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59results about How to "Time-consuming to improve" patented technology

Parallel object detection method for heterogeneous multithreaded microarchitectures

A parallel object detection method for heterogeneous microarchitectures. The method is designed for increasing the throughput of object detection in a computer system that is equipped with an array of cores including a shared memory, a constant memory, and functional units. Latency reduction is achieved through a multilevel parallelization method that exploits fine-grain data-level parallelism using multithreaded SIMD computations, and coarse-grain parallelism by relying on concurrent kernel execution.
Owner:HERTA SECURITY

Graphene dispersion liquid and method for preparing graphene material power

InactiveCN104071778AGood dispersionSolve the prone reunion problemWater basedOrganic solvent
The invention provides a graphene dispersion liquid which comprises an organic solvent and a graphene material dispersed in the organic solvent, wherein the graphene dispersion liquid is prepared by virtue of the following steps: S1, providing a graphene water-based slurry which comprises the graphene material and water; S2, adding the organic solvent once or multiple times into the graphene water-based slurry in an accumulated manner to obtain a mixed slurry, wherein the organic solvent and the water can form an azeotropic system; S3, heating the mixed slurry till all moistures in the mixed slurry are removed, so as to obtain the graphene dispersion liquid. The invention further provides a method for preparing graphene material power by using the graphene dispersion liquid.
Owner:NINGBO MORSH TECH +1

Preparation method of immunogold rapid test paper for vibrio parahaemolyticus

The invention discloses a preparation method of immunogold rapid test paper for vibrio parahaemolyticus. The method comprises the following steps of: (a) preparing a vibrio parahaemolyticus antigen; (b) preparing a vibrio parahaemolyticus inactivated vaccine; (c) preparing a polyvalent antiserum with a vaccine immune experimental rabbit; (d) purifying the antiserum; (e) marking with colloidal gold; and (f) preparing an immunogold test strip. A detection technology in which the immunogold rapid test paper for vibrio parahaemolyticus is adopted has the advantages of easiness, sensitivity, rapidness, specificity and the like; the customs clearance speed of port imported and exported goods can be increased greatly; and meanwhile, the test paper has the advantages of low price, no need of instrument, easiness and rapidness for operationing and easiness in judging results.
Owner:厦门佰能检验技术服务有限公司

Method and device for clearing privacy data

InactiveCN104090922ASolve the problem of findingIncreased read and write lifespanSubstation equipmentSpecial data processing applicationsInternet privacyInterface position
The embodiment of the invention provides a method for clearing privacy data. The method comprises the steps of receiving a clearing request clicked by a user at a first preset interface position; sending the clearing request to a clearing program for clearing the privacy data according to the clearing request, generating a clearing result and returning the clearing result; showing the clearing result. According to the method, the clearing speed can be increased, the accuracy is improved, the manual operation is reduced, the time consumption is reduced, the read-write life span of a storage medium is prolonged, the cost is lowered, the calculation for clearing the privacy data is reduced, and the clearing efficiency is improved.
Owner:BEIJING QIHOO TECH CO LTD +1

Method for quickly generating short video based on template

The invention provides a method for quickly generating a short video based on a template. The method comprises the following steps: inputting a short video theme; performing template matching in a short video template library according to the short video theme to obtain a recommended short video template type; selecting a target short video template from the recommended short video template types according to the hobbies of the user; importing basic pictures, subtitles, dubbing characters and video materials into the target short video template; automatically synthesizing the basic pictures, subtitles, dubbing characters and video materials into a short video through the target short video template; and modifying or editing the automatically synthesized short video to obtain a high-quality short video. According to the method for quickly generating the short video based on the template provided by the invention, the high-quality short video is quickly generated through the template, so that a user can obtain the high-quality short video even if the user does not have high video processing knowledge, and does not need to spend a large amount of time in processing the video by himself / herself.
Owner:网娱互动科技(北京)股份有限公司

Primers for differential diagnosis of porcine epidemic diarrhea virus virulent strain and attenuated strain and detection kit thereof

The invention relates to primers for differential diagnosis of a porcine epidemic diarrhea virus virulent strain and attenuated strain and a detection kit thereof, and belongs to the field of biotechnology. Total RNA is used as a template, the detection primers for differential diagnosis of the porcine epidemic diarrhea virus virulent strain and attenuated strain are used for RT-PCR amplification, and after the reaction is finished, a result is judged according to the amplified fragment number and the amplified fragment molecular weight range. The primers have good specificity, the detection method is fast and simple, the accuracy is high, and a guarantee is provided for the differential diagnosis of the porcine epidemic diarrhea virus virulent strain and attenuated strain.
Owner:JIANGSU ACAD OF AGRI SCI

Micro-control device for reducing plate anchor burial depth loss and construction method of micro-control device

The invention discloses a micro-control device for reducing the plate anchor burial depth loss and a construction method of the micro-control device. The micro-control device comprises a plate anchorand a barrel-shaped foundation. The two sides of the upper portion of the plate anchor are connected with steel rods. The steel rods are connected with the plate anchor through steel cables. In the assembling process, the steel rods are inserted in sleeves on the outer wall of the barrel-shaped foundation, in the construction process, after the plate anchor penetrates into the seabed at the designdepth, the barrel-shaped foundation floats up, an anchor plate of the plate anchor is completely separated from an anchor plate clamping opening of the barrel-shaped foundation, the upper portions ofthe steel rods are still located in the sleeves, the plate anchor is dragged and restrained by the steel rods embedded in the sleeves, and the burial depth loss of the plate anchor in the rotation process is reduced. The rotation process of the plate anchor is actually restrained to a certain degree through the large strength and the large rigidity of the barrel-shaped foundation, rotational motion of the plate anchor can be achieved, too large upward displacement can be avoided, so that the burial depth loss is greatly reduced, and finally the bearing capacity of the plate anchor is improved. The construction method is simple in operation, construction difficulty and consumed hours are not increased, and the performance cost ratio is high.
Owner:HEFEI UNIV

Manufacturing method of polyimide/polyacrylonitrile-based blended pre-oxidized fiber

The invention discloses a manufacturing method of a polyimide / polyacrylonitrile-based blended pre-oxidized fiber and belongs to the technical field of fibers. The manufacturing method comprises the following steps: uniformly mixing a PAA spinning solution and a PAN spinning solution by virtue of a mechanical blending method to obtain a PAA / PAN mixed spinning solution, and obtaining a PAA / PAN blended primary fiber by virtue of wet method / dry-wet method spinning, wherein the mass fraction of PAN, occupying PAA (without counting the solvent), is 2-80 percent; and in the heat treatment process, carrying out 4-segement thermal drying treatment, with the temperature range of 60-160 DEG C, by virtue of a layer-based thermal stabilization furnace, carrying out 4-segement pre-oxidization treatment, with the temperature range of 180-300 DEG C, and finally obtaining the PI / PAN blended pre-oxidized fiber. According to the manufacturing method disclosed by the invention, by virtue of uniform blending of the two components, the two components have the synergistic effect in the heat treatment process; under the same condition, compared with the pure component, the imidization degree and the pre-oxidization degree of the blended fiber are both promoted and improved, and the blended fiber keeps high performance and can be directly used as high-performance fiber or used for preparing carbon fibers.
Owner:BEIJING UNIV OF CHEM TECH

Glyphosate synthesis technology and device

Provided is a glyphosate synthesis technology. The glyphosate synthesis technology is characterized in that a metal alkoxide organic compound is adopted as a catalyst for glyphosate synthesis and particularly for depolymerization and addition during glyphosate synthesis. The glyphosate synthesis technology includes the following steps: an alcohol and paraformaldehyde are mixed and stirred to be uniform, the catalyst is added into a mixture solution or directly added into an alcohol solution of formaldehyde, and a transparent mixture solution is generated; triethylamine and glycine are added into the transparent mixture solution, stirring is conducted to carry out an addition reaction, and after the addition reaction is finished, dimethyl phosphite is added into the mixture solution to carry out a condensation reaction; and after the condensation reaction is finished, hydrochloric acid is added into the mixture solution to carry out hydrolysis, and then through crystallization, washingand drying, glyphosate is obtained. According to the technical scheme of the glyphosate synthesis technology, the specific catalyst is adopted, therefore, glyphosate synthesis reaction speed and selectivity are improved, reaction speeds of depolymerization and addition are high, the reactions are conducted completely, the final yield of a glyphosate product obtained through the glyphosate synthesis technology is increased by 3% or above compared with the final yield of a glyphosate product obtained through traditional technologies, and thus the glyphosate synthesis technology has a reaction advantage, an energy-saving advantage, a coat advantage and an environment-friendly advantage.
Owner:HUBEI TAISHENG CHEM

Text error correction method based on XLNet-BiGRU

PendingCN114064856ATime-consuming to improveSolve the shortcoming that embedding cannot represent polysemySemantic analysisCharacter and pattern recognitionLanguage understandingNetwork model
The invention provides a text error correction method based on an XLNet-BiGRU, and the method is characterized in that the method comprises the following steps: S1, training an XLNet (Generalized Automation Network for Language Understanding) Chinese model based on a large-scale unlabeled corpus, wherein the XLNet model mainly comprises a permutation language model (Permutation Language Model), a double-flow attention mechanism (Twood-Stream Self-Attention), and a Transform-XL core component, S2, preprocessing and labeling the text error correction corpus data; and S3, on the basis of the XLNet pre-training Chinese model trained in the S1, constructing an XLNet-BiGRU neural network model, wherein the model is mainly composed of a detection network and an error correction network, and the model is trained by using the marked data in the S2. According to the method, the problem that a traditional error correction method based on a translation model is long in time consumption is solved, and text error correction is optimized into a parallel process that error correction is carried out only aiming at error contents by using the XLNet neural network from a string travel of generating correct sentences one by one.
Owner:JIANGSU FUTURE NETWORKS INNOVATION

Method for detecting content of lysine based on near-infrared spectrum characteristic data extraction technology

The invention discloses a method for detecting the content of lysine rapidly on the basis a near-infrared spectrum characteristic data extraction technology. According to the near-infrared spectrum characteristic data extraction technology, data information related to lysine in a sample spectrum is extracted by using a competitive self-adaptive weighting algorithm, and a near-infrared calibrationmodel is established, so that the content of lysine in a feed additive, namely L-lysine sulfate, can be rapidly, efficiently and accurately detected. By adopting the method for rapidly detecting the content of lysine, as characteristic data related to substances to be detected are extracted, data amounts for establishing calibration models are reduced, the near-infrared modeling efficiency and themodel accuracy are improved, a great number of samples can be rapidly and well detected, the detection cost is reduced, and the defect that an acid hydrolysis method in the standard Determination ofAmino Acids in Feeds (GB / T 18246-2000) takes a long time and has high consumption and high instrument operation requirements is remarkably alleviated.
Owner:INST OF QUALITY STANDARD & TESTING TECH FOR AGRO PROD OF CAAS

Improvement method for crystal rod cutting

The invention relates to an improvement method for crystal rod cutting, which belongs to the technical field of photovoltaic processing. The improvement method of the crystal rod cutting adopts the technical scheme that a 1-2mm distance is reserved between crystal rods for adhering rods; resin strips are used for separately adhering the crystal rods; a line separation net device is mounted and hung on a machine outer wall; the line separation net is regulated to control the line net width within a range of 5-6 mm; a steel line is in the middle of a crevice of the separated line net and is repaired under a guide wheel with textured adhesive. The improvement method for the crystal rod cutting ensures that the reserved line net is larger than a crystal rod seam, and the generated benefits are superior to that in the prior part; the line separation net lowers head and tail sheet generated by the original cutting; qualified products are directly produced; the line separation net effectively reduces break of the line net because of the head and tail sheet; the line breaking rate is greatly lowered; the utilization rate of single-cutter equipment is improved; and the original cutting length 780 mm / cut is improved to 805 mm / cut.
Owner:ZHENJIANG HUANTAI SILICON TECH

Technology for rapidly improving performance of perovskite solar cell based on organic hole transport layer

The invention relates to a technology for rapidly improving the performance of a perovskite solar cell based on an organic hole transport layer. The invention relates to a preparation method of the perovskite solar cell; a perovskite light absorption layer is coated with a solution containing an organic hole transport material, and then annealing is carried out by adopting heat treatment to prepare the hole transport layer, wherein the heat treatment temperature is 80-120 DEG C and the treatment time is 30-120 seconds.
Owner:SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI +2

Chemical transferring method for transferring hpalXoo gene into brevibacillus brevis HAB-5

The present invention relates to biological technical field, and provides a chemical transferring method for transferring hpalXoo gene into brevibacillus brevis HAB-5, and the transferred hpalXoo gene can stably and efficiently express in the brevibacillus brevis. The chemical transferring method for transferring hpalXoo gene into brevibacillus brevis HAB-5 has the advantages of simple operation, low nutritional requirements, no special equipment requirements, short time consumption, good repeatability, and high conversion efficiency.
Owner:HAINAN UNIVERSITY

Method and device for cleaning up data of solid state disk based on cloud

InactiveCN107621924ASolve the problem of findingIncreased read and write lifespanInput/output to record carriersSolid-state driveMaster controller
Embodiments of the invention provide a method for cleaning up data of a solid state disk based on a cloud. The method comprises the following steps of receiving a cleaning request which is clicked ona predetermined first interface position by a user; sending the cleaning request to a master controller, wherein the master controller is used for completing cleaning of the data of the solid state disk according to the cleaning request, generating a cleaning result and returning the cleaning result; and showing the cleaning result. According to the method and the device, the cleaning speed can beaccelerated, the accuracy can be improved, the manual operation can be reduced, the elapsed time can be reduced, the read-write life of a storage medium can be prolonged, the cost can be reduced, theoperation during cleaning of the data of the solid state disk can be reduced, and the cleaning efficiency can be improved.
Owner:FUTUREPATH TECH

Anti-tumor polypeptide, and preparation method and application thereof

The invention belongs to the technical field of biology, and particularly relates to an anti-tumor polypeptide and a preparation method and application thereof. According to the invention, a target gene of an extracellular fragment of CLDN18.2 is introduced into a prokaryotic expression vector, and after induction, a large amount of recombinant protein with a vector tag is expressed. After purification, the relatively pure recombinant protein (His) 6-CLDN18.2 is obtained. Phage in a random dodecapeptide phage library is combined with the recombinant protein, and phage with high affinity is obtained through panning and enrichment. The polypeptide with the highest occurrence frequency is obtained by sequencing and screening after the panned monoclonal phage is amplified and extracted. The anti-tumor polypeptide provided by the invention has remarkable anti-tumor activity and has no acute or chronic toxic effect. The polypeptide provided by the invention has a short sequence and is easy to transport in vivo; a whole polypeptide production process is short in time consumption, low in cost, easy to operate and easy to realize large-scale production, and has wide clinical application value and prospect.
Owner:江苏莱森生物科技研究院有限公司

Automatic rotating device for spray-coating outer wall of bell end of nodular cast iron pipe

The invention discloses an automatic rotating device for spray-coating the outer wall of a bell end of a nodular cast iron pipe and relates to the technical field of spraying equipment of nodular cast iron pipes. The automatic rotating device comprises a bearing block and a transmission shaft vertically penetrating the bearing block. A gear is mounted on the transmission shaft and meshes with a transverse rack. The transverse rack can slide side to side along a slide way of the bearing block. The lower end of the transmission shaft is provided with a structure connected with a spray gun. The top of the bearing block is provided with a structure connected with a spray-coating trolley. A return spring is disposed at one end of the transverse rack in a spring holder fixed to the bearing block. The automatic rotating device is simple in structure and convenient to use, waste of paints is reduced, labor intensity is reduced, and work efficiency is improved.
Owner:河北新兴铸管有限公司

Glass production line cooling and edge-breaking device

The invention discloses a glass production line cooling and edge-breaking device, which comprises a cold end roller way, and is characterized in that two sets of cooling assemblies, two sets of cutting assemblies and two sets of edge-breaking assemblies are sequentially arranged in the length extending direction of the cold end roller way and symmetrically arranged on the front side and the rear side of the cold end roller way, and a controller is arranged in the center of the bottom of the cold end roller way; the cooling assembly comprises a mounting frame fixed to the side edge of the cold end roller way. The device has the beneficial effects that the position of the glass edge is detected through a distance measuring sensor, so that the position of a cooling spray head above the cold end roller way is adjusted in real time according to the required cutting width of glass, cooling liquid is sprayed corresponding to the required cutting and edge breaking position of the glass edge to achieve cooling, the problems of long consumed time and complex structure of an existing cooling mode are solved, the glass production efficiency is improved, the glass edge cooling liquid coverage range does not need to be manually adjusted, the operation is convenient, and the practicability is high.
Owner:洛玻集团洛阳龙昊玻璃有限公司

Organic catalyst for synthesis of glyphosate and glyphosate synthesizing process

The invention discloses an organic catalyst for synthesis of glyphosate. The catalyst is an alkoxy compound including alkali metal in the first main group, also comprises alkoxy metal compounds whichare prepared through a reaction between fresh anhydrous alcohol and anhydrous hydroxides or oxides of the first main-group alkali metal or the alkali metal, and is one or a combination of more of thealkoxy metal compounds in the form of an alcohol solution of the alkoxy metal compounds. The glyphosate synthesizing process comprises the steps: adding the organic catalyst to a methanol solution ofparaformaldehyde or formaldehyde, performing a depolymerization reaction, adding triethylamine and glycine after completion of the reaction, performing stirring for an addition reaction, adding dimethyl phosphite after completion of the reaction, performing a condensation reaction, adding hydrochloric acid for hydrolysis after completion of the reaction, and then performing crystallization, washing and drying so as to obtain glyphosate. The reaction speed and reaction selectivity of glyphosate synthesis can be improved through the specific catalyst, the depolymerization reaction has a high speed and thoroughness, and the addition reaction also has high selectivity, so that the yield of the glyphosate product reaches 3% or above; and the process has the advantages of reactions, energy saving, cost and environmental protection.
Owner:HUBEI TAISHENG CHEM

A micro-control device and its construction method for reducing the buried depth loss of flat anchors

ActiveCN109398613BIncrease the difficultyBurial depth loss reductionAnchorsEngineeringUltimate tensile strength
The invention discloses a micro-control device for reducing the plate anchor burial depth loss and a construction method of the micro-control device. The micro-control device comprises a plate anchorand a barrel-shaped foundation. The two sides of the upper portion of the plate anchor are connected with steel rods. The steel rods are connected with the plate anchor through steel cables. In the assembling process, the steel rods are inserted in sleeves on the outer wall of the barrel-shaped foundation, in the construction process, after the plate anchor penetrates into the seabed at the designdepth, the barrel-shaped foundation floats up, an anchor plate of the plate anchor is completely separated from an anchor plate clamping opening of the barrel-shaped foundation, the upper portions ofthe steel rods are still located in the sleeves, the plate anchor is dragged and restrained by the steel rods embedded in the sleeves, and the burial depth loss of the plate anchor in the rotation process is reduced. The rotation process of the plate anchor is actually restrained to a certain degree through the large strength and the large rigidity of the barrel-shaped foundation, rotational motion of the plate anchor can be achieved, too large upward displacement can be avoided, so that the burial depth loss is greatly reduced, and finally the bearing capacity of the plate anchor is improved. The construction method is simple in operation, construction difficulty and consumed hours are not increased, and the performance cost ratio is high.
Owner:HEFEI UNIV

Method for sorting primary human marrow mesenchy malstem cell by monoclonal antibody ZUB4 immunomagnetic bead

InactiveCN1850970AHigh activityGood proliferative potentialSkeletal/connective tissue cellsHuman bodyAntigen
The invention provides the method of separating and choosing the dry cell in the marrow using the single resisting ZUB4 immune magnetoelectric bead. The medullary suspending liquid is separated to gain the single nuclear cell. Using the single clonal antibody ZUB4 for the sign, the full dry cell in the human marrow with the ZUB4 masculine antigen by the indirect immune magnetoelectric bead choosing system is gained. The full dry cell in the human body has the good developing active capability and the good proliferating potential. The ZUB4 antigen during the process of the cell bearing is steady and can be directionally induced and separated to the lipocyte, the bone cell, the nerve cell. The invention provides the perfect method of choosing and sublimating the full dry cell in the human marrow and advances the purity of the full dry cell between the original era and the efficiency of separating and culturing. The invention is propitious to the research and the extending in the clinic checking and the application of the biology characteristic of the full dry cell.
Owner:ZHEJIANG UNIV

Chiral (-)-5-azaspiro [2.4] heptane-7-alcohol as well as preparation method and application thereof

The invention discloses chiral (-)-5-azaspiro [2.4] heptane-7-alcohol as well as a preparation method and application thereof. The chiral (-)-5-azaspiro [2.4] heptane-7-alcohol is an important intermediate for producing a single isomer drug (-) AL8326, so that the drug AL8326 is expected to be separated into a compound with a single configuration, and the research progress of the chiral drug (-) AL8326 is greatly promoted through synthesis of the chiral (-)-5-azaspiro [2.4] heptane-7-alcohol; according to the preparation method disclosed by the invention, chemical resolution is carried out by utilizing hydroxyl on chiral carbon, and separation is carried out according to completely different solubility of phenylethylamine salts with two configurations in an aqueous solution, so that a product with relatively high chemical purity and optical purity is obtained; compared with traditional biological enzyme reduction method resolution and chiral preparative column resolution, the method has the advantages that consumed time is shorter, raw materials are low in price and convenient in source, operation steps are simple, the method is suitable for industrial large-scale production, and a foundation is laid for industrial production of the single isomer drug (-) AL8326.
Owner:常州佳德医药科技有限公司

Method for sorting human marrow mesenchymal stem cell by monoclonal antibody ZUE12 immunomagnetic bead

InactiveCN1850968AImprove the efficiency of isolation and cultureMaintain biological propertiesSkeletal/connective tissue cellsHuman bodyAntigen
The invention provides the method of separating and choosing the dry cell in the marrow using the single resisting ZUE12 immune magnetoelectric bead. The medullary suspending liquid is separated to gain the single nuclear cell. Using the single clonal antibody ZUE12 for the sign, the full dry cell in the human marrow with the ZUE12 masculine antigen by the indirect immune magnetoelectric bead choosing system is gained. The full dry cell in the human body has the good developing active capability and the good proliferating potential. The ZUE12 antigen during the process of the cell bearing is steady and can be directionally induced and separated to the lipocyte, the bone cell, the nerve cell. The invention provides the perfect method of choosing and sublimating the full dry cell in the human marrow and advances the purity of the full dry cell between the original era and the efficiency of separating and culturing. The invention is propitious to the research and the extending in the clinic checking and the application of the biology characteristic of the full dry cell.
Owner:ZHEJIANG UNIV

An Optimized and Accelerated Depth Map Super-resolution Interpolation Method

ActiveCN114298913BAchieve optimal speedEliminate noise problemsImage enhancementImage analysisAlgorithmImage resolution
The invention discloses an optimized and accelerated depth map super-resolution interpolation method. By pre-defining the pre-sampling kernel, the coordinate relationship between each pixel point in the window and four known pixel points of the window is stored in the pre-sampling kernel. And optimize the floating-point numerical calculation into integer numerical calculation, achieve the purpose of optimizing the speed without losing precision, and improve the efficiency of the interpolation algorithm. The present invention adopts different interpolation strategies at the boundary, eliminates the pyramid noise problem at the boundary during the reconstruction process, does not need to denoise the reconstructed depth map again, and reduces the amount of calculation and time consumption. In order to eliminate the problem of a large amount of noise in the hole area of ​​the depth map after super-resolution reconstruction, the present invention chooses to perform denoising, hole detection and hole filling on the low-resolution depth map, that is, the original depth map, before reconstruction, so as to eliminate the low-resolution depth map. The problem of noise and holes in the rate depth map.
Owner:ANHUI YUNSEN INTERNET OF THINGS TECH

An automatic measuring device for insulator creepage distance

The invention discloses an automatic measurement device for creepage distance of insulators, which solves the problem of low efficiency, high labor intensity and high error in the existing manual method for measuring creepage distance of insulators, and the automatic measurement method only uses the obtained insulator profile information to measure , the problem of inaccurate measurement. The invention includes a bracket and a calibration calibration system, the calibration calibration system is used to calibrate the position of the measurement unit before the measurement starts; the bracket adopts an L-shaped bracket, which is used to form the frame of the overall detection device, and the top of the long side frame of the L-shaped bracket is equipped with a horizontal guide rail Bracket, the horizontal guide rail bracket is provided with a horizontal moving guide rail, and the test sample suspension and fixing device is installed on the horizontal moving guide rail; the vertical support is equipped with a screw rod in the vertical direction, and a detection unit is installed between the upper and lower support rods of the short side frame of the L-shaped bracket The mounting frame, the detection unit mounting frame is provided with an adjusting industrial camera mounting seat, and the vertical laser head bracket is provided with an adjusting laser head mounting seat.
Owner:STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST

A process for catalyzing synthesis of glyphosate

An organic catalyst for synthesizing glyphosate, the catalyst is an alkoxy compound comprising the first main group alkali metal, and also comprises fresh anhydrous methanol, ethanol and potassium, sodium metal or potassium, sodium anhydrous hydroxide Or a combination of one or more of the alkoxy metal compounds prepared by oxides or prepared by alkali metal reaction, and in the form of alcoholic solutions of the alkoxy metal compounds. In the process of synthesizing glyphosate, paraformaldehyde or methanol solution of formaldehyde is depolymerized after adding organic catalyst, and after the reaction is completed, triethylamine and glycine are added to stir for addition reaction; after the reaction is completed, dimethyl phosphite is added to carry out Condensation reaction, hydrochloric acid is added for hydrolysis after the reaction is completed, and then glyphosate is obtained through crystallization, washing and drying. Using a specific catalyst to improve the reaction speed and reaction selectivity of glyphosate synthesis, the depolymerization reaction speed is fast, the reaction is thorough, the addition reaction selectivity is also high, and the glyphosate product yield is more than 5% higher, which has the advantages of reaction and energy saving. , cost advantage, environmental protection advantage.
Owner:HUBEI TAISHENG CHEM
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