18 results about "Triethylamine hydrochloride" patented technology

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 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 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.

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 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 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.

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.

The invention provides an inorganic matter and organic matter compounded clay stabilizer for water injection, and discloses that dimethyl diallyl ammonium chloride is used as a raw material, and a phenol polymerization inhibitor is added to prevent polymerization in the use process, so that cationic monomer micromolecules containing double bonds are used as an organic cationic clay stabilizer, and the water injection efficiency is improved. When being used together with the same small-molecular-weight amine raw material, namely triethylamine hydrochloride, the anti-clay swelling agent has the performance of preventing clay swelling, anti-scouring capability and long-term effect, and has better performance of preventing clay swelling after being compounded with cheap inorganic raw materials, namely monopotassium phosphate, industrial ammonium chloride and industrial potassium chloride; the prepared clay anti-swelling agent compounded by the inorganic matter and the organic matter not only has excellent capability of preventing clay swelling, but also has good anti-scouring capability and good washing resistance, and plays an innovative demonstration role in preventing damage of clay swelling and migration to a reservoir in water injection and improving water drive recovery efficiency.

This invention discloses a method for recovering triethylamine hydrochloride and treating wastewater, aiming to solve the problems of recovering vinylene carbonate and triethylamine while reducing the cost of waste treatment. The method includes: Step 1: Soaking triethylamine hydrochloride in an organic solvent, ultrasonically cavitating and pulverizing the triethylamine hydrochloride, dissolving vinylene carbonate, filtering, and drying the triethylamine hydrochloride in stages under reduced pressure to recover vinylene carbonate and triethylamine; Step 2: Mixing the triethylamine hydrochloride with diatomaceous earth and subjecting it to high-temperature heat treatment; Step 3: Dissolving the heat-treated mixture of triethylamine hydrochloride and diatomaceous earth in water, filtering, alkaline hydrolysis, phase separation, and wastewater extraction; Step 4: Using an adsorbent to adsorb the wastewater, resulting in effluent with TOC < 10 ppm and TN < 5 ppm, which can be directly discharged into the sea after meeting the standards. Compared with traditional wastewater evaporation and salt precipitation operations, this method significantly reduces wastewater treatment costs. The recovered vinylene carbonate, after desolventizing and purification, can be sold as a product.

The application provides a method for recovering process water from glyphosate acid mother liquor, wherein the glyphosate acid mother liquor is added with sodium carbonate, stirred, circulated, and pH value is adjusted to obtain pretreated mother liquor; the pretreated mother liquor is degassed, and the removed carbon dioxide and low-boiling organic substances are absorbed by using liquid alkali or solid alkali; a deodorizing agent is added into the absorption liquid to remove odor to obtain a mixed liquid containing sodium carbonate hydrate and sodium bicarbonate hydrate microcrystals; the acid mother liquor is pretreated by using sodium carbonate, and evaporation condensate water is separated and recovered from the pretreatment; and triethylamine hydrochloride is recovered. The evaporation condensate water recovered from the glyphosate mother liquor has low organic nitrogen content, no odor, and quality indexes meeting process requirements, and can be directly reused or used as supplementary water after being further purified by a membrane for processes such as chloromethane recovery, hydrochloric acid recovery and material washing in glyphosate production.

The application discloses a system and method for recovering triethylamine in a vinylene carbonate production process, which comprises a dissolving kettle, a filtering device, a first resin tank, a second resin tank, a neutralization and separation device, a rectifying device, a triethylamine receiving tank, an anhydrous methanol high tank, an eluent receiving tank and a waste water receiving tank; the dissolving kettle is connected with the filtering device and the second resin tank in sequence; two pipelines are arranged at the bottom of the second resin tank and are connected with the neutralization and separation device and the eluent receiving tank respectively; two pipelines are arranged at the bottom of the neutralization and separation device and are connected with the waste water receiving tank and the rectifying device respectively; the rectifying device is connected with the triethylamine receiving tank; and the top of the first resin tank is connected with the anhydrous methanol high tank. After triethylamine hydrochloride is dissolved and filtered, macroporous resin is used to adsorb the impurities contained in the filtrate, and then triethylamine hydrochloride aqueous solution is obtained through the adsorption treatment; after the triethylamine hydrochloride aqueous solution is neutralized and separated by using sodium hydroxide, triethylamine crude product is obtained; and then, triethylamine is obtained through rectification; the recovery rate of the triethylamine is as high as 90%, and the purity is higher than 99.9%.

The utility model discloses a triethylamine hydrochloride wastewater pretreatment device, which relates to the technical field of wastewater pretreatment and comprises a stirring tank. A first motor for driving the rotating shaft to rotate is mounted at the top of the stirring tank, a stirring part is mounted on the outer side of the rotating shaft and close to the bottom, a purification box for pretreating wastewater is mounted on the other side of the stirring tank, and a filtering part is mounted on the inner side of the purification box through multiple groups of locking fasteners; according to the sewage treatment device disclosed by the utility model, large-particle impurities in sewage are filtered and purified in advance through the filtering piece in the purification box, and a purified aqueous solution is pumped into the stirring tank by utilizing the liquid pump; the stirring piece is used for fully stirring and mixing the aqueous solution and the medicine, the PH value adjusting speed is increased, the brushing piece can be used for brushing and cleaning the filtering piece, impurity accumulation is avoided, and the filtering piece can be taken out, disassembled, replaced or fixedly installed through the locking piece.

This invention discloses a method for preparing an amphiphilic free radical initiator. The method involves preparing a solution of oleic acid polyoxyethylene ester or stearic acid polyoxyethylene ester and triethylamine / dichloroethane, then slowly adding the triethylamine / dichloroethane solution dropwise to the solution. The reaction is carried out at room temperature, and after the oxaloyl chloride solution is completely added, the reaction continues for 30 minutes. Next, a tert-butyl hydroperoxide / dichloroethane solution is slowly added dropwise, and the reaction continues at room temperature, continuing for another 60 minutes. The dichloroethane solvent in the reaction solution is removed under reduced pressure at room temperature. Then, n-hexane is added, and the triethylamine hydrochloride solid is filtered out. The obtained filtrate is then filtered again to remove the n-hexane solvent under reduced pressure at room temperature, yielding the amphiphilic peroxide product.

The invention discloses a method for preparing an aluminum-manganese alloy through room-temperature electrolyte electro-deposition, and belongs to the technical field of metallurgy. According to the method, triethylamine hydrochloride and aluminum chloride are adopted to prepare room-temperature electrolyte, anhydrous manganese chloride or manganese bromide is used as manganese salt, and the aluminum-manganese alloy is prepared through electro-deposition under the low-temperature non-aqueous condition. According to the method, stable deposition of the aluminum-manganese alloy layer can be achieved on the surface of the magnesium-lithium alloy without a high-temperature condition, the components of the deposited aluminum-manganese alloy layer are more uniform, and accurate control over the manganese content in the deposited layer can be achieved. Meanwhile, the aluminum-manganese alloy plating layer obtained through electroplating of the method is compact in structure, the corrosion resistance and the service reliability of a matrix are remarkably improved, and the method is particularly suitable for surface protection of active metal materials such as magnesium-lithium alloy.