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Closed type production line device and method for crushing aluminum oxide crusted blocks
InactiveCN102327804AInhibition of segregationImprove the grinding effectGrain treatmentsProduction lineEnvironmental resistance
The invention discloses a closed type production line device and a method for crushing aluminum oxide crusted blocks. In the invention, materials are crushed primarily on a production line, so that the feeding particle size is less than or equal to 300 millimeters, the discharging particle size is less than or equal to 1 millimeter, a standard discharging particle size which can only be reached by performing secondary and tertiary crushing is reached, the production efficiency is increased, the consumption is lowered, and aluminum oxide crusted blocks are recycled in time; and automatic running of the entire production line is controlled through an electric control system, so that dust purification in the crushing process is realized simultaneously. The closed type production line device consists of a mechanical part and an electric control part, wherein the mechanical part consists of a crusher, an iron remover, a conveyer, a raw material cabin, a gate valve, a vibratory feeder, a pulverizing mill, an air locking discharge valve, a coarse powder separator, a cyclone dust collector, a circular fan, a bag type dust collector, an exhaust fan, iron removers and a finished product cabin. The method for crushing the aluminum oxide crusted blocks comprises feeding, pulverizing, material separating, air replenishing, material and dust collecting and material storing in sequence. The device and the method are safe, environmentally-friendly and efficient, and energy is saved.
Owner:洛阳宇航重工科技股份有限公司
Etching liquor and circular use method thereof
The invention discloses etching liquor and a circular use method thereof. The etching liquor comprises copper chloride, organic amine, an oxidizing agent, an additive agent and deionized water. In each liter of etching liquor, 10 to 150 g of copper chloride, 10 to 200 g of organic amine, 1 to 100 g of the oxidizing agent, 1 to 100 g of the additive agent and the balance deionized water are included; in the use process of the etching liquor, the solution is alkaline, and the requirement for a device is not high, the use cost is low, operation is safe and environment-friendly, and a detection control system is simple; low etching is achieved, the etching speed is high, and stability is high. A membrane separation technology and a deposition reduction technology are combined, circular recycling of the etching liquor can be well achieved, a product after the reaction is nitrogen and water, other impurities are not brought in, and filter liquor obtained after copper filter and depositing can be recycled to be used for preparing new etching liquor.
Owner:长沙利洁环保科技有限公司
Preparation method of vitamin A acetate intermediate C15 and vitamin A acetate
ActiveCN111484524AHigh reactivityHigh purityOrganic compound preparationGroup 5/15 element organic compoundsPhosphorous acidAcetoxy group
The invention provides a preparation method of a vitamin A acetate intermediate C15 and vitamin A acetate. The method comprises the following steps: taking 1-halogenated-2-methyl-4-acetoxy-2-butene asa raw material, preparing a corresponding Wittig reagent through a substitution reaction with triphenylphosphine or triester phosphite, then carrying out a Wittig reaction with beta-cyclocitral, hydrolyzing an ester group under an alkaline condition, acidifying to obtain a corresponding halide, and carrying out a substitution reaction with triphenylphosphine or triester phosphite again to prepareC15. The vitamin A acetate can be prepared by carrying out a Wittig reaction on the obtained C15 and 2-methyl-4-acetoxy-2-butenal under an alkaline condition. The method has the advantages of singlereaction type, easy operation and realization of reaction conditions, safe and environment-friendly operation, simple post-treatment and low cost; and the reaction activity is strong, the reaction selectivity is high, the atom economy is high, and the target product yield and purity are high.
Owner:XINFA PHARMA
Alkaline etching solution and preparation method thereof
The invention discloses an alkaline etching solution. The alkaline etching solution is characterized by comprising, ammonium chloride, ammonium bicarbonate, aqua ammonia and an additive, wherein the additive is of the urea type. In the use process of the alkaline etching solution, the etching solution is alkaline, and the requirement for equipment is low; the use cost is low, operation is safe andenvironmentally friendly, and a detection control system is simple; side etching is low, the alkaline etching solution is suitable for production of dense and thin circuit boards, and the etching speed can be automatically controlled, the etching speed is high, and the stability is rapid.
Owner:佛山市华希盛化工有限公司
Preparation method of vitamin A ester intermediate C15 and vitamin A ester
ActiveCN111484525AHigh purityHigh yieldGroup 5/15 element organic compoundsHalogenated hydrocarbon preparationPhosphorous acidHalogenation
The invention provides a preparation method of a vitamin A ester intermediate C15 and vitamin A ester. The method comprises the following steps: carrying out a halogenation reaction and a cyclizationreaction on 3, 7-dimethyl-3-hydroxy-1, 6-octadiene as an initial raw material, carrying out a substitution reaction on the obtained product and triphenylphosphine or triester phosphite to prepare a corresponding Wittig reagent, carrying out a Wittig reaction on the Wittig reagent and 2-methyl-4-acetoxy-2-butenal, performing acidifying, hydrolyzing and acidifying the obtained product, and carryingout a substitution reaction on the hydrolyzed and acidified product and triphenylphosphine or triester phosphite to prepare C15. The vitamin A ester can be prepared by carrying out a Wittig reaction on the obtained C15 and 2-methyl-4-R3 substituent carbonyloxy-2-butenal. The method has the advantages of single reaction type, easy operation and realization of reaction conditions, safe and environment-friendly operation, simple post-treatment and low cost; and the reaction activity is strong, the reaction selectivity is high, the atom economy is high, and the target product yield and purity arehigh.
Owner:XINFA PHARMA
Refining method and device for high-purity DMC (dimethyl carbonate)
InactiveCN105399629AThe separation method is simpleSimple separation processCarbonic/haloformic acid esters purification/separationSeparation technologyMethyl carbonate
The invention discloses a refining method and device for high-purity DMC (dimethyl carbonate). The method comprises three steps including feeding and steam adding operation, light component collection operation and product collection. The adopted refining device comprises a horizontal retort, a rectifying tower and a secondary plate condenser, wherein the rectifying tower is filled with neat stainless steel wire mesh corrugated packing, the condenser is arranged in the tower top, a packing layer is divided into 5-8 sections, each section of the packing is 2-3.5 m high, and a liquid distributor and a liquid collector are arranged between every two sections of the packing; a charging port is arranged above the horizontal retort or at the upper part of the first section of the packing of the rectifying tower. With the adoption of the refining method and device, single-tower continuous operation is realized, the separation technology is simple, the yield is high, operation is safe and environment-friendly, energy consumption is low, and the automation degree is high.
Owner:TONGLING JINTAI CHEM INDAL
Self-fusion anti-corrosion adhesive tape and preparation method of self-fusion adhesive thereof
InactiveCN102634296ACooperate wellImprove anti-corrosion performanceFilm/foil adhesivesElastomerPolymer science
The invention discloses a self-fusion anti-corrosion adhesive tape and a preparation method of self-fusion adhesive thereof. The adhesive tape comprises a self-fusion adhesive layer and a back material layer overlapped, wherein the back material layer is in a dual-layer structure formed by co-extruding an elastomer and polyethylene; one surface of the self-fusion adhesive layer is bonded with the polyethylene of the back material layer; and the self-fusion adhesive layer is mixed colloid consisting of butyl rubber, polyethylene, inorganic reinforcing powder, tackifying resin, plasticizer and antioxidant according to a proportion. In the application of the technical scheme provided by the invention, the adhesive bonding of an adherend can be finished under the contact pressure based on the pressure-sensitive feature of the self-fusion adhesive; the construction is convenient, the requirement on the surface treatment of a pipe body is low, and the operation is safe and environmentally-friendly; and moreover, the self-fusion anti-corrosion adhesive tape also has the characteristics of good anti-corrosion effect, puncture fusion, good chemical resistance, wide application range and the like, and is not restricted by the pipe diameter and pipe shape.
Owner:江苏宝力泰新材料科技有限公司
Pneumatic portable marking gun along with line
InactiveCN106515226AOperational securityOperational safety and environmental protectionTypewritersOther printing apparatusProduction lineSemi automatic
The invention relates to a pneumatic portable marking gun along with a line. The marking gun comprises a gun body 1, an air cylinder piston 2, a trigger 3, a firing pin 4 and a steel letter head 6. A cylinder block of an air cylinder is located in a head cavity of a gun body and fixedly connected with the gun body. A return stroke gas storage chamber is formed between the outer periphery of the cylinder block and the inner periphery of the gun body. The air cylinder piston 2 is located in the cylinder block of the air cylinder. One end of the firing pin 4 is fixedly connected with the air cylinder piston 2. The other end of the firing pin 4 is fixedly connected with the steel letter head 6. The steel letter head 6 extends out of the end of the gun body. The extending end of the steel letter head 6 is slidably inserted into a guiding groove of a directional guiding rail. An inner cavity of a gun stock serves as a compressed air cavity 9. The two ends of the compressed air cavity 9 communicate with a left control cavity and a gas source correspondingly. When the pneumatic portable marking gun along with the line is used, the marking gun does not need to dismounted from the production line, the line following performance is good, the flexibility is high, the advantages of flexibility, rapidness and convenience of semi-automatic and manual marking are combined, and marking can be completed by one hand of one person.
Owner:HUAIHAI IND GRP
Method for separating ceratocystis spp from soil
InactiveCN106635839AImprove separation efficiencyAvoid the difficulty of controlling the dilution factorFungiMicroorganism based processesMicroorganismAscospore
The invention belongs to the technical field of microbes, and particularly relates to a method for separating ceratocystis spp from soil. According to the method, a carrot is used for concentrating the ceratocystis spp, the ceratocystis spp is separated and purified by means of selecting a single ascospore group for lining. Due to the fact that part of operations does not require a strict aseptic condition, the method is applicable to bacterial strain collection during field studying and field investigation, and working efficiency is increased; by means of selecting the single ascospore group for lining, a target bacterium is separated and purified, separating and purifying efficiency is increased effectively, and time is saved; the method for separating the ceratocystis spp from the soil is low in cost, wide in utilization range, safe and environmental-friendly.
Owner:CHINA AGRI UNIV
Efficient vibration swing impact nano machine system
ActiveCN106216692AOxidation no longerStimulate and increase active energyTransportation and packagingMetal-working apparatusGas cylinderMachining system
The invention discloses an efficient vibration swing impact nano machine system. The system comprises a gas cylinder, a vacuum feeding machine, a first vacuum impact nano machine, a second vacuum impact nano machine, a vacuum packing machine and a vacuum pump, wherein each of the first vacuum impact nano machine and the second vacuum impact nano machine comprises a cavity, a vibration swing machine, four high-elasticity springs and a base, impact mesons are contained in the cavity, a rectangular base is arranged at the lower part of the vibration swing machine, a support capable of fixedly connecting the cavity with the vibration swing machine is welded at the upper part of the rectangular base, lower parts of four corners of the rectangular base are fixedly connected with upper ends of the four high-elasticity springs respectively, and lower ends of the four high-elasticity springs are fastened on the base; and the first vacuum impact nano machine and the second vacuum impact nano machine are further sleeved with waterproof sleeves. The invention belongs to the technical field of microelement nano machines in medicine and health care industries and provides the only efficient vibration swing impact nano machine system which is highly anti-oxidant, safe and zero-pollution in China.
Owner:杭州宏烯新材料科技有限公司
Overflow protection cup and negative pressure regulator
ActiveCN103055359AEasy to assemble and disassembleImprove securitySuction devicesPressure regulatorEngineering
The invention relates to an overflow protection cup and a negative pressure regulator. The overflow protection cup comprises a main body, an isolation body, an inner core body, a filter and a floater. The main body comprises an accommodating portion and a clamping portion, a bottom plate of the accommodating portion is provided with a second inlet, and a protrusion block surrounding a lower port is arranged on the upper end face of the bottom plate. The isolation body comprises an isolation portion and a channel convex block arranged along the outer edge of the isolation portion, and a supporting convex block is arranged on the upper end face of the bottom plate of the isolation body. The inner core body comprises a cover plate and a limit tube arranged on the lower end face of the cover plate, a limit column is arranged on the inner side of the limit tube, the limit column protrudes out of the lower end face of the limit tube downward, and the cover plate is provided with a second outlet. The isolation body is arranged in the accommodating portion and located on the protrusion block, the inner core body is arranged in the isolation portion, the cover plate is higher than the upper end face of the isolation body and is covered at the upper end of the accommodating portion in sealing mode, the floater is arranged in the limit tube and located above the limit convex block, and the filter is arranged on the clamping portion in detachable mode. The overflow protection cup is low in use cost and environment-friendly.
Owner:珠海市奥吉赛科技有限公司
Cutting machine
ActiveCN103372917AImprove cutting accuracyOperational safety and environmental protectionWorking accessoriesStone-like material working toolsElectric machineryControl switch
A cutting machine comprises a frame, a saw blade (3) and a motor (4). The motor (4) drives the saw blade (3), the frame comprises a worktable (1) and a supporting plate (2), one end of the supporting plate (2) can be connected with the worktable (1) in a vertically swinging manner, the saw blade (3) is rotatably limited into a slot (24) at the other end of the supporting plate (2), the top of the saw blade (3) is lower than the top surface of the worktable (1), a linear laser emission device is convexly arranged on the upper surface of the supporting plate (2), emission lines can be irradiated to an object to be cut by the linear laser emission device, light rays emitted by the linear laser emission device are overlapped with a rotating circumference line of the saw blade (3), and a control switch for driving and stopping the motor (4) is arranged on the worktable (1). The cutting machine has the advantages that the cutting machine is convenient to use, high in cutting accuracy and safe and environmentally friendly to operate, and breakage of an end opening of a model to be cut can be effectively avoided.
Owner:余姚市金泰医疗器械科技有限公司
Neutralized corrosion inhibitor for petrochemical h2s-hcl-co2-hcn-h2o corrosion system
The invention discloses a neutralizing anticorrosion inhibitor for a petrochemical industry H2S-HCL-CO2-HCN-H2O corrosion system. The neutralizing anticorrosion inhibitor is prepared through the steps that malic acid, tartaric acid and glycol are mixed, stirred uniformly and heated to the temperature of 120-130 DEG C, polyethylene polyamine is added, and the mixture is subjected to the reaction for 2-3 h to obtain a reactant 1; glycol is added into the reactant 1 to obtain a reactant 2; the reactant 2 is cooled to 90 DEG C, deionized water is added, and the mixture is cooled to room temperature to obtain a reactant 3; and auxiliary synergist is added into the reactant 3 to obtain the neutralizing anticorrosion inhibitor, wherein the auxiliary synergist comprises hexamethylene tetramine and thiourea. The anticorrosion property of the neutralizing anticorrosion inhibitor is obviously superior to that of a current oil acid imidazoline and naphthenic acid imidazoline anticorrosion inhibitor, moreover, the preparation process is green and environment-friendly, and pollution to the environment is avoided.
Owner:徐文忠 +1
Lactobacillus casei for producing gamma-glutamyl transpeptidase in high yield and application of lactobacillus casei in production of L-theanine
ActiveCN111073830AHigh yieldHigh purityBacteriaMicroorganism based processesBiotechnologyIon exchange
The invention relates to lactobacillus casei TH139 for producing gamma-glutamyl transpeptidase in a high yield. The lactobacillus casei TH139 is preserved in China General Microbiological Culture Collection Center, and the preservation number is CGMCC No.18686; the strain is used to produce the gamma-glutamyl transpeptidase through fermentation at 37 DEG C and pH of 7.0; after centrifugation is performed to collect bacterial cells, the bacterial cells are subjected to bioconversion in the presence of L-glutamine and ethylamine at 40 DEG C and pH of 9.0 to obtain L-theanine; and the reaction solution is subjected to membrane separation, ion exchange resin separation is performed, and concentration crystallization is performed to obtain a qualified L-theanine finished product. The method forproducing the L-theanine by using the lactobacillus casei developed by the invention has the advantages of food safety, environmental protection, simple operation and low costs, and has good industrial application value.
Owner:HENAN JULONG BIOLOGICAL ENG CO LTD
Method for simultaneously determining four effective components in Gongying Qinglan granules
The invention relates to a method for simultaneously determining four effective components in Gongying Qinglan granules. The method comprises the following steps: extracting a test sample by using 70% ethanol as an extraction solvent, and simultaneously determining the four main components at one time by using liquid chromatography. According to the invention, 278 nm, 324 nm and 346 nm are adopted as the wavelengths of the effective components, so baseline fluctuation is small, the response values of chlorogenic acid and caffeic acid are higher, and the response value of berberine hydrochloride is also taken into consideration; the method can be used for simultaneously determining the contents of chlorogenic acid, caffeic acid, baicalin and berberine hydrochloride in the Gongying Qinglan granules, and is rapid, sensitive, accurate and high in specificity; and the method can simultaneously determine the contents of the four components through one-time sample treatment, so not only is the reagent and time saved, but also working efficiency is improved.
Owner:魏秀丽 +2
Method and equipment for refining high-purity diethyl carbonate
ActiveCN102304048BThe separation method is simpleSimple separation processCarbonic/haloformic acid esters purification/separationFractional distillationEngineeringTower
The invention discloses a method and equipment for refining high-purity diethyl carbonate, and aims to provide a method and equipment for preparing high-purity diethyl carbonate, which is characterized by single-tower continuous operation, simple separation method, high yield, safe and environment-friendly operation, low energy consumption and use of diethyl carbonate with purity of 99.5 percent as a raw material. The refining method disclosed by the invention comprises three steps: feeding and steam charging operation, light component collection operation, and side withdrawal process regulation and product collection. The rectification column of the refining equipment comprises a built-in regular stainless steel wire gauze corrugated packing and an overhead built-in condenser.
Owner:TONGLING JINTAI CHEM INDAL
Sanding method of fast-growing wood
ActiveCN107283271AThere will be no breakageHigh hardnessOther chemical processesBelt grinding machinesSanderAdhesive
The invention discloses a sanding method of fast-growing wood. The sanding method comprises the steps: (1) removing stains from the surface of the fast-growing wood, and then applying sanding auxiliaries to the surface of the fast-growing wood; (2) performing sanding treatment to the fast-growing wood with a disc sander, and the model of sanding materials is any one of 100#, 120# and 150#, wherein the substrate of the sanding materials is a fabric abrasive belt; abrasive materials comprise, by weight, 29-36 parts of brown corundum abrasives, 1-3 parts of magnesium borate, 4-7 parts of docosanamide and 1-2 parts of iodooctadecane; the abrasive materials are bonded with the substrate through adhesive. The sanding method of the fast-growing wood, provided by the invention, has the advantages of easy operation, low cost, and safety and environmental protection in the operation process, and the surface of the fast-growing wood sanded is free of burrs, and smooth and flat, so that convenience is provided for subsequent coating operation; and in the sanding process, the fast-growing wood is not broken, and the rate of finished products is high.
Owner:ANHUI XINDA HOME FURNISHING CO LTD
An Efficient Vibration Swing Impact Nanomachine System
ActiveCN106216692BOxidation no longerStimulate and increase active energyTransportation and packagingMetal-working apparatusTrace elementInsertion stent
The invention discloses a high-efficiency vibration swing impact nanometer machine system. It includes a gas cylinder, a vacuum feeder, a first vacuum shock nanomachine, a second vacuum shock nanomachine, a vacuum packaging machine, and a vacuum pump. The first vacuum shock nanomachine and the second vacuum nanomachine include a cavity, a vibration swing Machine, four highly elastic springs and a base, the cavity contains impact mesons, the lower part of the vibration swing machine is provided with a rectangular base, and the upper part of the rectangular base is welded to make the cavity and the vibration swing The bracket that is fixed to the machine, the lower parts of the four corners of the rectangular base are respectively fixed to the upper ends of the four high elastic springs, the lower ends of the four high elastic springs are fastened to the base, the first vacuum impact nanomachine and the second Second, the vacuum impact nanometer machine is also equipped with a waterproof cover. The invention belongs to the technical field of microelement nanomachines in the medicine and health care industries, and provides the only highly oxidation-resistant, safe, zero-pollution, high-efficiency vibration swing impact nanomachine system in the country.
Owner:杭州宏烯新材料科技有限公司
Adsorbent for hemoperfusion and aqueous solution to remove endotoxin and preparation method thereof
ActiveCN109046282BImmobilized reaction method is simpleGentle processOther chemical processesOther blood circulation devicesMedicineEngineering
Owner:JAFRON BIOMEDICAL
A waterproof weather balloon and its production method
ActiveCN108008471BLittle investmentSimple processPolyether coatingsInstrumentsOrganic filmSurface water
The invention relates to a waterproof weather balloon and a production method. The weather balloon comprises a balloon matrix and a hydrophobic film coated on a balloon matrix surface. The hydrophobicfilm comprises 8.5-11.5 parts of a hydrophobic main agent, 1-3 parts of a solubilizer, 0.1-0.3 parts of an organic film forming agent and 85.2-90.4 parts of water. The hydrophobic main agent is a compound of one or more of an organosilicon hydrophobic agent and an organic fluorine hydrophobic agent. In the weather balloon, a synthetic material possessing a hydrophobic function is used; and through a necessary operation, a layer of molecular film and even a nanometer film which can achieve a hydrophobic effect are manufactured on a balloon surface. After the balloon is casted and encounters water, beads are formed and are rapidly dispersed and drained so that a problem that the weather balloon which is casted on a rainy day or in humid weather carries out embrittlement acceleration and isblasted in advance due to accumulation of ice on the surface because of surface water absorption so that a service height requirement can not be satisfied is solved.
Owner:CHEMCHINA ZHUZHOU RUBBER RES & DESIGN INST
Wax painting tool used in wax printing process and application method thereof
PendingCN111731029AMany possibilitiesChange usageOther artistic work equipmentsColloidal silicaHeater Rod
The invention provides a wax painting tool used in a wax printing process and an application method thereof. An integrated silica gel pen cover is arranged at the upper end of a pen, a circuit board and a temperature sensor are arranged in the pen, and vent holes are distributed in the surface of the cover. A temperature display screen is arranged at the upper end of the pen cover, and a connecting part of the pen cover and a pen body is an openable structure. The pen cover is opened, and the pen body is leaked out. A wax inlet is formed in the upper end of the pen body, a heating rod is fixedly arranged on the inner wall of the pen body, and a heating switch is arranged at the upper end of the outer side of the pen body. A transparency window is arranged in the side face of the pen body and is double layers of high temperature resistant toughened glass so as to facilitate the observation of the amount of a solution in a pen tube. The pen body is a one-step molded stainless steel vacuum flat ellipse, a pen refill is hollow, a silica gel layer or an insulating material coating is arranged on the outer side, and an external wax melting accessory is arranged. A manually opened and closed piston is arranged at the upper end of the pen. A pen point is an embedded type design and can be replaced, the inner wall and a ball are made of stainless steel, and the outer part is made of PVCor silica gel. According to common patterns and line types of wax printing, different types and shapes of pen points are designed to facilitate painting points, faces and all kinds of thick and thinlines.
Owner:BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
A kind of sanding method of fast-growing wood
ActiveCN107283271BThere will be no breakageHigh hardnessOther chemical processesBelt grinding machinesSanderAdhesive
The invention discloses a sanding method of fast-growing wood. The sanding method comprises the steps: (1) removing stains from the surface of the fast-growing wood, and then applying sanding auxiliaries to the surface of the fast-growing wood; (2) performing sanding treatment to the fast-growing wood with a disc sander, and the model of sanding materials is any one of 100#, 120# and 150#, wherein the substrate of the sanding materials is a fabric abrasive belt; abrasive materials comprise, by weight, 29-36 parts of brown corundum abrasives, 1-3 parts of magnesium borate, 4-7 parts of docosanamide and 1-2 parts of iodooctadecane; the abrasive materials are bonded with the substrate through adhesive. The sanding method of the fast-growing wood, provided by the invention, has the advantages of easy operation, low cost, and safety and environmental protection in the operation process, and the surface of the fast-growing wood sanded is free of burrs, and smooth and flat, so that convenience is provided for subsequent coating operation; and in the sanding process, the fast-growing wood is not broken, and the rate of finished products is high.
Owner:ANHUI XINDA HOME FURNISHING CO LTD
A method for isolating the long beaker fungus from soil
InactiveCN106635839BImprove separation efficiencyAvoid the difficulty of controlling the dilution factorFungiMicroorganism based processesBiotechnologyMicroorganism
The invention belongs to the technical field of microbes, and particularly relates to a method for separating ceratocystis spp from soil. According to the method, a carrot is used for concentrating the ceratocystis spp, the ceratocystis spp is separated and purified by means of selecting a single ascospore group for lining. Due to the fact that part of operations does not require a strict aseptic condition, the method is applicable to bacterial strain collection during field studying and field investigation, and working efficiency is increased; by means of selecting the single ascospore group for lining, a target bacterium is separated and purified, separating and purifying efficiency is increased effectively, and time is saved; the method for separating the ceratocystis spp from the soil is low in cost, wide in utilization range, safe and environmental-friendly.
Owner:CHINA AGRI UNIV
A kind of preparation method of vitamin A acetate intermediate C15 and vitamin A acetate
ActiveCN111484524BHigh reactivityHigh purityOrganic compound preparationGroup 5/15 element organic compoundsPhosphorous acidHydrolysis
Owner:XINFA PHARMA
Rapid paraffin sectioning method for plant tissue
InactiveCN102967493BImprove fixation efficiencyImprove permeabilityPreparing sample for investigationPlant tissueEngineering
The invention discloses a rapid paraffin sectioning method for plant tissue. The method comprises the following steps: sampling, fixation, dehydration and vitrification, paraffin embedding and sectioning, gluing tablets and spreading tablets, and dyeing and cementing. The invention greatly improves fixation efficiency of paraffin sectioning for plant tissue by 10-20 times, compared with a fixation time of one day in traditional paraffin sectioning; tert-butyl alcohol or n-butanol is used as a dehydrating agent and a transparent agent to simplify the dehydration and vitrification step, and the dehydration and vitrification only consumes 6-7h, which has efficiency improved by more than 3 times compared with a traditional dehydration and vitrification; and infiltration efficiency of the plant tissue in paraffin and embedding quality are improved, and the penetration consumes 4-7h, which has efficiency improved by more than one time compared with the traditional paraffin infiltration method, so as to effectively solve problems of tissue hardening and brittleness caused by high temperature during the paraffin infiltration. The invention has the characteristics of simplified experimental procedures, low equipment price, short production cycle, high sectioning quality, safety and environment-friendliness.
Owner:SHANXI AGRI UNIV
Domestic rubbish disposal comprehensive furnace with high-temperature pyrolysis function
PendingCN111750361AImprove pyrolysis efficiencyIncrease the rate of oxidation reactionsIncinerator apparatusElectric machineRefuse Disposals
The invention discloses a domestic rubbish disposal comprehensive furnace with a high-temperature pyrolysis function and relates to the technical field of domestic rubbish disposal comprehensive furnaces. In order to conduct layered disposal on domestic rubbish conveniently, the comprehensive furnace specifically comprises a furnace body and a support. A pyrolysis barrel is fixed to the bottom inner wall of the furnace body through a bolt. A first rotary plate, a second rotary plate, a third rotary plate and a seal plate are rotationally connected to the circumferential inner wall of the pyrolysis barrel through a rotary shaft. A first either-rotation motor, a second either-rotation motor, a third either-rotation motor and a fourth either-rotation motor are fixed to the circumferential outer wall of the pyrolysis barrel correspondingly through bolts. The comprehensive furnace is provided with the first rotary plate, the second rotary plate and the third rotary plate which can be used for holding the domestic rubbish, meanwhile different cavities are formed between the first rotary plate, the second rotary plate and the third rotary plate through mutual separation, the domestic rubbish can be disposed layer by layer, rubbish pyrolysis efficiency is improved, and the whole pyrolysis barrel can be sealed through the seal plate.
Owner:福建汇鑫环保科技股份有限公司
Method and device for recycling protein wastewater
PendingCN111559824ASolve the problem of fractional recovery of sericinHigh recovery rateWater/sewage treatment by centrifugal separationFatty/oily/floating substances removal devicesSILK SERICINMicrofiltration membrane
The invention provides a method for recovering sericin from sericin wastewater. The method comprises the following steps: (1) clarifying sericin wastewater through a microfiltration membrane; (2) continuing to grade the penetrating fluid obtained in the step (1) by an ultrafiltration membrane; (3) after grading is finished, concentrating the penetrating fluid in the step (2) by an ultrafiltrationmembrane; and (4) drying the concentrated solution obtained in the step (3) to obtain sericin. The method is simple, high in desalination rate, safe, environmentally friendly and high in sericin recovery rate, protein can be recycled in a graded mode, and no chemical reagent is added.
Owner:JIANGSU JIUWU HITECH
Method for synthesizing Venetoclax key intermediates
The invention discloses a method for synthesizing Venetoclax key intermediates. The method includes steps of (1), carrying out coupling reaction on 5-bromine-7-azaindole and bisdiboron in solvents under the effects of organic palladium catalysts and alkali, and carrying out after-treatment after the reaction is completely carried out so as to obtain 7-azaindole-5-pinacol borate; (2), carrying out hydrolysis reaction on the 7-azaindole-5-pinacol borate obtained at the step (1) under the effect of sodium perborate, and carrying out after-treatment after the reaction is completely carried out so as to obtain the Venetoclax key intermediates. The method has the advantages that the method is easy to implement, highly toxic reagents can be omitted, and the HPLC (high-performance liquid chromatography) purity of the Venetoclax key intermediates which are products obtained by the aid of the method is higher than 99%.
Owner:杭州科耀医药科技有限公司
Composite biological enzyme waste denim decoloring preparation and decoloring process system
InactiveCN110629541ALow reaction temperatureQuick responseSucessive textile treatmentsLiquid/gas/vapor removalChlorine dioxideDenim
The invention provides a composite biological enzyme waste denim decolorizing preparation, a using method of the composite biological enzyme waste denim decolorizing preparation for treating denim leftovers, and a decolorizing process system and method. The decoloring preparation comprises the following components by content: 1.5%-2.0% of cold bleaching enzyme, 1.0%-1.5% of laccase, 5.0%-10.0% ofthiourea dioxide, 31.5%-71.5% of chlorine dioxide, 20%-53.5% of sodium percarbonate and 1.0%-1.5% of urea. Each single enzyme of the composite biological enzyme preparation provided by the invention has the characteristics of low reaction temperature and high reaction speed which are most suitable for enzyme activity, the labor, water and energy are saved, and injury to health of workers is avoided; and the solid preparation is convenient to store and convenient to transport and use. The water use amount of the decoloring process system is small, the decoloring process system can be used conveniently, a discharge process does not exist, and the decoloring process system is environmentally friendly; and the process is advanced, the degree of automation is high, the preparation can be produced continuously all seasons, running, oozing, dripping and leaking are avoided, and three wastes are also avoided.
Owner:SHANDONG SHUANGYUAN BIOTECH CO LTD
Overflow protection cup and negative pressure regulator
ActiveCN103055359BEasy to useUse safety and environmental protectionSuction devicesEngineeringPressure regulator
Owner:珠海奥吉赛医疗科技股份有限公司
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