38results about How to "Potential for industrialization" patented technology

The invention relates to a method for processing zinc oxide ore or zinc oxide secondary resource to prepare superfine active zinc oxide. The method comprises the following steps: ammonium leaching: using zinc oxide ore containing 2-60% of zinc or complex zinc oxide secondary resource as raw material, extracting in an ammonium system coordinately, filtering to remove the residue, wherein the filtrate is applied to the next process; replacement and purification: replacing and purifying the extracted filtrate with zinc powder to eliminate impure elements, and then filtering and removing the residue, wherein the filtrate is applied to the next process; pulverization and drying: decomposing the purified filtrate through high-temperature pulverization to prepare powder A, condensing, spraying and absorbing the tail gas which is then returned to the leaching process to prepare the extracting agent; and toasting: toasting the powder A to obtain superfine active zinc oxide. The purified liquidcan be used for directly preparing even powder through efficient pulverization and drying. The technological process of the method has a circular loop so that a small amount of waste gas and waste water is discharged. The method has a rational tail gas heat exchanger. Ammonia gas is recycled in a condensing manner to prepare the leaching liquid. The rest of the ammonia gas is absorbed through spraying, thereby reducing the discharge pressure of three wastes, namely, waste gas, waste water and industrial residue.

The invention relates to a method for preparing a rutile type titanium dioxide nanorod microsphere. The method comprises the following steps of (1) mixing concentrated hydrochloric acid, deionized water and non-polar solvent, adding titanium alkoxide in the mixed solvent drop by drop under a magnetic stirring condition, after the titanium alkoxide is added, continuously stirring the mixture for 30-60 minutes, so that the titanium alkoxide can be fully hydrolyzed to form layered mixed solution; and (2) transferring the mixed solution to a high pressure reaction kettle to perform solvothermal reaction, after the reaction is finished, naturally cooling the high pressure kettle by placing the reaction kettle at a room temperature, and repeatedly washing and centrifugally separating the obtained precipitate to obtain the titanium dioxide nanorod microsphere. According to the method provided by the invention, the solvothermal reaction is carried out in the interface of polar / non-polar solution by adopting the titanium alkoxide, the process route is simple and convenient, no surfactant is required; the prepared titanium dioxide nanorod microsphere is good in dispersion, high in degree of crystallinity, large in specific area, and can be used in various fields of photochemical catalyst, paints, cosmetics, new energy and the like.

A method for preparing cerium dioxide nanometer powder includes: dissolving Ce(NO3)3-6H2O in deionized water to obtain Ce(NO3)3 solution; adding ethidene diamine and KBrO3 into the Ce(NO3)3 solution to continuously and evenly stir to obtain mixed solution; and transferring the mixed solution into a reaction kettle, placing the mixed solution into a microwave hydrothermal instrument to react for 0.5-1.5h at the temperature of 160-200 DEG C, performing centrifugal washing after the reaction, and drying at the temperature of 80 DEG C to obtain CeO2 nanometer powder. The method for preparing cerium dioxide nanometer powder is low in cost and easy to operate and control. The CeO2 powder prepared by the microwave hydrothermal method can be directly applied to preparation of mixed and compounded CeO2 nanometer powder, and a new application is provided for preparation of a CeO2-based new material. Compared with the traditional hydrothermal method, the microwave hydrothermal method has the advantages of being environment-friendly, energy-saving and efficient.

The invention discloses a dipeptide high sweetening agent and a synthesis method thereof. The synthesis method comprises the steps of an esterification reaction, an alkylation reaction, a reduction reaction, protection and deprotection reactions, an oxidation reaction and a reductive amination reaction. According to the invention, methanol and 3,3-dimethyl acrylic acid are used as initial raw materials, and 4,4,5,8-tetramethyl-3,4-dihydrocoumarin is obtained by the esterification reaction and the alkylation reaction; LiAlH4 is used as a reducing agent, and 3-(2-hydroxyl-3,6-dimethylphenyl)-3-methylbutanol is obtained through reduction; the protection and deprotection reactions are carried out, and the intermediate 3-(2-acetyl-3,6-dimethylphenyl)-3-methylbutyraldehyde of a neotame analogueis obtained through the oxidization of the alcohol; and then a reaction with aspartame is carried out for synthesizing the dipeptide high sweetening agent with a sweetness of 70000 times of sucrose. The dipeptide high sweetening agent has excellent performance and good taste, and can meet the requirements of the current development of food industry. The synthesis method optimized by the inventionis simple in technical process and convenient in operation, the production process is green and environmentally friendly, the cost is relatively low, the method accords with the green development, andthe realization of industrialization is easy.

The invention belongs to the field of pharmaceutic preparations, and relates to a melatonin delayed release tablet and a preparation method thereof. The delayed release tablet is composed of a double-layer tablet core and a compression coating which covers around the tablet core and plays a role of time lag. The double-layer tablet core comprises a medicated controlled release layer and a swellinglayer, wherein the swelling layer can be obviously swelled when wet so as to cooperate with the coating to regulate the drug-release starting point. After a patient orally takes the preparation, dueto the existence of the retardant coating, a drug is not released immediately, but after a certain time, the internal swelling layer is obviously swelled when wet to result in fracture of the coating,the medicated layer is exposed, and the controlled-release skeleton regulates release of the drug. The melatonin delayed release tablet has the advantages that the melatonin preparation has the functions of delayed release and controlled release, and the preparation method for the melatonin preparation is provided.

The invention provides a shell material used for a power generator. The shell material comprises a wood layer, a PVC (Polyvinyl Chloride) layer and a rubber layer, wherein the wood layer is fitted on one side of the PVC layer; the rubber layer is fitted on the other side of the PVC layer; and the wood layer, the PVC layer and the rubber layer are fitted to form a whole body. By utilizing a combined design of the material, the material with a prominent noise reduction effect is obtained through structure optimization on the basis of respective characteristics of wood, PVC and rubber; and a power generator shell prepared from the material can be used for effectively isolating noises so that noise pollution in an application process is reduced. The prominent technical effect is obtained through a creative technical idea; and meanwhile, the shell material has relatively low cost, is easy to realize and extremely has industrialization potential.

A preparation method of a polyurethane-imide infiltrated and vaporized aromatic hydrocarbon and alkane separation membrane belongs to the infiltrated and vaporized membrane separation technical field.The factors of the prior polyurethanes membrane separation is low, and a plurality of the prior polyurethanes membrane separations need a test of an infiltrated and vaporized separation performance at high temperature. The present invention includes firstly a prepolymer synthesis of polyurethane and imide is that under the conditions of a nitrogen protection, a mechanical mixing and a condensation circumfluence, a terminated prepolymer is obtained by a reaction of poly (ethylene adipate) glycol diol and diisocyanate, and pyromellitic dianhydride is added for a chain extension to obtain the polyurethane-imide prepolymer solution; secondly the preparation of a polyurethane-imide membrane is that the solution casts to form the membrane and an impregnant is volatilized under an infrared light, and the preparation of membrane can be finished after a heat treatment of 150 DEG C for 1.5 to 2 hours. The material synthesis and the membrane-preparation process of the present invention are simple, and the prepared membrane has a good thermal and chemical stability, and the prepared membrane can separate an aromatic hydrocarbon and alkane mixture under a proper temperature condition with a good separation effect as well as with a considerable practical value.

The invention discloses a preparation method of an anti-pollution aliphatic PVC anion exchange membrane. The preparation method comprises the following steps: 1) preparing a PVC base membrane; and 2)soaking the PVC base membrane prepared in the step 1) in a 50-70 wt% triethylene tetramine aqueous solution at 30-60 DEG C, reacting for 2-14 hours, and taking out to obtain the aliphatic PVC anion exchange membrane. According to the invention, quaternization and cross-linking of the PVC membrane are completed by adopting a one-step soaking method, the preparation process is simple, the conditionsare mild, and the obtained anion exchange membrane c-QPVC-N has a hydrophilic membrane surface and an aliphatic membrane matrix, so that the c-QPVC-N has good anti-pollution capability and has industrial potential.

The invention provides a double-shell asymmetric semiconductor material and a super-assembly method thereof. The method comprises the following steps: 1, dissolving a template agent in water to form auniform microemulsion system, adding a carbon source, fully mixing and stirring, putting the obtained mixed solution into a reaction kettle, and reacting in an oven at 140-160 DEG C for 8-24 hours toobtain an asymmetric bottle-shaped open carbon polymer framework (VPFs), 2, by taking VPFs as a template and uniformly growing amorphous TiO2 layers on the outer surface and the inner surface of thetemplate to obtain an intermediate of a sandwich structure and 3, calcining the intermediate to remove a bottle-shaped open carbon polymer framework, thereby obtaining the double-shell asymmetric semiconductor material, wherein the step 2 comprises the following sub-steps: dispersing VPFs in ethanol, then adding ammonia water and tetrabutyl titanate, and putting the mixture into an oil bath pot at25-80 DEG C to react for 12-30 hours to obtain the intermediate.

The invention discloses a polycarbonate and its synthesis method, rigid monomer and its preparation method. The polycarbonate contains the structural unit shown in the following formula (i): (i); The structure shown: the synthesis of the polycarbonate not only makes the synthesized polycarbonate overcome the defects of the existing polycarbonate BPA-PC, but also is biodegradable, easy to realize the diversification of structure and function, good weather resistance, and industrialized Potential, meet environmental protection requirements; especially the rigid monomer of the present invention can be prepared by using bio-based materials such as citric acid, the source of raw materials is wide, low in price, renewable, can reduce dependence on petroleum resources from the source, and is conducive to industrial applications .

The invention belongs to the technical field of inorganic wave-absorbing materials, and discloses a novel accordion-shaped NiCo2O4 wave-absorbing material and a preparation method thereof, and the wave-absorbing material has a special accordion shape and regular morphology. The specific preparation method comprises the following steps: S1, dissolving divalent nickel ion metal salt, divalent cobaltion metal salt and a complexing agent in water to obtain a nickel-cobalt ion complexing solution; S2, adding a template agent and a precipitant into the nickel-cobalt ion complexing solution, performing hydrothermal reaction, cooling, and sequentially filtering, washing and drying to obtain a precursor; and S3, calcining the precursor to obtain the wave-absorbing material. The prepared accordion-shaped NiCo2O4 wave-absorbing material has excellent wave-absorbing performance and has a good application prospect in the field of wave-absorbing materials; the preparation process is simple, raw materials are cheap and easy to obtain, requirements on production equipment are low, and industrial production is easy.

The invention relates to a method for preparing a rutile type titanium dioxide nanorod microsphere. The method comprises the following steps of (1) mixing concentrated hydrochloric acid, deionized water and non-polar solvent, adding titanium alkoxide in the mixed solvent drop by drop under a magnetic stirring condition, after the titanium alkoxide is added, continuously stirring the mixture for 30-60 minutes, so that the titanium alkoxide can be fully hydrolyzed to form layered mixed solution; and (2) transferring the mixed solution to a high pressure reaction kettle to perform solvothermal reaction, after the reaction is finished, naturally cooling the high pressure kettle by placing the reaction kettle at a room temperature, and repeatedly washing and centrifugally separating the obtained precipitate to obtain the titanium dioxide nanorod microsphere. According to the method provided by the invention, the solvothermal reaction is carried out in the interface of polar / non-polar solution by adopting the titanium alkoxide, the process route is simple and convenient, no surfactant is required; the prepared titanium dioxide nanorod microsphere is good in dispersion, high in degree of crystallinity, large in specific area, and can be used in various fields of photochemical catalyst, paints, cosmetics, new energy and the like.

The invention discloses an energy storage polymer dielectric as well as a preparation method and application thereof. The energy storage polymer dielectric comprises a polymer dielectric base film and a metal oxide thin film. The preparation method comprises the following steps of cleaning the dielectric medium film in advance, and depositing the metal oxide film on the clean polymer dielectric base film in a mixed atmosphere of Ar and O2 by taking a metal oxide as a target material and adopting magnetron sputtering. The method for preparing the energy storage polymer dielectric and improving the charging and discharging efficiency has the following advantages that the deposition rate is high, the temperature rise is small, and damage to the polymer dielectric base film is small; the bonding property of the sputtered film and the polymer dielectric medium is good; the sputtered metal oxide is high in purity, compact in film formation and good in uniformity; and compared with an original base film, the composite energy storage dielectric prepared after sputtering has the advantages that the charging and discharging efficiency is greatly improved, and the breakdown strength is also improved. The technology has good repeatability, film preparation parameters are easy to adjust, and the technology has the potential of achieving industrialization.

The invention relates to a method for processing zinc oxide ore or zinc oxide secondary resource to prepare superfine active zinc oxide. The method comprises the following steps: ammonium leaching: using zinc oxide ore containing 2-60% of zinc or complex zinc oxide secondary resource as raw material, extracting in an ammonium system coordinately, filtering to remove the residue, wherein the filtrate is applied to the next process; replacement and purification: replacing and purifying the extracted filtrate with zinc powder to eliminate impure elements, and then filtering and removing the residue, wherein the filtrate is applied to the next process; pulverization and drying: decomposing the purified filtrate through high-temperature pulverization to prepare powder A, condensing, spraying and absorbing the tail gas which is then returned to the leaching process to prepare the extracting agent; and toasting: toasting the powder A to obtain superfine active zinc oxide. The purified liquidcan be used for directly preparing even powder through efficient pulverization and drying. The technological process of the method has a circular loop so that a small amount of waste gas and waste water is discharged. The method has a rational tail gas heat exchanger. Ammonia gas is recycled in a condensing manner to prepare the leaching liquid. The rest of the ammonia gas is absorbed through spraying, thereby reducing the discharge pressure of three wastes, namely, waste gas, waste water and industrial residue.