48results about How to "Easy post-processing" patented technology

The utility model relates to a double-channel cutting machine with V-shaped configuration. The double-channel cutting machine comprises a first feeding side pinch belt, a second feeding side pinch belt and a third feeding side pinch belt, a second feeding side pinch belt; the first discharging side clamping and conveying belt corresponds to the first feeding side clamping and conveying belt through a gap; the second discharging side clamping and conveying belt corresponds to the second discharging side clamping and conveying belt in a clearance manner; and the cutter point track of the cutter during rotation passes through the gap. The first feeding side clamping and conveying belt and the second feeding side clamping and conveying belt are correspondingly arranged in the cutting main machine at a V-shaped inclination angle. Correspondingly, the first discharging side clamping and conveying belt and the second discharging side clamping and conveying belt are correspondingly arranged in the cutting main machine at the V-shaped dip angle. The blade point track of the cutter covers the whole section of the long-strip-shaped raw material and the other long-strip-shaped raw material, so that the long-strip-shaped raw material and the other long-strip-shaped raw material are cut off to produce a plurality of finished products. The double-channel cutting machine disclosed by the utility model can be used for efficiently cutting wide long-strip-shaped materials under the conditions of low equipment cost and compact equipment configuration space.

The invention provides a deuterated phenyl carbazole compound and a preparation method thereof, and belongs to the field of organic photoelectric materials. The preparation method of the deuterated phenylcarbazole compound provided by the invention comprises the following steps: mixing a phenylcarbazole compound, decahydronaphthalene, deuterium water and a catalyst, and carrying out a deuteration reaction to obtain the deuterated phenylcarbazole compound, the catalyst is any two combinations of different transition metals in Pd / C, Pt / C, Ru / C, Rh / C, Ir / C and PtO2. The deuteration efficiency and the deuteration rate of the deuterated phenyl carbazole compound can be improved by taking the decahydronaphthalene as the solvent; the high deuteration rate is realized in a mode of combining two different transition metals. The average deuteration rate of the deuterated phenyl carbazole compound prepared by the preparation method provided by the invention can reach 72.7-87.4%, and the deuterated phenyl carbazole compound has a relatively high deuteration rate.

The invention discloses a small bamboo shoot hob block processing device which comprises a base frame, a power system is installed below the base frame, and the power system is composed of a main air cylinder, an auxiliary air cylinder, a driving motor and a rotating motor and mainly controls automatic feeding and cutting of materials. The main air cylinder is connected with the telescopic column, and the detachable blade is connected to the telescopic column and can be adjusted to be at different angles. And the driving motor is connected with the roller to control the rotating angle of the small bamboo shoots so as to facilitate daily use. According to the small bamboo shoot hobbing cutter block processing equipment, bamboo shoots can be continuously cut into equal hobbing cutter blocks through electromechanical transmission, the labor intensity and the labor cost are reduced, and the working efficiency is greatly improved.

This invention relates to the field of cable laying technology, specifically to a convenient cable laying device for building electromechanical installation, comprising a bracket, a fixed pulley, and a cable, as well as a locking device and a cable management wheel. The fixed pulley is rotatably mounted on the upper front surface of the bracket. A vertically arranged groove is provided on the front front surface of the bracket below the fixed pulley. A slider is fixedly mounted on the rear end of the cable management wheel, and the slider is slidably mounted in the groove. A locking device is installed on the edge of the bracket on one side of the fixed pulley. One end of the cable passes through the fixed pulley and then through the locking device, which locks the cable in place. The other end of the cable passes around the cable management wheel, which is equipped with a tightening device for securing the cable. This invention achieves cable organization and adjustment by using the fixed pulley and cable management wheel. The locking and tightening devices secure the cable to prevent slippage, avoiding sagging at overhead locations, improving laying efficiency, and facilitating subsequent processing.

The invention discloses a synthesis method of a trifluoromethanesulfonate radical promoted amidino nickel complex. The preparation method comprises the following steps: reacting N, N '-dialkyl substituted amidino alkali metal salt with a nickel precursor, adding trifluoromethanesulfonate as an accelerant, and regulating the reaction rate and selectivity by utilizing the coordination effect of trifluoromethanesulfonate so as to efficiently prepare the amidino nickel complex. In the process, an ether compound is used as a solvent, the reaction is carried out at 0-70 DEG C for 1-48 hours, the reaction yield can reach 90% at most, and the product purity is gt; and 98%. The method has the characteristics of easily available raw materials, simplicity and convenience in operation, mild reaction conditions, good target product selectivity, high synthesis efficiency, convenience in post-treatment and the like, and has industrial application prospects.

This invention discloses a method for synthesizing an intermediate of retinoic acid, relating to the field of pharmaceutical organic synthesis technology, comprising the following steps: S1, in the presence of a base, 2-amino-3-chloropyridine and 4-bromopiperidine undergo a nucleophilic substitution reaction in solvent A to prepare compound III; S2, in the presence of a catalyst and ammonia solution, compound III undergoes an amination reaction in solvent B to prepare compound II; S3, compound II is dissolved in solvent C, and sequentially undergoes CDI cyclization and hydrogen chloride solution salt formation to prepare compound I, namely 1-(piperidin-4-yl)-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one. This invention is low-cost, uses mild reaction conditions, has a simple synthesis process, high yield, and eliminates the need for expensive and potentially unsafe excipients, effectively improving reaction safety, being environmentally friendly, and suitable for industrial production.

The application discloses a new preparation method of an intermediate of imatinib, and relates to the technical fields of medicines and chemical industry. The intermediate of imatinib, i.e. a-amino-2-methoxy-4-methanesulfonamido-5-phenoxyphenylacetophenone, is synthesized by taking 3-methanesulfonamido-4-phenoxyanisole and chloroacetyl chloride as raw materials, perfluoro-tert-butyl alcohol as a solvent, and D72 strong-acid macroporous resin as a catalyst, and then reacting with ammonia after a-chloro-2-methoxy-4-methanesulfonamido-5-phenoxyphenylacetophenone is synthesized. The application greatly improves the yield and purity, overcomes the shortcomings of the prior art in safety production, environmental protection and clean production, has a simple route, high reaction safety, convenient post-treatment, and effectively reduces the production cost, and is suitable for large-scale production.

The present application relates to automatic winding technical field, especially in kind of automatic winding machine, winding method and stator, it includes; base, winding mechanism and hooking mechanism, winding mechanism activity sets up on base, winding mechanism contains placement tool and winding disc, the outer diameter of winding disc is greater than the outer diameter of placement tool, hooking mechanism activity sets up on base, and is located in winding mechanism one side, hooking mechanism can extend into winding mechanism;By this, through increasing the diameter of winding disc, the distance of winding column to stator core in placement tool is extended, the number of winding turns of lead-out wire on winding disc is reduced, the lead-out wire on winding disc tends to be regular, so that the technical effect of facilitating subsequent operation is achieved;At the same time, cooperate with hooking mechanism, can independently select same side winding method or different side winding method, not only reduces the production cost, and improves production efficiency.

The application discloses a synthesis method and application of an indole alkaloid derivative. The method uses 5-aminoindole or 6-aminoindole as a substrate, reacts with acyl chloride or carboxylic acid to obtain an intermediate, and then reacts with Hydroxyclavatol to obtain a Penindolone (PND) derivative of the application. The method has the advantages of easy availability of raw materials, short reaction time, few steps involved, simple post-treatment and the like. The indole alkaloid PND derivative prepared by the method has good anti-influenza virus activity and wide application prospect.

This invention provides an ionic liquid flame retardant, an epoxy resin composite material, its preparation method, and its application. The preparation method of the ionic liquid flame retardant includes the following steps: S1. Adding a solvent, an acid-binding agent, and pentaerythritol phosphate to a reaction vessel, then adding an alkyl sulfonyl chloride compound dropwise for reaction. After the reaction, the mixture is separated and purified to obtain the intermediate PEPA-Ps; S2. Dissolving the intermediate PEPA-Ps with an amino-containing heterocyclic compound in an organic solvent and reacting. After the reaction, the mixture is separated and purified to obtain the ionic liquid flame retardant. This invention introduces amino, sulfonyl chloride, and pentaerythritol phosphate groups into an ionic liquid to construct a phosphorus-nitrogen-sulfur ternary synergistic flame retardant system. The obtained amino-containing ionic liquid flame retardant can participate in the curing reaction of epoxy resin, significantly improving the flame retardant performance of epoxy resin composite materials while effectively improving their tensile, flexural, and impact strength and other mechanical properties.

The utility model provides a kind of high concentration metal wastewater treatment system, comprising: wastewater pool, for storing high concentration metal wastewater;Adjustment pool, water is communicated between the wastewater pool by pipeline, for the PH value adjustment of high concentration metal wastewater, forms acidic first intermediate wastewater;Micro electrolytic cell, water is communicated between the adjustment pool by pipeline, for the micro electrolysis of first intermediate wastewater, forms second intermediate wastewater;Chemical oxidation pool, water is communicated with the micro electrolytic cell by pipeline, for the oxidation decomposition of second intermediate wastewater, forms third intermediate wastewater;Sedimentation tank, water is communicated between the chemical oxidation pool by pipeline, for the sedimentation treatment of third intermediate wastewater, forms fourth intermediate wastewater;Chlorination tank, water is communicated with the sedimentation tank by pipeline, for the fold point chlorination treatment of fourth intermediate wastewater;Clean water pool, for the storage of clean water after processing is completed.The high concentration metal wastewater treatment system in the scheme can effectively treat high concentration metal wastewater.

The invention belongs to the technical field of organic synthesis, and discloses a preparation method of alkane diol random polyether. The preparation method comprises the following steps: adding an initiator alkane diol, a main catalyst and a cocatalyst into a reaction kettle, adding ethylene oxide and epoxypropane, controlling the feeding time to be 4-8 hours, controlling the feeding rate of the ethylene oxide to be linearly increased to 40-65 g / 10 min from 10-30 g / 10 min, and controlling the feeding rate of the epoxypropane to be linearly reduced to 10-30 g / 10 min from 40-65 g / 10 min. According to the preparation method provided by the invention, ethylene oxide and propylene oxide are taken as comonomers, and the random copolyether with uniformly distributed molecular chain sequences is prepared in a compound base catalysis system through a special feeding mode. The random copolyether is high in random degree, low in surface tension, high in emulsion stability and narrow in molecular weight distribution; and the preparation method can follow the post-treatment method of the traditional alkali catalysis process, and has the advantages of simple process and low cost.

The application belongs to the field of medicine synthesis, and particularly relates to a daunorubicin intermediate compound. The daunorubicin is synthesized by taking 2,5-dihydroxybenzyl alcohol as raw material, the route has low raw material cost, mild reaction condition, convenient post-treatment, high total yield, and good industrial application prospect.

This invention discloses a one-pot method for preparing amidine-lanthanum complexes. Specifically, the lanthanum salt first reacts with an ether compound; the product, without separation, is then directly reacted with an N,N'-dialkyl-substituted amidine alkali metal salt to prepare the amidine-lanthanum complex in a one-pot process. The reaction yield can reach up to 90%, and the product purity is >98%. This invention features readily available raw materials, simple operation, mild reaction conditions, good selectivity for the target product, high synthesis efficiency, and convenient post-processing, making it promising for industrial applications.

The application belongs to the field of biological medicine, and discloses a 2-methyl quinoline derivative with a structure as shown in formula I, R is selected from substituted phenyl as shown in the formula, n is an integer of 1-5, R1 is selected from C1-C3 alkyl, halogen-substituted C1-C3 alkyl, C1-C3 alkoxy, halogen-substituted C1-C3 alkoxy, 3,4-methylenedioxy, phenyl and -NR3R4; R3 and R4 are independently selected from H and C1-C3 alkyl; however, the substituted phenyl does not include p-methoxyphenyl and 3-amino-4-methoxyphenyl; X is selected from C and N, and R2 is selected from H and C1-C3 alkyl, but X cannot be selected from C and R2 cannot be selected from H at the same time. The 2-methyl quinoline derivative has good antitumor activity, and the toxicity to human normal cells is weaker than the toxicity to cancer cells. The application discloses application of the 2-methyl quinoline derivative in preparation of an antitumor drug.

The application discloses a kind of distiller's grains biomass-based modified adsorption hydrogel and its preparation and application.It includes the following steps: step one: take non-water soluble distiller's grains organic matter;Step two: the non-water soluble distiller's grains organic matter is dissolved, and organic matter solution is obtained;Step three: modifier is added to organic matter solution, and mixed liquor is obtained;Step four: gel component is added to mixed liquor, and initiator, crosslinking agent and plasticizer are further added, and gel crude product is obtained;Step five: gel crude product of step four is placed in refrigerator freezing, and after taking out, it is thawed at room temperature, and gel is obtained;Step six: the gel of step five is soaked in ethanol, then the surface residual uncrosslinked component is rinsed with water, and surface moisture is absorbed, and final product is obtained.The hydrogel material has the characteristics of simple preparation process, low cost, biodegradable, strong heavy metal adsorption capacity, good cycle stability, and waste utilization of distiller's grains, which to some extent alleviates the problem caused by inventory distiller's grains.

The present application relates to a kind of selective deoxidation chlorination method of alcohol compound, belong to the technical field of organic synthesis.The method uses the solid chlorinating agent shown in structural formula (I), under the joint action of organic solvent and base, it is reacted under mild conditions at 0-50 ℃, at least one hydroxyl group in alcohol compound can be converted into chlorine atom with high efficiency and high selectivity.The stability of the used chlorinating agent is good, and the safety is high, and it is convenient to store and transport, which overcomes the use limitation of traditional chlorine, sulfonyl chloride and other high-risk reagents.The method is suitable for primary, secondary and tertiary hydroxyl groups, has the advantages of short reaction time, simple operation and wide substrate applicability, and the obtained chlorinated product can be used as an important pharmaceutical and chemical intermediate.The present application effectively solves the problems of existing chlorination method, such as high toxicity, low selectivity and harsh reaction conditions, and has good application prospect.

The utility model discloses a mould for producing a handle product, which comprises a mould main body, an upper mould pressing piece and a lower mould pressing piece, and the external cutting mechanism is arranged at the lower end of the upper die pressing piece and used for automatic edge cutting, the external cutting mechanism comprises a telescopic column, the lower end of the telescopic column is connected with a cutter, and the outer side of the telescopic column is sleeved with an elastic piece. According to the mold for producing the handle product, the ejection mechanism is mounted in the mold main body, so that a worker is assisted to save the demolding efficiency.

The present application relates to the technical fields of compound synthesis and catalysis, and particularly relates to a precursor compound for preparing a ruthenium catalyst with an oxygen-locked chain type semi-sandwich structure, an intermediate and a preparation method thereof, the precursor compound has the following general formula: wherein R1 is a p-toluenesulfonyl group or a methanesulfonyl group. The synthesis path of the precursor compound is shown as follows: The present application also provides application of the precursor compound in preparation of a key intermediate of a ruthenium catalyst. The method has mild reaction conditions (0-50 DEG C), simple operation, high yield, and the raw materials are easy to obtain, and the purification process is simple, and is suitable for industrialized production.

The application belongs to the technical field of organic synthesis catalysts, and discloses a cocatalyst for synthesizing methyl chlorosilane and a preparation method thereof. The cocatalyst is obtained by mixing and ball milling chelated tin powder and copper-aluminum-tin alloy powder, and the element ratio is as follows: copper 20-22 parts, aluminum 29-31 parts, tin 11-14 parts, and phosphorus 0.8-1 part. In the reaction of synthesizing methyl chlorosilane, the cocatalyst can play a synergistic role with the main catalyst, and can improve the reaction rate and yield. By using the cocatalyst, specific reactions can be selectively catalyzed, the occurrence of side reactions can be reduced, and the selectivity of dimethyl can be effectively improved.

The invention belongs to the technical field of building materials, and provides an early-strength functional monomer, an early-strength polycarboxylic acid water reducing agent and application of the early-strength functional monomer and the early-strength polycarboxylic acid water reducing agent. The chemical structural formula of the early strength functional monomer is as shown in formula (I). The preparation method of the early-strength polycarboxylate superplasticizer comprises the step of carrying out free radical polymerization reaction on an unsaturated polyether macromonomer, an early-strength functional monomer as shown in the formula (I), unsaturated carboxylic acid and a polysaccharide-based graft copolymer to obtain the early-strength polycarboxylate superplasticizer. The early strength functional monomer provided by the invention is obtained by reacting N-(beta-aminoethyl)-alpha-aminopropyltrimethoxysilane and an acrylic monomer, the raw materials are easy to obtain, the cost is low, the early strength functional monomer can be prepared only by one-step reaction, the synthesis process is simple, the post-treatment is convenient, the reaction condition is mild, and the early strength functional monomer can be applied to the polycarboxylate superplasticizer, so that the early strength functional monomer has a good application prospect. The polycarboxylate superplasticizer can generate a synergistic effect with the unsaturated polyether macromonomer, unsaturated carboxylic acid and the polysaccharide-based graft copolymer, so that the polycarboxylate superplasticizer has excellent early strength effect and binding material environmental adaptability. Formula (I).

The utility model provides an RFID (radio frequency identification) tag recovery device, belongs to the technical field of tags, and solves the technical problems that tags cannot be quickly classified, so that manual intervention is possibly needed to classify and process the tags in the recovery process, the labor cost is increased, and errors and inconsistency are possibly caused. An RFID tag recycling device comprises a shell, a recycling bin and a smashing bin are formed in the top of the shell, one side of the bottom of the recycling bin and one side of the bottom of the smashing bin are both slidably connected with collecting boxes, the surface of the side, close to a conveying belt, of the shell is fixedly connected with two air nozzles, the two air nozzles are both matched with the conveying belt, and one side of each bin baffle is provided with a bin door. And closing mechanisms used for closing the bin doors are arranged on one sides of the two bin doors, and a card reader is fixedly connected to the interior of the side, close to the conveying belt, of the shell. According to the utility model, through the arrangement of the air tap, the labels can be quickly classified.

The present disclosure relates to an electrocatalytic process for the preparation of N-halo primary amides and uses thereof, in particular in the preparation of isocyanates. The process comprises the conversion of a primary amide of formula I to an N-halo primary amide of formula II in the presence of an electrolyte and an electrocatalyst in a divided electrolytic cell as shown in reaction (1): wherein R1 represents hydrogen or any organic group; X represents a halogen; n is a positive integer selected from >1.

This utility model belongs to the field of fixture technology and relates to a fixture for producing clutch gear parts. It includes a support plate, a support base fixedly mounted on the bottom of the support plate, a turntable rotatably mounted in the center of the support base, and four sliders horizontally slidably mounted on the support base. The four sliders are arranged in a circular array about the turntable, and each slider is hinged to the turntable by an arc-shaped connecting rod. A clamping block is fixedly mounted on the top of each slider and slidably mounted on the top surface of the support plate. The advantages of this utility model are: after the gear is fitted onto the positioning block, the rotation of the turntable causes the connecting rod to pull the four clamping blocks to slide towards each other. When a clamping block contacts the gear, it pushes the gear to move until all clamping blocks clamp and fix the same gear. This automatically aligns the gear center during clamping, accurately positioning the gear and facilitating subsequent processing.

The application belongs to the field of medicine synthesis, and specifically provides a daunorubicin intermediate compound. The daunorubicin can be synthesized by pure chemical synthesis by using the intermediate compound. The daunorubicin is synthesized by taking 2,5-dihydroxybenzyl alcohol as a raw material. The route has low raw material cost, mild reaction condition, convenient post-treatment, high total yield, and good industrial application prospect.

The application discloses a kind of methods for the depth separation of indium, belong to nonferrous metallurgy technical field.The method for the depth separation of indium of the application, in view of the problems such as low efficiency of indium separation and extraction in strong acidic, multi-ion coexisting system, poor selectivity and insufficient stability of traditional adsorption material, based on the specific coordination chemical behavior of indium, design and synthesize the organic building unit of indium selectivity, and construct the covalent organic framework material with high crystallinity and high specific surface area by reversible covalent bond self-assembly.Relying on the functional groups uniformly distributed in ordered pore, the material has high-density active sites, excellent chemical stability and multi-level pore structure characteristics, can produce specific recognition and strong coordination effect on indium ions, realize efficient, depth separation and recovery of indium ions under the condition of strong acidity, multi coexisting ions.

The application discloses a preparation method of 2-hydrocarbon-3-iodine chromone compounds and belongs to the field of organic synthesis. The preparation method comprises the following steps: taking o-hydroxyphenyl propargyl ketone compounds and iodine reagent as starting materials, and performing a tandem cyclization reaction in the presence of halosilane and a solvent to obtain the 2-hydrocarbon-3-iodine chromone compounds. The substrate of the preparation method has a wide application range and can be used for synthesizing compounds with different molecular structures. The reaction of the preparation method is mild, the atomic economy is good, the product post-treatment is simple, and the yield is high, so that the industrialized production and application of the compounds are facilitated.

The invention belongs to the technical field of mineral processing and beneficiation reagents, and particularly relates to a double-phenyl-bridged dihydroximic acid flotation collecting agent and a preparation method and application of the double-phenyl-bridged dihydroximic acid flotation collecting agent. The general chemical formula of the biphenyl bridged dihydroximic acid flotation collecting agent is HO-NHC (= O)-Ar-O-R-O-Ar-C (= O)-NHOH; wherein Ar is an aromatic ring group of which the ortho-position is provided with carboxyl or carboxylic ester group; and R is alkylene with 1-8 carbon atoms. The collecting agent with the double-benzene-ring double-hydroximic-acid structure is expected to have higher selectivity, more stable chelation capacity and higher hydrophobicity at the same time, so that the collecting agent shows excellent collecting effect and separation efficiency in the flotation process, and the defects that an existing hydroximic acid agent is insufficient in selectivity, poor in hydrophobicity and the like are effectively overcome.

This invention discloses a modified organic black dye and its preparation method, relating to the field of dye modification technology. The preparation method includes the following steps: (1) chemically modifying the organic black dye with a linker to obtain a modified black dye; (2) preparing polymer microspheres using a soap-free emulsion polymerization method; (3) chemically bonding the modified black dye obtained in step (1) with the polymer microspheres obtained in step (2) to obtain a spherical modified organic black dye. The preparation method of this invention combines the organic black dye with polymer microspheres through chemical bonds to form a spherical dye, improving the dye morphology and enhancing its flowability and dispersion uniformity. Furthermore, the polymer microspheres prepared using the soap-free emulsion polymerization technology of this invention have controllable particle size and good monodispersity, resulting in uniform particle size of the final dye particles, making them suitable for applications with strict particle size requirements.

The application discloses a synthesis method of xylulose-5-phosphate. The method takes a commercially available compound 1 as a starting material, and obtains the target product xylulose-5-phosphate through seven independent step-by-step reactions. The intermediates are compound 2 to compound 7 in turn. The synthesis method provided by the application is a step-by-step reaction, each reaction is an independent unit, the process parameters are accurately controllable and suitable for industrial operation errors, the side reactions are few, and the product selectivity is high. The method innovatively uses tetrabenzyl pyrophosphate as a phosphorylation reagent, replaces expensive reagents, and reduces the synthesis cost. The reaction condition of the method is mild, the operation is convenient, the crude compound 2 and the crude compound 4 can be directly used in the next step reaction, the post-treatment process is simple, and the route is simple and easy to be industrialized. The synthesis method of xylulose-5-phosphate has stable yield and accurate product structure, is suitable for large-scale industrialized preparation of xylulose-5-phosphate, and can effectively meet the market demand in the field of biological medicines.