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58results about How to "Meet the needs of industrial mass production" patented technology
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Method for extracting essences from tea leaves
Owner:中国测试技术研究院生物研究所
Supercritical CO2 extraction process of total rhubarb anthraquinone
InactiveCN1810756AImprove efficiencyNo residueHydrocarbon from carbon oxidesQuinone separation/purificationSolution treatmentAlcohol
The present invention belongs to the field of effective Chinese medicine component extracting technology, and is especially supercritical CO2 extraction process of total rhubarb anthraquinone. Rhubarb powder through or through no acid solution treatment is soaked in alcohol or other solvent and extracted in a extracting reactor with supercritical CO2 as extractant and alcohol as entrainer and solvent at pressure of 20-60 Mpa and temperature of 30-60 deg.c for 0.5-3 hr. The extracted matter is decompression separated in a separating tank at 15-45 deg.c, and alcohol solution of total rhubarb anthraquinone is collected and decompression concentrated and dried to obtain total rhubarb anthraquinone.
Owner:THE FIFTH MEDICAL CENT OF CHINESE PLA GENERAL HOSPITAL
Equipment and method for detecting weld joints of turbine components
ActiveCN105293070AQuick checkHigh precisionOptically investigating flaws/contaminationConveyor partsLaser scanningEngineering
The invention discloses equipment and method for detecting weld joints of turbine components. A rotation driving mechanism is used for driving the turbine components to rotate at a certain speed, then a 3D laser scanning camera is used for carrying out laser scanning photographing on weld joint areas, and photos of the whole circumference of each weld joint are collected and analyzed through computer software; the 3D imaging technology is used for displaying the weld joint areas on a 2D plane, different height messages of the surfaces of scanned parts are represented through different colors, rapid detection of the appearance quality of the weld joints can be achieved, and welding surface flaws with the minimum diameter being 0.01 mm can be detected. Compared with manual visual detection, the detection method is high in precision, and detection is not prone to omission; due to the fact that the photographing speed of the camera and the processing capacity of the software are high, detection of a single part can be completed within 15 seconds, and therefore efficiency is high, and the requirement for industrial mass production can be met; the cost of the equipment and method is only one sixth of that of computed tomography (CT) equipment.
Owner:BORGWARNER AUTOMOTIVE COMPONENTS (JIANGSU) CO LTD
Preparation for LED packaged fluorescent powder dispersoid and ink-jet printing method
InactiveCN101320772ASimple structureImprove featuresOther chemical processesLuminescent compositionsOrganic solventHigh volume manufacturing
The invention discloses a preparation for the fluorescent powder dispersoid for the LED package and a ink-jet printing method, comprising the following steps: (1) preparing the resin: mixing the resin and the firming agent with a proper volume proportion; (2) diluting the resin: mixing the resin with high adhesive prepared in the step (1) to the ether or ester organic solvent with proper proportion, reducing the adhesive of the resin; (3) preparing the fluorescent powder and dispersoid: mixing the fluorescent powder with the resin diluted by the step (2) with a proper proportion , dispersing evenly to form the fluorescent powder dispersoid; (4) ink-jet printing package: loading the fluorescent powder dispersoid with the qualified adhesive prepared in the step (3) in the ink-jet printing head, achieving a resin covering, which is a fluorescent powder layer, with shape and thickness controllable resin covering on the LED chip surface via the control for the ink-jet time and the ink-jet path for the ink-jet printer. The method overcomes the defects in the current packaging technology, which can effectively enhance the integral performance for the LED devices and satisfy the requests of industrialized volume-produce.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Controllable low-strength backfill material and preparation method thereof
ActiveCN113264731ACompliance with reductionIn line with resourceSolid waste managementSoil scienceSludge
The invention provides a controllable low-strength backfill material and a preparation method thereof. The controllable low-strength backfill material is prepared by adding fly ash, cement, water, a water reducing agent and a soil dispersing agent into a basic raw material and fully and uniformly mixing the mixture, wherein the basic raw material is a mixture of crushed engineering residue soil, mixing plant waste residues and sludge. The prepared controllable low-strength backfill material comprises the following components in parts by weight: 30-45 parts of engineering residue soil, 20-30 parts of mixing plant waste residues, 10-20 parts of sludge, 5-10 parts of fly ash, 5-20 parts of cement, 10-25 parts of water, 0.1-2 parts of a water reducing agent and 0.1-2 parts of a soil dispersing agent. Through the mode, the synergistic effect of all the raw materials can be fully utilized, the utilization rate of waste resources is effectively increased, meanwhile, the backfill material which is high in flow state, self-compacting and controllable in unconfined compressive strength is prepared, and the requirements of practical application are met.
Owner:WUHAN UNIV OF TECH
Method for extracting metal from high calcium metal slag
ActiveCN102277500AEfficient extractionLow costRecycling and recovery technologiesProcess efficiency improvementSodium bicarbonateSlag
The invention relates to a method of extracting metal from high-calcium metallic slag, belongs to the field of metallurgy, and aims at providing a method of efficiently extracting metal from high-calcium metallic slag. The method of extracting the metal from the high-calcium metal slag comprises the following steps: a, material preparation: uniformly mixing high-calcium metallic slag and an additive to obtain a mixed material, wherein the metal in the high-calcium metallic slag is at least one of vanadium and chromium, the additive is sodium aluminate, or a mixture of at least one sodium carbonate, sodium bicarbonate and sodium hydroxide and at least one of aluminum hydroxide and aluminum oxide, the weight proportion of the high-calcium metallic slag calculated by the content of a metal element to the additive calculated by Na2O is 0.8-2.5; b, calcination: aerobically calcining the mixed material for 2-7 hours at the temperature of 700-1,000 DEG C; and c, leaching: leaching the calcined material to obtain a solution containing the metal element.
Owner:PANZHIHUA XINGCHEN VANADIUM & TITANIUM
Aerogel composite material with heat insulation and stealth functions and preparation method thereof
ActiveCN112661483AReduce heat radiation effectGood insulation performanceOther chemical processesFiberInsulation layer
The invention provides an aerogel composite material with a heat insulation and stealth function and a preparation method of the aerogel composite material, and belongs to the technical field of aerogel composite materials. The aerogel composite material comprises a nano-fiber aerogel matrix layer, a nano-fiber aerogel conductive layer and a nano-fiber aerogel heat insulation layer. According to the invention, under the condition of not using an adhesive, the effective fixation of aerogel particles and the tight combination between the base material and each functional layer can be realized by utilizing the unique hydrophilicity and pore structure of the nanofibers, and the heat insulation performance of the base material layer and the heat insulation layer is utilized; the electromagnetic shielding and controllable heat transmission performance of the conducting layer can achieve the heat insulation and electromagnetic infrared double-shielding synergistic function, and the invention has application prospects in the fields of national defense military industry and functional textiles.
Owner:广东广纳新材料有限公司
Method for producing amino acid chelate iron
ActiveCN101786962AReduce manufacturing costReduce process stepsOrganic compound preparationThiol preparationDicarbonateIron powder
Owner:HUNAN JIUDING TECH GROUP
Colorful graphene quantum dot coating and preparation method and application thereof
ActiveCN107266988AGood antibacterial propertiesRelieve visual aesthetic fatigueAntifouling/underwater paintsLuminescent paintsIonGraphene quantum dot
The invention provides a colorful graphene quantum dot coating and a preparation method and application thereof, and relates to the technical field of coatings. The colorful graphene quantum dot coating is mainly prepared from the following raw materials in parts by mass: 5-40 parts of graphene quantum dots, 3-10 parts of pigment, 90-120 parts of matrix resin, 330-370 parts of deionized water and 450-550 parts of filler; and the sum of the raw materials is 1,000 parts. The technical problem that an existing coating is single in color, is lack of colorfulness, and easily causes visual aesthetic fatigue of people is solved. The antibacterial performance is good, colors with a wide chromatography range can be shown, therefore, visual aesthetic fatigue of people is relieved effectively, and demands of people to diversity of colors of coatings are met.
Owner:SUZHOU UNIV
A kind of preparation method of gallium oxide epitaxial film and gallium oxide epitaxial film
ActiveCN103489967BImprove performanceAvoid pollutionSemiconductor/solid-state device manufacturingSemiconductor devicesSemiconductor materialsHydrogen
The invention relates to the field of semiconductor material preparation, and discloses a method for preparing a gallium oxide epitaxial film and the gallium oxide epitaxial film. Trimethyl gallium or triethyl gallium is used as a gallium source, gas state oxygen-containing substances are used as an oxygen source, a hydrogenous compound is used as auxiliary reaction gas, and then the gallium oxide epitaxial film is prepared. According to the method for preparing the gallium oxide epitaxial film and the gallium oxide epitaxial film, an MOCVD system is used, and the gallium oxide epitaxial film is prepared by adjusting growth parameters, adding auxiliary reactants and optimizing a subsequent processing method. By the adoption of the method, an organic source can be fully reacted, reaction products can be completely separated, and pollution on the surface of the gallium oxide film caused by secondary deposition of carbon and the relevant compounds of carbon is avoided. The gallium oxide epitaxial film prepared from the method is good in performance and meets the requirement for industrialization mass production in the future.
Owner:DALIAN UNIV OF TECH
Preparation method of rose geranium essential oil microcapsules with good oxidation resistance and antibacterial properties
PendingCN113712144ASolve the problem of insoluble in waterNo chemical changes involvedFood ingredient as antioxidantFood preservationBiotechnologyPelargonium roseum
The invention discloses a preparation method of rose geranium essential oil microcapsules with good oxidation resistance and antibacterial properties, and belongs to the technical field of food processing. The preparation method comprises the following steps of using protein and polysaccharide as wall materials, and using rose geranium essential oil as a core material; performing high-speed shearing and high-pressure homogenizing so that the wall materials and the core material are jointly emulsified, adjusting pH, adding a curing agent, and performing a complex coacervation method so as to obtain turbid liquid of the rose geranium essential oil microcapsules; and then performing freeze drying so as to obtain the rose geranium essential oil microcapsules. The microcapsules prepared by the preparation method disclosed by the invention can load and protect the rose geranium essential oil, the stability of the rose geranium essential oil is improved, the oxidation resistance of the rose geranium essential oil is well exerted, and the rose geranium essential oil microcapsules have the effect of restraining bacteria; and besides, the preparation method disclosed by the invention is simple in technology, mild in conditions, low in cost, safe and harmless, and is suitable for various fields of foods, health-care products, cosmetics and the like.
Owner:NORTHWEST A & F UNIV
Method for synthesizing diphenyl carbonate from dimethyl carbonate
ActiveCN102675115AImprove reaction efficiencyMild reaction conditionsPreparation from organic carbonatesMetal chlorideMethyl benzene
The invention relates to a method for synthesizing diphenyl carbonate from phenol and dimethyl carbonate. The method comprises the following process steps of: synthesizing a phenoxy metal compound by using the phenol as a raw material with an organic metal compound (RO)XM or absolute metal chloride; reacting with the dimethyl carbonate to synthesize methyl phenyl carbonate and a methoxy metal compound; and finally performing disproportionation on the methyl phenyl carbonate to synthesize the diphenyl carbonate. In the synthesis process, the methoxy metal compound produced by the reaction can be continuously subjected to synthesis with the phenol to obtain the phenoxy metal compound and recycled. The method for synthesizing the diphenyl carbonate has the advantages of simple process, mild reaction conditions and capability of meeting requirements of industrial large-scale production.
Owner:SHANGHAI HUAYI ENERGY CHEM
Radon-adsorbing and anti-radiation coating as well as preparation method and application thereof
ActiveCN107353720AImprove adsorption capacityReduce radon levelsAntifouling/underwater paintsPaints with biocidesPhysical well beingHuman health
The invention provides a radon-adsorbing and anti-radiation coating as well as a preparation method and an application thereof and relates to the technical field of coatings. The radon-adsorbing and anti-radiation coating is mainly prepared from raw materials in parts by mass as follows: 5-50 parts of graphene-polyacrylic acid, 90-120 parts of matrix resin, 330-370 parts of deionized water and 450-550 parts of pigment and filler, and the sum of the raw materials is 1000 parts, wherein graphene-polyacrylic acid is prepared from modified graphene and polyacrylic acid through urethanation. The technical problem of big potential safety hazard caused by high content of radioactive radon gas indoors due to the fact that radon released from building materials and building foundation soil is accumulated indoors easily is solved, precipitation of gas in walls and formations can be hindered, radon in air can also be efficiently adsorbed, so that dwelling environment is effectively improved, harm of radon to human health is reduced, and body health of people is guaranteed.
Owner:SUZHOU UNIV
Preparation method of flexible conductive polyurethane composite film
The invention discloses a preparation method of a flexible conductive polyurethane composite film, and belongs to the technical field of composite materials. The method comprises the steps of solvent preparation, membrane casting solution preparation, coagulating bath preparation, membrane casting solution blade coating, phase inversion forming, drying treatment and the like. A ternary mixed solvent prepared by mixing a poor solvent of polyurethane, N,N-dimethylformamide, and a solvent of which the polarity is lower than that of N,N-dimethylformamide is employed, so that the unmodified nano carbon material can be better and uniformly dispersed in the polyurethane solution, original characteristics of the nano carbon material are retained, the polyurethane composite film is endowed with good conductivity, the interfacial compatibility of polyurethane and the nano carbon material is improved, and the mechanical property of the composite film is improved. The prepared flexible conductive polyurethane composite film has good mechanical property and conductive property. The preparation process is simple, can meet the requirements of industrial large-scale production, and has a wide application prospect in the field of flexible conductive materials.
Owner:WUHAN TEXTILE UNIV
Multi-structure synergistically-enhanced thermal insulation aerogel/polymer composite material and preparation method thereof
ActiveCN112726019AIncreased thermal insulationPrevent falling offUltrasonic/sonic fibre treatmentConjugated synthetic polymer artificial filamentsThermal insulationWoven fabric
The invention provides a multi-structure synergistically-enhanced thermal insulation aerogel / polymer composite material and a preparation method thereof. Aerogel / polymer composite fibers with skin-core structures are prepared by taking a mixture of a first thermoplastic polymer and aerogel powder as skin layers and taking a second thermoplastic polymer as core layers; and the aerogel / polymer composite fibers with the skin-core structures are subjected to plasma treatment and then processed into non-woven fabric, and thus the multi-structure synergistically-enhanced thermal insulation aerogel / polymer composite material. By means of the mode, the synergistic effect of the skin layers and the core layers in the aerogel / polymer composite fibers with the skin-core structures can be utilized, so that the multi-structure synergistically-enhanced thermal insulation aerogel / polymer composite material has high mechanical strength and good heat preservation and insulation performance; and the synergistic effect of the skin-core structures, highly rough surface structures and highly fluffy stacked structures in the aerogel / polymer composite material can be utilized to achieve excellent heat preservation and heat insulation effects, thereby satisfying the requirements of practical application.
Owner:佛山市维晨科技有限公司
Clean extraction process of chondroitin and high-quality type II collagen coproduction using pig and cattle nasal bones
ActiveCN110846368AHigh initial purityAchieve separationConnective tissue peptidesPeptide preparation methodsBiotechnologyHydroxyproline
The invention discloses a novel extraction process and particularly relates to a clean extraction process of chondroitin and high-quality type II collagen coproduction using pig and cattle nasal bones. The clean extraction process includes a chondroitin production process route and a high-quality type II collagen production process route. The clean extraction process has the advantages that the chondroitin is extracted through long-time extraction at room temperature and under a weak alkali condition, the extracted chondroitin is quite high in purity, oxidation decoloring using hydrogen peroxide in the extraction process is not needed, the chondroitin is extremely few in non-chondroitin impurities, the non-specificity disaccharide content of the chondroitin is not more than 4%, the yield of the chondroitin reaches 30-35%, and the requirements of large-scale industrial production are satisfied; the protein content of the type II collagen powder is not less than 90%, the ash content of the type II collagen powder is not more than 0.5%, the sodium residue of the type II collagen powder is not more than 100mg / kg, the hydroxyproline content of the type II collagen powder is not less than 9%, the type II collagen powder satisfies sanitation requirements, bright white in color, free of peculiar smell and meets food application standards, and product value is achieved to the maximum extent.
Owner:MEITEK TECH QINGDAO
Method of extracting coumarin by supercritical carbon dioxide
InactiveCN101012212AImprove efficiencyNo residueOrganic chemistryBulk chemical productionSolventAutoclave
The invention discloses an extracting method of coumarins from traditional Chinese medicine through hypercritical carbon oxide technique, which comprises the following steps: processing capillary Artemisia drug; placing in the extracting autoclave based on hypercritical carbon oxide as extracting solvent; extracting at 30-60 deg.c under 10-60Mpa for 0.5-3h; decompressing to separate in the separating autoclave at 15-45 deg.c; collecting the extract of capillary Artemisia coumarins.
Owner:THE FIFTH MEDICAL CENT OF CHINESE PLA GENERAL HOSPITAL
High-precision small-piece collaging system for preparing monolithic integrated capacitive touch screen
ActiveCN103677474AReduce pollutionAccurate coincidenceInput/output processes for data processingCooking & bakingPollution
The invention discloses a high-precision small-piece collaging system for preparing a monolithic integrated capacitive touch screen. The high-precision small-piece collaging system for preparing the monolithic integrated capacitive touch screen comprises a bearing motherboard, a visual identification system, a mask system, a typesetting system, a detecting system, a sorting system and a leveling and baking system. The high-precision small-piece collaging system can ensure that a small-piece glass fit position accurately overlaps with a mask shape. In the process of manufacturing small-piece glass, reinforcement stress is not restricted any longer, the developing and the manufacturing of novel products can be conducted, less environment pollution exists, the requirement of industrialized mass production can be met, and production efficiency is greatly improved.
Owner:HANGZHOU XINNUO MICROELECTRONICS CO LTD
Preparation method of high-strength and high-toughness bionic fiber
ActiveCN114703561AHigh strengthImprove toughnessConjugated cellulose/protein artificial filamentsArtificial filament heat treatmentFiberPolymer science
The invention provides a preparation method of a high-strength and high-toughness bionic fiber. According to the method, a wet spinning forming process principle is utilized, polyurethane and nano-cellulose whiskers are adopted as main raw materials, the nano-cellulose whiskers are subjected to surface modification, then the modified nano-cellulose whiskers and polyurethane are prepared into a membrane casting solution, the obtained composite membrane is dissolved in a ternary solvent after membrane forming, and the composite membrane is prepared. The preparation method comprises the following steps: preparing nascent fibers by adopting a wet spinning process, then carrying out drafting and spiral orientation treatment in a thermal environment, and carrying out heating shaping, winding and drying treatment to obtain the high-strength and high-toughness bionic fibers. Through the mode, the polyurethane molecular chain can be folded and wound on the nano-cellulose whisker to form a multi-stage interface structure similar to natural spider silk and silk, and the interface compatibility and the acting force between the polyurethane and the nano-cellulose whisker are effectively improved; therefore, the bionic fiber which is compact in structure and has high strength and high toughness is prepared.
Owner:WUHAN TEXTILE UNIV
Attached bioprosthetic valve and preparation method thereof
ActiveCN113198045APromote endothelializationImprove mechanical propertiesHeart valvesTissue regenerationYarnBiocompatibility
The invention provides an attached bioprosthetic valve and a preparation method thereof. The animal valve subjected to decellularization treatment is cut, the two animal valve slices are attached to the two sides of the drug controlled release fabric adsorbed with the vascular endothelial growth factors respectively, the drug controlled release fabric is clamped between the two animal valve slices, and the biological valve stent is formed under the bonding effect of the medical biological glue, and sewing is performed by using polylactic acid yarns to prepare the attached bioprosthetic valve. By means of the mode, the synergistic effect between a traditional suture technology and a cell growth induction technology can be fully exerted, the mechanical property of the heart valve is enhanced through yarn suture, meanwhile, cells are induced by growth factors to grow towards the interior of the valve along the yarn, endothelialization of the biological valve is promoted, therefore, the attaching type bioprosthetic valve with high mechanical property and high biocompatibility is obtained at the same time. The preparation method provided by the invention is simple in process and can meet the requirements of industrial large-scale production.
Owner:WUHAN TEXTILE UNIV
Preparation method of azilsartan
InactiveCN108658961AAvoid it happening againShort process routeOrganic chemistryHydroxylamineHydroxylamine Hydrochloride
The invention belongs to the field of drug synthesis. A preparation method of azilsartan is characterized by comprising the following steps that 1) a compound 5 reacts with hydroxylamine hydrochlorideunder the alkaline condition to generate a compound 6 by heating reaction; 2) the compound 6 reacts under the action of carbonyl diimidazole under triethylene diamine to generate a compound 4; 3) thecompound 4 generates hydrolysis reaction under the alkaline condition to obtain a crude azilsartan product; 4) the crude azilsartan product is refined to obtain the azilsartan. The preparation methodof the azilsartan has the advantages of short reaction time, high product purity and high yield, and is suitable for large-scale industrial production.
Owner:BEIJING XINLINGXIAN MEDICAL TECH DEV CO LTD
Arc ion plating device
PendingCN109576652AReduce the temperatureReduces the generation of macroscopic particlesVacuum evaporation coatingSputtering coatingPhysicsBatch production
The invention discloses an arc ion plating device. The device comprises a vacuum chamber, a hall ion source and arc ion sources; the arc ion sources excite a target material adopting a pulse dischargemode, the deposition temperature is low, the surface smoothness of a coating is good, and an elastomer product can be plated under a low-temperature condition. The device comprises two or more arc ion sources, and each ion source is installed at a certain inclination angle with the side wall of the vacuum chamber, the plating uniformity and the plating speed can be guaranteed, and the requirements of industrial batch production can be met. The device has the advantages of being low in plating temperature, good in plating uniformity, high in plating speed and the like.
Owner:JIANGSU XCMG CONSTR MASCH RES INST LTD
Radon-absorbing anti-radiation coating and its preparation method and application
ActiveCN107353720BImprove adsorption capacityReduce radon levelsAntifouling/underwater paintsPaints with biocidesPhysical well beingALLYL SUCROSE
Owner:SUZHOU UNIV
Hydrophilic polyurethane foam dressing and preparation method thereof
ActiveCN111748071AGood biocompatibilityGood bioadhesionAbsorbent padsBandagesPolymer scienceVegetable oil
The invention discloses a hydrophilic polyurethane foam dressing and a preparation method thereof. Vegetable oil-based polyol and polyethylene glycol are mixed in proportion, filler and auxiliaries are added, polyisocyanate is added for reaction after the filler and the auxiliaries are evenly mixed, and the hydrophilic polyurethane foam dressing which is good in biocompatibility, high in biological adhesion, safe, non-toxic, high in hydrophilicity and capable of preserving moisture for a long time is prepared. Through the mode, the polyurethane foam dressing prepared by mixing the vegetable oil-based polyol and the polyethylene glycol can reach proper hydrophilicity under the condition of low cost; the excellent hydrophilicity and the combination effect of the filler can be fully utilized,the loss of the filler is avoided while the mechanical property of the polyurethane foam dressing is improved, and the long-acting moisturizing effect is achieved. Meanwhile, the whole preparation process of the hydrophilic polyurethane foam dressing is simple in process and low in cost, and can meet the requirements of industrial large-scale production.
Owner:WUHAN RUIFA MEDICAL DEVICES CO LTD
Microwave method for large-scale and rapid improvement of hydrophilicity of carbon base and application thereof
InactiveCN109806824AFast preparationShorten the timeEnergy based chemical/physical/physico-chemical processesCarbon fibersMicrowave method
The invention discloses a microwave method for large-scale and rapid improvement of hydrophilicity of a carbon base, and belongs to the technical field of functional materials. The carbon base withoutany treatment such as carbon cloth and carbon fibre is put into a microwave reactor full of air or N2 to be subjected to microwave reaction for 5 to 600 s, or the carbon base the surface of which isdripped with water or soaked wet with organic solvent is put into microwave to be subjected to microwave reaction for 5 to 600 s, the hydrophilicity of the carbon base is greatly improved. The experiment that a microwave method is adopted to improve the hydrophilicity of the carbon base has the characteristics that the required time is short, that reaction temperature reaches as high as thousandsof Celsius degrees, that the equipment cost is low, that the experimental steps are simple, that no harm is created to the environment and the like. Requirements for preparing hydrophilic experiment of carbon cloth on a large scale in industry are met.
Owner:NANJING UNIV OF TECH
Preparation method of amiodarone hydrochloride intermittent
InactiveCN109053652AMild conditionsHigh reaction conversion rateOrganic chemistryMethyl groupAmiodarone Hydrochloride
The invention belongs to the field of medicine synthesis, and relates to a preparation method of an amiodarone hydrochloride intermittent. The method is characterized by including the following stepsthat 1, under an alkaline condition, in the presence of a phase transfer catalyst, a compound 1 and a compound 2 are subjected to nucleophilic substitution reaction to obtain a compound 3; 2, under analkaline condition, the compound 3 is hydrolyzed to generate a compound 4; 3, the compound 4 is subjected to intramolecular aldol condensation, decarboxylation and dehydration to obtain a compound 5;4, a compound 6 and thionyl chloride are subjected to heating reaction to obtain a compound 7; 5, under the presence of lewis acid, the compound 5 and the compound 7 are subjected to friede-crafts acylation reaction to obtain a compound 8; 6, under the presence of lewis acid, the compound 8 is subjected to demethylation to generate a compound 9, namely the amiodarone hydrochloride intermittent 2-butyl-3-(4-hydroxybenzoyl)benzofuran. The preparation method of the amiodarone hydrochloride intermittent has the advantages of being short in reaction time, high in product purity and high in yield,and the amiodarone hydrochloride intermittent is suitable for large-scale industrial production.
Owner:BEIJING SHENLANHAI BIO PHARM TECH
Abrasive flow finishing equipment for batch machining of gear parts
ActiveCN113070806ARealize industrial productionIncrease productivityEdge grinding machinesGrinding carriagesGear wheelMachining
The invention discloses abrasive flow finishing equipment for mass production. A rotary frame and a main power source are arranged on the upper portion of a rack; the main power source can drive a rotary main shaft on the lower side of a rotary mechanism through a main driving device to drive the rotary mechanism to do circular motion at a certain rotating speed; a plurality of sliding rails can be arranged on the rotary mechanism; each sliding rail can be provided with an abrasive flow finishing unit; stop platforms are arranged below the sliding rails; the finishing units are fixed through locking mechanisms after being installed; an abrasive material bin is used for storing a proper amount of abrasive materials; and the abrasive materials stored in the abrasive material bin are conveyed into each finishing unit through abrasive material conveying mechanisms for part finishing machining. Industrial production of abrasive flow finishing machining can be achieved, the finishing units work independently and do not influence one another, the whole equipment can work continuously, and therefore compared with an intermittent machining device, the production efficiency is high, and the industrial large-batch production requirement can be met.
Owner:SHAANXI FAST GEAR CO
Method for producing amino acid chelate iron
ActiveCN101786962BReduce manufacturing costReduce process stepsOrganic compound preparationThiol preparationIron powderStrong acids
Owner:HUNAN JIUDING TECH GROUP
Method for extracting vanadium from high-calcium vanadium-containing materials
ActiveCN104342567BSolve the technical problems that are difficult to recover by acid leachingReduce manufacturing costProcess efficiency improvementHigh calciumReducing agent
Owner:攀枝花七星光电科技有限公司
Preparation for LED packaged fluorescent powder dispersoid and ink-jet printing method
InactiveCN101320772BSimple structureImprove featuresOther chemical processesLuminescent compositionsOrganic solventHigh volume manufacturing
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
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