94 results about "Triethylene glycol" patented technology

The invention belongs to the technical field of high polymer materials, and particularly relates to a PVB (Polyvinyl Butyral) film and a preparation method thereof. The PVB film provided by the invention is prepared from the following components in parts by mass: 100 parts of PVB resin, 33 to 36 parts of triethylene glycol di-2-ethylhexoate, 7 to 9 parts of integrated anti-radiation toughening filler, 1 to 2 parts of organic montmorillonite, 0.8 to 1.2 parts of composite coupling agent, 0.5 to 1 part of ultraviolet light absorber, 0.6 to 0.8 part of antioxidant and 0.8 to 1 part of heat stabilizer. The integrated anti-radiation toughening filler adopts a core-shell structure, the anti-radiation core is composed of bismuth oxide and tungsten oxide according to the mass ratio of 3: 1, and the elastic coating layer is maleic anhydride grafted modified POE. The preparation method comprises the steps of pre-dispersion treatment, component mixing, melt extrusion, film casting, graded cooling, two-way stretching and the like. Through the core-shell structure design of the integrated anti-radiation toughening filler and the optimized processing technology, the anti-radiation performance and the toughening performance are synergistically improved, and the prepared film has the advantages of excellent anti-radiation effect, high toughness and good transparency.

The invention discloses a low-energy-consumption skid-mounted triethylene glycol dehydration tail gas zero-emission treatment device which comprises a tail gas cooling unit, a gas-liquid separation unit and a tail gas recycling unit which are connected in sequence, the gas-liquid separation unit comprises a gas-liquid separation tank, the gas-liquid separation tank is provided with a gas output pipe, and the gas output pipe is connected with the tail gas cooling unit. The tail gas recycling unit is provided with a tail gas input pipeline, the gas output pipe is communicated with the tail gas input pipeline, the tail gas input pipeline is further communicated with the power natural gas output pipeline, and an ejector is installed at the joint of the power natural gas output pipeline and the tail gas input pipeline. Tail gas and natural gas are conveyed to the rear end of the natural gas of the main pipeline. The system has the beneficial effects that regenerated tail gas after gas-liquid separation is mixed with power natural gas with pressure under the action of the ejector, and the tail gas is conveyed to the rear end of the natural gas of the main pipeline, so that the tail gas is recycled, the economic benefit is improved, zero emission of the tail gas is realized, and the environment is prevented from being polluted.

The utility model discloses a TEG automatic cleaning furnace for cleaning a spinneret plate. The TEG automatic cleaning furnace comprises a control cabinet, a transfer device, a TEG cleaning device and a bearing support mechanism. The transfer device comprises a lifting driving mechanism, a swing driving mechanism and a support locking mechanism. According to the TEG automatic cleaning furnace for cleaning the spinneret plate, by means of cooperation of the lifting driving mechanism, the swing driving mechanism and the support locking mechanism, locking and hoisting of the bearing support mechanism can be achieved, and therefore the spinneret plate borne on the bearing support mechanism is automatically fed into the TEG cleaning device to be subjected to triethylene glycol cleaning treatment; and after treatment is completed, the bearing support mechanism and all the spinneret plates are lifted and taken out together, manual participation is greatly reduced, and the batch cleaning efficiency of the spinneret plates is effectively improved.

The invention belongs to the technical field of compound synthesis, and particularly relates to a synthesis method of AEA-AEA. Triethylene glycol is adopted as a starting material, in the first step, p-toluenesulfonate with high leaving property is formed through TsCl, then nucleophilic substitution is performed, and a product 2 is obtained; the preparation method comprises the following steps: preparing a product 3, oxidizing by adopting TEMPO capable of being industrially produced, removing Pht through quantitative hydrazine hydrate to obtain a product 4, esterifying and extracting to obtain a product 5, acylating through the product 3 to obtain amide, washing, extracting and pulping to obtain an esterified product 6; and finally, quantitatively removing Pht, hydrolyzing and pulping to obtain a pure product. According to the method, complex operation steps of using metal hydride and alkylating column passing are avoided, process production can be realized, and the product yield and purity are relatively high.

The embodiment of the invention provides a connecting unit for chemical modification of a nucleic acid end group, a preparation method of the connecting unit and a nucleic acid probe. The connecting unit for chemical modification of the nucleic acid end group has a triethylene glycol structure, and the connecting unit has the following structure. Therefore, the connecting unit with the triethylene glycol structure is relatively simple in synthesis process, relatively high in yield, efficient in synthesis, good in nucleic acid end group chemical modification effect, applicable to connection of various types of probe molecules and nucleic acid molecules, capable of simply and efficiently preparing nucleic acid probes and wide in application range.

The invention discloses application of a benzyltrimethyl eutectic solvent in extraction of amaranth red dye, and belongs to the technical field of eutectic solvents. The method comprises the following steps: putting an ABS (Acrylonitrile Butadiene Styrene) solution formed by a benzyltrimethyl eutectic solvent and K3PO4 into an aqueous solution containing amaranth, and extracting the amaranth dye under a constant-temperature stirring condition. The benzyltrimethyl eutectic solvent is synthesized from benzyltrimethyl ammonium chloride and triethylene glycol. An ABS (Acrylonitrile Butadiene Styrene) solution formed by the benzyltrimethyl deep-eutectic solvent prepared by the invention and K3PO4 has relatively strong trapping capacity on amaranth dye, and the extraction efficiency of the amaranth dye is up to 98.1% under the condition that the mass ratio of the ABS solution to an aqueous solution containing amaranth is 1: 1. Meanwhile, the benzyltrimethyl eutectic solvent has the advantages of simple synthesis, low price and the like.

The invention discloses a preparation method of an ammonium perchlorate microrod with a uniform morphology. The preparation method comprises the following steps: firstly, heating a triethylene glycol saturated solution of ammonium perchlorate under a room temperature condition to a preset high temperature; then adding the high-temperature ammonium perchlorate saturated solution into an acetic acid anti-solvent at a certain temperature at a certain feeding rate for recrystallization; and finally, standing, separating, washing and drying the product to obtain the ammonium perchlorate microrod. The obtained ammonium perchlorate microrod is regular in morphology, good in dispersity and uniform in size, the length is 40-60 microns, and the width is about 10 microns. The method has the advantages of being high in operability, good in repeatability, easy to industrialize and the like.

A waste triethylene glycol purification and recycling device relates to the technical field of triethylene glycol purification devices and comprises a triethylene glycol vacuum evaporation tank, a primary condenser, a secondary condenser, a condensation storage tank, a gas-liquid separation tank and a vacuum pump, a steam outlet pipeline A is arranged at the upper end of the triethylene glycol vacuum evaporation tank and communicated with an inlet of the primary condenser, and a steam outlet pipeline B is arranged at the lower end of the steam outlet pipeline A; triethylene glycol steam is condensed into liquid through the first-stage condenser, an outlet of the first-stage condenser is communicated with the condensation storage tank, a steam outlet pipeline B is arranged on the upper portion of the condensation storage tank and communicated with an inlet of the second-stage condenser, and gaseous triethylene glycol steam is condensed into liquid through the second-stage condenser. An outlet of the secondary condenser is communicated with a gas-liquid separation tank; the upper part of the gas-liquid separation tank is communicated with a vacuum pump; the vacuum degree of the triethylene glycol vacuum evaporation tank is 4KPa, and under the vacuum degree, the boiling point of triethylene glycol is lower than 200 DEG C and lower than the theoretical decomposition temperature of 208 DEG C, so that purer triethylene glycol can be obtained and reaches the recycling standard.

This invention discloses a copper-cobalt oxide catalyst, its preparation method, and its application, belonging to the field of wastewater purification technology. The invention uses CuSO4·5H2O, CoSO4·7H2O, and urea as raw materials, volcanic rock fragments as a matrix, and water and triethylene glycol as solvents to prepare a copper-cobalt oxide catalyst. This copper-cobalt bimetallic catalyst can be applied to the catalytic treatment of antibiotic wastewater, exhibiting good activation effects on persulfate. When used to treat antibiotic wastewater containing tetracycline, it can essentially achieve complete removal of tetracycline.

The invention discloses an electrolyte, a lithium ion battery and an electronic product. The electrolyte comprises electrolyte salt and a solvent; wherein the concentration of the electrolyte salt is 0.1 mol / L-5 mol / L, and the ether solvent comprises one or more of dimethoxymethane, diethoxymethane, 1, 2-diethoxyethane, 1, 3-dioxolane, 1, 3-dioxane, 1, 4-dioxane, tetrahydrofuran, 2-methyltetrahydrofuran, tetrahydropyran, diethyl ether, cyclopentyl methyl ether, triethylene glycol dimethyl ether and tetraethylene glycol dimethyl ether. According to the electrolyte provided by the invention, the ether solvents are reasonably screened, and the ether solvents with relatively weak lithium salt dissolving capacity are selected, so that the electrolyte forms contact ion pairs and aggregation ion pairs at low concentration, and then anion derivative interface chemistry is introduced, and the obtained electrolyte reduces co-intercalation behaviors and is relatively good in stability at low temperature; the method is suitable for low-temperature environments.

The invention provides a method for preparing adamantane, and relates to the technical field of chemical production. The method comprises the following steps: mixing 1-bromoadamantane, an organic solvent and an aminating agent and heating at 160-250° C. to obtain adamantane; the organic solvent comprises one or more of diethylene glycol dimethyl ether, diethylene glycol diethyl ether, triethylene glycol dimethyl ether and tetraethylene glycol dimethyl ether, and the aminating agent is a mixture of urea and sodium bicarbonate; the method solves the technical problems that the current preparation of adamantane has a large risk, high cost and is difficult to use for industrial production.

The invention discloses a preparation method of a corrosion inhibitor for magnesium alloy cutting fluid, which specifically comprises the following steps: heating dodecenyl succinic anhydride to 80-100 DEG C, adding triethylene glycol monobutyl ether with equal molar ratio into the dodecenyl succinic anhydride, and carrying out esterification reaction for 4-5 hours to obtain the corrosion inhibitor. The corrosion inhibitor prepared by the method disclosed by the invention is added into the magnesium alloy cutting fluid, so that the magnesium alloy cutting fluid has good lubricating performance and also has good hard water resistance and good corrosion inhibition performance, on one hand, a compact adsorption film layer can be formed on the surface of a magnesium alloy; on the other hand, the magnesium alloy cutting fluid can rapidly capture the precipitated magnesium ions and uniformly disperse the magnesium ions in the cutting fluid, so that the conditions of demulsification and failure of the cutting fluid caused by rapid increase of water hardness can be effectively prevented, and the service life of the magnesium alloy cutting fluid is greatly prolonged.

The present invention provides a dispersant, a suspension containing the same, a water-based drilling fluid and a water-based fracturing fluid. The dispersant comprises diethanolamide of linoleic acid, sodium dodecyl sulfate, isomeric tridecanol polyoxyethylene ether, triethylene glycol butyl ether, a tackifier and a solvent.

The present invention relates to a composite resin for esthetic restorations with improved antimicrobial properties and polymerization depth, and a manufacturing method therefor, wherein the compositive resin comprises urethane dimethacrylate (UDMA), bisphenol A-glycidyl methacrylate (BIS-GMA), bisphenol A dimethacrylate ethoxylated (BIS-EMA), triethylene glycol dimethacrylate (TEGDMA), a photoinitiator, a co-photoinitiator, a filler, barium glass, an accelerator, an antioxidant, a discoloration inhibitor, and an antimicrobial agent in addition to lysozyme. With the enhanced polymerization depth, the resin can be applied as a bulk-fill resin, and the excellent antimicrobial properties thereof provide resistance against bacteria and viruses. After polymerization, the resin exhibits a flexural strength exceeding 80 MPa, which is a level required by the Korean Ministry of Food and Drug Safety.

The disclosure features polymorphs of a prodrug dimer of dexamethasone linked at the 21-C and 21′-C carbons via a carbonate-triethylene glycol-carbonate linker. Also disclosed are pharmaceutical compositions and articles comprising said polymorphs, and the use thereof in the treatment of a disease or condition, e.g. via the extended or controlled release of dexamethasone from said articles.

The invention relates to the technical field of recycled asphalt mixtures, and particularly discloses a recycled asphalt mixture with good durability and a preparation method thereof. The invention discloses a recycled asphalt mixture with good durability. The recycled asphalt mixture is prepared from 60-80 parts of a waste asphalt mixture reclaimed material, 4-7 parts of new asphalt, 15-18 parts of a new aggregate, 2-5 parts of fibers, 3-7 parts of a regenerant and 2-5 parts of filler, wherein the regenerant is prepared from aromatic hydrocarbon oil, triethylene glycol di-2-ethylhexoate, 2-ethylhexyl diphenyl phosphate, dioctyl terephthalate, epoxidized soybean oil, dipropylene glycol methyl ether acetate, polymethylene polyphenyl polyisocyanate, oleic acid hydroxyethyl imidazoline, 0 erucyl amide and barium petroleum sulfonate. The recycled asphalt mixture provided by the invention can effectively resist generation of diseases such as ruts and cracks, the service life of a road is remarkably prolonged, and the maintenance cost of the road is reduced.

The utility model relates to an injection device and triethylene glycol dehydration regeneration tail gas treatment system, belongs to the technical field of natural gas equipment, and comprises at least two stages of injectors, each injector comprises an injection inlet used for inputting injection gas, a suction inlet used for sucking tail gas and a mixing outlet, the injection inlet corresponds to the mixing outlet, and the suction inlet corresponds to the mixing outlet. A throttling runner is at least constructed between the injection inlet and the mixing outlet; the mixing outlet of the upper-stage ejector is communicated with the suction inlet of the lower-stage ejector, and the ejectors at all stages are sequentially connected in series into a whole; according to the injection device, tail gas can be injected and pressurized in a tail gas recovery system, so that a compressor is not needed, a firing furnace structure can be omitted, and the operation and maintenance cost can be greatly saved; and the pressure of the injected and pressurized mixed gas can reach a preset value more accurately and efficiently, so that the mixed gas can be smoothly input into a natural gas pipeline network, the requirements of different processes can be met, and the universality is higher.

This invention discloses a centralized VOCs gas recovery device and process for zero emissions at a station, belonging to the field of ecological governance technology. The specific steps of the process are as follows: I. Before gas recovery, the water cooling system and hydraulic system are debugged and safety parameters are set, while the status of each valve is checked; II. The triethylene glycol tail gas and VOCs gas in the venting main are collected and pretreated, and the pretreated triethylene glycol tail gas and VOCs gas are pressurized in one stage. This invention ensures a non-combustion state, reduces the workload of on-site installation and maintenance, simplifies the overall recovery process, eliminates the need for the high power consumption and complex frequency conversion control of conventional reciprocating machines and screw compressors, reduces energy loss, reduces operating costs, and comprehensively avoids risks such as equipment overpressure, gas backflow, and flare backfire, ensuring system safety and stable recovery efficiency. Therefore, we propose a centralized VOCs gas recovery device and process for zero emissions at a station.

The present invention belongs to the field of oil production technology, and specifically relates to an organic zirconium cross-linking agent and its preparation method and application. The preparation method is as follows: zirconium tetrachloride and triethylene glycol are added to a reactor, stirred for reaction for 30-60 minutes, heated to 60-65°C, and kept warm for reaction for 30-60 minutes; 4-aminopyridine is added to the above reactor, heated to 65-70°C, and kept warm for reaction for 60-120 minutes; cooled to below 40°C, ethanol is added, and pH is adjusted to 7-8 with ammonia water to obtain a product organic zirconium cross-linking agent. The cross-linking agent of the present invention has the advantages of controllable cross-linking time, good cross-linking effect and strong antibacterial ability.

This invention provides an absorbent for capturing carbon dioxide and a method for capturing carbon dioxide. By volume percentage, the absorbent comprises 20-60% glycine salt aqueous solution, 10-50% triethylene glycol monomethyl ether, 5-10% ethylene glycol, and the balance being water. This absorbent combines the advantages of glycine salt systems, such as low volatility, non-toxicity, safety, and better antioxidant degradation resistance, while avoiding the risk of solid precipitates forming after absorption by the glycine salt system, which could cause pipeline blockage.

The efficient liquid distributor comprises a mounting cylinder, a discharging plate is arranged at the bottom of the mounting cylinder, a plurality of groups of liquid outlet holes are formed in the discharging plate, a drainage mechanism matched with the liquid outlet holes for use is arranged below the liquid outlet holes, a circular adjusting plate is rotationally arranged at the top of the discharging plate, and a plurality of liquid outlet holes are formed in the circular adjusting plate. A plurality of sets of adjusting holes used in cooperation with the liquid outlet holes are formed in the circular adjusting plate, a driving rod is installed in the center of the top of the circular adjusting plate, a first bevel gear is arranged on the outer side of the driving rod and engaged with a second bevel gear, and the second bevel gear is installed on the outer side of the rotating rod; and one end of the rotating rod is connected with a speed reduction driving mechanism. According to the efficient liquid distributor suitable for the triethylene glycol absorption tower, in order to solve the problem that an existing efficient liquid distributor cannot control the flow of discharged liquid, the discharging plate is arranged at the bottom of the mounting cylinder, and a plurality of groups of liquid outlet holes are formed in the discharging plate.

The utility model belongs to the technical field of natural gas dehydration, and discloses a visual liquid collecting device which comprises a cylinder body, a high-position connector and a low-position connector are arranged on the cylinder body at intervals in the vertical direction, the high-position connector and the low-position connector are communicated with a high-position liquid level meter connector and a low-position liquid level meter connector of an absorption tower respectively, and a low-position liquid outlet is formed in the bottom of the cylinder body. A plurality of side liquid outlets are uniformly formed in the side part of the cylinder body at intervals in the vertical direction, a groove body structure is formed in one side of the cylinder body in the vertical direction, the groove body structure is communicated with an inner cavity of the cylinder body, the top of the groove body structure is higher than the high-position connector, the bottom of the groove body structure is lower than the low-position connector, and a visible plate is installed in the groove body structure in a sealed mode; the visual liquid collecting device provided by the utility model is convenient to install, can be used for observing the liquid level state, can realize separation of triethylene glycol, hydrocarbon substances and other impurities, and ensures normal operation of a natural gas dehydration device.

The present application relates to etching liquid technical field, specifically to a kind of small key size deviation copper etching liquid composition, by mass percentage, including the following components: hydrogen peroxide, ammonium hydrogen fluoride, 2-mercapto-1,3,4-thiadiazole, imidazole, citric acid, malic acid, ammonium sulfate, triethylene glycol, the rest is deionized water.The mass ratio of 2-mercapto-1,3,4-thiadiazole and imidazole is controlled between 1-2 in the present application, and a complementary adsorption layer is formed, wherein imidazole provides basic corrosion inhibition by covering quickly, 2-mercapto-1,3,4-thiadiazole enhances inhibition by strong bonding, and dynamic protection is achieved by the synergistic effect of the two, which can control the rate, improve uniformity and obtain a bright surface;At the same time, strong inhibition side etching, accurate control of etching morphology, especially anisotropy, to obtain steep sidewall and smooth surface;It can meet the etching demand of small CD bias.

A flux composition containing (A) a nonionic surfactant, (B) an activator, and (C) a solvent, the component (A) being a nonionic surfactant having an HLB value of more than 11 and a freezing point of less than 45 DEG C, and the component (C) containing (C1) triethylene glycol monobutyl ether.

The present invention provides a natural gas triethylene glycol dehydration device and a method for using the same, and belongs to the field of natural gas processing technology. The device comprises a tower body, wherein an artificial ladder platform is installed on the outer surface of the tower body, a box-type motor is installed on one end of the tower body, a servo motor is installed on the top of the tower body, a fan blade tube is installed on the output end of the servo motor, a delivery pipe is installed on one end of the top of the tower body, and an exhaust pipe is installed on the other end of the top of the tower body; the device also comprises a filter separation component, wherein a filter separation component is installed on the bottom of the delivery pipe, and the filter separation component is used to filter impurities and sulfides contained in triethylene glycol. The present invention prevents the residue of liquid and sulfide from corroding the inner wall of the drum by arranging a filter separation component and an electrode shunt component, thereby extending the service life of the device, improving the conveying capacity of the pipeline, increasing the efficiency of dehydration, improving the durability of the recycling of triethylene glycol, and reducing the cost of use.

A flux composition containing (A) a resin, (B) an activator, and (C) a solvent, the component (A) being at least one selected from the group consisting of polyalkylene glycol fatty acid esters and polyglycerol fatty acid esters and having an HLB value of more than 10 and a freezing point of 35 DEG C or less, and the component (C) containing (C1) triethylene glycol monobutyl ether.

The application discloses brake fluid for One-Box brake-by-wire system and a preparation method thereof, the brake fluid comprises triethylene glycol monomethyl ether borate, glycerol acid ester, triethylene glycol monobutyl ether, tetraethylene glycol monomethyl ether, diethylene glycol, anti-rust agent, antioxidant and pH value regulator. The brake fluid can reduce the friction coefficient to <=0.14 under the SRV test condition, the friction coefficient is reduced by 10% compared with that of traditional brake fluid, the abnormal sound and wear problem caused by poor lubrication of the brake system is effectively solved, and the reliability and safety of the brake system of the new energy vehicle are remarkably improved; in addition, the brake fluid also has low temperature kinetic viscosity (-40 DEG C) <=1000mm 2 / s, the pH value is controlled to be 7.5-8.0, and excellent corrosion prevention performance of the product is ensured.

The invention discloses a method for preparing 18-crown-6, which comprises the following steps: under stirring, tetrahydrofuran or 1,4-dioxane is added to a reaction bottle containing triethylene glycol and potassium hydroxide; p-toluenesulfonyl chloride is then added dropwise to the reaction bottle, the reaction temperature is controlled to be 30-80°C, and the reaction time is 2-6h; a separating agent is added to the reaction solution to separate the potassium p-toluenesulfonate by-product, the reaction temperature is controlled to be 70-100°C, and the reaction time is 3-6h; the obtained solution is filtered, concentrated, and vacuum distilled, and the distilled liquid is washed with distilled water and stratified, and the lower layer solution is centrifuged and precipitated, and the precipitate is dried to obtain 18-crown-6. The preparation method of the present invention is simple, and while ensuring a higher reaction rate and a reactant conversion rate, it also simplifies subsequent separation operations, reduces subsequent processing links, and ensures the purity of the final product.

The invention discloses a flame-retardant electrolyte, an electrolyte injection process and a lithium ion battery, the flame-retardant electrolyte comprises: a basic electrolyte, the basic electrolyte comprises a lithium salt and an organic solvent; a cross-linking agent, wherein the cross-linking agent is triethylene glycol dimethacrylate; the flame retardant is 1, 3, 3, 5, 5-pentafluoro-1-ethyoxyl-cyclotriphosphazene, and the flame retardant is 1, 3, 3, 5, 5-pentafluoro-1-ethyoxyl-cyclotriphosphazene; the initiator is azodiisobutyronitrile, and the mass ratio of the initiator to the cross-linking agent is 1: (40-50). According to the flame-retardant electrolyte, through the synergistic effect of the flame retardant and the cross-linking agent, combustion free radicals can be captured to interrupt flame propagation, a three-dimensional gel network can be formed to block heat transfer, meanwhile, the lithium ion conduction efficiency and cycling stability are ensured by optimizing the ratio of the initiator to the cross-linking agent, and the balance of battery safety and electrochemical performance is achieved; and the compatibility with the existing lithium ion battery production process is good, and special equipment does not need to be additionally introduced.

The application discloses a kind of offshore multistage pressure crude oil stabilization and natural gas dehydration system, it is related to offshore oil and gas gathering and transferring technical field.The application includes manifold system, separation system, wet gas compression system, flash gas compression system, triethylene glycol dehydration system and condensate return pipeline.In the application, the condensate separated from each dewar of wet gas compression system and flash gas compression system is pressurized by condensate booster pump and then returns to medium-pressure separator, and is pressure flash evaporated under the pressure gradient of gradually reducing liquid phase, water in condensate is gradually flowed down with the liquid phase of crude oil processing system and removed, light components in condensate are re-gasified and then enter compression system, and finally are uniformly entered triethylene glycol dehydration device for deep dehydration with natural gas, and condensate is mixed into dry gas process after dehydration by coalescing separator, avoiding the problem that mixed gas dew point is unqualified due to insufficient dehydration depth of coalescing separator, causing corrosion of downstream gas pipeline.