213 results about "Ethanolamines" patented technology

The invention relates to a corrosion and scale inhibitor for TRT and a preparation method of the corrosion and scale inhibitor, and relates to the technical field of chemical reagents. The corrosion and scale inhibitor is prepared from the following components in percentage by mass: 15 to 20 percent of morpholine, 25 to 30 percent of aminoethyl ethanolamine, 15 to 20 percent of 1-hydroxyethyl-2-undecylimidazoline onium salt, 12 to 18 percent of sodium polyaspartate, 8 to 12 percent of itaconic acid-allylsulfonic acid copolymer, 1 to 3 percent of alkyl glycoside and the balance of a mixture of water and glycerol in a mass ratio of 1 to (1 to 3). The corrosion and scale inhibitor disclosed by the invention can synchronously inhibit corrosion of an acid medium and scale deposition of salts such as NH4Cl and the like, and the corrosion inhibition rate and the scale inhibition rate are effectively improved.

The invention relates to the technical field of polyurethane adhesives, in particular to the field of IPC C09J175, and more particularly relates to a small molecule chain extender, a preparation method thereof and red polyurethane adhesive. The small molecule chain extender is prepared from the following raw materials: dichloroanthraquinone and ethanolamine, and the red polyurethane adhesive is prepared from the small molecule chain extender, polyol, isocyanate and a solvent. A red colored group is introduced into a polyurethane molecular chain, and the colored group is used as a part of a chain extender, so that the color migration resistance and the transparency are improved at the same time.

The invention discloses a preparation method of antibacterial modified polylactic acid for a packaging material, and belongs to the technical field of functional modification of polylactic acid.The preparation method comprises the steps that an antibacterial barrier type polylactic acid composite material is prepared through ring opening polymerization of an initiator, grafting of antibacterial molecules and blending of montmorillonite, a chlorine-terminated initiator is generated from ethanolamine and chloroacetyl chloride, and the antibacterial modified polylactic acid is prepared; the preparation method comprises the following steps: initiating ring-opening polymerization of L-lactide to form polylactic acid with terminal group activity, covalently grafting terminal group chlorine with an antibacterial modifier through nucleophilic substitution, endowing the polylactic acid with antibacterial property, coupling modified montmorillonite with silane through organic intercalation, and then carrying out melt blending with the modified polylactic acid with antibacterial property to form a layered barrier structure and enhance interface bonding. Therefore, the film has the advantages of high barrier property, high tensile strength, excellent antibacterial activity and good degradability.

The invention relates to the technical field of polyester, in particular to a modified POSS (Polyhedral Oligomeric Silsesquioxane) flame-retardant regenerated polyester fiber and a preparation method thereof, the modified POSS flame-retardant regenerated polyester fiber contains hydroxylated modified regenerated polyester chips, amino-phosphorus oxide double modified POSS, a functional compatilizer, a doped synergistic flame retardant, a compound antioxidant and a composite dispersant; the modified POSS takes octamer siloxane as a core and is grafted with amino and phosphorus-oxygen groups; r-PET is modified by ethanolamine, and r-PET, r-PET and the synergistic flame retardant construct a ternary nano-network barrier, so that efficient and lasting flame retardance and balance of mechanical properties are realized. The compatibility of the flame retardant and r-PET is improved, and processing stability is guaranteed; the constructed network barrier enhances the flame-retardant durability, repairs r-PET molecular defects, retains mechanical properties, is halogen-free and more environment-friendly, and broadens the application scene of the r-PET fiber.

The invention belongs to the field of biofuel preparation through grease hydrogenation, and provides a catalyst for biofuel preparation through waste grease one-step hydrogenation and a preparation method of the catalyst. The catalyst is a non-supported NixMoyWz-kHY catalyst, and the preparation method of the catalyst comprises the following steps: uniformly mixing a nickel source, a molybdenum source and a tungsten source according to a certain proportion, adding deionized water and a reaction aid ethylene glycol, dissolving, heating, stirring, adding an ammonia water-ethanolamine mixed solution, complexing, steaming until the pH value of the solution is 7-8, and filtering to obtain the catalyst. And adding a certain amount of HY molecular sieve powder, methyl cellulose (MC) and citric acid into the solution, filtering the reaction solution, drying the filter cake at 120 DEG C, performing extrusion molding, and roasting to obtain the catalyst. The catalyst provided by the invention effectively solves the problems of high oxygen content, difficulty in deep isomerization and the like in the waste oil and fat, has the functions of hydrodeoxygenation, cracking and isomerization at the same time, and realizes one-step conversion of the waste oil and fat into biological aviation kerosene and biodiesel. Besides, the non-supported catalyst adopted by the invention has high-activity center density, the problems of aging and shedding of the carrier are not needed to be worried about, and the preparation method of the catalyst is simple, environment-friendly and pollution-free, and meets the requirements of industrial preparation.

The application discloses a liposome of a FOXO1 inhibitor AS1842856 and a preparation method and application thereof. The liposome comprises the following raw materials: phospholipid, cholesterol, phospholipid PEG derivative and AS1842856; wherein the proportion of the phospholipid, the cholesterol and the phospholipid PEG derivative (for example, distearoyl phosphatidyl ethanolamine-polyethylene glycol 2000 (DSPE-PEG2000)) is preferably in the range of 10:0.2-2:0.5-5 (w / w); wherein the AS1842856 is wrapped in the liposome. The AS1842856 liposome of the application has excellent physical and chemical properties and has a wide application prospect in the field of fibrosis disease treatment.

The invention provides a metabolic marker for auxiliary diagnosis of schizophrenia, a construction method and application. Wherein the metabolic marker comprises lysophosphatidylcholine (LPC) (17: 0 / 0: 0), oleamide, lysophosphatidyl ethanolamine LysoPE (18: 0 / 0: 0), palmitamide, lysophosphatidyl ethanolamine LysoPE (0: 0 / 20: 4), lysophosphatidyl ethanolamine LysoPE (22: 6 / 0: 0), p-methylphenol sulfate, lactic acid, 3-hydroxybutyric acid, lysophosphatidyl ethanolamine LysoPE (18: 2 / 0: 0), lysophosphatidyl ethanolamine LysoPE (16: 0 / 0: 0) and sphingosine 1-phosphate. By utilizing the metabolic marker, auxiliary diagnosis of schizophrenia can be rapidly and accurately completed in the early stage of disease attack.

The application belongs to the technical field of electrophoretic paint, and provides a polyurethane modified epoxy resin cathode electrophoretic paint and a preparation method thereof.The cathode electrophoretic paint comprises a cationic water-based resin emulsion, a blocked isocyanate crosslinking agent, a pigment paste, an additive and deionized water.The solid resin in the cationic water-based resin emulsion comprises polyurethane modified epoxy resin, the polyurethane modified epoxy resin comprises a bisphenol A type epoxy resin skeleton and polyurethane segments connected to the skeleton, the polyurethane segments contain tertiary amine groups introduced by N,N-dimethyl ethanolamine, and the tertiary amine groups are connected to the epoxy resin skeleton through urethane bonds formed by reaction of isocyanate groups with hydroxyl groups in the bisphenol A type epoxy resin skeleton.The application can reduce local enrichment of polyurethane soft segments and cationic hydrophilic groups in the deposited film, and reduce formation of low crosslinking density penetration channels in the cured paint film.

The invention discloses an ethanolamine modified KMnF3at-Zn-MOF-74 mixed matrix membrane and a preparation method thereof, and belongs to the technical field of gas separation membranes. According to the method, KMnF3 nanoparticles serve as a core, Zn-MOF-74 grows on the surface of the KMnF3 nanoparticles in situ, and KMnF3-coated Zn-MOF-74 of a core-shell structure is obtained. Then, ethanolamine is used for carrying out amination modification on the Zn-MOF-74, so that-OH and-NH2 in the ethanolamine are subjected to coordination or hydrogen bond interaction with open metal sites of the Zn-MOF-74, and the polarity of the filler and the interfacial compatibility with Pebax-1657 are remarkably improved. The modified KMnF3 (at) Zn-MOF-74 is uniformly dispersed in a Pebax-1657 polymer matrix, so that the Pebax-1657 mixed matrix membrane of the ethanolamine modified KMnF3 (at) Zn-MOF-74 is prepared, and the selectivity and the permeability of a CO2 / N2 system are remarkably improved. The preparation process is mild, simple and convenient, the controllability is high, and the obtained membrane is stable in structure and excellent in performance and can be widely applied to the field of CO2 capture and separation.

The invention discloses a short-contact washing agent for treating scalp seborrheic dermatitis and bacterial folliculitis, and relates to the technical field of external preparations and scalp care, the short-contact washing agent comprises the following components by weight: an active component combination: 0.01-0.05 wt% of halcinonide; 0.5 to 1.0 wt% of piroctone ethanolamine; 0.1 to 0.3 wt% of total alkaloids of sophora flavescens; 0.05 to 0.1 wt% of berberine; standardized traditional Chinese medicine effective part extracts are compounded with modern active ingredients, and the problem that the quality difference between batches of traditional Chinese medicine lotion is large is solved. The combination of a plurality of active components aims to synergistically act on a plurality of targets such as anti-inflammation, antibiosis and oil control, so as to comprehensively improve the scalp condition. In addition, the specific semi-solid colloid dosage form improves the staying performance of the product on the scalp, and aims to improve the refreshing feeling after use while ensuring the cleaning effect. The lotion provides a hormone-containing and hormone-free double-version design, and provides choices for requirements of different severity degrees and different use stages.

The invention relates to the technical field of cosmetics, in particular to a moisturizing mask with a repairing effect and a preparation method of the moisturizing mask, and mask liquid comprises a sensitive skin repairing composition, an auxiliary effect system, a thickening system, a moisturizing system, a grease system, a buffer system and purified water. The sensitive skin repairing composition is prepared from chamomile oil, tea tree oil, a radix gentianae extract, a herba centellae extract, 4-tert-butyl cyclohexanol, butanediol, phosphatidyl ethanolamine and cardiolipin, phosphatidyl ethanolamine is modified, and the weight ratio of all the components is adjusted, so that the sensitive skin repairing composition is prepared. The traditional Chinese medicine composition has the advantages that various components in the composition are coordinated to play the optimal anti-inflammatory, anti-allergy, analgesic and repairing functions, exogenous stimulation, nerve stress response and inflammatory response are reduced, the self-protection mechanism is strengthened, the skin barrier is repaired, the oxidative stress capability is further strengthened, and the composition has more excellent high-temperature and low-temperature stability; the traditional Chinese medicine composition is natural and safe, and does not generate side effects such as dependence and drug resistance after long-term use.

The present application relates to a kind of biodegradable hydraulic oil composition and its preparation method, it includes the following weight parts of component: biodegradable base oil 96.0-98.5 parts and composite detergent 1.5-2.5 parts;The base oil is the mixture of pentaerythritol tetraester and trimethylolpropane triester, fatty acid chain is C8-C10 saturated fatty acid, saturation ≥90%, 28 days biodegradability meets the determination of OECD 301B;The composite detergent includes: octylated diphenylamine 0.45-0.90 parts, 2,6-di-tert-butyl-4-methylphenol 0.10-0.25 parts, 2-ethylhexyl acidic phosphate and its ethanolamine salt 0.60-1.20 parts, dodecenyl succinic acid di (2-ethylhexyl ester) 0.15-0.35 parts, and the mass ratio of octylated diphenylamine and 2,6-di-tert-butyl-4-methylphenol is 1.5:1~4:1.

The present invention relates to ophthalmic compositions comprising at least one substance of at least one nicotinic acetylcholine receptor (nAChR) modulator, in particular varenicline, megamine and derivatives thereof, and / or the endogenous Kennedy metabolic pathway, as well as salts and derivatives or pharmaceutically acceptable salts of these substances, and choline-containing phospholipids, salts and derivatives of these substances. From these groups, particularly preferred are choline, phosphocholine, CDP-choline (citicoline), phosphatidylcholine (e.g. Lecithin having a phosphatidylcholine content of > = 80% by weight, e.g. Soybean lecithin), ethanolamine, phosphoethanolamine, CDP-ethanolamine, phosphatidylethanolamine, L-alpha-glycerophosphorylcholine, phosphatidylcholine, phosphatidylethanolamine.

The invention relates to the technical field of environmental control, in particular to an organic amine volatile gas online detection system and method, which can be used for online monitoring and targeted optical detection of volatile components based on an organic amine solution in a carbon dioxide capture system. According to the on-line detection system and method for volatile gas of the organic amine solution, waste gas in a carbon capture outlet or a desorption tower outlet pipeline is collected and subjected to pretreatment of the temperature, the flow and the like of sample gas, and finally the volatile gas of the organic amine solution is detected by utilizing the differential absorption characteristic of ethanolamine in an ultraviolet band. And online and automatic measurement and alarm of ethanolamine concentration are realized through a UV-DOAS ultraviolet difference method.

A process for the manufacture of ethyleneamines and ethanolamines, comprising the steps of (i) converting a glycolaldehyde derivative of formula (II), in which R2, R3 are—the same or different—hydrogen, alkyl, such as C1-6-alkyl, or cycloalkyl such as Cs-e-cycloalkyl; and an animating agent of formula (III); in which R1 is hydrogen (H), alkyl, such as C1-6-alkyl, or cycloalkyl such as C3-6-cycloalkyl, in the gas or liquid phase; (ii) feeding the reaction products obtained in step (i) into a hydrogenation reactor, where the reaction products are converted with hydrogen in the presence of a hydrogenation catalyst.

The invention relates to the technical field of chemicals for daily use, and particularly discloses antibacterial shampoo decocted from Miao herbal medicine and a preparation technological process. The formula system of the shampoo comprises a phase A, a phase B and a phase C, three core functional components including a chemical anti-dandruff agent piroctone olamine salt, a seedling herbal medicine composite extract and a camellia seed nourishing component are innovatively compounded in the phase C, and through the matching of the components in a specific proportion, the components generate a remarkable synergistic interaction effect; experimental results show that the shampoo not only can strongly inhibit scalp pathogenic bacteria malassezia, has an anti-dandruff effect superior to that of a traditional ZPT anti-dandruff agent formula, but also can remarkably improve the smoothness of hair and reduce carding damage, in addition, due to the introduction of the natural herbal medicine extract, the product mildness is remarkably improved, no irritation is caused to mucous membranes, and the shampoo has a good anti-dandruff effect. The comprehensive effect of removing dandruff, protecting hair and nourishing skin is achieved, and the technical problem that a traditional dandruff-removing shampoo is single in effect or strong in irritation is solved.

The invention discloses a cell culture medium supplement as well as a preparation method and application thereof, and relates to the technical field of cell biology. The supplement comprises DL-alpha-tocopheryl acetate, linolenic acid, ethanolamine, L-carnitine hydrochloride, 3, 3 ', 5-triiodoL-sodium thyrosinate, and serum albumin. As a cell culture additive with definite chemical components and simple composition, the cell culture additive can replace a traditional culture system with unknown chemical components or too complex composition, and is used for supporting proliferation, differentiation and characterization analysis of cells. The culture medium additive is clear in chemical component, simple to prepare, stable in effect and relatively low in cost, can promote in-vitro proliferation and oxidation resistance of cells including human embryonic stem cells and mesenchymal stem cells, and has important application value in actual production.

The invention discloses a method for in-situ toughening polylactic acid by using recycled oligomer and an obtained tough material, and the method comprises the following steps: firstly, carrying out ammonolysis reaction on ethanolamine and waste polylactic acid in a molten state by controlling reaction conditions to obtain polylactic acid ammonolysis oligomer containing terminal hydroxyl; the polylactic acid ammonolysis oligomer, a new polylactic acid material and diisocyanate are subjected to melt blending, the diisocyanate reacts with terminal hydroxyl groups of the polylactic acid ammonolysis oligomer and the new polylactic acid material, polyurethane is generated in situ, and the toughened modified polylactic acid material is obtained. By constructing a green and simple degradation-regeneration integrated process, synchronous strengthening and toughening of the PLA in the recovery process are achieved, the strength of the PLA material is not sacrificed while the toughness of the PLA material is remarkably improved, an economical and feasible scheme is provided for high-value recovery of the PLA, and the method is more expected to break through the performance bottleneck of the PLA material and expand the application range of the PLA material.

A process for the preparation of ethanolamines comprises the steps of (1) providing an amine-water solution, (2) preheating the amine-water solution in a preheater to form a reactor inlet composition, (3) feeding the reactor inlet composition to the inlet of a plug flow reactor having an inlet and an outlet downstream of the inlet, (4) injecting ethylene oxide into the plug flow reactor at the inlet and / or one or more positions intermediate of the inlet and the outlet thereof to form a reaction mixture, (5) reacting the reaction mixture in the plug flow reactor to form an effluent mixture comprising ethanolamines, and (6) collecting the effluent mixture at the outlet of the plug flow reactor. The process can be readily adapted to changing amine to ethylene oxide ratios, operates efficiently at high amine to ethylene oxide ratios and produces a quality, on-spec product.

The invention discloses an anhydrous liquid-liquid phase change absorbent for carbon dioxide capture, and a preparation method and application thereof, and belongs to the technical field of carbon dioxide recovery. The invention relates to an anti-freezing agent which comprises the following components in percentage by weight: 20-30% of diglycolamine, 20-50% of dimethylethanolamine, 10-40% of dimethyl sulfoxide and the balance of a physical regulator. The anhydrous liquid-liquid phase change absorbent for capturing carbon dioxide in flue gas provided by the invention has the characteristics of high CO2 absorption capacity, short phase splitting time, high desorption rate and low CO2 rich phase viscosity after absorption, and the regeneration energy consumption of the absorbent can be greatly reduced. The optimal desorption temperature is 110 DEG C, the minimum regeneration energy consumption reaches 2.26 GJ / tCO2, the maximum desorption rate is 3.12 mmol CO2 kg <-1 > s <-1 >, the phase splitting time is 120-180 s, and the maximum CO2 absorption capacity can reach 3.23 mol / L.

This invention belongs to the field of polymer material additives, and provides a fluorescent whitening agent anti-migration stabilizing excipient and its preparation method. The method involves intercalating 4,4'-bis(2-sulfonate sodium styryl)biphenyl into a zinc-aluminum layered double hydroxide, and then surface-coating it with ethanolamine-modified polypropylene grafted with maleic anhydride compatible components. This is followed by melt granulation with a polypropylene carrier resin, bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, and 2-(2H-benzotriazol-2-yl)-4,6-di-tert-amylphenol. This achieves low migration, high retention, and stable dispersion of the fluorescent whitening agent, solving the problems of easy migration, insufficient thermo-photoaging stability, and difficulty in balancing processing window and toughness in polypropylene systems. This method is suitable for the industrial preparation and application of polypropylene whitening modified materials.

The present application relates to the technical field of porous carbon material, and particularly discloses silver nanoparticle composite microporous carbon spheres, a preparation method and application thereof.The silver nanoparticle composite microporous carbon spheres are prepared by using ethanolamine as a catalyst, triblock copolymer P123 as a surfactant, and silver nitrate added to the reaction system, and then carbonization is performed to obtain the silver nanoparticle composite microporous carbon spheres.The preparation method is simple, the cost is low, and the yield is high.The silver nanoparticle composite microporous carbon spheres prepared by the present application have a significantly increased specific surface area compared with other types of carbon materials, have a multi-level pore structure, can form a stable conductive network structure by using the strong conductivity and rigidity characteristics, significantly improve the diffusion and transportation rate of carriers, and provide a new idea for developing efficient and inexpensive counter electrode materials.

The present application belongs to the field of biomedicine, and relates to an inducer for inducing mesenchymal stem cells to differentiate into estradiol-secreting cells. The inducer for inducing mesenchymal stem cells to differentiate into estradiol-secreting cells is based on a human mesenchymal stem cell serum-free culture medium, and is composed of the following components in a mass concentration ratio: bone morphogenetic protein-4 20-60 mg / L, bone morphogenetic protein-7 20-60 mg / L, tretinoin 2-8 mg / L, resveratrol 2-8 mg / L, icariin 2-8 mg / L, benzamide 2-8 ug / L, chloroplatinic acid hexahydrate 2-8 ug / L, ethanolamine 2-8 ug / L, erythropoietin 2-10 ug / L, and vascular endothelial growth factor 2-10 ug / L. The inducer for inducing mesenchymal stem cells to differentiate into estradiol-secreting cells has high induction efficiency.

The invention relates to the field of waste liquid treatment, and particularly discloses a DMF (Dimethyl Formamide)-containing waste liquid recovery process. The invention relates to a DMF-containing waste liquid recovery process. The process comprises the following steps: S1, coarse steaming treatment; s2, light component removal treatment; s3, heavy component removal treatment: adding an alkaline amine compound into the first kettle residual liquid obtained in S2, and heavy component removal; and S4, carrying out secondary coarse steaming treatment to obtain a DMF product. In the recovery process, the temperature, the pressure and the ethanolamine addition amount of each process are precisely matched, so that the separation efficiency is ensured, the energy consumption is reduced, closed-loop cooperation of physical separation-chemical corrosion prevention-secondary purification is formed, efficient recovery of DMF is realized, the recovery purity meets the industrial requirements, and the method is suitable for industrial production. Meanwhile, the equipment corrosion contradiction in the high-temperature rectification process is effectively relieved, the process meets the industrial production requirement, high-purity DMF can be obtained, the recovery rate is not lower than 95%, and the purity is not lower than 99.9%.

The application discloses a novel and powerful inhibitor of fatty acid amide hydrolase (FAAH), pyridinone compound (formula I) and therapeutic effect thereof in related diseases, and belongs to the technical field of biological medicine. The inhibitor can inhibit the biological activity of fatty acid amide hydrolase (FAAH), increase the physiological concentration of endogenous arachidonic acid ethanolamine, and play the roles of regulating immunity and resisting inflammation; for example, in inflammatory bowel disease, the inhibitor can significantly improve various pathological and physiological indexes of animals in an inflammatory bowel disease (IBD) model, slow down the progress of the disease, and be effectively used for treating multiple types of inflammatory bowel disease (IBD) including ulcerative colitis (UC) and Crohn's disease (CD).

A substrate for culturing cells that comprises a modified prolamin having a net positive charge is provided. The modified prolamin may be a prolamin that has been modified through amidation or esterification, such as the addition of a methyl-ester group or an ethanolamine group. The modified prolamin is animal-free may be food-grade and / or may be free of cross-linkers. The modified prolamin may be in a coating that can be applied to a surface for culturing adherent cells, such as a microcarrier (e.g., beads) or well plates. Substrates coated with the modified prolamin are able to support cell expansion and can be used for food-grade applications such as cultured meat.

The application discloses a preparation method of rutile titanium oxide long fibers, and belongs to the field of titanium oxide preparation. The preparation steps comprise the following steps: mixing titanium chloride, ethylene glycol and ethanolamine, stirring and refluxing, filtering to obtain a clear and transparent solution, rotary evaporation of the clear and transparent solution to obtain a concentrated rectification product, mixing the rectification product with ethyl methyl ketone, adding deionized water into the mixture, stirring and refluxing to obtain an organic titanium solution; adding polyvinyl alcohol into the organic titanium solution, uniformly stirring to obtain a stable spinning solution, electrospinning, heat treating the fibers after spinning to obtain rutile titanium oxide long fibers. The titanium oxide fibers prepared by the method are of rutile structure, the fibers are continuous, not adhered to each other and smooth in surface, the preparation method is simple, suitable for industrialization, and has a wide application prospect.

The invention provides an anti-neuroinflammation medicine as well as a preparation method and application thereof. The anti-neuroinflammation medicine comprises an active component and lipidosome, the active component is an inhibitor 4-aminobenzoyl hydrazine of myeloperoxidase; the liposome is prepared from phospholipid, cholesterol and distearoyl phosphatidyl ethanolamine-thioketal-polyethylene glycol; the method comprises the following steps: weighing lipidosome and 4-aminobenzoyl hydrazine, dissolving, and carrying out rotary evaporation to obtain a lipid membrane; adding a phosphate buffer solution into the lipid membrane, stirring in a water bath, performing ultrasonic treatment, filtering, centrifuging and purifying to obtain the medicine, according to the active oxygen response-based liposome delivery system disclosed by the invention, 4-aminobenzoyl hydrazine is encapsulated in liposome to form a drug, and after the drug enters a brain inflammation microenvironment area of the Alzheimer's disease, the active oxygen can break a thioketal bond, so that local release of 4-aminobenzoyl hydrazine is triggered, targeted inhibition of myeloperoxidase is realized, and the drug delivery effect is improved. The oxidative stress level is reduced, the neuroinflammation is relieved, and the cognitive impairment is effectively improved.

The present invention relates to an ethanolamine production system, which comprises: a reaction unit, which comprises a first reactor, a first reaction cooler, a second reactor, a second reaction cooler and a third reactor connected in series, and the first reactor, the second reactor and the third reactor are respectively provided with an ethylene oxide feeding port; the inlet end of the reactor gas-liquid separation tank is connected with the outlet end of the third reactor; the ammonia enrichment unit is provided with an ammonia supplement port, a circulating ammonia recovery port, a circulating dilute ammonia water recovery port and an enriched ammonia water outlet; the circulating ammonia gas recovery port is connected with the gas phase outlet end of the reactor gas-liquid separation tank; the enriched ammonia water outlet is connected with the first reactor; the dehydration unit is provided with a reaction liquid recovery port connected with the liquid phase outlet end of the reactor gas phase separation tank, an ammonia water circulating outlet connected with a circulating dilute ammonia water recovery port and a reaction product output port connected with the refining unit. According to the method, the ratio of MEA, DEA and TEA of ethanolamine products can be adjusted, and the method has the characteristics of low reaction energy consumption and high comprehensive utilization efficiency of raw materials.

The invention discloses a functional core-spun yarn containing camel hair and a preparation method of the functional core-spun yarn. The functional core-spun yarn comprises modified camel hair fibers, N-acetyl ethanolamine, a softening finishing agent, an antistatic agent, a lubricant and a resultant yarn stabilizing aid. The modified camel hair fiber is characterized in that camel hair fiber is used as a matrix and is synergistically modified by a polyphenol compound, a nitrogen-containing organosilicon compound and a metal salt cross-linking agent, and a stable functional modified layer is formed on the surface of the fiber; meanwhile, N-acetyl ethanolamine is introduced into a core spun yarn system to adjust the microenvironment on the surface of the fiber. The functional covering yarn is prepared through a covering spinning process. The natural softness and warm keeping characteristics of the camel hair are kept, meanwhile, the resultant yarn stability, the rebound recovery performance, the antistatic performance and the washable performance of the covering yarn are remarkably improved, and good application prospects are achieved.