieve three antibacterial effects of PTT, PDT and enzyme-like.

The utility model discloses waste gas monitoring quality control equipment which comprises a purification box, absorption liquid is arranged in the purification box, an air inlet pipe is fixedly connected to the top end of the purification box in a penetrating mode, a horn mouth is fixedly connected to the end of the air inlet pipe, and a dustproof assembly is arranged at the end, away from the air inlet pipe, of the horn mouth and comprises a dustproof net. The dustproof net is arranged at the end, away from the gas inlet pipe, of the horn mouth and used for preventing dust in waste gas from entering the purification box. The fixing frame is fixedly connected to the side of the dustproof net and used for fixing the dustproof net, and a mounting assembly used for mounting the fixing frame is arranged on the outer wall of one side of the fixing frame. Through the arrangement of the dustproof net and the fixing frame, dust can be effectively prevented from entering the purification box through the dustproof net, and the dissolution rate of harmful substances by absorption liquid cannot be reduced.

The fluorine content of the fluorine-doped ion sieve precursor is 0.2%-2%, and the particle size of the fluorine-doped ion sieve precursor is 80-150 nm. The invention also discloses a preparation method of the fluorine-doped ion sieve precursor. The preparation method comprises the following steps: preparing a manganese and lithium metal salt solution A, and preparing a citric acid solution B and a fluorine-containing salt solution D; mixing the solution A and the solution B, heating and stirring to obtain a colloidal solution C; performing vacuum drying on the solution C to obtain a solid intermediate; grinding the solid intermediate, and calcining in a muffle furnace to obtain an ion sieve precursor marked as LMO powder; weighing LMO powder, putting the LMO powder into a reaction kettle, and adding the fluorine-containing salt solution D and deionized water; placing the reaction kettle in a muffle furnace for heat treatment to obtain precursor slurry; and carrying out suction filtration, washing and drying on the precursor slurry to obtain the fluorine-doped ion sieve precursor. According to the invention, the ion sieve precursor is doped with fluorine, so that the electron transmission path of disproportionation reaction is changed, and the problem of manganese solution loss of LiMn2O4 in the process of adsorbing and extracting lithium is solved.

The invention provides a lithium extraction method for low-grade lithium ore. The lithium extraction method comprises the following steps: (1) mixing low-grade lithium ore, sulfate and disulfate, and roasting to obtain a raw material; and (2) the raw material is subjected to water leaching, and a lithium-containing leaching solution is obtained. According to the method, the bisulfate and the sulfate are adopted as the lithium extraction auxiliary materials to be roasted together with the low-grade lithium ore, and no acid or water is needed, so that corrosion of acid mist formed in the roasting stage to equipment is avoided, meanwhile, the lithium-containing leachate can have relatively low acidity, and the cost of the subsequent lithium extraction process is reduced.

The invention relates to a method for treating epichlorohydrin wastewater by using an iron-copper supported catalyst. The treatment method comprises the steps of preparing the iron-copper supported catalyst, adjusting the pH value of the epichlorohydrin wastewater, oxidizing the epichlorohydrin wastewater and the like. The epichlorohydrin wastewater treatment method is simple in technological process, easy and convenient to operate and mild in treatment condition, iron and copper metal ions are fixed to the surfaces of the aluminum oxide balls, the problem of iron / copper sludge is solved, the TOC degradation rate reaches 90% or above through the synergistic effect of the iron and copper metal ions, and therefore the epichlorohydrin wastewater treatment method has extremely good market application prospects.

The application provides a method for strengthening leaching of monazite optimal-soluble residue and relates to the technical field of hydrometallurgy. The method uses two-stage leaching to strengthen leaching: in a first-stage pre-leaching procedure, the optimal-soluble residue is pre-leached by using residual acid of leaching solution generated in a second-stage strengthening leaching, so as to increase the valuable metal content of the leaching solution and reduce the residual acid concentration, thereby reducing the dissolution rate of other impurity elements and improving the filtration performance of the ore slurry; the utilization rate of the residual acid is improved, and the overall acid consumption is reduced; the first-stage pre-leaching does not need heating, and the reaction heat is used to naturally heat the ore slurry, so that the energy consumption is effectively reduced; the reaction condition is relatively mild, and the requirement for the equipment and the operating environment is low; aging or standing is not needed, the operation is continuous, and the process is smooth; in the second-stage strengthening leaching procedure, the first-stage pre-leaching residue is strengthened and leached by using high acid, so that the valuable metal leaching rate is effectively improved; after part of the elements are recovered from the optimal-soluble residue by pre-leaching, the dissolved matter is relatively reduced under the condition of high acid, the ore slurry concentration and viscosity are reduced, and the solid-liquid separation effect is good.

The invention discloses a preparation method of black rice vermicelli with low dissolution rate of anthocyanin, which comprises the following steps: (1) selecting black rice as a raw material, whitening the black rice, and then respectively collecting the whitened black rice grains and black rice skins; (2) respectively milling the black rice grains and the black rice skin for 5-7 times by using a flour mill to obtain black rice flour and black rice skin flour; (3) milling the black rice skin powder for 3-5 times by using a colloid mill to obtain black rice skin pulp; (4) combining the black rice flour with the black rice skin pulp, uniformly mixing, and adjusting the moisture with drinking water to obtain a black rice vermicelli preparation material; (5) putting the black rice vermicelli preparation material into a preheated rice noodle machine to extrude vermicelli, and cutting the vermicelli according to a set length; and (6) drying the black rice vermicelli extruded from the rice noodle machine to obtain a black rice vermicelli product.

The present invention relates to a folic acid tablet and a preparation method thereof for improving stability and dissolution, wherein the folic acid tablet comprises the following raw materials according to each 100mg tablet: 0.4-5mg folic acid, 30-40mg calcium hydrogen phosphate, 25-30mg microcrystalline cellulose, 7-10mg low gelatinization degree starch, 15-20mg medium gelatinization degree starch, 2.2-3.5mg high gelatinization degree starch, 0.7-1mg colloidal silicon dioxide, 1-1.5mg stearate; the gelatinization degrees of low gelatinization degree starch, medium gelatinization degree starch, and high gelatinization degree starch are 10% to <25%, 25% to 40%, and 70% to 100% respectively. The present invention controls the dissolution rate of folic acid tablets and improves the compressibility of tablets, simplifies the preparation process, improves the stability of folic acid tablets, and simultaneously adds different proportions of gelatinization degree starch to control the early release rate of folic acid tablets.

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

The present invention belongs to the technical field of traditional Chinese medicine processing, and in particular, relates to a method for preparing licorice extract by processing licorice and its application. The present invention first pre-treats licorice slices with cold plasma, further adds 60-95% ethanol in a microwave reactor to microwave the licorice slices, and then repeatedly extracts them with hot reflux under the protection of an antioxidant, and finally separates and concentrates the extract to prepare an extract. In the present invention, the roasted licorice does not need to be crushed, and the active energy particles in the cold plasma are used to react with the surface of the licorice to produce surface etching, and at the same time, a large number of free radicals can be generated on the surface of the licorice to significantly increase wettability and hydrophilicity, and further cracks are generated in the microwave extraction, so that the solvent enters the interior of the licorice material and releases glycyrrhizic acid. The method of the present invention has high extraction efficiency and few impurities, and the prepared licorice extract can be widely used in various pharmaceutical preparations.

The invention discloses a weak acid substrate with low dissolution in a water sample and an application thereof. The weak acid substrate is prepared by polymerizing a hyperbranched unsaturated resin and a monomer containing a double bond and a carboxyl group at a mass ratio of 1:80-100 under the action of an initiator, and then crosslinking and curing. The structure of the weak acid substrate contains a hyperbranched unsaturated polymer, and a monomer containing a double bond and a carboxyl group is grafted into a side chain of the hyperbranched unsaturated polymer, so that the prepared weak acid substrate contains a large number of carboxyl groups. When the weak acid substrate is used for water sample detection, the reaction rate of the weak acid substrate and an alkaline substance can be increased, and the accuracy of alkalinity detection can be improved. When preparing the weak acid substrate, the excess monomer containing a double bond and a carboxyl group that has not reacted is washed away and then a crosslinking reaction is performed, so that the presence of the residual monomer containing a double bond and a carboxyl group in the system is reduced, the dissolution rate of the weak acid substrate in the water sample is reduced, and the accuracy of alkalinity detection is further improved.

The invention provides a porous aerogel adsorption material as well as a preparation method and application thereof, and belongs to the technical field of energy materials. The preparation method comprises the following steps: mixing and drying a water-soluble lithium salt and a titanium source to obtain a nanoscale mixed material, and roasting the nanoscale mixed material to obtain a titanium-based ion sieve precursor; the preparation method comprises the following steps: mixing a titanium-based ion sieve precursor with a binder to form slurry, cross-linking in a cross-linking agent solution to form hydrogel, and freeze-drying to obtain the porous aerogel adsorption material. The titanium-based ion sieve precursor is prepared through wet mixing, drying and roasting, and the problems that raw materials are large in grain size and uneven in mixing, and the titanium-based ion sieve is low in purity can be solved; the adsorption selectivity of carboxyl and lithium in the binder is improved through electrostatic attraction; the cross-linking agent can improve the adsorption rate and reduce the surface brittleness of the material.

This invention belongs to the field of materials technology, specifically relating to a high-adsorption-capacity lithium extraction adsorbent from salt lakes and its preparation method. The method involves first preparing a packing support, then dissolving AlCl3 and NaAlO2 in a mixed solution of boric acid and sodium hexametaphosphate, respectively. The packing support is added to the AlCl3-containing mixed solution, allowed to stand, and then a mixed solution containing NaAlO2 and a LiCl solution are added. Ammonia solution is then slowly added, controlling the pH at 4-5 and the temperature at 50-60℃. After centrifugation, the precipitate is dried. After elution for 5-8 hours, a high-adsorption-capacity lithium extraction adsorbent from salt lakes is obtained. In this invention, the adsorbent is LiAl-LDHs, a type of adsorbent composed of monovalent Li... + and trivalent Al 3+ The unique layered material composed of Li + By selectively entering the solid phase to form LiAl-LDHs, the adsorbent of this invention exhibits excellent performance in the field of lithium extraction from salt lakes.

The invention relates to the technical field of wastewater treatment, in particular to a CuMn2O4 / gamma-Al2O3 catalyst as well as a preparation method and application thereof. The CuMn2O4 / gamma-Al2O3 catalyst is composed of a carrier gamma-Al2O3 pellet and an active component CuMn2O4, and the carrier gamma-Al2O3 pellet is The CuMn2O4 / gamma-Al2O3 catalyst disclosed by the invention is applied to an ozone-hydrogen peroxide synergistic catalytic oxidation system for treating organic wastewater, and the activation capability of the surface to ozone and hydrogen peroxide is optimized by utilizing oxygen vacancies between Cu and Mn sites and cation migration characteristics, so that the degradation efficiency of organic matters is improved. The system not only solves the problems of low heterogeneous catalytic oxidation efficiency and poor catalyst stability in the prior art, but also remarkably improves the COD removal efficiency, keeps good cycle stability, and realizes efficient degradation of high-concentration organic pesticide wastewater and reutilization of the catalyst.

The present disclosure discloses an ultraviolet absorber composition and a cosmetic product. The ultraviolet absorber is diethylamino hydroxybenzoyl hexyl benzoate; a maximum particle size d(0.9) of the ultraviolet absorber is within a range of 50-100 µm; moreover, a width difference between a minimum particle size d(0.1) and a maximum particle size d(0.9) of the ultraviolet absorber is within a range of 30-100 µm; and the ultraviolet absorber has an effective span of not greater than 3 as determined by an instrument.

This invention relates to the field of wastewater treatment technology, specifically to an ozone catalyst, its preparation method, and its application. The ozone catalyst uses a composite material of boron-doped activated carbon and nitrogen-doped carbon dots as a matrix, and is loaded with manganese, cerium, and copper. The nitrogen-doped carbon dots effectively anchor metal ions, forming uniformly dispersed metal-nitrogen-doped carbon dot active sites, which not only prevents the aggregation of metal oxide nanoparticles but also maximizes the exposure of active sites. Simultaneously, combined with the stabilizing effect of CeO2, the metal active components are firmly anchored, reducing the metal dissolution rate. Furthermore, the hydrophobic-hydrophilic balance on the surface of the ozone catalyst support and the chemical inertness of the carbon material effectively reduce the irreversible adsorption of natural organic matter and anions in the water at the active sites, preventing catalyst deactivation and improving the catalyst's resistance to poisoning.

The invention belongs to the technical field of resource utilization of bulk industrial solid wastes, and specifically relates to a method for stabilizing and solidifying phosphogypsum. After adding 5‑10% active binder by dry basis weight, 0.5‑2.0% reinforcing agent, 1‑2% adsorbent and phosphoric acid to the phosphogypsum produced from wet-process phosphoric acid, and adjusting the pH value, the main pollutants dissolved in the mixture meet the Class A emission requirements of the first level standard in GB8978‑1996 Comprehensive Sewage Discharge Standard according to the horizontal oscillation method in HJ557‑2010 Solid Waste Analysis Method, that is, phosphorus content ≤ 0.5 mg / L, fluorine content ≤ 10 mg / L, total arsenic ≤ 0.5 mg / L, and pH 6‑9. The mixture is transported to the site for paving, rolling and coring tests. The 7-day unconfined compressive strength reaches 1.0‑2.0 MPa, and the 28-day unconfined compressive strength reaches 2.5‑6.5 MPa. It can be widely used for mine filling and road base materials, providing technical support for the resource utilization of phosphogypsum, which is of great historical significance.

The invention provides ecological ceramsite, a preparation method thereof and a wastewater treatment method, and relates to the technical field of wastewater treatment. The preparation method of the ecological ceramsite comprises the step of sintering a mixture of the copper tailings, the binder and the pore-forming agent to obtain the ecological ceramsite. The content of valuable components in the copper tailings is low, the copper tailings contain trace heavy metal elements, and resource utilization of the copper tailings is difficult to achieve through a traditional method. According to the method, solidification / stabilization of heavy metal elements in the copper tailings can be achieved, the dissolution rate of the heavy metal elements is remarkably reduced, the pollution risk to water and soil is reduced, and resource utilization of the copper tailings is achieved. The ecological ceramsite can be used as a treating agent to remove lead ions or phosphorus in wastewater, the preparation method of the ecological ceramsite has the advantages of being easy to operate and low in production cost, and the defects that in the existing wastewater treatment process, a treating agent is complex in preparation technology and high in production cost are overcome.

The invention discloses a composite material integrating sterilization and pain relieving as well as a preparation method and application thereof, and belongs to the technical field of biological medicines. The composite material is prepared by taking a porphyrin-triazine compound with two or more amino groups and a Schiff base iron compound with two or more aldehyde groups as structural units, polymerizing to obtain a porous organic polymer and loading bupivacaine hydrochloride. The preparation method comprises the following steps: taking a triazine-porphyrin compound and a symmetric dialdehyde Schiff base iron (symmetric dialdehyde-Salen-Fe (II), DSFe) compound as structural units, and carrying out solvothermal reaction to obtain P-POP; then, the P-POP and bupivacaine hydrochloride (BU) are subjected to a reaction, so that BU is loaded in the P-POP, and the composite material (P-POP-BU) integrating photo-thermal and pain relieving is obtained. The material has excellent biocompatibility, and can be directly smeared on the wound; and the repair of the wound can be promoted through photo-thermal sterilization and local pain relieving.

The present application relates to the technical field of metal wire surface treatment and industrial online monitoring, and relates to a green pretreatment process and an online monitoring system for a card wire with high lubrication and rust resistance. The present application removes the oxide layer by using a composite organic acid and ultrasonic waves at 80-85 DEG C after the card wire is mechanically stripped by multi-stage reverse bending. A multi-parameter online monitoring system is established. During the pickling process, Fe 2+ , pH, conductivity and linear velocity are monitored online in real time, and the pickling parameters are adjusted adaptively to overcome the fluctuation of manual experience. Then, the card wire is neutralized, rinsed, sprayed with modified boron liquid to form a lubricating and rust-proof film, dried and wound to complete the pretreatment. The present application effectively solves the problems of large acid mist pollution, easy damage to the substrate, poor process consistency and insufficient rust-proof ability between processes in the traditional strong acid pickling. The surface friction coefficient of the pretreated card wire is less than or equal to 0.075, and the red rust time is greater than 72 hours, which provides high-quality raw material guarantee for subsequent high-precision drawing processing.

The invention relates to the technical field of water treatment, and particularly discloses a cobalt hydroxide microsphere / metal organic framework composite catalyst as well as a preparation method and application thereof. The cobalt hydroxide microsphere / metal organic framework composite catalyst is prepared from the following raw materials: alkyl cobalt microspheres and metal organic framework nanoparticles; the weight ratio of the alkyl cobalt microspheres to the metal organic framework nanoparticles is 1: (0.1-5.0). The composite catalyst prepared by the invention has the characteristics of rapidly and efficiently exciting PMS in a water body to generate active free radicals to degrade emerging organic pollutants, is not easy to migrate and convert in a water environment, and has extremely low dissolution rate of main active substances and small harm to the environment.