45 results about "Triethylamine hydrochloride" patented technology

The invention relates to a continuous production method of high-purity tetraethoxysilane, and belongs to the technical field of tetraethoxysilane preparation. The method comprises a raw material pretreatment stage and a purification and rectification stage: in the pretreatment stage, silicon tetrachloride and ethanol are subjected to an esterification reaction in a molar ratio of 1: (3-4) under the protection of nitrogen, the pH is adjusted to be neutral through triethylamine, and triethylamine hydrochloride is removed through reduced pressure distillation; then, a cerium oxide-molecular sieve composite adsorbent with the specific surface area larger than or equal to 800 m / g and the pore diameter of 2-5 nm is adopted for dehydration under the pressure of 0.8-1.2 MPa till the water content is smaller than or equal to 5 ppm, and volatile impurities are removed through high-purity nitrogen purging; in the purification stage, metal ions and Cl are synergistically removed through a titanate modified resin layer and a nano TiOtube layer, and then step-by-step separation is performed through a four-stage differential pressure rectifying tower. Through collaborative optimization of structural design of the composite adsorbent, construction of an organic-inorganic hybrid interface of the resin layer and pressure gradient rectification, 72-hour continuous production is achieved, the single-pass yield of the product is 92%, and the total amount of metal impurities is smaller than or equal to 5 ppb.

The invention discloses a flexible lanthanum zirconate-alumina fiber membrane as well as a preparation method and application thereof, and belongs to the technical field of inorganic nonmetal ceramic fiber materials. The preparation method comprises the following steps: dissolving zirconium oxychloride octahydrate, lanthanum chloride heptahydrate and aluminum chloride hexahydrate into absolute methanol, sequentially adding acetylacetone and triethylamine, stirring, and drying under reduced pressure to obtain a zirconium-lanthanum-aluminum polymer precursor containing triethylamine hydrochloride; soaking the zirconium-lanthanum-aluminum polymer precursor containing triethylamine hydrochloride in acetone, standing, filtering, concentrating under reduced pressure, and drying to obtain a zirconium-lanthanum-aluminum acetylacetone polymer precursor; the preparation method comprises the following steps: preparing a spinning solution from a zirconium-lanthanum-aluminum acetylacetone polymer precursor, absolute methanol serving as a solvent and polyoxyethylene serving as a spinning aid, and carrying out electrostatic spinning on the spinning solution to obtain a lanthanum zirconate-aluminum oxide precursor fiber membrane; and performing heat treatment on the lanthanum zirconate-aluminum oxide precursor fiber membrane to obtain the flexible lanthanum zirconate-aluminum oxide fiber membrane. According to the preparation method, acetylacetone is added into zirconium oxychloride, lanthanum chloride and aluminum chloride for coordination to form a linear zirconium-lanthanum-aluminum acetylacetone polymer, so that the technical problem that lanthanum zirconate long fibers with high strength and good flexibility are difficult to obtain is solved.

The invention discloses a ruthenium-nickel-based bifunctional self-supporting electrode and a preparation method and application thereof.The preparation method comprises the steps that nickel chloride hexahydrate, ruthenium chloride, terephthalic acid and triethylamine hydrochloride serve as solutes, N-dimethylformamide serves as a solvent, and a deposition electrolyte is prepared; the pretreated foamed nickel is immersed in the electrolyte to serve as a working electrode, a platinum net is selected as a counter electrode, an Ag / AgCl electrode is adopted as a reference electrode, and current of-10 mA to-20 mA is applied for deposition; and washing the loaded foamed nickel with DMF (Dimethyl Formamide), ultrapure water and ethanol after electro-deposition, and carrying out vacuum drying to obtain the ruthenium-nickel-based difunctional self-supporting electrode. The ruthenium-nickel-based self-supporting bifunctional electrocatalyst provided by the invention can be used for water decomposition reaction, has good HER activity and OER activity, and can achieve very large hydrogen evolution and oxygen evolution current density under relatively low overpotential.

The invention discloses a synthesis method of glyphosate. The synthesis method comprises the following steps: carrying out a depolymerization reaction on paraformaldehyde, formaldehyde and a catalyst in methanol to obtain a depolymerization solution; adding glycine, methanol and triethylamine into the depolymerization liquid for catalytic reaction to obtain addition liquid; dimethyl phosphite is added into the addition liquid, triethylamine is supplemented, and a condensation liquid is obtained through a reaction; adding the condensation liquid into a supercritical extraction kettle, and extracting methanol and triethylamine hydrochloride; and adding hydrochloric acid into the extracted condensation liquid for acidolysis to remove chloromethane, hydrogen chloride, water or other light components, adding alkali to adjust pH, crystallizing, filtering and drying to obtain glyphosate. According to the method, a typical glycine method production process is improved, methanol, triethylamine hydrochloride and water in condensation reaction liquid can be quickly removed at low temperature by adopting a supercritical extraction technology, acidolysis energy consumption and hydrochloric acid consumption are reduced, a removed triethylamine and methanol mixed solution is recycled, and the yield of the product is improved. And the effects of recycling resources and reducing energy consumption are achieved. Meanwhile, the catalyst B is added, so that free aldehyde in a reaction system can be eliminated, side reactions are reduced, and the quality of the glyphosate active compound is improved.

The invention provides a preparation method of diphenyl ethyoxyl phosphine and a product thereof. Taking diphenyl phosphonium chloride and absolute ethyl alcohol as raw materials, petroleum ether as a solvent and triethylamine as an acid-binding agent; the reaction process comprises the following steps: reacting diphenyl phosphine chloride with ethanol to generate diphenyl ethyoxyl phosphine and hydrogen chloride, and reacting hydrogen chloride with triethylamine to generate triethylamine hydrochloride. And after the reaction is finished, separating triethylamine hydrochloride separated by crystallization from the liquid organic phase through centrifugation, taking the obtained triethylamine hydrochloride as a co-product, carrying out desolvation treatment on the obtained liquid organic phase to obtain a diphenylethoxyphosphine crude product, and rectifying to obtain the high-quality diphenylethoxyphosphine. The preparation process provided by the invention is mild in reaction condition, simple and convenient to operate and low in requirements on equipment and energy consumption; the raw materials are wide in source and low in cost, and the solvent and the acid-binding agent can be recycled, so that the method has the advantage of environmental protection. The prepared diphenyl ethyoxyl phosphine is high in purity and good in yield, and has a wide industrial application prospect.

The invention discloses a vinylene carbonate production waste treatment method, which comprises: dispersing triethylamine hydrochloride waste residue in water, filtering, adding excess alkali into the filtrate to carry out an alkaline hydrolysis reaction, and standing for layering to obtain an oil phase and a water phase, the oil phase containing triethylamine; adding calcium peroxide into the water phase, mixing and stirring to obtain a pretreatment solution; performing electrochemical catalytic oxidation treatment on the pretreatment solution, wherein a graphite felt electrode modified by a specific iron-based activated carbon catalyst is used as a cathode in the electrochemical catalytic oxidation treatment; the method is simple to operate, easy to implement, high in continuity, low in cost, free of high-temperature and high-pressure processes and excellent in treatment effect.

The invention relates to the technical field of triethylamine recovery, and particularly discloses a method for recovering triethylamine from triethylamine hydrochloride. The method comprises the following steps: adding sodium hydroxide into a triethylamine hydrochloride solid generated in a dechlorination reaction through a sodium hydroxide solution storage tank to adjust the pH value, dissociating a triethylamine organic phase and a sodium chloride solution, and sequentially carrying out saturated sodium chloride solution and electrolysis process on the sodium chloride solution to obtain a sodium hydroxide solution; the sodium hydroxide solution is changed into a concentrated solution containing sodium hydroxide solids through evaporation, the concentrated solution is used for circulating and mechanically applying in the sodium hydroxide solution storage tank after being filtered, the sodium hydroxide solids are used for drying the triethylamine organic phase, and the dried sodium hydroxide solution is continuously and mechanically applying back to the sodium hydroxide solution storage tank. According to the recovery treatment process, only sodium hydroxide is added, the sodium hydroxide can be recovered and recycled, the later addition amount is very small, and the whole process generates few impurities, is high in cyclic utilization rate and triethylamine recovery rate, does not generate waste liquid and is low in production cost.

The invention discloses a method for synthesizing butyl zirconate and butyl hafnate, and relates to the technical field of material synthesis, and the method comprises the following steps: mixing and stirring: putting a solvent n-heptane into a reaction kettle, putting a certain amount of hafnium tetrachloride (or zirconium tetrachloride) solid into the reaction kettle, putting a certain amount of n-butyl alcohol into the reaction kettle, and stirring for 30-60 minutes; finally, stirring; organic synthesis: introducing ammonia gas in the stirring process in the step S1, and setting the reaction temperature to be 45 DEG C or below and the reaction pressure to be normal pressure; performing solid-liquid separation; organic distillation; compared with the existing process, the preparation method has the advantages that the preparation cost of the product is greatly reduced through an organic synthesis and secondary distillation treatment mode; and secondly, in the preparation process, the generation of pollutants, especially triethylamine hydrochloric acid, is reduced, the generation of hazardous wastes is avoided, only deacidification and ammonium chloride removal treatment are needed, and compared with the existing process, the cost is greatly reduced, and the environmental protection benefit is relatively obvious.

This invention belongs to the field of two-dimensional material preparation technology, and provides an MXene material and its preparation method. The preparation method of the MXene material includes: mixing a MAX phase precursor to be etched with an organic halide reagent and a morphology modifier, performing a solvothermal etching reaction, and after the reaction, washing and drying the resulting product to obtain the MXene material; wherein the organic halide reagent is triethylamine trihydrofluoride, triethylamine hydrochloride, or dichloroethylamine hydrochloride, and the morphology modifier is ethylene glycol, dimethyl sulfoxide, or cyclohexane. The method of this invention can effectively control the microstructure and pore structure of the MXene material.

The utility model relates to a device for recovering DMC in triethylamine hydrochloride. The device comprises a first phase splitter, a first recovery system, a rectifying tower, a condenser, a second phase splitter and a second recovery system, an oil phase outlet of the first phase splitter is communicated with a material inlet of the first recovery system through a pipeline; a liquid phase outlet of the first phase splitter is communicated with a material inlet of the rectifying tower through a pipeline; a steam outlet in the rectifying tower is communicated with an inlet of the condenser through a pipeline, an outlet of the condenser is communicated with the second phase splitter through a pipeline, and a water outlet of the second phase splitter is communicated with a water inlet of the rectifying tower through a channel. And a DMC outlet of the second phase splitter is communicated with the second recovery system through a pipeline. The DMC recovery device has the beneficial effects that DMC is recovered through the device with a simple structure, continuous production can be realized, the production stability is high, and the equipment maintenance period is prolonged.

The invention relates to a method for preparing an adsorption material, and the method comprises the following steps: active carbon, transition metal chloride, an activator and olefin are contacted and react to obtain the adsorption material, and the activator is triethylamine hydrochloride chloroaluminate. According to the present invention, the activator and the transition metal chloride are adopted as the catalyst, the olefin is subjected to the reaction under the action of the catalyst, such that the olefin is loaded on the surface of the active carbon so as to effectively improve the hydrophobic property of the adsorption material, and the adsorption capacity and the moisture resistance of the material on the high-humidity VOCs can be effectively improved; after the adsorption material provided by the invention is in contact with a high-humidity material flow containing VOCs, the adsorption quantity of the VOCs can be effectively improved. And the preparation process is simple, low in cost and easy for large-scale production.

The invention relates to the technical field of water treatment membranes, and particularly discloses a high-flux polypiperazine amide nanofiltration membrane and a preparation method thereof.The high-flux polypiperazine amide nanofiltration membrane comprises a polysulfone base membrane and a polypiperazine amide functional layer located on the polysulfone base membrane, and the functional layer is formed by an interfacial polymerization reaction of a water phase solution and an organic phase solution; the aqueous phase solution comprises piperazine (PI P), polyvinyl alcohol (PVA) and triethylamine hydrochloride (TEA.HCl); the organic phase solution contains trimesoyl chloride (TMC) and a cyclohexane solvent; according to the invention, polyvinyl alcohol is introduced into a water-phase solution as an additive and has a synergistic effect with a catalyst triethylamine hydrochloride, so that an interfacial polymerization process is effectively regulated and controlled, a polyamide functional layer with better permeation selectivity is formed, and the technical bottleneck that flux and rejection rate are difficult to obtain at the same time in a traditional nanofiltration membrane is broken through; and effective consideration of the two performances is realized.

The invention discloses triethylamine hydrochloride freezing crystallization equipment and a triethylamine hydrochloride freezing crystallization process, and relates to the technical field of triethylamine hydrochloride preparation. The device comprises a solution processing assembly, a crystallization assembly, a crystallization tank, a stirring motor and a distinguishing linkage assembly, wherein the solution processing assembly comprises a processing tank and a tank cover which is located at the upper end opening of the processing tank and is in flange connection with the processing tank; the crystallization assembly comprises a crystallization tank located in the processing tank and a stirring motor fixed to the upper end face of the tank cover; comprising a distinguishing column sliding in the transverse cylinder, a linkage column located in the processing tank and arranged in parallel with the distinguishing column at the same height, a circulating backflow assembly and a freezing recycling assembly. According to the crystallization tank, the distinguishing column slides in the transverse cylinder, so that the bent hole and the vertical hole are moved to the position under the lower end opening of the crystallization tank in different time periods, the crystals in the crystallization tank can be distinguished in size, the small crystals are conveyed into the heating box through the screw rod, the recycled small crystals are melted and recrystallized, and the crystallization efficiency is improved. And the recrystallization work is realized by utilizing the waste heat.

The utility model discloses a triethylamine hydrochloride wastewater pretreatment device for AKD (Alkyl Ketene Dimer) production, which comprises a regulating tank, the regulating tank is connected with a reaction tank through a water pump I, the reaction tank is internally provided with a stirring device, a pH (Potential of Hydrogen) regulation dosing system and a desalination reaction agent dosing system, and the other end of the reaction tank is connected with an adsorption tower through a water pump II; compared with the prior art, the triethylamine hydrochloride treatment device has the advantages that the triethylamine hydrochloride is promoted to fully react by combining the pH regulation dosing system, the desalting reaction agent dosing system and the stirring device, so that the triethylamine hydrochloride can be fully treated, and the triethylamine hydrochloride can be fully treated. And by matching with multiple layers of strongly acidic cation exchange resin with gradually varied particle sizes in the adsorption tower, the triethylamine cations are deeply adsorbed, the removal efficiency of the triethylamine hydrochloride is remarkably improved, and two groups of stirring devices in the reaction tank can fully mix the wastewater and the medicament, accelerate the reaction process and improve the treatment efficiency.

The invention discloses a full-automatic pretreatment system for recycling triethylamine hydrochloride wastewater, and belongs to the field of triethylamine hydrochloride wastewater treatment.The full-automatic pretreatment system comprises an activated carbon powder bin, a batching tank, an intermediate tank, a first spiral tube type reactor and a second spiral tube type reactor, and a star-shaped unloader is arranged at the bottom of the activated carbon powder bin; a filtering assembly used for filtering activated carbon powder is arranged between the batching tank and the intermediate tank, the intermediate tank is communicated with a first spiral tubular reactor through a pipeline, and the first spiral tubular reactor is communicated with a second spiral tubular reactor through a pipeline. A pipeline II for conveying hydrochloric acid into the spiral tubular reactor I is arranged on the spiral tubular reactor I, and a pipeline III for discharging a pretreated sodium chloride solution into the MVR system is arranged on the spiral tubular reactor II. The MVR system has the advantages that enrichment of carbonate and organic matter solutions in the MVR system is reduced, the boiling point of the solutions is increased, sufficient steam cannot be vaporized at an inlet of the steam compressor, and circulating operation cannot be achieved.

The application belongs to the technical field of electrolysis of water, and particularly relates to a NiFe bimetallic MOF self-supporting bifunctional electrode for electrolysis of water and a method for electrolysis of water. The electrode takes foamed nickel as a substrate, and the surface of the substrate is uniformly coated with NiFe bimetallic MOF. The coating method comprises the following steps: two pieces of foamed nickel after cleaning and pretreatment are taken as anodes, one piece of foamed nickel after cleaning and pretreatment is taken as a cathode, and the anodes and the cathode are immersed in an electrolyte; under the condition of a constant current of 14-16 mA of a direct current power supply, electrodeposition is performed for 15-55 min; the area of the anode foamed nickel is larger than that of the cathode; in the electrolyte, N,N-dimethylformamide is taken as a solvent, and nickel salt, iron salt, 1,3,5-benzene tricarboxylic acid and triethylamine hydrochloride are uniformly dissolved in the solvent; the molar ratio of Ni to Fe is 40-75:1; and the concentration of triethylamine hydrochloride is 0.01-0.1 mol L⁻¹. The application adopts a double-anode electrodeposition process to improve deposition uniformity, fully expose active sites and reduce electrodeposition energy consumption; and the synergistic effect of the Ni-Fe bimetallic MOF optimizes the HER and OER catalytic performance of the electrode.

The present invention belongs to the technical field of methods for recovering triethylamine, and specifically relates to a method for recovering triethylamine hydrochloride to simultaneously prepare triethylamine and ammonium chloride. The method for recovering triethylamine hydrochloride to simultaneously prepare triethylamine and ammonium chloride of the present invention comprises the following steps: firstly, adding triethylamine aqueous solution to triethylamine hydrochloride raw material, keeping the solid content less than 30%, then adding liquid ammonia, reacting in a closed stirring manner, controlling the reaction temperature and reaction pressure, and cooling the reaction to room temperature after the reaction is completed to obtain a reaction mixture, and finally filtering to obtain crude ammonium chloride and triethylamine liquid, treating the crude ammonium chloride to obtain pure ammonium chloride, and drying the triethylamine liquid to obtain pure triethylamine. The present invention provides a method for recovering triethylamine hydrochloride to simultaneously prepare triethylamine and ammonium chloride, which has high reaction conversion rate, good economy, high yield and high purity of the two products.

The invention discloses a method for preparing 2-methyl-6-acyl naphthalene, which comprises the following steps: S1, mixing aluminum trichloride crystals with triethylamine hydrochloride powder under the protective atmosphere and anhydrous condition to obtain ionic liquid; s2, under a protective atmosphere, dropwise adding acyl chloride into the ionic liquid to obtain an acylation reagent of acyl chloride; s3, dissolving 2-methylnaphthalene to obtain a 2-methylnaphthalene solution; s4, adding an acylation reagent into the 2-methylnaphthalene solution under a protective atmosphere and a low-temperature condition, and stirring to react; and S5, after the reaction, quenching the reaction product by using a hydrochloric acid solution, then extracting, neutralizing the extract, and drying to obtain the 2-methyl-6-acyl naphthalene product. The method for preparing the 2-methyl-6-acylnaphthalene is different from the prior art, the method abandons the use of a toxic polar solvent and a strong mixing mode, and many problems caused by the polar solvent and the strong mixing mode do not exist in the preparation process of the 2-methyl-6-acylnaphthalene.

This invention relates to the field of lithium battery electrolyte technology, specifically a method for synthesizing tripropynyl phosphate, comprising the following steps: 1) In a dry reaction vessel, an organic solvent is added, and phosphorus oxychloride is dissolved in the organic solvent, and stored under an inert atmosphere at low temperature; 2) A mixture of propynyl alcohol and triethylamine is slowly added dropwise, and the reaction is continuously stirred while maintaining a low temperature; 3) The mixture is slowly added dropwise, and the reaction is stirred after the temperature is raised to room temperature; 4) The mixture is slowly added to the reaction vessel, and the reaction is stirred after the temperature is raised to room temperature; 5) The triethylamine hydrochloride is removed by filtration, and the filtrate is distilled under reduced pressure to obtain a crude product, which is then purified by reduced pressure distillation or column chromatography. This invention effectively solves the problems of violent exothermic reactions, numerous side reactions, harsh reaction conditions, and difficulties in post-processing and purification of the product in existing synthesis methods by rationally designing reaction steps and precisely controlling reaction conditions and molar ratios.

The invention belongs to the technical field of two-dimensional material preparation, and provides an MXene material and a preparation method thereof.The preparation method of the MXene material comprises the steps that a to-be-etched MAX phase precursor, an organic halogenation reagent and a morphology regulating agent are mixed, a solvothermal etching reaction is conducted, after the reaction is finished, an obtained product is cleaned and dried, and the MXene material is obtained; wherein the organic halogenation reagent is triethylamine trihydrofluoride, triethylamine hydrochloride or dichloroethylamine hydrochloride, and the morphology regulating agent is ethylene glycol, dimethyl sulfoxide or cyclohexane. The method provided by the invention can effectively regulate and control the microstructure and pore structure of the MXene material.

The invention relates to an antibacterial chitosan oligosaccharide derivative and a preparation method and application thereof.The main raw materials of the antibacterial chitosan oligosaccharide derivative all belong to green and pure natural raw materials, other synthetic raw materials belong to low-toxicity or non-toxic reagents and are cheap and easy to obtain, the reaction is simple, the reaction condition is mild, the yield is high, the reaction can be quantified, and industrial mass production is easy to achieve; and most of byproducts, such as acetic acid, triethylamine hydrochloride, pivalic acid and the like, involved in the synthesis process can be recycled, so that the preparation cost is greatly saved. According to the scheme, the chitosan oligosaccharide has a relatively strong antibacterial effect, a protective layer similar to a'sugar coating 'chitosan oligosaccharide derivative can be formed on the surface of a feed, and the derivative has antibacterial performance and is small in addition amount, so that the dosage of antibiotics in the feed can be reduced.

The utility model provides a washing and filtering device for producing triethylamine hydrochloride from vinylene carbonate, and relates to the technical field of fine chemical production. The box body comprises a first filtering chamber, a second filtering chamber and a washing chamber, a driving motor is installed at the top of the first filtering chamber, the output end of the driving motor is connected with a dynamic electromagnetic adjusting assembly, the dynamic electromagnetic adjusting assembly comprises a driving gear, and the driving gear is connected with the output end of the driving motor; under the cooperation of the dynamic electromagnetic adjusting assembly, it is ensured that the filtered solution reaches the high purity standard, the requirements of the subsequent production process are met, the washing effect and the impurity removal efficiency can be remarkably improved by acting on the solution through the dynamically changing magnetic field, the operation stability of the device and the reliability of the filtering effect are improved, and the product quality is improved. And a multi-stage dynamic filtering modular structure is formed, so that impurities in different particle size ranges are effectively intercepted, and the problem of easy blockage is reduced.

The invention relates to a synthesis method and a synthesis processing system of quinclorac oxadiazon, and belongs to the technical field of pesticide synthesizing.The synthesis method comprises the steps that firstly, through mediation of a silane coupling agent, nanometer copper oxide particles are evenly loaded in mesopores of an adsorption type molecular sieve, and then the adsorption type molecular sieve, 3, 7-dichloro-8-quinolinecarboxylic acid and N, N-dimethylformamide are mixed to form the quinclorac oxadiazon. According to the present invention, substances such as N, N-dimethylformamide and the like are subjected to acyl chloride, esterification and transposition rearrangement reactions, the copper oxide nanoparticles in the adsorption type molecular sieve and N, N-dimethylformamide achieve the synergistic effect, and can form the active intermediate with thionyl chloride, such that the activation energy of the acylating chlorination reaction is reduced, and the acylating chlorination reaction time is shortened; the mesoporous structure of the MCM-41 molecular sieve can adsorb hydrogen chloride gas generated in the acylating chlorination reaction in situ through Van der Waals' force and capillary coagulation, the conversion rate of the acylating chlorination reaction is improved, and the in-situ removal of hydrogen chloride can also reduce the use amount of an acid-binding agent triethylamine in the subsequent esterification reaction, so that the generation of triethylamine hydrochloride by-products is reduced, and the material loss is reduced.

The present application discloses a method for preparing ethylene glycol, which comprises adding ethylene glycol monomethyl ether and water as reaction raw materials and a catalyst into a reactor in a predetermined ratio to perform a hydrolysis reaction at a predetermined pressure and a predetermined temperature to obtain ethylene glycol; wherein the catalyst is selected from at least one of an ionic liquid and an inorganic acid, the ionic liquid includes pyridine hydrochloride, triethylamine hydrochloride, and imidazole hydrochloride; the inorganic acid is selected from at least one of sulfuric acid, phosphoric acid, and nitric acid. The method is characterized in that ethylene glycol monomethyl ether and water are used as reaction raw materials, and a high yield of ethylene glycol can be produced, the process is simple, and it is a new method for synthesizing ethylene glycol.

The invention discloses a method for detecting the content of triethylamine hydrochloride in a glyphosate material, which comprises the following steps of: quickly injecting a sample containing triethylamine hydrochloride into an ion chromatograph, separating by an eluent and a chromatographic column, and feeding into a conductivity detector to detect the content of triethylamine hydrochloride. The method disclosed by the invention has selectivity, and particularly can be used for detecting the glyphosate crystalline liquid with complex components, so that the interference of a large number of inorganic chlorides in the glyphosate crystalline liquid is effectively avoided. According to the method, the content of triethylamine hydrochloride can be directly quantified by adopting an ion chromatography-conductivity detector, and timely and accurate data reference is provided for glyphosate production process parameters, safety and environmental protection.

The invention discloses an Et3NHCl-FeCl3 ionic liquid catalyst for synthesizing a triazine ultraviolet light absorber, and relates to the technical field of catalysts, the catalyst is prepared by mixing and reacting triethylamine hydrochloride, ferric trichloride and a third component; the catalytic performance of the catalyst is remarkably improved by constructing a ternary eutectic system comprising triethylamine hydrochloride, ferric trichloride and a third component, the ternary components have a synergistic effect to form a multi-element active center, triethylamine hydrochloride provides a Bronsted acid site, ferric trichloride contributes Lewis acid activity, and the catalytic performance of the catalyst is remarkably improved. The third component synergistically improves the efficiency and selectivity of the nucleophilic substitution reaction of cyanuric chloride and aromatic amine by enhancing proton transfer and chelating metal to inhibit hydrolysis or expand acidic sites, and the preparation process adopts premixing, step-by-step feeding and precise dehydration strategies, so that the structural stability and batch consistency of the catalyst can be ensured, and the preparation process is suitable for industrial production. The excellent cyclic regeneration capability is endowed.

The invention belongs to the technical field of membrane separation, and particularly relates to a high-flux polypiperazine amide nanofiltration membrane and a preparation method thereof. The polypiperazine amide functional layer is formed by polymerizing an aqueous phase precursor and an organic phase precursor, the aqueous phase precursor comprises 0.4%-1.2% of piperazine, 0.2%-1% of triethylamine hydrochloride, 0.02%-0.1% of polyvinyl alcohol and 0.002%-0.01% of nanocellulose, and the organic phase precursor comprises 0.06%-0.14% of trimesoyl chloride (the proportion is w / v). Under the test conditions of 500 ppm of a NaCl solution, 0.5 MPa and 25 DEG C, the water flux of the obtained nanofiltration membrane can reach 55.2 LMH at most, and the NaCl salt rejection rate can reach 35% or above, which is significantly higher than that in the prior art. The nanofiltration membrane has high water flux and high salt rejection rate, meanwhile, the requirement for operation pressure is lower, the desalination efficiency can be remarkably improved, and the unit water production energy consumption can be reduced.

An electrolyte for an electrochemical device is disclosed. The electrolyte can include a triethylamine halide and a zinc salt, where the triethylamine halide and zinc salt are a eutectic electrolyte mixture. The electrolyte can include where the triethylamine halide is a chloride or a hydrochloride. The zinc salt can include a sulfate, a tetrafluoroborate, or where the zinc salt is hydrated. The eutectic electrolyte mixture may include triethylamine hydrochloride and a zinc sulfate hydrate. The eutectic electrolyte mixture may include triethylamine hydrochloride and zinc trifluoromethane sulfonic acid (Zn(CF3SO3)2). The eutectic electrolyte mixture may include a zinc tetrafluoroborate, a zinc perchlorate, a zinc acetate, a zinc bis(trifluoromethylsulfonyl)imide, or a combination thereof.

The invention discloses metal surface anticorrosive paint and a preparation method thereof, and relates to the field of metal anticorrosive paint. When the metal surface anticorrosive paint is prepared, modified castor oil and triethylamine hydrochloride react to prepare a castor oil-based cross-linking agent; the preparation method comprises the following steps: carrying out epoxidation reaction on hexafluorobisphenol A and epoxy chloropropane to prepare an epoxy prepolymer; reacting the epoxy prepolymer with protocatechuic acid to obtain modified epoxy resin; the preparation method comprises the following steps: reacting 2-aminobenzothiazole with isocyanate propyl triethoxy silane to prepare modified silane; and uniformly mixing the modified epoxy resin, the modified silane and the mixed solvent, and adding the flatting agent and the castor oil-based cross-linking agent to prepare the metal surface anticorrosive paint. The metal surface anticorrosive paint prepared by the invention has excellent corrosion resistance, antibacterial property and high adhesive force.

This invention discloses a ruthenium-nickel-based bifunctional self-supporting electrode, its preparation method, and its applications. The method includes preparing a deposition electrolyte using nickel chloride hexahydrate, ruthenium chloride, terephthalic acid, and triethylamine hydrochloride as solutes and N-dimethylformamide as a solvent; immersing pretreated nickel foam in the electrolyte as the working electrode, using a platinum mesh as the counter electrode and an Ag / AgCl electrode as the reference electrode, and applying a current of -10mA to -20mA for deposition; after electrodeposition, washing the loaded nickel foam with DMF, ultrapure water, and ethanol, and then vacuum drying to obtain the ruthenium-nickel-based bifunctional self-supporting electrode. The ruthenium-nickel-based self-supporting bifunctional electrocatalyst provided by this invention can be used for water splitting reactions, exhibiting both good HER and OER activities, and can achieve high hydrogen evolution and oxygen evolution current densities at relatively low overpotentials.