81results about How to "Facilitate industrial scale-up" patented technology

The invention discloses controllable crystalline form titanium dioxide and a graphite alkene composite material with high efficient photoelectricity activity and a preparation method thereof. The composite material is formed by mixing TiO2 powder and graphite alkene or scattering the TiO2 powder in oxidized graphite alkene dispersing agents to perform hydro-thermal reaction. The mass ratio of TiO2 powder and graphite or graphite alkene is 1:1 to 500:1. The preparation method is simple, low in cost and environmental-friendly. The controllable crystalline form titanium dioxide and a graphite alkene composite material with high efficient photoelectricity activity can control crystalline form of the obtained TiO2 according to the ratio of alcohol and water or amount of titanium sources. When the amount is amplified, the controllable crystalline form titanium dioxide and a graphite alkene composite material with high efficient photoelectricity activity have good performances. After the graphite alkene is composed, photocatalysis is greatly improved. All obtained products are applied to fields of dye sensitization solar cells, catalysts, lithium ion cells, sensing and the like.

The invention belongs to the technical field of separation membranes, and relates to a preparation method and application of a molecular sieve / organic composite infiltration, vaporization and separation membrane. The preparation method comprises the following steps of: firstly adopting a hydrothermal method to prepare nano-level molecular sieve; putting the synthesized nano-level molecular sieve in a solvent, and dispersing the molecular sieve into uniform molecular sieve suspending liquid through ultrasound, wherein the mass fraction of the molecular sieve in the suspending liquid is 5-15%; uniformly coating the molecular sieve suspending liquid on an organic supporting body; drying the organic supporting body at the temperature of 20-60 DEG C to form a molecular sieve membrane; and repeating the coating for 2-4 times. Surface modification is performed on the organic supporting body by adopting methods such as plasma induction, silane coating and the like to modify the surface hydrophily. The method can be used for preparing a large-area molecular sieve / organic composite membrane; a prepared membrane can be assembled into a spirally coiled component; and the preparation method is beneficial for industrial magnification, and has a higher industrial application value. A better separation effect can be achieved when the prepared molecular sieve / organic composite membrane is used for the infiltration and vaporization of an organic water solution system.

The invention belongs to the technical field of biological fuel cells, and discloses a phycomycetes microbial fuel cell and a preparation method and application of the phycomycetes microbial fuel cell. The phycomycetes microbial fuel cell comprises an anode chamber, a cathode chamber, a transverse diaphragm, an anode, a cathode and an outer circuit, wherein phycomycetes, a culture solution and a carbon source are respectively installed in the anode chamber and the cathode chamber. In the operation process of the phycomycetes microbial fuel cell, operation is conducted by repeatedly converting the electrodes; in the whole operation process, with the help of synergistic effects of the phycomycetes, the effect that azo dye pollutants are degraded efficiently is achieved; the electrodes are alternately used for degrading the azo dye pollutants, therefore, the physiologically toxic effect on current-producing bacteria by the azo dye pollutants is eliminated, and continuous efficient current generation is realized; the phycomycetes is adopted as a biocatalyst for both the anode and the cathode, no metal catalyst is used for modification, no exogenous artificial mediator is added, aeration is not needed, therefore, the construction and operation cost of the microbial fuel cell is lowered, the sustainability of the microbial fuel cell is enhanced, and industrial amplified production of the microbial fuel cell can be conducted beneficially.

The invention relates to a method for preparing a high-performance Silicalite-1 molecular sieve membrane in super-dilute synthetic fluid, comprising the following steps: using low-cost silica solutionas a synthesis material to prepare a Silicalite-1 molecular sieve crystal with high activity, using the Silicalite-1 molecular sieve crystal as a seed crystal and loading the seed crystal on the surface of a support body, and preparing the high-performance Silicalite-1 molecular sieve membrane on a mullite support body using super- diliute synthetic fluid (H2O / SiO2=200-200). The invention not only effectively improves the performance of the Silicalite-1 molecular sieve membrane, but also greatly reduces the requirement of silicon source and template agent in the membrane synthetic fluid and greatly reduces the preparation cost of membrane. The membrane can be widely used for occasions of high-temperature fluid separation, gas separation, membrane reactors, and the like. The invention remarkable improves the flux penetration and the selectivity of the Silicalite-1 molecular sieve membrane, reduces the production cost and is suitable for industrial production.

The invention relates to a method of synthesizing a NaY molecular sieve and the synthesized NaY molecular sieve. The method includes following steps: a step of synthesizing a directing agent, namely a step of subjecting a silicon source and NaOH to mixing pretreatment, adding water and an aluminum source, mixing uniformly and ageing to obtain the directing agent, with the mole ratio of Na2O, Al2O3, SiO2 and H2O being 15-25:1:10-30:250-450; a step of preparing reactive gel, namely a step of adding a solid silicon source into a NaOH solution, pretreating to prepare hydrous silica gel, adding an aluminum source, mixing uniformly, adding the directing agent, stirring and mixing uniformly to obtain flow type solid-like reactive gel, with the total adding mole ratio of the Na2O, the Al2O3, the SiO2 and the H2O being 2-6:1:5.5-10.5:50-150; and a step of crystallizing, performing suction filtration and drying, namely a step of crystallizing the prepared solid-like reactive gel, filtering after crystallization is finished, washing and drying to obtain a product.

Method of spraying pyrolysis and carrier gas deoxidation is adopted to make particles of platinum and ruthenium deoxidized from chloro-platinic acid and ruthenium trichloride distribute in pores of active carbon and surface evenly. Moreover, particle diameter of platinum is in 3+ / - 0.5 Nano evenly. Features of the method are simple operation, producing Nano platinum and ruthenium / carbon electrocatalyst continuously without need of procedures of filtering, washing and drying. Performance of the electrocatalyst for oxidation catalysis of methanol is better than relevant product of platinum and ruthenium / carbon electrocatalyst produced from E-TEK Company.

The invention provides a 2-acetyl-1,10-phenanthroline amine ferrocene (II) complex represented by general formula I. The invention also provides a preparation method of the complex, and an application of the complex in ethylene oligomerization. The complex provided by the invention has a larger solubility in an organic solvent than present phenanthroline amine iron (II) complexes. The synthesis method provided by the invention has the advantages of simple technology and reduction of the catalyst preparation cost; and the generated complex has an increased conversion rate in the catalysis of an ethylene oligomerization reaction, has accepted reactive activity, and has wide industrial prospect.

The invention provides a pervaporation hybridigation composite film, which consists of a separation layer and a support layer, wherein the separation layer is a mixture of hydrophilic NaA (naphthaleneacetic acid) and PVA (polyvinyl acetate). The pervaporation hybridigation composite film has the advantages that the separation performance is good, in addition, the mechanical intensity is high, the materialization stability is good, the preparation process is simple, the large-area preparation is easy, the further amplification is favorably realized, and the industrial production is finally realized. The invention also provides a preparation method of the composite film and application to the separation of mixtures of organic matter and water.

The invention discloses a method for separating 2,4-Dichlorophenol and 2,6-Dichlorophenol, comprising the following steps: dissolving the mixture of the 2,4-Dichlorophenol and the 2,6-Dichlorophenol in an organic solvent, adding alkalic organism, stirring and reacting at the temperature of 40-80 DEG C until the reaction liquid is clear, cooling the reaction liquid after the reaction is finished, standing and precipitating crystals, filtering to obtain a filter cake A and a filtrate A, and retaining the 2,4-Dichlorophenol in the filtrate A, wherein the filter cake A is a crude product of the 2,6-Dichlorophenol; the alkalic organism is triethylene diamine, morpholine, piperazidine, ethylpiperazine or methyl piperazine; and the organic solvent is ethanol, methanol, acetone or ethyl acetate. The invention has higher separation efficiency and only need crystallization for one time; the total yield of the 2,4-Dichlorophenol is 90-95%, and the purity thereof is 96-99%; the total yield of the 2,6-Dichlorophenol is 77-89%, and the purity thereof is 90-99%; and the invention has the advantages of simple operation, good repeatability and low implementation cost, and is favor of industrialized scale-up.

The present invention relates to a preparation method of a catalyst for propylene preparation through oxidative dehydrogenation of propane, wherein the catalyst comprises an active component, an auxiliary agent, and a carrier. The preparation method comprises: preparing a catalyst precursor A, and reducing the catalyst precursor A; dissolving an auxiliary agent precursor in water, and uniformly mixing with a furfural aqueous solution; adding the obtained mixture and the catalyst precursor A to a high pressure reaction kettle, adding a solution C, and carrying out a reaction; and treating and separating the obtained solid-liquid mixture, filtering the obtained solid sample, drying, and calcining to obtain the catalyst. According to the present invention, the waste residue oil hydrotreating catalyst is completely utilized so as to save the cost; and the prepared catalyst has characteristics of high reaction activity, metal consumption reducing, and propylene selectivity improving.

The present invention relates to a preparation method of a catalyst for isobutylene preparation through oxidative dehydrogenation of isobutane, wherein the catalyst comprises a first active component, a second active component, a first auxiliary agent, a second auxiliary agent and a carrier. The preparation method comprises: preparing a catalyst precursor A, and reducing the catalyst precursor A; dissolving an auxiliary agent precursor in water, and uniformly mixing with a furfural aqueous solution; adding the obtained mixture and the catalyst precursor A to a high pressure reaction kettle, adding a solution C, and carrying out a reaction; and treating and separating the obtained solid-liquid mixture, filtering the obtained solid sample, drying, and calcining to obtain the catalyst. According to the present invention, the waste residue oil hydrotreating catalyst is completely utilized so as to save the cost; and the prepared catalyst has characteristics of high reaction activity, metal consumption reducing, and isobutylene selectivity improving.

The invention belongs to the technical field of medicines and in particular relates to a dexlansoprazole crystal form and a preparation method. A dexlansoprazole crystal with good heat stability is obtained through a method comprising the steps of culturing a crystal nucleus and slowly crystallizing. The preparation method comprises the following steps: dissolving an anhydrous dexlansoprazole crude product into acetone and de-coloring with active carbon; dropwise adding one part of isopropyl ether at 20 DEG C to 25 DEG C; stirring and culturing a crystal; culturing the crystal nucleus; then slowly dropwise adding the other part of isopropyl ether; filtering and drying to obtain a product. The product prepared by the method provided by the invention is good in heat stability and slow in degradation speed; the problems of degradation, color change and the like during a storage process of the dexlansoprazole are effectively solved; the solubility and dissolvability of the product prepared by the method are also extremely improved and the bioavailability is improved.

The invention discloses a method for separating a mixed methyl cyclohexane diacid, comprising the following steps of: (1) dissolving the mixed methyl cyclohexane diacid into a resolving solvent; adding an organic amines compound; heating and refluxing to completely react under stirring; cooling reaction liquid to 0-30 DEG C after reaction; standing for separating out crystals; filtering to obtain a filter cake A and filter liquor A, wherein a 4-methyl-1, 2-cyclohexane diacid is retained in the filter liquor A, the filter cake A is a rough crystal of a 3-methyl-1, 2-cyclohexane diacid, the organic amines compound is 2-aminopyridine, 3-aminopyridine, pyridine and 2-methylpyridine or 3-methylpyridine, and the resolving solvent is methanol and ethanol or water. Compared with the prior art, the invention has higher resolution efficiency, needs only once crystallization, can achieve the yield coefficient of each acid between 80 percent and 95 percent and the purity between 93 percent and 99 percent, has simple separation method, low implement cost and good repeatability and is beneficial to industrial scale-up.

The invention relates to a catalyst used for reducing oxynitrides in oxygen-enriched atmosphere, its preparation and its application, concretely relates to a load-type catalyst In-Fe two components catalyst, and its preparation and its application. According to the invention, In is taken as an active center, Fe is taken as a catalyst for an auxiliary agent, In and Fe are highly dispersed on sulfated zirconia (SZ), wherein the In content accounts for 4% of total mass of the catalyst, and the Fe content accounts for 3% of total mass of the catalyst. The catalyst of the invention is suitable for reaction of oxynitrides elimination by methane in the oxygen-enriched atmosphere, and NO in the oxygen-enriched atmosphere can be conversed to N2 in a wide temperature scope (350 DEG C-650 DEG C). Under the temperature of 500 DEG C, the conversion rate of NO can reach 58%. The catalyst can be used for eliminating the oxynitrides in automobile exhaust and reducing the atmospheric pollution due to the automobile exhaust.

The invention belongs to the field of preparation and application of special separation membrane materials and provides a preparation method of a hollow polyimide fiber membrane applied to sulfide adsorption. The preparation method of the polyimide hollow fiber membrane applied to the sulfide adsorption comprises the following steps: dissolving dianhydride and diamine in a polar organic solution to prepare a polyamide acid solution, subsequently adding particles with an adsorption function to obtain a spinning raw solution; spinning the raw solution into a nascent hollow fiber membrane by virtue of dry and wet spinning processes; and finally carrying out thermal imidization treatment to obtain the hollow polyimide-based fiber membrane. The preparation method of the hollow polyimide fiber membrane applied to the sulfide adsorption is simple and easy in process, simple to operate, relatively low in cost and suitable for being used in large-scale industrial production; by virtue of desulfurization experiment testing, the adsorption capacity of the membrane can reach over 13.0mgS / g.

The invention discloses a method for adsorbing and separating palladium, platinum and rhodium through a copolymer of aniline and 2-amino-6-methoxybenzoic acid (short for AN / MBA) and belongs to the technical field of platinum group metal separation. According to the method, the AN / MBA serves as an adsorption agent; the Pt and the Pd in a hydrochloric acid medium with the concentration being 0.1 mol / L are jointly adsorbed according to the solid-to-liquid ratio of 1: 100 (g / mL), and the Rh is reserved as a water phase; and then, pure water and a thiourea solution are adopted as a Pt elution agent and a Pd elution agent correspondingly, and step-by-step elution is conducted on the adsorbed Pt and Pd through a two-step elution method. By means of the method, the Pd, the Pt and the Rh can be separated; the method is simple in operation procedure, high in adsorption capacity and environmentally friendly; the recycling rate of the Pt can be 97.0% or above, the recycling rate of the Pd is higher than 96.0%, and the recycling rate of the Rh is higher than 95.0%; and the AN / MBA adsorption agent is good in stability and can be reused.

The invention provides a modified solid electrolyte as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) carrying out surface impurity removal treatment on the solid electrolyte, and fixing; (2) depositing metal lithium on the surface of the solid electrolyte to obtain the solid electrolyte deposited with the metal lithium; and (3) carrying out nitridation treatment on the solid electrolyte deposited with the metal lithium obtained in the step (2), and then carrying out isostatic pressing cold pressing treatment to obtain the modified solid electrolyte. Metal lithium is deposited on the surface of the solid electrolyte, and then nitridation treatment is carried out on the metal lithium, so that a Li3N protection layer is generated on the surface of the electrolyte in situ; li3N has high ionic conductivity and low electronic conductivity, is an ideal interface modification protective layer, and can effectively improve the stability between the electrolyte and lithium metal.

The present invention relates to a preparation method of a catalyst for ethylene preparation through oxidative dehydrogenation of ethane, wherein the catalyst comprises an active component, an auxiliary agent, and a carrier. The preparation method comprises: preparing a catalyst precursor A, and reducing the catalyst precursor A; dissolving an auxiliary agent precursor in water, and uniformly mixing with a furfural aqueous solution; adding the obtained mixture and the catalyst precursor A to a high pressure reaction kettle, adding a solution C, and carrying out a reaction; and treating and separating the obtained solid-liquid mixture, filtering the obtained solid sample, drying, and calcining to obtain the catalyst. According to the present invention, the waste residue oil hydrotreating catalyst is completely utilized so as to save the cost; and the prepared catalyst has characteristics of high reaction activity, metal consumption reducing, and ethylene selectivity improving.

The invention discloses a synthetic method of 2,2'-double diphenyl phosphine-1,1'-dinaphthalene. The method comprises the following steps: adding a lithium metal sheet, a ligand, 2,2'-diethoxy-1,1'-dinaphthalene and an ethers solvent are added in a reaction still, heating the materials to the temperature of 60-140 DEG C, reacting the materials for 6-12 hours, dropping chlorodiphenylphosphine at the temperature of 0 DEG C, heating the material to room temperature, and obtaining the product after the reaction is completed; equivalent water quenching is carried out, a product solution is concentrated and filtered, a filter cake is washed with methanol, and vacuum drying is carried out to obtain the product 2,2'-double diphenyl phosphine-1,1'-dinaphthalene (BINAP). The method has the advantages of high yield, low preparation cost, simple post-treatment, high product purity, and is suitable for process enlargement.

The present invention relates to a preparation method of a catalyst for ethylene preparation through oxidative dehydrogenation of ethane, wherein the catalyst comprises an active component, an auxiliary agent, and a carrier. The preparation method comprises: preparing a catalyst precursor A, and reducing the catalyst precursor A; dissolving an auxiliary agent precursor in water, and uniformly mixing with a furfural aqueous solution; adding the obtained mixture and the catalyst precursor A to a high pressure reaction kettle, adding a solution C, and carrying out a reaction; and treating and separating the obtained solid-liquid mixture, filtering the obtained solid sample, drying, and calcining to obtain the catalyst. According to the present invention, the waste residue oil hydrotreating catalyst is completely utilized so as to save the cost; and the prepared catalyst has characteristics of high reaction activity, metal consumption reducing, and ethylene selectivity improving.

The invention relates to a preparation method of a catalyst for alternative natural gas preparation through synthesis gas methanation. The catalyst comprises an active component, an auxiliary agent, and a carrier. The preparation method comprises: preparing a catalyst precursor A, and reducing the catalyst precursor A; dissolving an auxiliary agent precursor in water, and uniformly mixing with a furfural aqueous solution; adding the obtained mixture and the catalyst precursor A to a high pressure reaction kettle, adding a solution C, and carrying out a reaction; and treating and separating the obtained solid-liquid mixture, filtering the obtained solid sample, drying, and calcining to obtain the catalyst. According to the present invention, the waste residue oil hydrotreating catalyst is completely utilized so as to save the cost; and the catalyst has characteristics of high reaction activity, metal consumption reducing, and methane selectivity improving.

The invention discloses a tribonema culture device and method. The culture device comprises a raceway pond, circulating water wheels, a carbon supplement device and hairbrush strips; the raceway pondis of a long circular shape, one circulating water wheels is arranged at each of the two ends of the raceway pond, the hairbrush strips are liftably arranged in the raceway pond, so that tribonema adheres to the hairbrush strips to grow, the rotation speed of the circulating water wheels is 7-8r / min during cultivation, tribonema on the hairbrush strips is harvested by adopting a mode of scissor cutting after growing to the required length, and the length of remaining tribonema extending from the hairbrush strips is kept at 10mm or above after tribonema is harvested, thereby achieving the low-cost and high-density cultivation of tribonema, the produced tribonema is easy to separate and collect, the manpower is saved, the tribonema can be repeatedly cultured, the industrial amplification isfacilitated, and the method is suitable for lager-scale industrial production.

The invention discloses a periodic peristaltic agitation method from the point of bionics and according to the principle of intestinal peristalsis and periodic stimulation effect. One or more devices generating periodic peristalsis is distributed in a reactor. The internal part of the device is isolated from materials in the reactor by using elastic materials. The elastic materials are controlledto be periodically expanded and contracted through the movement of the materials in the device. When the elastic materials are expanded, the points of the elastic materials in contact with the materials move along the direction of the materials to generate normal acting force which is perpendicular to the movement direction and is applied to the materials, so materials move along the direction ofthe normal acting force under the pushing effect of the acting force; and when the elastic materials are contracted, the movement direction of the materials is reverse. Thereby, with the periodic expansion and contraction of the materials in the device, the materials in the reactor alternately do peristaltic movement under the periodic normal acting force. The method strengths heat transfer and mass transfer through the normal acting force, is suitable for reactors for chemical industry, microorganism fermentation, cell culture and the like and can be industrially scaled.

The present invention relates to a synthetic gas methanation catalyst preparation method, wherein the catalyst comprises an active component, an auxiliary agent, and a carrier. The preparation method comprises: preparing a catalyst precursor A, and reducing the catalyst precursor A; dissolving an auxiliary agent precursor in water, and uniformly mixing with a furfural aqueous solution; adding the obtained mixture and the catalyst precursor A to a high pressure reaction kettle, adding a solution C, and carrying out a reaction; and treating and separating the obtained solid-liquid mixture, filtering the obtained solid sample, drying, and calcining to obtain the catalyst. According to the present invention, the waste residue oil hydrotreating catalyst is completely utilized so as to save the cost; and the prepared catalyst has characteristics of high reaction activity, metal consumption reducing, and methane selectivity improving.

The invention discloses a TiNb alloy surface treatment method. The TiNb alloy surface treatment method comprises the steps that 1, a TiNb alloy sheet is polished to be bright to be then subjected to ultrasonic oil removal, and natural drying is carried out after rinsing; 2, silver nitrate and calcium nitrate are dissolved in a hydrogen peroxide solution to obtain a mixed solution; 3, the mixed solution is added into a hydro-thermal synthesis reaction still, and the air-dried TiNb alloy sheet is placed in the hydro-thermal synthesis reaction still to be then placed into an oven for a hydrothermal reaction; and 4, rinsing and air drying are carried out after the TiNb alloy sheet is taken out, and the TiNb alloy sheet with the surface coated with a TiO2 film is obtained. The method can be realized at a relatively low temperature, and the problem of deterioration of the mechanical properties of a titanium alloy matrix due to a conventional heat treatment method is solved. A TiO2 film material prepared by the method has the good biological activity and can rapidly induce hydroxyapatite to deposit on the surface in simulated body fluid. In addition, elementary substance Ag is uniformly distributed in the TiO2 film, and the excellent antibacterial ability is given to the film material.

The present invention relates to a preparation method of a catalyst for hydrogen preparation through reforming of methane and water vapor. The catalyst comprises an active component, an auxiliary agent, and a carrier. The preparation method comprises: preparing a catalyst precursor B, and reducing the catalyst precursor B; dissolving an auxiliary agent precursor in water, and uniformly mixing with a furfural aqueous solution; adding the obtained mixture and the catalyst precursor B to a high pressure reaction kettle, adding a solution D, and carrying out a reaction; and treating and separating the obtained solid-liquid mixture, filtering the obtained solid sample, drying, and calcining to obtain the catalyst. According to the present invention, the catalyst has characteristics of high reaction activity, metal consumption reducing, and product selectivity improving.