47 results about "Cyanogen" patented technology

The utility model provides a biomass methanol sewage treatment device which comprises the following steps: S1, gasification wastewater, ground flushing water, methanol rectification wastewater, test wastewater and domestic sewage are generated in a biomass methanol production process; carrying out oil removal, two-stage air flotation reaction, deamination reaction, coagulation cyanogen breaking and Fenton pre-oxidation treatment on the gasified wastewater to obtain pretreated gasified wastewater; s2, performing comprehensive treatment on the ground flushing water, the methanol rectification wastewater, the test wastewater, the domestic sewage and the pretreated gasification wastewater. The biomass methanol wastewater treatment system has the beneficial effects that the high-concentration gasified wastewater is pretreated by adopting classified and quality-divided treatment, the pretreated wastewater is biodegradable wastewater, and a comprehensive treatment process which mainly adopts biochemical treatment and is high-grade oxidation security is adopted, so that the treatment cost of the biomass methanol wastewater is reduced, and the effluent is ensured to reach the emission standard of pollutants in the petrochemical industry.

The application discloses the use of carbon cyanogen - 4 trifluoromethoxy benzyl hydrazone in the prevention and treatment of candida infection, belonging to the technical field of candida infection prevention and treatment. Carbon cyanogen - 4 trifluoromethoxy benzyl hydrazone is used as the only active ingredient for preparing a medicine for preventing or treating diseases caused by candida infection, wherein the candida is candida albicans and / or candida auris; or it is used for preparing a bacteriostatic and / or bactericidal product of candida, wherein the candida is candida albicans and / or candida auris. FCCP shows good inhibition of strain growth, good inhibition of biofilm effect and good mitochondria breaking effect in the antibacterial experiments of various candida (wild type candida albicans, drug resistant candida albicans and drug resistant candida auris). Thus, a new treatment drug for candida albicans and candida auris infection is provided.

The invention relates to the field of polyacrylate photoresists, in particular to a photoresist film-forming resin raw material and a preparation method thereof.The preparation method comprises the steps that cyclopentadiene is dropwise added into a mixed solution of alpha-bromomethyl acrylate and a solvent, the temperature is controlled, a reaction is conducted for 4 h, and 5-bromodicyclohept-2-ene-5-carboxylic acid methyl ester is prepared; the preparation method comprises the following steps: adding alkali into 5-bromo dicycloheptyl-2-ene-5-carboxylic acid methyl ester, and hydrolyzing at 20-30 DEG C for 2 hours to obtain a hydrolysis product; the hydrolysis product is subjected to epoxidation and hydrolysis with hydrogen peroxide under the condition of glacial acetic acid, and 1-bromine-5-hydroxy-3-oxa-tricyclic nonyl-2-ketone is obtained; according to the method, 1-bromo-5-hydroxy-3-oxa-tricyclic nonyl-2-ketone is cyanided by cuprous cyanide to prepare the 1-cyano-5-hydroxy-3-oxa-tricyclic nonyl-2-ketone monomer, and the method has the advantages that the raw materials are convenient and easy to obtain, the route is short, the reaction conditions are relatively mild, the operation safety is relatively high, the total yield is remarkably improved, and the like.

The invention discloses a natural ventilation cooling tower inner wall corrosion prevention method adaptive to an extreme temperature difference environment, and belongs to the technical field of cooling tower corrosion prevention. Comprising the steps that leakage treatment is conducted, specifically, according to cracks, honeycomb-shaped defects and holes in the inner wall of the cooling tower, drilling is conducted by adopting drilling parameters matched with the extreme temperature difference, after a grouting water stop needle is embedded, a corresponding grouting material is injected according to the dry and wet state of a leakage part, after grouting is completed, preset time is observed, and after it is confirmed that no leakage exists, the grouting needle is cut off, and a needle hole is plugged; the exposed ribs on the inner wall of the cooling tower are subjected to rust removal, a cracked and warped concrete protection layer and loose concrete are chiseled away, the concrete missing position is repaired with anti-crack mortar, and the water content of the inner wall is controlled to be smaller than or equal to 8% by flushing a cylinder body for standby application; and anti-corrosion coating is conducted, specifically, the surface of the treated base layer is sequentially coated with cyanogen setting permeable seal primer, cyanogen setting intermediate paint and cyanogen setting waterproof and anti-corrosion finish paint.

The invention belongs to the technical field of organic electroluminescent materials, and provides an electron transport material for an organic electroluminescent device and a preparation method of the electron transport material. The 9-alkyl-9-cyanogen-substituted aryl (or cyanogen-substituted nitrogen-containing heteroaryl) fluorene group with a substituent group enables the molecular structure to be twisted and the intermolecular interaction force to be weakened, cyanogen and pyridine enable the compound to have the electron-withdrawing property, electron transmission is facilitated, compounding of electrons and holes in a light-emitting layer is enhanced, and the light-emitting efficiency is improved. Aryl bridged triazine and pyrimidine six-membered nitrogen heterocycle are used for further improving the transmission performance of electrons, and as an electron transmission layer material of the organic electroluminescent device, the organic electroluminescent device has the characteristics of low driving voltage, high luminous efficiency and long service life.

The utility model discloses a small-diameter cyanuric chloride material pipe, which relates to the technical field of cyanuric chloride production and comprises a material pipe, sealing end plates are arranged at the left end and the right end of the outer surface of the material pipe, and a heat conduction oil pipe is arranged between the two sealing end plates. The outer edges of the two sealing end plates extend out of the heat conduction oil pipe to be provided with connecting edges, limiting end plates are arranged on the outer sides of the outer surfaces of the two sealing end plates, and a heat preservation pipe is arranged between the outer edges of the two limiting end plates. A heat preservation material is arranged between the heat preservation pipe and the heat conduction oil pipe and between the two limiting end plates, a punching partition plate is arranged in the middle of the front side and the rear side between the material pipe and the heat conduction oil pipe, the flow speed of a solution in the pipeline is increased, the temperature of the material pipe is increased, and the temperature of cyanuric chloride materials in the material pipe is increased; the crystallization of cyanuric chloride in the material pipe due to the characteristics of cyanuric chloride is reduced, and the blockage condition of the material pipe is reduced.

The invention relates to the technical field of cyanogen-containing wastewater treatment, and discloses a treatment device for extracting cyanogen-containing wastewater from gold ores, which comprises a treatment box, and also comprises a partition plate fixedly connected to the interior of the treatment box; the mixing mechanism is arranged between the partition plate and the bottom of the treatment box and is used for mixing wastewater between the partition plate and the bottom of the treatment box; the groove is formed in the top of the partition plate, and positioning mechanisms are symmetrically arranged on the side, close to the groove, of the partition plate; the inclined plate is rotationally connected to the top of the partition plate, a sealing assembly is arranged at the end of the inclined plate, an auxiliary shaft is rotationally connected to the inclined plate, and a stirring wheel and an aeration disc are fixedly connected to the auxiliary shaft and used for mixing wastewater between the top of the inclined plate and the treatment box; integrated treatment of wastewater pretreatment, sedimentation and cyanide breaking treatment can be achieved, the occupied space of equipment is small, the energy consumption is small, the wastewater mixing effect is good, and the wastewater treatment efficiency is high.

The application belongs to the technical field of pharmaceutical chemistry synthesis, and particularly relates to a synthesis method of a fluorofelarana intermediate 2-methyl-4-acetylbenzoic acid. In the application, o-chlorotoluene and acetyl chloride are reacted under the action of anhydrous aluminum chloride to generate 4-chloro-3-methylacetophenone; the 4-chloro-3-methylacetophenone and acetonitrile are catalyzed by Ni to generate 4-acetyl-2-methylbenzonitrile; and then the 4-acetyl-2-methylbenzonitrile is hydrolyzed to generate 2-methyl-4-acetylbenzoic acid. The application has the beneficial effect that acetonitrile is used as a cyanogen to replace halogen, and a highly toxic cyanide is abandoned, so that the whole process is safer and more environmentally friendly, the production of three wastes is reduced, and the synthesis cost of 2-methyl-4-acetylbenzoic acid is greatly reduced.

The invention discloses a synthesis method of limidoterol, and belongs to the technical field of medicine synthesis. The method comprises the following steps: coupling cyclobutanone oxime and a caffeic acid derivative under the catalysis of ferrous acetylacetonate, a chlorobenzene solvent and the protection of nitrogen to obtain a decarboxylated cyanogen alkylation intermediate; oxidizing the intermediate with m-chloroperoxybenzoic acid in dichloromethane in the presence of sodium carbonate to obtain a vicinal diol monoester intermediate; catalyzing by cobalt chloride in methanol, reducing by sodium borohydride, and protecting by Boc2O to obtain a cyclized precursor; cyclizing the precursor in tetrahydrofuran by using sodium hydride to obtain a cyclized intermediate; and performing deprotection to obtain the limiterol. According to the method, dangerous reagents and processes are not used, the safety is high, and no heavy metal residues exist; the cost is low, precious metals are not needed, the post-treatment operation is simple and convenient, a complex purification process is not needed, and the total yield reaches 21%; process conditions are mild, normal pressure and conventional heating modes are adopted, and industrial production is easy to realize.

The invention discloses a preparation method of a pure iodine broadband gap perovskite solar cell based on difluorophthalonitrile passivation, and relates to the technical field of solar cells. According to the cell, the surface of perovskite is treated through difluorophthalonitrile, on one hand, fluorine atoms and cyano groups have strong electronegativity, so that the center of a benzene ring is positively charged, charged iodine defects can be attracted through anion-pi interaction, further diffusion of the iodine defects is prevented, and ion migration is inhibited; on the other hand, fluorine atoms can interact with hydrogen atoms on organic cations in perovskite through hydrogen bonds, organic components are stabilized, and volatilization or decomposition of the organic components is inhibited. And fluorine can also form a hydrophobic protection layer on the surface of the perovskite, so that the environmental stability of the perovskite cell is improved. On the basis, the surface and interface defects of the perovskite are obviously reduced, and ion migration and non-radiative recombination are inhibited, so that the photoelectric conversion efficiency of the perovskite solar cell is improved, and the hysteresis effect of the device is reduced.

The application discloses a preparation method of cyanogroup / amidogroup dual-group modified carbon nitride photocatalytic material, and specifically comprises the following process: using original g-C3N4 obtained by heat polymerization of melamine as a starting material, using ionothermal reaction of a molten salt containing ammonium chloride to prepare a crystalline g-C3N4 photocatalyst with cyanogroup, and then using the characteristic that the cyanogroup can be hydrolyzed into amidogroup under acidic conditions, and treating the cyanogroup and amidogroup dual-group modified g-C3N4 photocatalytic material with a hydrochloric acid solution. The application solves the problems of low crystallinity, high photo-generated carrier recombination rate and poor solar light absorption and utilization rate of traditional photocatalytic materials using graphite phase carbon nitride.

The utility model discloses a device of ammonia circulation absorption in hydrocyanic acid, including ammonia absorption tower, decyanation tower, deamination tower, ammonia water buffer jar, ammonia water storage jar that connect in proper order, ammonia absorption tower top is equipped with deamination synthesis gas export, and ammonia absorption tower bottom output is divided into two ways, one way connects ammonia absorption tower tower kettle circulating pump, ammonia absorption tower cooler, and the other way connects ammonia absorption tower tower kettle production pump, and decyanation tower top is equipped with cyanogen containing steam export, and decyanation tower bottom output is divided into two ways, one way connects decyanation tower tower kettle circulating pump, decyanation tower tower kettle reboiler, and the other way connects decyanation tower tower kettle production pump, and decyanation tower top is equipped with ammonia containing steam export, and deamination tower bottom output is divided into two ways, one way circularly connects deamination tower tower kettle circulating pump, deamination tower tower kettle reboiler, and the other way connects deamination tower tower kettle production pump, deamination tower tower kettle cooler, the device of the utility model has solved the problem of safety risk to the operator and the process in the production process of existing hydrocyanic acid using sulfuric acid to absorb ammonia.

The invention provides a method and system for removing high-concentration complex cyanogen in gold extraction wastewater, and relates to the technical field of sewage treatment.The method comprises the steps that the pH of the gold extraction wastewater is adjusted to 8-10, and pretreated wastewater is obtained; adding a cobalt ferrite particle catalyst into the pretreated wastewater, and introducing ozone to obtain oxidized effluent; dividing the oxidized effluent into a solution A and a solution B according to a volume ratio, oxidizing the solution A by using anaerobic ammonium oxidation bacteria under the condition of low dissolved oxygen, and mixing the oxidized solution A with the untreated solution B to obtain a mixed solution; enabling the mixed solution to react with anaerobic ammonium oxidation bacteria through a porous adsorption material, and recovering the cobalt ferrite particle catalyst for recycling. According to the method, the removal rate of the high-concentration complex cyanogen can be effectively increased, thorough mineralization of the complex cyanogen is achieved, and the core problem that the complex cyanogen is difficult to degrade is solved; and the method and the system have relatively high load resistance, are simple and convenient to operate and have good adaptability.

The utility model discloses a reaction device which comprises a waste water tank, the output end of the wastewater tank is connected with the cyanogen breaking kettle and is used for conveying cyanogen-containing waste liquid; a first pump body is arranged at the output end of the cyanogen breaking kettle, and the output end of the first pump body is connected with the top of the cyanogen breaking kettle and a neutralization kettle; a second pump body is arranged at the output end of the neutralization kettle, and the output end of the second pump body is connected with the top of the neutralization kettle and a saline water tank; the cyanogen breaking kettle, the neutralization kettle and the wastewater tank are matched for use, a first pump body and a second pump body are utilized for circulation in the cyanogen breaking and neutralization process, full reaction is achieved, the total cyanogen content of cyanogen-containing wastewater obtained through cyanidation synthesis of o-chlorobenzyl cyanide can be reduced to 20 mg / kg, and meanwhile the pH value of saline water is close to alkalescence.

The utility model relates to the technical field of industrial solid waste treatment, in particular to a cyanogen-containing tailing slag treatment device which comprises a base, a shell is arranged at the top of the base, a connecting cover is fixed to the top of the shell, and a sealing cover is hinged to the top of the connecting cover; a connecting hole is formed in the outer wall of the shell, an ozone pipe is installed in the connecting hole, an ozone hole is formed in the outer wall of the ozone pipe, a strip-shaped pipe is installed at one end of the ozone pipe, a connecting pipe is installed at one end of the strip-shaped pipe, and one end of the connecting pipe is connected with external ozone generating equipment. The hydraulic rod can be matched with the connecting lug to jack up the shell, so that the base is separated from the shell, the filler and the cyanogen-containing waste residues in the shell can directly overflow from the separation position of the base and the shell at the moment, the purpose of rapid discharging is achieved, and compared with the prior art, the device can rapidly discharge the filler and the cyanogen-containing waste residues from the interior of the shell and is convenient to use.

The invention relates to the technical field of fine chemical engineering, in particular to a continuous synthesis method of glufosinate ammonium, which comprises the following steps: A) mixing diethyl methylphosphonite, acrolein and acetic acid for condensation reaction to obtain a compound a-1; b) mixing the compound a-1 with water, and carrying out a first hydrolysis reaction under the action of a catalyst to obtain a first system; c) returning a part of the first system to the condensation reaction system in the step A), and respectively reacting ethanol and acetic acid with diethyl methylphosphonite and acrolein to generate a compound a; mixing the unreturned part in the first system with an acidic compound, and carrying out a second hydrolysis reaction to obtain a compound c; d) the compound c, an ammonia source and a cyanide source are subjected to a cyanamide reaction to obtain a compound d, the ammonia source is selected from ammonia water or a mixture of ammonia water and ammonium chloride, and the cyanide source is selected from sodium cyanide or hydrogen cyanide, and E) the compound d is subjected to a third hydrolysis reaction to generate glufosinate-ammonium.

A gas measuring device (100) measures cyanogen in the presence of hydrogen cyanide. The gas measuring device (100) includes a measuring chamber (101), a heating element (103, 203) and an electrochemical sensor (105, 200). The measuring chamber (101) is configured to receive a sample. The heating element (103) is configured to thermally decompose cyanogen contained in the sample into decomposition products. The sensor (105, 200) is configured to detect the decomposition products of cyanogen, which are obtained by the thermal decomposition. A process measures cyanogen in the presence of hydrogen cyanide.

The application belongs to the field of pharmaceutical chemistry, and specifically discloses a preparation method of 7-formyl-2,3-dihydrobenzofuran-4-carbonitrile, which comprises the following steps: coupling reaction of a compound shown in formula VI with cyanogen under the action of a palladium catalyst to generate a compound shown in formula VII. The method provided by the application is low in cost, good in safety, high in yield, and suitable for large-scale industrial production.

The invention discloses a hydrophobic cross-linking monomer and a preparation method thereof as well as plugging gel for well drilling and a preparation method thereof. The hydrophobic cross-linking monomer is synthesized by taking a naphthenic compound and an amino compound as raw materials in the presence of a solvent and a cyanation reagent; the plugging gel is obtained by polymerizing alkenyl amide, alkenyl carboxylic acid and a hydrophobic cross-linking monomer. According to the hydrophobic crosslinking monomer, the molecular rigidity and high-temperature stability are improved, the thermal motion degree of molecules under the high-temperature condition is reduced, and the hydrophobicity of plugging gel molecules is enhanced, so that a hydrophobic area is favorably formed in the gel, the affinity of gel molecular chains and water molecules is reduced, and then the water dilution resistance of the plugging gel is improved; the plugging gel has good water dilution resistance, the plugging success rate can be effectively increased, the product production process is simple, and industrial production is facilitated.

The invention relates to the technical field of cyanogen-containing gold tailings, in particular to a cyanogen-containing gold tailing cyanogen-breaking and heavy-metal-removing filling system which comprises a tailing cyanogen-breaking and heavy-metal-removing mechanism, and the tailing cyanogen-breaking and heavy-metal-removing mechanism comprises a cyanogen-containing gold tailing slurry storage tank, a cyanogen-breaking reaction tank, a heavy metal trapping reaction tank, a cyclone, a gold concentrate tank and a tailing tank; a discharge port of the cyanogen-containing gold tailing slurry storage tank is communicated with a feed port of the cyanogen breaking reaction tank, a discharge port of the cyanogen breaking reaction tank is communicated with a feed port of the heavy metal trapping reaction tank, a discharge port of the heavy metal trapping reaction tank is communicated with a feed port of the cyclone, and a discharge port of the cyclone is respectively communicated with a feed port of the gold concentrate tank and a feed port of the tailing tank; the filling mechanism comprises a deep-cone thickener, a cement bin, a stirring assembly, a filling trailer pump and a stope; a discharging port of the tailing pond is communicated with a feeding port of the deep-cone thickener, a discharging port of the deep-cone thickener and a discharging port of the cement bin are respectively communicated with a feeding port of the stirring assembly, a discharging port of the stirring assembly is communicated with a feeding port of the filling trailer pump, and a discharging port of the filling trailer pump is communicated with a stope.

The invention relates to the technical field of preparation of photocatalytic materials, in particular to a preparation method of a potassium ion and cyano group co-modified carbon-nitrogen polymerization photocatalytic material, which comprises the following steps: weighing melamine and potassium chloride in an agate mortar, fully grinding to obtain mixed white powder, putting the mixed white powder in an ark, putting the ark in a muffle furnace, and calcining at constant temperature to obtain the potassium ion and cyano group co-modified carbon-nitrogen polymerization photocatalytic material. A yellow KPCN powder sample is obtained; the yellow KPCN powder sample is repeatedly washed with deionized water and ethyl alcohol until the ion strength is smaller than 30 mol / L, washing is stopped, vacuum drying is conducted, and the KPCN catalyst is obtained.According to the method, potassium ions and cyano groups are modified in a carbon-nitrogen polymer material at the same time, the catalytic reaction kinetics is accelerated by reducing the electronic local state of a system and expanding the pi conjugated structure of the system, and meanwhile, the performance of the carbon-nitrogen polymer material is improved. The unique electron-withdrawing characteristic of cyano groups is utilized to adjust the charge distribution of the carbon-nitrogen polymer photocatalyst, and the photocatalytic CO2 conversion efficiency is improved.

The invention relates to the technical field related to food processing, in particular to a low-cyanogen-glycoside cassava tender stem and leaf pickled vegetable and a method thereof, and the method comprises the following steps: (1) raw material treatment: selecting cassava tender stems and leaves, cleaning and draining; (2) low-temperature dehydration: dehydrating the drained tender stems and leaves of the cassava at 30 DEG C for 1-2 hours; (3) pretreatment: chopping or mashing the dehydrated tender stems and leaves of cassava; (4) pickling and fermenting: adopting a low-salt pickle type cold pickling process, adding table salt accounting for 2-4% of the total mass of the cassava tender stems and leaves into the pretreated cassava tender stems and leaves, uniformly mixing, and fermenting at 20-25 DEG C for 10-15 days; and (5) packaging and storing: packaging after fermentation is completed, and storing under a cold storage condition. According to the low-cyanogen-glycoside cassava tender stem and leaf pickled vegetable, the dehydration temperature and time are controlled, and a low-salt fermentation pickling process is combined, so that the food safety is guaranteed, and meanwhile, the nutrition retention rate and the flavor quality of the product are remarkably improved.

The invention discloses a method for synchronously degrading antibiotics and aging plastics through a defective cyano-co-doped carbon nitride photocatalyst, which comprises the following steps: adding the defective cyano-co-doped carbon nitride photocatalyst into wastewater containing antibiotics and plastics, and reacting under an illumination condition, electrons provided by the antibiotics are used for accelerating generation of. O2 <->, so that plastic aging is accelerated, and synchronous degradation of the antibiotics and plastic aging are realized; wherein the defective cyano co-doped carbon nitride photocatalyst is obtained by taking trithiocyanuric acid as a precursor and calcining twice. Through synchronous treatment, the treatment efficiency can be remarkably improved, the treatment time and the treatment cost can be reduced, meanwhile, the problems of process complexity and secondary pollution caused by respective treatment are avoided, and the method has the characteristics of efficient active oxygen generation, remarkable improvement of the aging effect and the like, so that the method has remarkable application value in the field of antibiotic wastewater and plastic pollution treatment; a new technical approach is provided for solving the problem of complicated water body pollution.

The utility model provides a cyanide-containing sewage adsorption and purification device, which relates to the technical field of sewage treatment, and comprises a liquid inlet assembly communicated with a sewage outlet and used for controlling sewage liquid inlet flow; the plurality of adsorption assemblies are arranged on the liquid inlet assembly and are provided with adsorption cavities; the plurality of connecting pipes are arranged among the plurality of adsorption assemblies and are communicated with the adsorption cavity; the liquid outlet assembly is arranged at the ends, away from the liquid inlet assembly, of the multiple adsorption assemblies, and the controller is arranged on the liquid outlet assembly and electrically connected with the liquid outlet assembly and the liquid inlet assembly; the plurality of adsorption groups are combined to form a multi-stage adsorption cavity and perform multi-stage adsorption purification on cyanogen-containing sewage, the liquid outlet assembly monitors and discharges the sewage after adsorption purification and transmits a monitoring result to the controller, and the controller controls the liquid inlet assembly to adjust the inlet amount of the sewage according to the monitoring result. The cyanogen-containing waste liquid treatment device solves the problem that the cyanogen-containing waste liquid in the prior art can reach the discharge standard after being repeatedly and circularly adsorbed and filtered for multiple times.

The application is suitable for the technical field of pesticide detection, and provides a cyanogen-activated copper-based nanoenzyme array sensor and application thereof.The sensor comprises four independent sensing units, each of which is based on a copper-based nanoenzyme, and is arabinosyl cytosine-Cu, isophthalic acid-Cu, 5'-guanylate-Cu and thiazole-5-carboxylic acid-Cu respectively.The application selects four copper-based nanoenzymes as sensing pathways to construct a colorimetric pathway, which not only has extremely high selectivity, realizes rapid and convenient detection of second-generation pyrethroid pesticides, and does not need complex material design, and can realize on-site convenient detection of second-generation pyrethroid pesticides.

The application discloses an alkaloid compound and an extraction method and application thereof, and belongs to the technical field of alkaloid compounds. After crushing, the Evodia fruit is subjected to acid extraction and alkali precipitation treatment, ethyl acetate extraction, water washing and drying in sequence to obtain Evodia total alkaloids; the Evodia total alkaloids are subjected to ODS medium-pressure column chromatography, reverse-phase semi-preparative HPLC separation, cyanogen column HPLC primary purification and cyanogen column HPLC secondary purification in sequence to obtain the alkaloid compound. The alkaloid compound provided by the application is prepared from traditional Chinese medicine Evodia, has an inhibiting effect on the proliferation of a colorectal cancer cell line (HCT-116), and can be applied to the preparation of an anti-colorectal cancer tumor drug.

The present application relates to the field of medicine preparation, in particular to a synthesis method of atipamezole hydrochloride. The method comprises the following steps: 4-cyanomethyl imidazole is subjected to acylation reaction, and a secondary amine group at position 1 of 4-cyanomethyl imidazole is subjected to acetyl protection to generate compound II; the compound II is subjected to two alkylations in sequence, and the cyanogen of the reaction product after the alkylation is hydrolyzed into a carboxyl group to generate compound III; under the catalysis of a Lewis acid, the compound III is subjected to intramolecular Friedel-Crafts acylation to generate compound IV; the carbonyl group of the compound IV is reduced into a methylene group to obtain a target product compound V; the method has the advantages of short synthesis route, mild reaction condition, low equipment requirement, convenient operation, high yield of reaction product, high yield of product obtained without complex purification method, and the like, and is easy to realize large-scale industrial production.

The application discloses a chlorfenapyr hapten, an artificial antigen and a preparation method and application thereof, relates to a chlorfenapyr hapten, an artificial antigen, an antibody, a colloidal gold immunochromatography card and application of the chlorfenapyr hapten and the artificial antigen in preparation and detection of chlorfenapyr. The chlorfenapyr hapten prepared by the application retains cyanogen and halogen connected with a pyrrole ring of chlorfenapyr, and also retains three characteristic groups of 4-chlorophenyl; a coupling arm is designed to be a straight chain with an active group derived from a tertiary amine in the form of a quaternary amine salt, so that a small molecule structure of the artificial antigen prepared retains original characteristics of chlorfenapyr; the chlorfenapyr antibody of the application has high titer, an IC 50 value of 0.67 µg / L, a linear range of 0.1 µg / L to 8.1 µg / L, and a sensitivity of 3 µg / kg in a standard solution and a detection sensitivity of 5 µg / kg in a sample.

The invention discloses a glufosinate-ammonium hydrolysis low-boiling-point substance separation and recovery device and method, and the recovery device comprises a first rectifying tower, a cyanogen breaking reaction kettle, a second rectifying tower and a third rectifying tower, the first rectifying tower is provided with a first feed port suitable for introducing a hydrolyzed low-boiling-point substance, a first kettle bottom solution outlet suitable for extracting a first kettle bottom solution and a first distillate discharge port suitable for distilling out a first distillate; the cyanogen breaking reaction kettle is provided with a distillate feed port suitable for introducing condensed first distillate and a liquid discharge port suitable for outputting liquid subjected to cyanogen breaking treatment; the second rectifying tower is provided with a second feeding hole, an extracting agent inlet, a second distillate discharge hole and a second kettle bottom liquid outlet; the second feeding hole is suitable for introducing liquid subjected to cyanogen breaking treatment; the extracting agent inlet is suitable for introducing an extracting agent; the second distillate discharge hole is suitable for distilling a second distillate; the device can well recover ethanol and ethyl acetate respectively, improves the recovery rate, and is convenient to use.

The invention discloses a brightening and leveling intermediate for a cyanogen base copper plating solution and a synthesis process of the brightening and leveling intermediate, and relates to the technical field of electroplating additives, a two-component dynamic coordination self-adaptive system is adopted, the brightening and leveling intermediate comprises a film-forming agent MFP and a regulating agent DTC, the weight part of the film-forming agent MFP is 40-60 wt%, the weight part of the regulating agent DTC is 10-20 wt%, and the weight ratio of the film-forming agent MFP to the regulating agent DTC is (3-4): 1. An active film forming mechanism is innovated, the limitation of traditional passive adsorption is broken through, the super-leveling effect is achieved, the leveling rate exceeds 90%, and a plating layer shows uniform mirror surface brightness. The additive adapts to a current density range of 1-6A / dm, can still keep excellent brightness in a low current region, and effectively solves the problem of poor current adaptability of a traditional additive. The coating is small in internal stress and excellent in toughness, has no obvious defects through a bending test and a thermal shock test, and meets the requirements of high-end scenes on the mechanical properties of the coating.