40results about How to "Suitable for industrial scale applications" patented technology

The invention relates to a sandwich structure for enhancing luminous intensity of photoluminescence of luminous film and a preparation method of the sandwich structure. The sandwich structure is a sandwich structure of substrate-luminous film-monolayer dense-paving sphere array formed by densely paving a micrometern transparent dielectric sphere monolayer on the luminous film; the used micrometer transparent dielectric spheres have relatively high transmissivity to wave lengths of exciting light and fluorescent light in the photoluminescence; the used fluorescence enhancing medium-micrometer transparent dielectric spheres are low in price and are suitable for industrial large-scale application. The used micrometer transparent dielectric spheres are not oxidized under air environment and can be used for steadily enhancing the luminous intensity of the fluorescence of the luminous film for a long time; the used micrometer transparent dielectric spheres have no requirements on the luminous film; the substrate can be nonmetal or metal, and due to substrate, the application range of the luminescence enhancement technology of the photoluminescence of the luminous film is effectively extended.

The invention discloses an auxiliary device for high-temperature alloy machining and belongs to the technical field of metal cutting machining. The auxiliary device for high-temperature alloy machining is used for achieving cutting machining conducted on a high-hardness high-temperature alloy workpiece and comprises a plasma heating unit, a clamping unit, a cutting force measurement unit and a temperature measuring unit, wherein the plasma heating unit comprises a plasma transmitting spray head, is used for heating and softening the position to be cut of the high-temperature alloy workpiece and can perform cutting machining. The clamping unit comprises multiple clamping plates, wherein the clamping plates are oppositely installed so as to clamping the plasma transmitting spray head. A force measurement instrument in the temperature measuring unit is used for being in contact with the high-temperature alloy workpiece so as to measure cutting force borne by the high-temperature alloy workpiece in cutting. An infrared camera of the temperature measuring unit is used for measuring the temperature of the position to be cut of the high-temperature alloy workpiece heated by the plasma transmitting spray head. The auxiliary device for high-temperature alloy machining is low in price and energy consumption and capable of achieving accurate controllability of cutting machining process.

The invention discloses a nano calcium carbonate catalyst wrapped by Ag-loaded titanium dioxide nanoparticles as well as a preparation method and application of the nano calcium carbonate catalyst. The surfaces of spindle-shaped nano calcium carbonate particles are wrapped by Ag-loaded titanium dioxide nanoparticles. The catalyst can be added into paper-making process reconstituted tobaccos so as to be added into cigarettes containing the reconstituted tobaccos, so that the smoke reaction is catalyzed in cigarette igniting and smoking processes and the carbonyl compound content of the smoke can be reduced. According to the invention, the preparation process is simple, convenient and economical, and the prepared catalyst has a remarkable particle catalysis effect, is low in cost and is suitable for industrial application.

The invention belongs to the field of chemical engineering, and relates to a method for using hydrocyanic acid mixed gas to prepare 2-hydroxy-4-methylthio-butyronitrile and a continuous production method for the 2-hydroxy-4-methylthio-butyronitrile. The method comprises the following steps: preparing hydrocyanic acid mixed gas I by using methane, ammonia gas and oxygen as raw materials and adopting the synthetic principle of an Andrussow method; deaminizing the hydrocyanic acid mixed gas I to obtain hydrocyanic acid mixed gas II; enabling the hydrocyanic acid mixed gas II to fully react with methylthiopropanal under the catalysis of alkali, so as to obtain the 2-hydroxy-4-methylthio-butyronitrile. According to the invention, the method adopts raw materials not purified, the raw materials are low in cost and easy to obtain, and the prepared 2-hydroxy-4-methylthio-butyronitrile is high in yield and high in purity; the obtained 2-hydroxy-4-methylthio-butyronitrile reaction system not subjected to purification and separation is stable in property, and can be stored for a long time and used for the production of down-stream products conveniently. The continuous production method for the 2-hydroxy-4-methylthio-butyronitrile particularly adopts a multi-level series tank reactor, so that the continuous production method can realize industrial large-scale continuous production, is low in production cost, efficient, environment-friendly and suitable for industrial popularization and application.

The invention relates to an impinging stream reaction and separation integration device and an impinging stream reaction and separation integration method for a liquid-liquid reaction system. The impinging stream reaction and separation integration device comprises a device barrel body, three storage tanks and three booster pumps, wherein the device barrel body is divided into a reaction cavity and a separation cavity; the reaction cavity is internally provided with three main guide cylinders, two of the main guide cylinders are opposite to each other along a horizontal axis, and the circulating main flow guide cylinder is arranged at the upper side of the middle of the device barrel body, so that circulating repeated impinging of two-phase liquids is realized; end openings of the three guide cylinders are provided with guide vanes; the separation cavity is internally provided with a corrugated plate; the middle lower part of the device barrel body is provided with a sampling opening; the separation cavity is internally provided with two discharging holes. The impinging stream reaction and separation integration device has the beneficial effects that movable components such as a propeller are not arranged in the device barrel body, and the guide vanes are adopted to replace a propeller-type structure, so that the problems such as vibration caused by the propeller-type structure are reduced; the circulating guide cylinder is arranged in the reaction cavity, so that circulating repeated impinging of the two-phase liquids is realized, the mixing process of two liquids is strengthened, and the process flow is reduced.

The invention discloses a flower type boiling heat transfer structure and a preparation method thereof. The surface of the structure is covered with a micro-nano porous membrane, the micro-nano porousmembrane takes copper micron cones as a main body, and the surfaces of the copper micron cones are coated with nano cones to form graded composite cone structures; and unique micro-nano porous structures are formed among the composite cone structures. Compared with a single copper micron cone structure, the flower type boiling heat transfer structure of the invention has a larger heat exchange area, far more nucleation sites, more excellent boiling heat transfer performance, a higher boiling heat transfer coefficient and higher critical heat flux density, and the degree of superheat corresponding to a nucleate boiling starting point is lower. The electrolyte required for preparing the flower type boiling heat transfer structure is simple in formula, economical and easy to obtain, wide inthe selectable range of an electroplating mode, and suitable for industrial large-scale application.

The invention discloses a preparation method of ursodesoxycholic acid. The preparation method is characterized by comprising the following preparation steps: (1) carrying out an oxidation reaction on cholic acid under the action of 7alpha-hydroxysteroid dehydrogenase, 12alpha-hydroxysteroid dehydrogenase, coenzyme, a coenzyme regeneration system and an aqueous solution to obtain 7,12keto-lithocholic acid; (2) carrying out a reduction reaction on the 7,12 keto-lithocholic acid under the action of 7beta-hydroxysteroid dehydrogenase, coenzyme and the coenzyme regeneration system to obtain 12keto-ursodesoxycholic acid; and (3) removing a 12-site carbonyl group of the 12 keto-ursodesoxycholic acid to obtain the ursodesoxycholic acid. The process for preparing ursodesoxycholic acid takes cholic acid as a starting raw material, is sufficient in raw material supply, low in cost, suitable for industrial large-scale application, short in production flow, mild and safe in technological process and few in side reaction.

The invention discloses a nano calcium carbonate catalyst wrapped by Ag-loaded titanium dioxide nanoparticles as well as a preparation method and application of the nano calcium carbonate catalyst. The surfaces of spindle-shaped nano calcium carbonate particles are wrapped by Ag-loaded titanium dioxide nanoparticles. The catalyst can be added into paper-making process reconstituted tobaccos so as to be added into cigarettes containing the reconstituted tobaccos, so that the smoke reaction is catalyzed in cigarette igniting and smoking processes and the carbonyl compound content of the smoke can be reduced. According to the invention, the preparation process is simple, convenient and economical, and the prepared catalyst has a remarkable particle catalysis effect, is low in cost and is suitable for industrial application.

The invention discloses a method for peeling pepper by using ethylene, relating to the field of pepper processing. The pepper particles are complete in grain, high in peeling rate, bright in color, low in water consumption in the peeling process and free of pollution; odor generated by white pepper and the ambient environment through an impregnation method and a liquid fermentation method is avoided; the sensory quality and quality of a pepper product are improved; meanwhile, environment pollution is reduced; in addition, the method is short in time consumption, high in efficiency, easy to operate and high in peeling rate higher than 98%. The breakage rate of the obtained pepper is remarkably reduced, and the peeled pepper contains a great number of effective components, so that the method is suitable for large-scale industrial application.

The invention discloses a preparation method of oxymethylisourea acetate. The method comprises the following steps: 1) the methanol solution of oxymethylisourea hydrogen sulfate is reacted with sodium acetate and sodium hydroxide at a temperature of 10°C to 65°C, and the reaction time is 2 hours to 10 hours, and oxymethylisourea hydrogen sulfate The molar ratio of salt to sodium hydroxide and methanol is 1:1:6~10, and the molar ratio of oxymethylisourea bisulfate to sodium acetate and sodium hydroxide is 1:0.8~1.5:0.8~1.50; 2) The precipitated sodium sulfate is removed from the reaction mixture at the temperature of step 1); 3) the reaction solution is concentrated by distilling methanol at a temperature of 40°C to 80°C; 4) the oxymethylisourea acetate concentrate is cooled, Crystallization, centrifugation can be. The synthesized product of the invention has high purity, high yield and simple process, and the method is particularly suitable for industrial scale application.

The invention relates to the field of a membrane technology and membrane surface modification and concretely relates to an anti-pollution modification method of a polypropylene hollow fiber membrane module. The method comprises the following steps of selecting a compound with strong hydrophily and multiple active groups as a modifier, adsorbing the modifier by the surface of the polypropylene hollow fiber membrane module in a dynamic cycle way, and under coordination complexation of the active groups in the modifier molecule and an inorganic bacteriostatic agent, fixing the modifier to the polypropylene hollow fiber membrane module so that the polypropylene hollow fiber membrane module with hydrophily and antibacterial properties is prepared. Through control of a flowing direction of a cross-linking agent solution, a modification compound solution and a metal ion soluble salt solution, the method realizes hydrophilic and antibacterial modification of an inner surface, an outer surface and membrane apertures of the polypropylene hollow fiber membrane module, greatly improves work efficiency and treatment effects, needs simple requirement and is suitable for industrial application.

The invention discloses an auxiliary device for high-temperature alloy machining and belongs to the technical field of metal cutting machining. The auxiliary device for high-temperature alloy machining is used for achieving cutting machining conducted on a high-hardness high-temperature alloy workpiece and comprises a plasma heating unit, a clamping unit, a cutting force measurement unit and a temperature measuring unit, wherein the plasma heating unit comprises a plasma transmitting spray head, is used for heating and softening the position to be cut of the high-temperature alloy workpiece and can perform cutting machining. The clamping unit comprises multiple clamping plates, wherein the clamping plates are oppositely installed so as to clamping the plasma transmitting spray head. A force measurement instrument in the temperature measuring unit is used for being in contact with the high-temperature alloy workpiece so as to measure cutting force borne by the high-temperature alloy workpiece in cutting. An infrared camera of the temperature measuring unit is used for measuring the temperature of the position to be cut of the high-temperature alloy workpiece heated by the plasma transmitting spray head. The auxiliary device for high-temperature alloy machining is low in price and energy consumption and capable of achieving accurate controllability of cutting machining process.

The invention relates to a device for increasing a recovery rate of sulfur and a recovery method of sulfur. The device comprises a sulfur production process tail gas recovery device, a shift gas recovery device and a circulating system. With the adoption of the recovery device and method, the sulfur recovery rate can be close to 100%, and further, the device and the method have the advantages of simple process and low investment and operating cost, and are suitable for large-scale industrial application.

The invention relates to a method for preparing 5-(2-methylmercapto-ethyl)-hydantoin by utilizing crude hydrocyanic acid gas and relates to the field of chemical industry. The method disclosed by the invention comprises the following steps of: completely reacting hydrocyanic acid mixed gas made by adopting an Ann method with methylmercapto propionaldehyde to obtain a 2-hydroxyl-4-methylmercapto-butyronitrile reaction system under the catalytic action of organic alkali; and sufficiently reacting the 2-hydroxyl-4-methylmercapto-butyronitrile reaction system with ammonium bicarbonate in a water medium to obtain 5-(2-methylmercapto-ethyl)-hydantoin. Due to adoption of raw materials which are not rectified or purified, the method disclosed by the invention is short in production time, high in production efficiency and low in production cost; the prepared 2-hydroxyl-4-methylmercapto-butyronitrile reaction system is steady in property and can be stored for a long time; and 5-(2-methylmercapto-ethyl)-hydantoin with high purity and high yield can be obtained through simple separation and purification operations under the synergistic effect of other substances in reaction liquid.

The invention discloses a preparation method for a transparent dielectric microsphere flexible film used for strengthening raman scattering spectral intensity, and belongs to the field of spectrum detection. The preparation method comprises the following steps: preparing a transparent dielectric microsphere turbid liquid; dispensing the dielectric microsphere turbid liquid on an inclined glass sheet surface; after a solvent in the turbid liquid on the inclined glass sheet is evaporated, forming a microsphere single-layer densely paved array structure; preparing a polydimethylsiloxane (PDMS) solution; dispensing the uniformly mixed PDMS solution on the glass sheet deposited with the microsphere array, and thinning by equalizing glue; heating the glass sheet covered with the microsphere array and a PDMS liquid-state thin layer and cooling the glass sheet to the room temperature, embedding the microsphere array into a PDMS film and curing the PDMS film; and separating the microsphere filmfrom the glass sheet. The flexible film can be adhered to the surfaces of various samples, so that raman scattering strengthening on a semiconductor material, one-dimensional and two-dimensional nanomaterials and a three-dimensional structural surface material can be realized.

The invention discloses a squeeze casting method and equipment based on the coupling of power ultrasound and pressure. The method is to simultaneously apply power ultrasound and pressure to a metal melt, and change the physical structure of the metal melt through the synergistic coupling of pressure and power ultrasound. Then, while cooling the mold cavity, the corresponding experimental data is collected and processed through data acquisition; its equipment includes mold cavity, heat preservation heater, punch, power ultrasonic generator, mold cooling system and data collector, mold The wall of the mold cavity is equipped with a heat preservation heater, the punch is set above the mold cavity, the power ultrasonic generator is set on the side of the mold cavity, the mold cavity is equipped with a mold cooling system, the data collector and the mold mold The outer side of the lumen wall is connected. The invention has a simple principle, can improve the efficiency and speed of squeeze casting, effectively improve the microstructure and performance of the metal melt, and also builds a platform for subsequent experiments, and the real-time measured data can help in-depth experimental analysis.