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30results about How to "Suitable for industrial application promotion" patented technology

Negative poisson ratio structural component based on inner sunken hexagonal unit

PendingCN108082102AGood resilience toughness and fracture resistanceHigh strengthBumpersSustainable transportationSupporting cellElastic modulus
The invention discloses a negative poisson ratio structural component based on an inner sunken hexagonal multi-cell unit. The negative poisson ratio structural component comprises a plurality of unitcell structures, each of the unit cell structures consists of two inner sunken hexagons, the inner sunken hexagons are in a left-right symmetric dovetail shape, and every two inner sunken hexagons arearranged in an orthogonal mode and intersect at two concave angle apexes to form a complete unit cell structure; the multiple unit cell structures are connected with each other horizontally in both directions by sharing one support cell arm, and are extended in the horizontal direction to form a continuous unit layer; and a plurality of unit layers are connected with each other in the vertical direction by sharing curved ribs to form a multi-layered cross-aligned inner sunken honeycomb-shaped three-dimensional negative poisson ratio structure. According to the negative poisson ratio structural component based on the inner sunken hexagonal multi-cell unit, a significant negative poisson ratio effect is achieved, higher elastic modulus, shear modulus and storage modulus can be generated when loaded, better rebound toughness and fracture resistance are achieved and improved with the enhancement of the negative poisson ratio effect.
Owner:NANJING UNIV OF SCI & TECH

High temperature resistant modified starch filtration reducing agent and preparation method thereof

The invention discloses a high temperature resistant modified starch filtration reducing agent and a preparation method thereof. The modified starch filtration reducing agent and the preparation method comprise that: with starch, a phenolic compound, alkenyl amide and alkenyl sulfonic acid as raw materials, an oil phase solution as a continuous phase and a nonionic surfactant as an emulsifying agent, and under catalytic actions of a reduction substrate and a hydrogen acceptor substrate, a starch graft copolymer is generated through a reaction. The filtration reducing agent provided by the invention is resistant to temperature of up to 175 DEG C, and simultaneously also has good salt and calcium resistance capabilities; and the preparation method is simple and easy to implement, and has mild and controllable reaction conditions, high grafting efficiency, fast reaction speed and low cost.
Owner:SOUTHWEST PETROLEUM UNIV

Purification method of ticagrelor

InactiveCN105801583AHigh product purityReduce product lossOrganic chemistrySolventChemistry
Belonging to the technical field of pharmaceutical industry, the invention relates to the preparation field of ticagrelor, in particular to a purification method of ticagrelor. Directed at the purification blank of ticagrelor at present, especially the blank of purification technology for the product obtained by a preparation method involved in the invention, the invention discloses a purification method of ticagrelor. The method consists of the steps of: dissolving a ticagrelor crude product in a first solvent, performing hot filtration to remove solid therein, and adding a second solvent into the filtrate while it is hot, conducting cooling till a lot of solid precipitate, carrying out low temperature heat preservation until no solid precipitate, and carrying out filtration and drying, thus obtaining a ticagrelor pure product. The purification method disclosed by the invention can decrease the total impurity content of the product from 4.5% to less than 0.2%, the purified ticagrelor has purity of more than 99.75%, and the biggest individual impurity is below 0.1%.
Owner:XUZHOU WANBANG JINQIAO PHARMA +2

Pretreatment method of nonionic surfactant wastewater

The invention relates to a pretreatment method of nonionic surfactant wastewater. The invention aims to provide a method which has the characteristics of high treatment efficiency, capability of full automation operation of the treatment system and lower operating cost. The technical scheme is as follows: the method sequentially comprises the following steps: a. regulating the pH value of wastewater in a wastewater regulating tank to 2.0-4.0 with sulfuric acid, and meanwhile, adding a catalyst FeSO4; b. sending the wastewater treated by the step a into an electrolytic reaction tank filled with an oxidizer to perform electrolytic treatment, sending into a catalytic oxidation reaction tank to perform sufficient oxidation reaction, and meanwhile, enabling the wastewater output after the reaction of the catalytic oxidation reaction tank to flow to the electrolytic reaction tank according to a certain internal circulation proportion; and c. sending the wastewater output by the catalytic oxidation reaction tank in the step b into a flocculating settling unit to perform settling treatment, sending the supernate into a subsequent treatment technique, and treating the waste residues according to the specifications.
Owner:ZHEJIANG ZONE KING ENVIRONMENTAL SCI&TECH CO LTD

Health-care food having functions of weariness resistance and oxidation resistance, and preparation technology of health-care food

The invention provides a health-care food having functions of weariness resistance and oxidation resistance, and a preparation technology of the health-care food. The health-care food is prepared from the following raw materials in parts by weight: 508-778 parts of a lycium barbarum extract and 1050-1320 parts of a lepidium meyenii extract, and lycium barbarum polysaccharide and lepidium meyenii polysaccharide are used as main physiological activity ingredients. The preparation method of the health-care food comprises the following steps of obtaining the lycium barbarum extract from lycium barbarum by a water-extraction and alcohol-precipitation method, obtaining the lepidium meyenii extract from lepidium meyenii by a poaching and extraction method, and adding non-sugar auxiliary materials acceptable by the health-care food so that an oral administration preparation can be made. The health-care food has obvious effect of weariness resistance, and can alleviate the fatigue feeling of sub-health state people and crowds having excessive brain labor and physical labor, the working efficiency can be improved, and besides, the health-care food has the health-care functions of resisting oxidation and enhancing organism immunity. The preparation technology of the health-care food disclosed by the invention is simple and convenient to operate, high in production efficiency and low in cost; and the prepared health-care food is moderate in sour and sweet degrees, convenient to take and high in safety, and the product quality completely meets requirements.
Owner:宁夏五行科技有限公司

High-temperature-resistant filtrate reducer and preparation method thereof

The invention discloses a high-temperature-resistant filtrate reducer and a preparation method thereof. The high-temperature-resistant filtrate reducer is composed of, by weight, 2.5-11.5 parts of lignin, 1-4 parts of acrylamide, 0.5-1.5 parts of p-methylphenol and 1-6 parts of 2-acrylamido-2-methylpropane sulfonic acid. The method includes the first step of filtering papermaking black liquid to extract lignin, the second step of establishing a water-phase solution with reactive monomers, the third step of establishing a reaction monomer microemulsion solution, and the fourth step of adding other reaction elements to prepare the high-temperature-resistant filtrate reducer finished product. The high-temperature-resistant filtrate reducer and the preparation method have the advantages that the temperature resistance of the filtrate reducer is improved, and the filtrate reducer is suitable for being industrially applied and popularized.
Owner:CHINA PETROLEUM & CHEM CORP

Ganqitangning Sugar-free chewable tablet as well as preparation technology and application thereof

The invention provides a Ganqitangning chewable tablet as well as a preparation technology and an application thereof. The chewable tablet comprises raw materials and auxiliary materials in parts by weight as follows: 880.0-1320.0 parts of a lycium barbarum extract, 232.0-348.0 parts of a licorice extract, 760.5-1140.7 parts of a diluent, 216.0-324.0 parts of an antiadherent, 32.8-49.2 parts of a flavoring agent, 21.6-39.1 parts of a glidant and 21.6-32.4 parts of a lubricant; lyceum barbarum polysaccharide and LF (licorice flavonoids) are taken as main physiologically active ingredients; the extracts are obtained from the lycium barbarum and the licorice with a percolation method, an ethanol reflux extraction method and other methods, and the tablet is prepared through addition of non-sugar auxiliary materials acceptable by health food to the extracts. The chewable tablet has the health care functions of assisting in blood glucose reduction, delaying senescence, resisting fatigue and enhancing immunity of the organism. The process is simple and convenient to operate, the production efficiency is high, and the cost is low; the chewable tablet tastes excellent and is convenient to take and high in safety, and the quality meets requirements.
Owner:宁夏回族自治区药品检验所 +2

Healthcare food with function for assisting lowering of blood glucose and preparation process of healthcare food

PendingCN106723029AImprove immune function changesAnti agingFood scienceBULK ACTIVE INGREDIENTGLYCYRRHIZA EXTRACT
The invention provides healthcare food with a function for assisting the lowering of blood glucose and a preparation process of the healthcare food. The healthcare food is prepared from the following raw materials in parts by weight: 980 to 1320 parts of barbary wolfberry fruit extract and 232 to 348 parts of liquorice root extract, wherein lycium barbarum polysaccharide and licoflavone are used as main physiologically active ingredients. The preparation method of the healthcare food comprises the following steps: acquiring extract of barbary wolfberry fruits and liquorice roots respectively by adopting a water extraction and alcohol precipitation method, an ethanol reflux and extraction method and the like, adding non-sugar auxiliary materials acceptable to the healthcare food, and preparing into effervescent tablets. The healthcare food has an obvious effect for lowering the blood glucose and improving pancreas islet function, can improve symptoms of various complications of the diabetes such as diabetic nephropathy, retinopathy, immune function change, nervous lesion and the like; and meanwhile, the healthcare food has the healthcare function for resisting the oxidation and improving the immunity of the body. The preparation process is simple in operation, high in production efficiency and low in cost; and the prepared effervescent tablet is moderate in sweetness and sourness, convenient to eat and high in safety, and the product quality can completely meet the requirement.
Owner:宁夏五行科技有限公司

QiKa vigor-benefiting effervescent tablets and preparation process and application thereof

The invention provides QiKa vigor-benefiting effervescent tablets and a preparation process and application thereof; the QiKa vigor-benefiting effervescent tablets are prepared from the main and auxiliary materials, including, by weight, 508-778 parts of wolfberry fruit extract, 1050-1320 parts of Maca extract, 336-504 parts of a disintegrating agent, 280-430 parts of a diluent, 880-1330 parts of an effervescing agent, 160-240 parts of a coating agent, 38-58 parts of a corrective, and 32-48 parts of a fluidizer; Lycium barbarum polysaccharide and Maca polysaccharide are used as main physiological active ingredients; the preparation process of the QiKa vigor-benefiting effervescent tablets comprises: subjecting wolfberry fruit to water extraction, alcohol precipitation and vacuum drying, and Maca to boiling extraction and spray drying to obtain extract, adding acid and alkali coating agents and other acceptable auxiliaries to obtain sugar-free effervescent tablets. The QiKa vigor-benefiting effervescent tablets are healthily functional in resisting fatigue, resisting oxidation and enhancing body immunity; the process is simple to perform, high in production efficiency and low in cost; the prepared effervescent tablets are sour and sweet, convenient to take and high in safety and have satisfactory quality.
Owner:宁夏五行科技有限公司 +1

High-thermal-conductivity rubber composite modified asphalt and preparation method thereof

The invention relates to the technical field of asphalt modification, in particular to high-thermal-conductivity rubber composite modified asphalt and a preparation method thereof. The high-thermal-conductivity rubber composite modified asphalt is prepared from the following raw materials in parts by weight: 2.5 to 4.5 parts of thermal conductive filler, 13 to 18 parts of rubber, 1.5 to 4.5 parts of PE (Polyethylene) plastic, 72.6 to 82.85 parts of asphalt and 0.15 to 0.4 part of stabilizer, the heat-conducting filler comprises at least one of carbon fibers, graphite, acetylene black, aluminum oxide and aluminum nitride. By adding the heat-conducting filler into the rubber modified asphalt, the technical problem that the rubber asphalt in the prior art is poor in heat-conducting property and cannot meet application requirements is solved. According to the technical scheme, the heat-conducting property of the modified asphalt is improved, meanwhile, the influence of the heat-conducting material on various properties of the modified asphalt is small, the problems that rubber modified asphalt is difficult to heat on site, high in heating temperature and the like can be solved, and wide application prospects are achieved.
Owner:贵阳市城市发展投资集团股份有限公司 +2

Method for enriching and recycling niobium, rare earth and titanium from polymetallic ore containing iron, niobium and rare earth

The invention discloses a method for enriching and recycling niobium, rare earth and titanium from polymetallic ore containing iron, niobium and rare earth. The method comprises the following steps: mixing the polymetallic ore containing iron, niobium and rare earth, a slag former and a reducing agent in a mass ratio of 100: (2100): (0-30); putting the ingredients into a smelting furnace to be smelted, and producing furnace slag and smoke; adjusting an oxygen potential in the furnace and the CaO / SiO2 mass ratio to an appropriate range by controlling the composition in the ingredients and the oxygen potential in the furnace, and monitoring the components of a smelting product and a recovery rate of iron, wherein the CaO / SiO2 mass ratio is 2.5-6.0; discharging the produced slag into a slag ladle, cooling and crystallizing; crushing and finely grinding the obtained slag to obtain slag powder; treating the obtained slag powder by adopting a beneficiation process to obtain high-grade composite concentrate containing niobium, rare earth and titanium. The method is simple in step, convenient to operate and good in economic benefit, and can obtain the composite concentrate for comprehensively recycling various valuable metals.
Owner:CHANGSHA RES INST OF MINING & METALLURGY

Oxidation method for optimizing thermal parameters of concentrate pellets of fine-grained magnets

The invention relates to an oxidation method for optimizing thermal parameters of concentrate pellets of fine-grained magnets. A grate-kiln-ring cold machine system for producing iron ore pellets, a smoke circulation treatment system and operation parameters in the thermal process of producing pellets by adopting the systems are involved. The operation parameters in the thermal process comprise the air temperature (DEG C), the rate of temperature increase (DEG C / min), the height of a material layer (mm), the operation speed of a grate (m / min) and the oxygen content of a calcination atmosphere(%). The method is characterized in that when concentrate of the fine-grained magnets is used as a pellet raw material to prepare fresh pellets, by optimizing and regulating the thermal parameters ofproducing the pellets and controlling the oxidation ratio of the pellets of a pre-heating segment, a calcination segment and a cooling segment, the pellets can be deeply oxidized and efficiently solidified. The oxidation method has the advantages that the average compressive strength of the pellets is increased by 290 N / piece or above, and the quality of the pellets is improved. The thermal parameters only need to be optimized, and the method is suitable for industrial application and popularization.
Owner:ANSTEEL GRP MINING CO LTD

A kind of preparation method of solid acid catalyst for producing ethylene by oxidative coupling of methane

ActiveCN109289833BImprove response resultsInhibit deep oxidationCatalystsHydrocarbon preparation catalystsPtru catalystSolid acid
The present invention relates to a kind of preparation method of methane oxidative coupling ethylene solid acid catalyst, the method comprises the following steps: (1) TiO 2 Fully grind to 6000~7000 mesh, add it to the tungsten salt solution, impregnate with ultrasonic, stir and evaporate to dryness in a water bath to obtain the tungsten-titanium solid acid precursor; the tungsten-titanium solid acid precursor is roasted and ground into powder to obtain WO 3 Solid acid WO with a content of 5 wt%~15 wt% 3 / TiO 2 Carrier; (2) Add LiNO sequentially in ionized water 3 , Mn(NO 3 ) 2 , and make it completely dissolved, and then impregnate the solid acid WO with excess impregnation method 3 / TiO 2 carrier to obtain impregnation; (3) stirring and evaporating the impregnation in a water bath, grinding it into powder and roasting to obtain a solid acid catalyst. The preparation method of the invention is simple, the preparation conditions are mild, and the three industrial wastes are less, and the obtained catalyst has the advantages of good performance, long service life and the like.
Owner:LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI

A kind of anti-high temperature modified starch fluid loss reducer and preparation method thereof

The invention discloses a high temperature resistant modified starch filtration reducing agent and a preparation method thereof. The modified starch filtration reducing agent and the preparation method comprise that: with starch, a phenolic compound, alkenyl amide and alkenyl sulfonic acid as raw materials, an oil phase solution as a continuous phase and a nonionic surfactant as an emulsifying agent, and under catalytic actions of a reduction substrate and a hydrogen acceptor substrate, a starch graft copolymer is generated through a reaction. The filtration reducing agent provided by the invention is resistant to temperature of up to 175 DEG C, and simultaneously also has good salt and calcium resistance capabilities; and the preparation method is simple and easy to implement, and has mild and controllable reaction conditions, high grafting efficiency, fast reaction speed and low cost.
Owner:SOUTHWEST PETROLEUM UNIV

Preparation method of lignin carbon film for adsorbing H2S

The invention belongs to the field of preparation of deodorization materials, and particularly relates to a preparation method of a lignin carbon film for adsorbing H2S. The method comprises the following steps: carbonizing alkali lignin at high temperature to obtain alkali lignin carbon; mixing the alkali lignin carbon, water, polyvinyl alcohol and glycerol according to a certain proportion to prepare a film preparation solution; and finally, casting the film preparation liquid onto a culture dish by using a solution casting method, and drying to obtain a final product. The method has the advantages that the process is simple, the lignin carbon film can adsorb H2S and is good in effect, the raw materials of the film are alkali lignin, polyvinyl alcohol and water, the preparation cost is low, meanwhile, a new thought is provided for high-value resource utilization of lignin, and the method is suitable for industrial large-scale production.
Owner:HARBIN UNIV OF SCI & TECH

Aluminum alloy for vehicle body and preparation method thereof

The invention provides an aluminum alloy for an automobile body and a preparing method of the aluminum alloy and relates to the technical field of component design and heat treatment of aluminum alloys used for covering parts of automobile bodies. The aluminum alloy for the automobile body comprises, by weight percent, 0.7%-1.2% of Mg, 0.4%-0.8% of Si, 0.2%-0.9% of Cu, 1.5%-3.0% of Zn, smaller than or equal to 0.5% of Fe, 0.02%-0.06% of Sn, 0.02%-0.06% of In and the balance Al. Due to the fact that chemical components are limited and optimized, the aluminum alloy for the automobile body has higher room temperature stability, and therefore the baking varnish capability of the downstream part of the aluminum alloy for the automobile body can be obviously improved. In addition, the preparingmethod of the aluminum alloy for the automobile body includes the step that an aluminum alloy raw material is smelted into a blank, and the chemical components of the blank are controlled to meet theabove requirement. By means of the preparing method, the production process is shortened, the cost is reduced, and the preparing method is suitable for industrial application and popularization.
Owner:SHANDONG NANSHAN ALUMINUM +3

Ganqi Tangning sugar-free chewable tablet and its preparation process and application

The invention provides a Ganqitangning chewable tablet as well as a preparation technology and an application thereof. The chewable tablet comprises raw materials and auxiliary materials in parts by weight as follows: 880.0-1320.0 parts of a lycium barbarum extract, 232.0-348.0 parts of a licorice extract, 760.5-1140.7 parts of a diluent, 216.0-324.0 parts of an antiadherent, 32.8-49.2 parts of a flavoring agent, 21.6-39.1 parts of a glidant and 21.6-32.4 parts of a lubricant; lyceum barbarum polysaccharide and LF (licorice flavonoids) are taken as main physiologically active ingredients; the extracts are obtained from the lycium barbarum and the licorice with a percolation method, an ethanol reflux extraction method and other methods, and the tablet is prepared through addition of non-sugar auxiliary materials acceptable by health food to the extracts. The chewable tablet has the health care functions of assisting in blood glucose reduction, delaying senescence, resisting fatigue and enhancing immunity of the organism. The process is simple and convenient to operate, the production efficiency is high, and the cost is low; the chewable tablet tastes excellent and is convenient to take and high in safety, and the quality meets requirements.
Owner:宁夏回族自治区药品检验所 +2

Preparation method of coal-based graphite/carbon composite negative electrode material for power type lithium ion battery

The invention discloses a preparation method of a coal-based graphite / carbon composite negative electrode material for a power type lithium ion battery. The method comprises the steps of wetting and mixing, heating and pressurizing, pressure relief treatment, coating modification, carbonization treatment and the like. According to the invention, graphitized anthracite micro powder is used as a raw material, and an environment-friendly solid-phase, low-temperature and low-pressure controllable micro-expansion technology and processes such as coating and carbonization are adopted, so that the prepared negative electrode material has a porous structure and a microcrystal particle structure microcosmically. In addition, the interlamellar spacing of the graphite sheets is enlarged, the graphite sheets are macroscopically represented as micron-scale particles, and the specific surface area is greatly reduced; therefore, a short and developed diffusion channel is easily provided for diffusion of lithium ions, so that diffusion of the lithium ions is accelerated, the lithium ions are suitable for being embedded and embedded out in the charging and discharging process under the conditions of high power and low temperature; meanwhile, the amorphous carbon shell protection layer enables the microcrystalline structure to have structural stability, and charging and discharging under the condition of long circulation can be met. The material has excellent multiplying power, low-temperature performance and cycle performance, and is suitable for being used as a power type lithium ion battery negative electrode material.
Owner:博尔特新材料(银川)有限公司

Qika Yiyuan effervescent tablet and its preparation process and application

The invention provides Qika Yiyuan effervescent tablet and its preparation process and application. The effervescent tablet is composed of raw materials and auxiliary materials in the following proportions by weight: 508-778 parts of wolfberry extract, 1050-parts of maca extract 1320 parts, 336-504 parts of disintegrating agent, 280-430 parts of diluent, 880-1330 parts of effervescent agent, 160-240 parts of coating agent, 38-58 parts of flavoring agent, 32-48 parts of glidant; Lycium barbarum polysaccharides and maca polysaccharides are the main physiologically active ingredients; the preparation method of the effervescent tablet is to extract the wolfberry with water, ethanol, precipitate and dry under reduced pressure, and maca with water to extract and spray dry to obtain the extract, then add an acid agent and an alkali agent The sugar-free effervescent tablet is made from inclusions and other acceptable auxiliary materials. It has the health care functions of anti-fatigue, anti-oxidation and enhancing the body's immunity. The process is simple and convenient in operation, high in production efficiency and low in cost; the obtained effervescent tablets are sweet and sour, convenient to take, high in safety and meet the requirements in quality.
Owner:宁夏五行科技有限公司 +1

A preparation method of double nano-hydroxyapatite/titanium composite gradient coating

The invention discloses a preparation method of a double nano-hydroxyapatite / titanium compound gradient coating. The preparation method comprises the following steps: carrying out mechanical ball milling on hydroxyapatite with a nano-structure and titanium powder under the protection of inert gas to prepare nano-hydroxyapatite / titanium compound powder with the hydroxyapatite content of 30 to 70 volume percent; sieving and collecting hydroxyapatite / titanium compound powder with the grain diameter of 10 to 30mum; carrying out sand spraying and roughening treatment on a Ti6A14V matrix; depositinga micron porous titanium coating with the thickness of 50 to 100mum on the surface of a matrix material by adopting a cold spraying technology; then preparing the hydroxyapatite / titanium compound gradient coating on the surface of the porous titanium coating by adopting the cold spraying technology. The preparation method disclosed by the invention can realize a phase structure and component transplanting, interparticle combination is easy to control and interlayer combination is improved; the prepared coating has good density; the preparation method is simple to operate and relatively low incost and is especially suitable for industrial application and popularization.
Owner:XINYU UNIV

A kind of hydrophobic association modified starch thickener and preparation method thereof

The invention discloses a hydrophobic association modified starch tackifier and a preparation method thereof. The tackifier is composed of starch, alkenyl amide, sodium alkenyl carboxylate, sodium alkenyl sulfonate, a crosslinking agent and fluorocarbon The hydrophobic monomer of the group is a kind of starch graft copolymer produced by the reaction of raw materials, wherein the molar ratio of alkenyl amide, alkenyl sodium carboxylate, alkenyl sodium sulfonate and crosslinking agent is 20‑50:10‑20 : 10‑30: 2‑5; the molar ratio of the sum of alkenyl amide, sodium alkenyl carboxylate, sodium alkenyl sulfonate and crosslinking agent to the hydrophobic monomer containing fluorocarbon groups is 300: 1‑3; the production method is: step 1, add raw materials in the container, and set aside; step 2, gelatinize; step 3, stir; step 4, add the first part of the initiator; step 5, add the second part of the initiator; 6. Obtain the target product. Beneficial effects: the tackifier provided by the invention is a natural modified polymer with strong hydrophobic association. The preparation method is suitable for industrial application and popularization.
Owner:CHINA PETROLEUM & CHEM CORP

Flower bag dual-face carver

The invention provides a flower bag dual-face carver, wherein the carver is reasonable in structure, good in safety performance, high in production efficiency, and can cut a trapezoid flower bag in one time; the flower bag dual-face carver is connected with a flower bag maker reciprocated transfer device, and comprises the following elements: a trapezoid frame comprising a first oblique beam and a second oblique beam, and the frame is arranged on a work platform through frame guide poles; crossbeams including a first crossbeam and a second crossbeam, wherein the first crossbeam is arranged below the first oblique beam through the first guide rod, and the second crossbeam is arranged below the second oblique beam through the second guide rod; cutters comprising a first cutter and a second cutter, wherein the first and second cutters are respectively arranged below the first and second crossbeams, and the two cutters form an angle; a power off protector and a control circuit arranged on the frame. The frame guide poles, the first guide rod, and the second guide rod are respectively telescopic guide poles, and the frame is connected with the reciprocated transfer device.
Owner:TIANJIN JINLICHENG PACKING

Hot carrier bidirectional separation type p-i-n type two-dimensional heterojunction, preparation method and device

The invention discloses a hot carrier bidirectional separation type p-i-n type two-dimensional heterojunction, a preparation method and a device. The heterojunction is of a sandwich structure and comprises an n-type semiconductor material, metal with a nano structure and a p-type semiconductor material from bottom to top. Or the heterojunction comprises the p-type semiconductor material, the metal with the nano structure and the n-type semiconductor material from bottom to top. The preparation method comprises the following steps: depositing a layer of n-type semiconductor material on the surface of a substrate; depositing a layer of metal with a nano structure on the surface of the n-type semiconductor material by adopting a physical vapor deposition mode; and depositing a layer of p-type semiconductor material on the metal surface with the nano structure. According to the invention, Schottky junctions are respectively formed by the metal of the nanostructure arranged in the middle and the p-type semiconductor and the n-type semiconductor, so that the generation, transmission and collection efficiency of current carriers is effectively improved, and the light absorption is improved.
Owner:HUAZHONG UNIV OF SCI & TECH

A kind of preparation method of 4,4-dichlorodiphenyl sulfone

The invention discloses a preparation method of 4,4-dichlorodiphenyl sulfone. The preparation method of the 4,4-dichlorodiphenyl sulfone comprises the following steps of adopting dimethyl sulfoxide as a catalyst, adopting liquid sulfur trioxide and dimethyl sulfate as reaction raw materials, and carrying out esterification reaction for 2 to 3h at the temperature of 10 to 50 DEG C to obtain an esterification material; dropwise adding the esterification material into chlorobenzene, stirring and reacting for 3 to 6h at the temperature of 20 to 50 DEG C to obtain a condensation material; warming the condensation material to be 50 to 70 DEG C, dropwise adding the warmed condensation material into alkali solution to hydrolyze, warming to be 70 to 100 DEG C, stirring, backflowing for 1 to 1.5h, cooling to be 10 to 60 DEG C, centrifuging, washing a filter cake to be neutral, and obtaining the 4,4-dichlorodiphenyl sulfone. The technological method provided by the invention has the comprehensive advantages of smaller raw material unit consumption, high yield, stable production quality, simple preparation process, moderate reaction condition, easiness in operation and control, less three industrial wastes, energy conservation and environmental protection and the like compared with the prior art, and is very suitable for popularization and application of the current industrial production.
Owner:河北旭隆化工有限公司

Preparation method of solid acid catalyst for oxidative coupling of methane to ethylene

ActiveCN109289833AImprove response resultsInhibit deep oxidationCatalystsHydrocarbon preparation catalystsWater bathsSolid acid
The invention relates to a preparation method of a solid acid catalyst for oxidative coupling of methane to ethylene. The method comprises the steps of: (1) fully grinding TiO2 to 6000-7000 meshes, then adding the ground TiO2 into a tungsten salt solution, conducting ultrasonic impregnation, stirring and evaporation to dryness in water bath to obtain a tungsten-titanium solid acid precursor; roasting and grinding the tungsten-titanium solid acid precursor into powder, thus obtaining a WO3 / TiO2 carrier with a WO3 content of 5wt%-15wt%; (2) adding LiNO3 and Mn(NO3)2 into ionized water in order for complete dissolution, and then impregnating the solid acid WO3 / TiO2 carrier by excessive impregnation process to obtain an impregnated substance; and (3) subjecting the impregnated substance to stirring and evaporation to dryness in water bath, performing grinding into powder, and then conducting roasting to obtain the solid acid catalyst. The preparation method provided by the invention has the characteristics of simplicity, mild preparation conditions and few industrial three wastes, and the obtained catalyst has the advantages of good performance, long service life and the like.
Owner:LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Low-temperature salt catalytic synthesis method of phosphorite structure lanthanum germinate powder material

The invention provides a low-temperature salt catalytic synthesis method of a phosphorite structure lanthanum germinate powder material, and belongs to the technical field of medium-temperature solid oxide fuel battery electrolyte materiasl. Lanthanum oxide and germanium oxide are used as initial reaction raw materials; LiCl is used as a salt catalyst; a reaction raw material and the catalyst are subjected to technical flow processes of mechanical mixing, grinding, early stage heat treatment, low-temperature sintering and the like. After the reaction is completed, a deionized water solvent is used for dissolving the salt catalyst; the apatite structure lanthanum germinate powder material can be obtained. The method provided by the invention has the advantages that the germanium volatilization loss under the high-temperature sintering conditions can be avoided; the advantages of simple process, low synthesis temperature, uniform chemical ingredients of the prepared powder, small particle diameter of particles, good crystal appearance, high phase purity and the like are realized. The phosphorite structure lanthanum germinate powder material is used as a medium-temperature solid oxide fuel battery electrolyte material; the conductivity reaches the order of the conventional high-temperature electrolyte material, so that the material is applicable to practical use and is suitable for industrial application and popularization.
Owner:JILIN UNIV

Method for enriching and recovering niobium, rare earth and titanium from polymetallic ore containing iron, niobium and rare earth

ActiveCN112281002BSolve the comprehensive recycling problemEasy to operateRotary drum furnacesManufacturing convertersSlagFlue gas
The invention discloses a method for enriching and recovering niobium, rare earth and titanium from polymetallic ores containing iron, niobium and rare earths, comprising the following steps: adding polymetallic ores containing iron, niobium and rare earths, slagging agent and reducing agent according to 100:(2~100):(0~30) mass ratio for mixing ingredients; put the ingredients into the smelting furnace for smelting, and produce slag and flue gas; control the composition of the ingredients and the oxygen potential in the furnace, and monitor The composition of the smelting output, the recovery rate of iron to adjust the oxygen potential and CaO / SiO in the furnace 2 Mass ratio to a suitable range, CaO / SiO 2 The mass ratio is 2.5-6.0; the output slag is discharged into the slag bag, cooled and crystallized; the obtained slag is crushed and then finely ground to obtain slag powder; the obtained slag powder is processed by mineral processing to obtain high-grade niobium-containing and rare earth , Titanium compound concentrate. The method of the invention has the advantages of simple steps, convenient operation and good economic benefits, and can obtain composite concentrates for comprehensively recovering various valuable metals.
Owner:CHANGSHA RES INST OF MINING & METALLURGY
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