1188results about How to "Not easy to precipitate" patented technology

The invention relates to a method for preparing a propylene catalyst by a propane dehydrogenation process and mainly solves the problem in the high-temperature and charcoal-burning process of the catalyst in the conventional preparation technology that a tin component is easy to reduce and separate out so as to influence the performance of the catalyst. The invention better solves the problem through the technical scheme comprising the following steps of: firstly, introducing the tin component into an aluminum sol by a sol-gel method, and drying and forming the mixture to obtain a tin-containing alumina supporter; secondly, loading a platinum component and other metallic aids by an impregnation method, namely impregnating the tin-containing alumina supporter into aqueous solution of soluble salt of platinum and other metals; and finally, drying, roasting and dechlorinating the product to obtain the platinum-tin catalyst. The method of the invention can be used for industrial preparation of the propylene catalyst by the propane dehydrogenation process.

The invention discloses a heavy metal stabilizing agent and a method for treating heavy metal contaminated soil by using the heavy metal stabilizing agent. The heavy metal stabilizing agent is prepared from the following raw materials in percentage by weight: 40 to 50 percent of phosphate, 20 to 25 percent of bentonite, 25 to 30 percent of fluor apatite and 4 to 6 percent of sodium chloride / potassium chloride. When the heavy metal stabilizing agent is used for treating the contaminated soil, the heavy metal stabilizing agent and water are mixed together to form a suspension, then the suspension is added into the heavy metal contaminated soil, and the suspension and the heavy metal contaminated soil are fully mixed. The heavy metal stabilizing agent has high stability for treating soil, and the technical problem that the conventional curing agent and curing method cause reverse dissolution easily is solved.

The invention provides a phosphor-rich graphene flame-retardant agent with a structural formula shown in the description. The invention also provides a preparation method of the phosphor-rich graphene flame-retardant agent. The preparation method is characterized in that graphene oxide is used as a basic raw material, reactive groups at both ends of a silane coupler containing a silicon carbon layer improving agent are fully utilized, one end of the silane coupler is connected with acid source components, such as CEPPA (carboxyethyl phenyl phosphinic acid), DOPO or derivatives, and the other end of the silane coupler is connected with the graphene oxide, so as to obtain a macromolecular flame retardant integrating a physical carbon layer, an acid source and the carbon layer improving agent. The phosphor-rich graphene flame-retardant agent has the advantages that the flame-retardant efficiency is high, the polarity is low, the moisture absorbing property is little, and the mechanical property of the material can be well maintained; by not containing halogen, the flame-retardant agent is friendly to the human body and environment, and meets the green development direction of future flame-retardant agents.

The invention provides a water soluble fertilizer containing high-concentration humic acid. The water soluble fertilizer comprises, by weight, 15-25 parts of a water soluble humic acid salt, 18-25 parts of urea, 9-15 parts of dipotassium hydrogen phosphate, 8-13 parts of potassium acetate, 0.5-2 parts of borax, 0.1-10 parts of polyglutamic acid, 1-5 parts of rhamnolipid, 5-10 parts of a hydroxymethyl cellulose aqueous solution and 30-40 parts of water. The water soluble fertilizer has humic acid content greater than or equal to 150g / L. The invention also provides a preparation method of the water soluble fertilizer containing high-concentration humic acid. The preparation method comprises the following steps of 1, carrying out heating stirring of the water soluble humic acid salt and water to obtain a humic acid salt solution, 2, adding dipotassium hydrogen phosphate, potassium acetate, borax, polyglutamic acid, rhamnolipid and urea into the humic acid salt solution, and carrying out heating stirring to obtain a mixed solution, and 3, carrying out emulsification of the hydroxymethyl cellulose aqueous solution and the mixed solution to obtain the water soluble fertilizer containing high-concentration humic acid. The water soluble fertilizer has obvious fertilizer efficiency, is environmentally friendly, stable and uniform and has a wide application range.

The invention provides a composite chemical oil displacement agent for tertiary oil recovery in an oil field. The oil displacement agent comprises an anion surfactant, a cation surfactant and a nonionic surfactant. The oil displacement agent is characterized in that the cation surfactant consists of branched chain alkyl quaternary ammonium salt and chlorine ions or bromine ions; the anion surfactant is hybridized sulfonate or sulfate or carboxylate with multiple ethylene oxide (EO) groups; the nonionic surfactant is a surfactant with a branched chain hydrophobic group and an EO group; and the raw materials are evenly stirred in a kettle so as to obtain the composite oil displacement agent. Through formation of zwitterion pairs, the composite displacement agent can form a compact interface absorption film, and the stability of the composite displacement agent is improved because a non-ionic surfactant is added, so that the composite displacement agent is not easy to precipitate.

The invention discloses a water-based dye ink and an application thereof. The water-based dye ink comprises the following components in percent by weight: 0.2 to 12 percent of water-soluble dye, 55 to 80 percent of modified acrylic resin emulsion, 0.01 to 1 percent of ultraviolet absorbent and balance of water, and different additives can be added. The dye ink can be applicable to the fields such as jet ink, cipher paint ink, textile printing ink, water-type printing ink, fountain pen ink and water ball pen ink, and has the advantages of water resistance, oil resistance, scratch resistance, illumination resistance, high temperature resistance, low temperature resistance, good color reducibility, duration and the like.

A strong while emulsion is prepared from polyvinyl alcohol, sodium hydroxide, starch, hydrochloric acid, formaldehyde, urea and water. Its advantages are high resistance to freeze and water, high stability and adhesion, no irritative odor, and low cost.

The invention discloses an antibacterial biaxially-oriented polylactic acid (BOPLA) film and a preparation method thereof. The polylactic acid film comprises the following components in parts by weight: 100 parts of a material special for a biaxially-oriented polylactic acid film and 0.4-3 parts of an antibacterial agent, wherein the film is prepared with a biaxial orientation method, and is 10-100 mum in thickness; the antibacterial agent is a poly-guanidine / polysilicate compound antibacterial agent, and is prepared by mixing a water-soluble poly-guanidine inorganic acid salt or an aqueous solution of an organic acid salt and an aqueous solution of water-soluble silicate, and adding an aqueous solution of a water-soluble metal salt; the molar ratio of the water-soluble poly-guanidine inorganic acid salt or the organic acid salt to the water-soluble silicate is 10:1-1:50; and the molar ratio of the water-soluble silicate to the water-soluble metal salt is 5:1-1:3. The antibacterial BOPLA film has the characteristics of high antibacterial efficiency, small using amount, good antibacterial effect and high water stability, and has a wide application prospect.

The invention provides a glaze for fast-fired crystal glaze ceramic tile and a preparation method and applications of ceramic tile. The glaze comprises basic crystal glaze and a color developing agent, wherein the basic crystal glaze comprises the following raw materials: zinc oxide, titanium dioxide, quartz, cryolite, zinc phosphate, kaolin, and lead frit. A proper amount of zinc phosphate is introduced into the glaze to avoid the raw material frit treatment, which is carried out to ensure the residual amount of nucleating agent, the requirements on the glaze granularity are reduced, the manufacture technologies of crystal glaze and ceramic tiles are simplified, and the technical difficulties that the crystal glaze sintering technology is complicated, the crystal patterns are difficult to control, and the production cost is high are solved. Moreover, the addition amount of quartz and lead frit is precisely controlled to obtain crystal glaze art ceramic tiles which have the advantages of good crystallization effect, strong three-dimensional effect, and good artistic effect. The provided preparation method has the advantages of simpleness, lower sintering temperature, shorter period, and suitability for massive industrial production.

The invention relates to a composite heat stabilizer for hydrophobic nano-hydrotalcite PVC, comprising the following raw materials according to the mass percent: 30-50 of calcium stearate, 10-20 of zinc stearate, 10-30 of hydrophobic nano-hydrotalcite, 5-15 of lubricant, 4-7 of surface modifier and 5-15 of auxiliary heat stabilizer. With the method of coprecipitation, the hydrophobic nano-hydrotalcite is added with eunatrol to prepare hydrophobic nano-hydrotalcite including Mg and Al with the mol ratio of 2-3:1. The nano-hydrotalcite prepared by the invention has good hydrophobic nature. Good compatibility with a PVC basal body can be achieved if the nano-hydrotalcite is used in a composite heat stabilizer for PVC. Advantages of difficult precipitation and good stabilizing effect can be achieved when the nano-hydrotalcite is used as a stabilizer for plastic processing of PVC, and the like. The addition of the hydrophobic nano-hydrotalcite can reduce the balance torque, improve the processing property and reduce the cost. The preparation method causes no pollution and has low energy consumption.

The invention provides a toothbrush hair having an anti-bacterial and health-caring function and a preparation method thereof. The toothbrush hair includes the following raw materials, by weight, 75-90% of a polymer, 3-20% of a natural anti-bacterial agent, 1.8-3% of pomegranate seed oil, and 1.2-2% of a coupling agent. The natural anti-bacterial agent is prepared from following components comprising, by weight, 75-90% of loess powder, 4-10% of an extract of commelina communis, 3.5-9% of an extract of herba houttuyniae and 2.5-6% of an extract of caryopteris incana. By means of the technical scheme, the toothbrush hair is produced through various process methods. The toothbrush hair is wide in anti-bacterial spectrum, is high and durable in efficiency and is safe to use, has excellent light-prevention, wear-resistant and aging-resistant performance, has the health-caring effect of increasing fragrance and protecting teeth, is beneficial to environment cleaning and odor eliminating, has the effects of preventing and controlling decayed tooth and periodontal diseases, is good in anti-dirt property, rebound elasticity, flexibility and hydrophobicity, is free of deformation, is long in service life, is low in production cost and is easy to popularize.

The present invention provides a preparation method for aqueous polyurethane. The method comprises the following steps: mixing aliphatic diisocyanate, an aliphatic polyol, dimethylol propionic acid and a catalyst, and carrying out a reaction to obtain a prepolymer; adding a neutralizing agent to the prepolymer, and carrying out a stirring reaction to obtain an intermediate product; adding water and a chain extender to the intermediate product, stirring and dispersing to obtain the aqueous polyurethane, wherein the chain extender is polyoxyethylene polyamine or polyoxypropylene polyamine. The invention further provides the aqueous polyurethane prepared by the method. According to the present invention, the bulk polymerization method is adopted, the use of the organic solvent is not required, and no environmental pollution is generated; the polyoxyethylene polyamine or the polyoxypropylene polyamine is adopted as the chain extender, and is used for emulsion chain extending, such that the obtained polyurethane emulsion has good film-forming flexibility, the mechanical property of the obtained polyurethane can not be reduced, the large R value is not required, and the final produced polyurethane film is soft.

The invention discloses a lactobacillus leavening agent, a preparation method thereof and a special bacterial strain. The preservation serial number of lactobacillus is CCTCC M208151. An active constituent of the lactobacillus leavening agent is the lactobacillus. The invention also discloses a method for preparing the lactobacillus leavening agent, which comprises the following steps: firstly, leavening and culturing lactobacillus plantarum SC79 CCTCC M208151 in SC79 optimal culture medium; and secondly, collecting thallus in the step 1 and then adding a protective agent to the thallus to obtain the leavening agent. The lactobacillus leavening agent has small dosage, quick acid production speed through mixing the lactobacillus leavening agent and a harvestless exopolysacchatide yoghourt bacterial strain to prepare yoghourt, better relative viscosity, elasticity, denseness and adhesiveness than that of the conventional yogurt and small syneresis sensibility of formed sticky yogurt colloids, larger water holding capacity than that the conventional yogurt and hard whey separation.

The invention discloses a high weather-proof, multiple-effect, environmentally-friendly PVC composite heat stabilizer which is composed of the following raw materials in percentage by weight: 20-40% of calcium stearate, 15-25% of zinc stearate, 10-30% of hydrophobicity nano-hydrotalcite, 1-1.5% of hyperdispersant, 5-15% of lubricating agent, 4-7% of surface modifier and 5-15% of assistant heat stabilizer, wherein, hydrophobicity nano-hydrotalcite is prepared with a coprecipitation method by adding sodium oleate, and the molar ratio of Mg to AL in hydrophobicity nano-hydrotalcite is 2-3:1; the hyperdispersant is copolymer of maleic anhydride-sodium allyl sulfonate-crylic acid polyethylene glycol monoester. The nano-hydrotalcite prepared by the invention has better hydrophobic property and favorable compatibility with PVC matrix. Hydrophobicity nano-hydrotalcite and hyperdispersant are added to lower balancing torque, improve handling characteristics and weather resistance and lower cost. The preparation method of the invention has no pollution and low energy consumption.

The invention relates to the textile printing and dyeing technical field and aims to provide a low temperature non-foaming soaping agent and a preparation method thereof. The method comprises the following steps: mixing acrylic monomer, maleic anhydride monomer and deionized water evenly, dropping sodium hydroxide solution to be neutral, then adding colloid protecting agent, mixing evenly; performing nitrogen replacement to the solution, heating to 60-80 DEG C, then dropping vinylpyrrolidone monomer and initiator solution in the solution to perform copolymerization, reacting for 1-6 hours under the protection of nitrogen, and naturally cooling to less than 45 DEG C. In the preparation method of the invention, polymer is difficult to layer and precipitate, the production process is easy to control, the prepared polymer soaping agent solution has high stability; the soaping effect is excellent; in the soaping process, foams are not generated, water and energy are saved and the process flow is shortened; the anti-staining effect is excellent; the soaping temperature is 20-40 DEG C lower than that of the conventional soaping agent, thus greatly saving energy consumption; and the environment is not polluted.

A method for preparing ceramsite light aggregate by utilizing sludge belongs to solid waste treatment, proposal and resource technical field, which produces dry sludge through thermal drying dehydrated mud cake whose moisture percentage is 75-85%, wherein the dry sludge is broken and sieved through 45 mm screen, 18-25% fly ash by mass of the dry sludge is charged to stir, the stirred hybrid material is injected in the powder tablet compressing machine to squeeze and mould under the pressure of 8 Mpa to obtain ceramsite light aggregate blank, the blank is heated to 350 DEG C and is stayed for 20 min in order to lead to volatilize and exhaust completely and is calcined under the temperature of 1080-1100 DEG C for 30 min and is cooled to indoor temperature naturally, and then the ceramsite light aggregate is obtained. The invention for processing living sewage and sludge improves strength of the calcined product, and saves the calcined energy consumption greatly. The obtained ceramsite light aggregate is compact in uranium face, light in weight, high in strength, and satisfies national standard GB / T17431.2-1998, which can be used in the projects such as buildings, roads, bridges and the like.

The invention discloses a maca composite beverage. The beverage is prepared from raw materials of, calculated by 800 to 1200kg of the beverage: 10 to 20kg of maca, 10 to 30kg of okra, 1 to 5kg of male silk moth, 0.1 to 0.5kg of arginine, 0.1 to 0.5kg of potassium sorbate, 1 to 3.5kg of citric acid, 0.05 to 0.15kg of trichlorosucrose, and an appropriate amount of water. The maca composite beverage contains no sugar and low heat. The beverage provides healthcare functions of fatigue resisting, pressure releasing, health enhancing, body strengthening, and male function enhancing. The invention also discloses the preparation method of the maca composite beverage. Maca, okra, male silk moth, arginine, citric acid, trichlorosucrose and potassium sorbate are adopted as main materials; the materials are processed through enzymolysis, extracting, mixing and filtering, such that the composite beverage is prepared. The operation is simple, and the method is suitable for industrialized productions.

The invention belongs to the technical field of a lithium ion battery, and relates to a preparation process of lithium ion battery negative paste, a lithium ion battery negative pole plate and a lithium ion battery. The preparation process of the lithium ion battery negative paste comprises the following steps of (a) mixing a negative active substance, a conductive additive, a dispersion agent anda thickening agent in a dried way to obtain mixed powder; (b) adding a solvent, performing uniform mixing to obtain primary paste with solid content being 67-69wt%; (c) adding the solvent again, performing uniform mixing to obtain secondary paste with solid content being 58-62wt%; (d) adding the solvent again, performing uniform mixing to obtain third paste with solid content being 54-56wt%; and(e) adding a binding agent into the third paste, and performing uniform mixing to obtain the lithium ion battery negative paste. The process is simple and is easy to operate, the preparation time canbe remarkably prepared, the equipment utilization ratio is improved, meanwhile, the mixing is uniform, and the dispersion performance, the consistency and the fineness of the paste are improved.

The present invention relates to a water-absorbent expansive composition, the application of the water-absorbent expansive composition, water-absorbent expansive material containing the water-absorbent expansive composition and packers made of the water-absorbent expansive material. The water-absorbent expansive composition of the present invention is made of water-absorbent agent, reaction monomer and surfactant. The water-absorbent agent is a naturally hydrophilic polymer or the derivative; the reaction monomer is monomer containing water-absorbent group such as carboxyl, hydroxyl, ether group, aroylamino, sulfonic group, carboxylate group, sulfonate group, quaternary ammonium salt monomer, or hydrophilic vinyl monomer after hydrolysis. The monomer contains double bonds and can be cross-linked with water-absorbent agent. Wherein, the weight content of the water-absorbent agent is 3 portion to 100 portion; the weight content of the reaction monomer is 0 portion to 30 portion; the weight content of the surfactant is 0 portion to 70 portion.

The invention relates to a process for preparing human immunoglobulin for intravenous injection, and belongs to the field of biological pharmacy. The precipitate of components II and III in the process for preparing the human immunoglobulin for intravenous injection is treated by a caprylic acid and calcium chloride precipitation method, miscellaneous proteins are removed from the precipitate of the components II and III, and two-step chromatography is performed. Compared with the general caprylic acid precipitation method, the process has the advantages that various blood coagulation factors are effectively removed from a precipitate solution of the components II and III by adding calcium chloride, the stability of the immunoglobulin is improved, and the yield of the product is obviously improved, namely more than 7g of immunoglobulin can be prepared from each liter of blood plasma; upper column chromatographic purification is performed by two ion exchange columns and a chromatographic technology, so that the miscellaneous proteins can be effectively removed, and the purity of the product is over 99.5 percent; and in addition, caprylic acid is added, and viruses are removed and filtered by a DV20 filter element, so that a virus removing effect can be obviously improved, and the safety of clinical medication is improved.

The invention belongs to the technical field of experimental devices for scientific researches on in-situ leaching uranium mining, and particularly relates to a leaching experimental facility for in-situ leaching uranium mining. A gas source comprises an oxygen source and a carbon dioxide source; gas and liquid are mixed and dissolved by using a magnetic stirring device in a stirring container; dissolving pressure is controlled by a nitrogen cylinder via a stirring container pressure return valve; the pressure provided by a plunger pump is adjusted through an intermediate container pressure return valve in an experiment until the pressure in a liquid injection intermediate container is the same with the pressure in the stirring container; leaching liquid is pressed in the liquid injection intermediate container by a pressure adjusting portion; a rock core is arranged in a full-diameter rock core holding unit; a ring pressure pump and a pressure sensor are arranged at two ends of the holding unit; an outlet end is provided with a leaching pressure return valve; formation pressure is simulated; oxygen in leaching agent is controlled so that the oxygen cannot be separated out; the mass of the liquid is measured by a balance measuring system; and the experiment is automatically controlled by a computer.

The invention provides a photophobic medical soft polyvinyl chloride plastic and a preparation method thereof. The photophobic medical soft polyvinyl chloride plastic comprises the following compositions in part by weight: 100 parts of polyvinyl chloride resin, 10 to 90 parts of plasticizer, 1 to 10 parts of stabilizer, 1 to 10 parts of auxiliary stabilizer, 0.1 to 2.0 parts of ultraviolet absorber, 0.1 to 0.5 part of auxiliary antioxidant and 0.1 to 6 parts of surfactant. In the photophobic medical soft polyvinyl chloride plastic, a proper opacifier and the surfactant are selected, pohydrophilic and oleophilic property of the surfactant are utilized, the photophobic medical soft polyvinyl chloride plastic is dispersed more evenly and combined more firmly in a system containing a lipoid plasticizer, the use amount of the opacifier is reduced, and a pigment is difficult to separate out; and the photophobic medical soft polyvinyl chloride plastic has good dissolution resistance, and is suitable for producing special liquid bags, conduits, medical accessories, drip chambers and various disposable medical products. Various indexes of a reduction material and the like of a finished product meet the requirement of GB18458.3-2005 standard; and the photophobic range can meet the special requirement and is even expanded to all wave bands.

The invention relates to a ceramic tile with a bugled particle effect and a preparation method of the ceramic tile. The method comprises the steps of applying cover glaze with a specified formula to a blank body, wherein the sintering temperature of the cover glaze is more than 1120 DEG C, and by weight percent, the cover glaze comprises more than 57% of SiO2 and more than 22% of Al2O3; applying dry granular glaze slurry to the blank body coated with the cover glaze through a linear glaze sprayer, wherein the specific gravity of the dry granular glaze slurry is 1.27-1.38g / mL.

The invention discloses energy-saving diesel engine oil with ultra-long oil change mileage and a preparation method thereof. The energy-saving diesel engine oil is prepared from, by mass, 10-18% of diesel engine oil complexing agent, 0.3-0.8% of anti-wear agent, 0.5-1.5% of antioxidant, 3-8% of viscosity index improver, 0.002-0.005% of anti-foaming agent and the balance synthesized basic oil. The energy-saving diesel engine oil has high wear resistance and friction reduction performance, high oxidation stability and high thermal stability, and the oil change cycle can be effectively prolonged; by means of the anti-wear agent without sulfur and phosphorus, the wear resistance and friction reduction performance are effectively improved, and the oxidation of an oil product can not be accelerated; alkyl multi-benzyl toluene is added to basic oil, and through the good complexing effect of alkyl multi-benzyl toluene and antioxidant, the antioxidant performance of the oil product is improved, the use cycle of the oil product is greatly prolonged, and the ultra-long oil change aim is achieved.

The invention discloses an ultraviolet-absorbing coating and a preparation method thereof. The ultraviolet-absorbing coating is characterized by being prepared by uniformly mixing 40-60 parts by mass of cyclohexyl methacrylate, 10-20 parts by mass of hydroxyethyl acrylate, 20-50 parts by mass of ultraviolet-absorbing monomer, 100-200 parts by mass of solvents, and 0.1-2.0 parts by mass of an initiator as raw materials at below 15 DEG C and carrying out copolymerization reaction at a temperature of 75-80 DEG C under the protection of nitrogen. By copolymerizing the monomer having an ultraviolet-absorbing function and other acrylate monomers, the coating having excellent ultraviolet-absorbing property is prepared; since the coating has excellent ultraviolet-absorbing property, the transmittance of 365nm ultraviolet light can be less than 1.5% while the transmittance of the conventional ultraviolet absorber is usually above 5%. The ultraviolet-absorbing coating is suitable for being applied in the fields having anti-aging and anti-yellowing requirements, such as solar cells, liquid crystal displays, outdoor advertising, buildings and automotives.

The invention discloses a preparation method of expansible graphite modified high-flame-retardant rigid polyurethane foam. The preparation method includes the steps that firstly, white materials are prepared, wherein polyester polyol, polyether polyol, structural flame retardant polyether polyol, foam homogenizing agents, liquid fire retardant, fermentation catalysts, gel type catalysts, trimerization catalysts and water are evenly mixed, then graphite is added, foaming agents are added to the evenly mixed mixture, and the white materials are obtained; the prepared white materials are mixed with black materials according to the mass ratio of 1:1.5-1.8, the mixture is stirred and injected into a constant-temperature die for foam aging, and the rigid polyurethane foam is obtained, wherein the black materials are polyisocyanates. By means of the preparation method of the expansible graphite modified high-flame-retardant rigid polyurethane foam, the oxygen index of the rigid polyurethane foam is raised, the combustion performance can reach the non-combustible level, the mechanical strength and size stability are good, and the heat conductivity coefficient is low; compared with a similar product in the market, a great price advantage is achieved, and machining and forming are easy; the added fire retardant is free of volatility, not prone to being separated out, low in toxicity and durable in flame retardant effect.

The invention discloses a sow-milk-substitute fodder for piglets, comprising expanded corns, lactose and / or a whey powder, soy protein isolate, carried compound multivitamin carriers, and supported compound multi-mineral for piglets. The sow milk substitute has the advantages that the nutritional requirements of piglets are sufficiently satisfied for the improved digestive rate by utilizing simulation milk nutritional ingredients in line with the digestive psychology of piglets; growth problems of weak piglets caused by low birth weight, inadequate sow milk and low weaning weight are solved; since the weight and health level of the weak piglets can reach or approach to the growth standard like normal piglets after feeding by the milk substitute, the survival rate of piglets is improved, thus the annual marketing rate in hogpens is correspondingly increased.

The invention discloses a preparation method and application of a heparan polyurethane blended modified polyethersulfone hollow fiber membrane. The preparation method is characterized by comprising the following steps of: adding 10 to 25 weight parts of diphenylmethane diisocyanate, 5 to 13 weight parts of dimethylolpropionic acid and 62 to 85 weight parts of solvent into a dissolving kettle, performing reaction for 4 to 12 hours at a temperature of 70 to 90 DEG C, washing the product with methanol and distilled water and drying to obtain carboxyl-containing polyurethane; adding 10 weight parts of polyurethane into 100 weight parts of concentrated sulfuric acid to carry out sulfonation to obtain polyurethane containing carboxyl and a sulfonic acid group; adding 1 to 10 weight parts of heparan polyurethane, 10 to 25 weight parts of polyethersulfone and 70 to 89 weight parts of solvent into the dissolving kettle to dissolve for 2 to 24 hours at a temperature of 75 to 95 DEG C so as to obtain hollow fiber membrane spinning dope; and preparing the hollow fiber membrane with excellent blood compatibility, permanent hydrophilicity, capacity of resisting to protein pollution and an anticoagulation function by adopting a dry spraying and wet spinning technology.

The invention relates to a manufacture method of a light-emitting diode packaging structure, which comprises the steps of: firstly, providing a loader and a light-emitting diode chip, wherein the light-emitting diode chip is configured on the loader and is positioned in a pit; secondly, filling a first packaging colloid in the pit, wherein the first packaging colloid covers the light-emitting diode chip, a fluorescent material is doped in the first packaging colloid; thirdly, carrying out first roasting to enable the first packaging colloid to be in a semi-curing state; and fourthly, filling a second packaging colloid in the pit, wherein the second packaging colloid covers the first packaging colloid.

The invention discloses an adsorbent for simultaneously removing heavy metals and phenol organics in wastewater. The adsorbent is obtained by modifying bentonite with a quaternary phosphonium salt cationic surfactant and a chelating agent. The invention also discloses a preparation method of the adsorbent. The preparation method comprises the following steps of: 1) throwing the surfactant into water and heating and stirring the surfactant until the surfactant is completely dissolved; 2) throwing original bentonite into the solution and stirring the original bentonite under room temperature; 3) adding the chelating agent and continuing stirring under room temperature; and 4) drying the product after washing and filtering, grinding and sieving the product with a 100-mesh sieve and placing the obtained product in a dryer under room temperature for later use. The adsorbent and the preparation method have the following advantages that the quaternary phosphonium salt cationic surfactant is firstly exchanged into interlayers of bentonite and the chelating agent also enters the interlayers through hydrophobic bond of the cationic surfactant, thus enlarging the layer distances and ensuring the interlayers to have hydrophobicity and enhancing adsorption of the phenol organics; meanwhile, the chelating agent and the heavy metals form coordination complexes; the adsorbent has a good effect on simultaneously removing heavy metals and phenol organics in mineral processing wastewater; and the removal rates of Cd2<+> and phenol organics in the actual mineral processing wastewater are respectively 88.1% and 99.9%.