21 results about "Methyl diethanolamine" patented technology

The present application relates to a kind of carbon dioxide mineralization method and carbon dioxide mineralization device.The carbon dioxide mineralization method includes the following steps: mixing absorption liquid and industrial solid waste at room temperature, obtain mortar;Make mortar solid-liquid separation, obtain clear liquid and thick slurry;Carbon dioxide in flue gas is absorbed by clear liquid, obtain carbon-rich absorption liquid;Carbon-rich absorption liquid and thick slurry occur mineralization reaction at 180 DEG C-220 DEG C, obtain mineralized slurry;Make mineralized slurry solid-liquid separation, obtain mineralized ash and mineralized clear liquid;Wherein, absorption liquid includes inorganic base and organic base, organic base includes monoethanolamine, diethanolamine, triethanolamine, 3-methylaminopropylamine, N-methyl diethanolamine, piperazine, diethylene triamine, triethylene tetramine, tetraethylene pentamine and 2-amino-2-methyl-1-propanolamine at least two kinds.The method greatly improves CO2 capture rate and CO2 utilization rate, and organic base consumption is less, absorption liquid regeneration energy consumption is low, and overall economy is good.

The application discloses a kind of corrosion and scale inhibitor sulfur removal agent and preparation method thereof, belong to sulfur removal agent technical field, by weight parts including following components: hydroxyl alkyl amine modified triazine compound 30~60 parts, polyaspartic acid scale inhibitor 10~25 parts, sodium gluconate 5~15 parts, ethylenediamine tetramethylene phosphonic acid sodium 3~10 parts, organic phosphonic acid corrosion inhibitor 2~8 parts and water 20~40 parts;The hydroxyl alkyl amine modified triazine compound is prepared by triazine sulfur removal agent and N-methyl diethanolamine or diethanolamine under 50~80 ℃ for 2~4 hours, wherein the molar ratio of triazine sulfur removal agent and hydroxyl alkyl amine is 1:0.3~0.8.The application is prepared by using hydroxyl alkyl amine modified triazine compound as core sulfur removal component, triazine sulfur removal agent and N-methyl diethanolamine or diethanolamine are reacted under specific temperature and time, which greatly improves the capture activity and reaction rate of hydrogen sulfide, and improves water solubility and dispersibility, realizes efficient sulfur removal.

The application belongs to the technical field of reusing industrial solid wastes, and discloses a waste-reusing low-carbon cementing material and a preparation and use method thereof. The cementing material comprises the following components in mass fraction: 40-97 parts of steel slag, 0-50 parts of mineral slag, 0-10 parts of alkali slag, 0-6 parts of lithium slag, 3-15 parts of a solid reinforcing agent, and 0-0.2 parts of a liquid modifier. The solid reinforcing agent comprises the following components in mass fraction: 0-30 parts of carbide slag, 0-30 parts of sodium carbonate, and 10-80 parts of layer silicon. The liquid modifier comprises the following components in mass fraction: 5-20 parts of acrylamide, 5-20 parts of N-methyl diethanolamine, and 60-90 parts of water. The cementing material has relatively optimal hydration and hardening performance, and improves the resource utilization of steel slag.

The present relates to the use of a tertiary amine selected from N-methyl diethanolamine (CAS 105-59-9), N-ethyl diethanolamine (CAS 139-87-7), N-propyl diethanolamine (CAS 6735-35-9), N-butyldiethanolamine (CAS 102-79-4), N-t-butyl diethanolamine (CAS 2160-93-2), dimethyl ethanolamine (CAS 108-01-0), diethyl ethanolamine (CAS 5 100-37-8), dipropylaminoethanol (CAS 3238-75-3), diisopropylethanolamine (CAS 96-80-0), or dibutylethanolamine (CAS 102-81-8), and / or N-(3-Aminopropyl) diethanolamine (APDEA) and / or 2,2′-(octylimino)bisethanol as biocide, wherein the biocide is an anti-microbial agent such as one or more of: bactericide, fungicide, sporicide, algaecide, antiviral, microbially stabilizing agent, including any combination thereof. Also disclosed are additives, compositions and products with said tertiary amines and methods for providing biocidal effect and microbial stability to various products.

The invention relates to a preparation method of quaternary ammonium alkali liquor containing tris-(2-hydroxyethyl) methylammonium hydroxide, which comprises the following steps: by adopting fluid reaction, enabling N-methyldiethanolamine and water as raw materials to react with ethylene oxide for 1-60 minutes at the temperature of-50 DEG C to 50 DEG C through a tubular reactor or a micro-channel reactor to obtain the quaternary ammonium alkali liquor containing THMAH. A tubular reactor or a micro-channel reactor used in the method is a reactor made of a non-metal material or a metal reactor sprayed with a non-metal material, the metal content and purity of N-methyldiethanolamine and water are controlled, and the prepared THMAH does not need to be further purified and can be directly used for a THMAH aqueous solution of the CMP post-cleaning composition, so that the preparation method is simple and convenient, and the cost is low. Through the combined action of the quaternary ammonium base and the organophosphorus chelating agent, complexing with residual pollutants on the surface of the wafer is realized, the water solubility is improved, and the residual pollutants can be removed more easily.

The present application relates to a kind of mixed organic amine absorbent and its preparation method and application, and the mixed organic amine absorbent includes main absorbent, absorption promoter and regulator;The mass ratio of the main absorbent, the absorption promoter and the regulator is (0.3-3.4) :(0.5-2.7) :1;The main absorbent is triethylene tetramine, the absorption promoter is N-methyl diethanolamine, and the regulator is 2-amino-2-methyl-1-propanol.The present application can give full play to the synergistic effect of different kinds of organic amine by the compounding of ternary organic amine and the regulation of the ratio between different organic amine, so that the absorption and loading performance of mixed organic amine absorbent is stronger, the cycle capacity is high, the regeneration energy consumption is lower and the kinetic performance is better.

The application discloses a kind of water-based polyurethane emulsion, raw material includes: blocked polyurethane prepolymer, gallic acid, acetic acid and water;Wherein, blocked polyurethane prepolymer is with blocking agent and the -NCO group in polyurethane prepolymer is reacted to obtain;Blocked polyurethane prepolymer contains hydrophilic chain extender, and hydrophilic chain extender is N-methyl diethanolamine;The ratio of the total number of moles of gallic acid and acetic acid, the number of moles of N-methyl diethanolamine is 1:1-1.02;The molar ratio of gallic acid and acetic acid is 1:1-3.The application also discloses the preparation method and application of the above-mentioned water-based polyurethane emulsion.The application also discloses a kind of synthetic leather water-based slurry.The application also discloses a kind of synthetic leather press variable bass and preparation method thereof.The synthetic leather press variable bass prepared by the synthetic leather water-based slurry disclosed by the application has good hand feeling, air permeability, color fixing performance, and good adhesion, and excellent embossing discoloration.

The invention discloses a nanoparticle modified antibacterial fabric and a preparation method thereof, and relates to the field of fabrics. When the nano particle modified antibacterial fabric is prepared, triethyl phosphite firstly reacts with 1-(1-bromoethyl)-3, 5-bis-trifluoromethyl-benzene, then is polymerized with dimethyl terephthalate, polyethylene glycol-2000, ethylene glycol and N-methyldiethanolamine, and finally reacts with 3-bromopropionyl chloride to prepare modified polyester; the preparation method comprises the following steps: reacting 5-amino-2-sulfydryl benzimidazole with nano graphene oxide to prepare modified graphene oxide; mixing the modified polyester, the modified graphene oxide and zinc acetate, and performing melt spinning, spinning and weaving to obtain the nano particle modified antibacterial fabric. The nano particle modified antibacterial fabric prepared by the invention has flame-retardant, durable and waterproof capabilities.

The application belongs to the technical field of desulfurizer, and discloses a natural gas desulfurizer, a preparation method and application thereof, the natural gas desulfurizer comprises 2-(2-morpholine-4-ethoxy)-ethanol and N-methyl diethanolamine with a molar ratio of (1-3):(2-4). The removal rate of H2S reaches more than 98%, and the removal rate of organic sulfur reaches 70%-75%. The application expands the application range of N-methyl diethanolamine as a main agent, and can be used for refining and removing hydrogen sulfide and organic sulfur in the acidic gas in the natural gas, coal chemical industry and petroleum chemical industry process. The preparation process of the composite desulfurizer is simple, the cost is low, the environmental pollution is small, and the application effect is outstanding.

The invention discloses an anti-degradation type composite amine absorption system suitable for capturing low-pressure industrial flue gas CO2 and a using method of the anti-degradation type composite amine absorption system, and belongs to the technical field of flue gas purification. The composite amine absorption system is composed of a main absorbent, an auxiliary absorbent, a flash agent, an activating agent and an anti-degradation agent; the auxiliary absorbent is composed of monoethanolamine, the expanding agent is composed of aminoethyl piperazine, the activating agent is composed of N-methyldiethanolamine, and the anti-degradation agent is composed of thioether and diamylamine. By compounding the organic amines with different advantages, the absorption capacity of the system is improved, the regeneration energy consumption is reduced, the regeneration rate is increased, the method has the characteristics of high absorption and desorption rate and low regeneration energy consumption, the CO2 capture energy consumption can be effectively reduced, the degradation problem in CO2 capture is inhibited, and the CO2 capture cost is reduced.

The application discloses a preparation method of a cleaning solution composition after IC copper process CMP, wherein the cleaning solution composition comprises: a surfactant, a wetting agent, an organic phosphine chelating agent, an organic amine chelating agent, a quaternary ammonium lye, an organic solvent, a defoaming agent, a pH regulator, and the rest is water; the quaternary ammonium lye is a THEMAH-containing composition directly prepared by the following method, which comprises: taking one or more of methylamine, methyl ethanolamine and methyl diethanolamine as one of raw materials, and reacting with ethylene oxide without a catalyst silica, and the reaction temperature is 20-100 DEG C. The application further discloses a preparation method of the quaternary ammonium lye. The application utilizes the characteristics of reaction self-heat release, is easier to control temperature, is convenient to operate, has lower energy consumption, has less by-products such as ethylene glycol in the product without using a catalyst such as silica, and can reduce the risk of ethylene oxide accumulation. The obtained quaternary ammonium lye containing THEMAH has component content ratios which can directly meet commonly recognized cleaning solution specifications.

A hardening accelerator composition for cementitious compositions comprises a C—S—H seed component comprising a finely dispersed mineral constituent stabilized by a polymeric water-soluble dispersant, the mineral constituent comprising a semi-ordered calcium silicate hydrate having an apparent crystallite size of 15 nm or less, and an alkanolamine selected from diethanolamine (DEA) and methyl diethanolamine (MDEA), or mixtures thereof. The hardening accelerator composition allows for a greater hardening acceleration and promotion of compressive strength development of cement than either agent alone. Said improvement in compressive strength is favorable in view of reducing the amount of cement or to improve production efficiency accompanied by reducing production time.

The invention belongs to the technical field of waterborne polyurethane adhesives, and particularly relates to a high-peel-strength modified waterborne polyurethane adhesive and a preparation method and application thereof.The high-peel-strength modified waterborne polyurethane adhesive is prepared from, by weight, 40-50 parts of isophorone diisocyanate, 50-60 parts of polytetrahydrofuran ether glycol, 20-30 parts of polycaprolactone glycol, modified epoxy resin E-20 and 8-10 parts of active methylene grease. The high-temperature-resistant silicone oil is prepared from the following components in parts by weight: 0.8 to 1.0 part of dimethylolpropionic acid, 25 to 50 parts of hydroxyl silicone oil, 3 to 10 parts of n-methyldiethanolamine, 0.002 to 0.003 part of a dibutyltin dilaurate catalyst, 5 to 10 parts of a neutralizing agent and 200 to 300 parts of deionized water. The weight of the modified epoxy resin E-20 is 5-15% of the weight of the isophorone diisocyanate; the adhesive has the characteristics of high peel strength, excellent water resistance and quick drying.

The invention relates to the technical field of gas purification, and particularly discloses a selective desulfurization and decarburization agent and a preparation method thereof. The preparation method comprises the following steps: S1, melting piperazine, adding N-methyldiethanolamine, uniformly mixing, and cooling to obtain a basic solution; s2, uniformly mixing the basic liquid with N-methyl monoethanolamine, then adding N-methyl diethanolamine and diethanolamine, uniformly mixing, heating to 55-65 DEG C, adding four-arm polyethylene glycol glycidyl ether and potassium hydroxide, keeping the temperature for 2-3 hours, adding an amine active lasting agent, keeping the temperature for 2-3 hours, introducing inert gas in the whole process, and cooling to obtain the selective desulfurization and decarburization agent. The selective desulfurization and decarburization agent prepared by the invention is high in hydrogen sulfide selectivity and relatively low in carbon dioxide co-absorption rate, and targeted removal of hydrogen sulfide can be efficiently realized.

The application belongs to the technical field of resource recycling, and discloses a low-carbon gel material for concrete roads and a preparation method and application thereof. The low-carbon gel material for concrete roads is mainly prepared from the following raw materials in parts by mass: mineral powder 50-65 parts; electrolytic aluminum red mud 15-20 parts; steel slag micro powder 10-15 parts; waste concrete powder 5-10 parts; and composite activator 1-3 parts. The composite activator is composed of Na2SO4 solution, CaSO4, triethanolamine, monoethanolamine and N-methyl diethanolamine. A preparation method of the low-carbon gel material for concrete roads is also provided. The low-carbon gel material is prepared through the synergistic effect of multiple solid wastes, and the resource utilization of multiple solid wastes is realized. Through the synergistic effect of gradient alkali activation and ultrasonic activation, the activation of solid waste is realized, the low-carbon gel material is prepared, and the performance of the low-carbon gel material and the mechanical properties and durability in concrete are improved.

The embodiment of the invention discloses polyurethane reactive dye deepening printing paste as well as a preparation method and application thereof, and belongs to the technical field of textile pigment printing and reactive dye dyeing. The polyurethane reactive dye darkening printing paste is prepared from the following raw materials in parts by weight: 30 to 50 parts of polyoxypropylene ether trihydric alcohol, 40 to 60 parts of polycarbonate diol, 50 to 70 parts of polyester polyol, 40 to 70 parts of isophorone diisocyanate, 10 to 15 parts of N-methyldiethanolamine, 4 to 7 parts of methyl ethyl ketoxime, 0.05 to 0.1 part of dibutyltin dilaurate, 4.5 to 6.5 parts of glacial acetic acid and 500 to 800 parts of water. The polyurethane reactive dye deepening printing paste can improve the dyeing fastness of fabrics, has the characteristics of softness and smoothness, does not influence the original hand feeling of the fabrics, is suitable for printing and dyeing one-step reactive printing of fabrics such as pure cotton, rayon, tencel and the like, and has the advantages of simple process and low cost.

The present application relates to a kind of green paint compositions containing EEP and its preparation method, the green paint compositions containing EEP includes the following mass parts of ingredients: organic resin 60-80 parts, modified polyacrylate 10-40 parts, modified titanium dioxide 10-20 parts, auxiliary agent 1-10 parts, EEP 30-50 parts, water;Wherein, the modified polyacrylate is alkyl acrylate, isocyanate acrylate, polyethylene glycol acrylate, N-methyl diethanolamine reaction obtained;The modified titanium dioxide is polyacrylic acid surface modification titanium dioxide.The various components of the present application are well compatible with matrix resin, can be crosslinked to form stable network structure, improve the various properties of coating, while using green and environmentally friendly 3-ethoxy ethyl propionate as solvent, reduce the potential risk to environment and human body, with good application prospect.

The invention relates to the field of separation and recovery of metals in coal. The invention aims to provide a method for recovering alkali metal, alkaline earth metal and halogen in coal, which comprises the following steps: S1, adding an organic compound solvent into a reactor, and continuously introducing carbon dioxide gas into the reactor to saturate carbon dioxide in the solution to form a carbon dioxide rich solution; the organic compound solvent contains ethanolamine and N-methyldiethanolamine, the total molar concentration is 1-3 mol / L, the ethanolamine accounts for two thirds, and the N-methyldiethanolamine accounts for one third; s2, putting coal particles to be washed into the reactor; and S3, filtering and taking out the immersed coal particles from the reactor, and drying the immersed coal particles to obtain the coal particles from which the alkali metal and the alkaline earth metal are removed. The method disclosed by the invention is simple to operate, mild in condition, low in requirement on a reactor, relatively low in cost and relatively good in removal effect.

The application provides a wet oxidation-based blast furnace gas integrated desulfurization tower equipment and a desulfurization method, which integrates a regeneration section, a fine desulfurization section and a rich liquid collection section in a single tower body, and a composite mass transfer unit containing a lower layer mass transfer component and an upper layer regular filler is arranged in the fine desulfurization section, and a basic absorption solution containing iron salt of ethylenediaminetetraacetic acid, nickel nitrate and N-methyl diethanolamine is used. Through the gradient purification of the lower layer strong turbulence to promote COS hydrolysis and resistance to blockage and the upper layer filler to remove H2S, and the regeneration injector to suck the regeneration gas, the desulfurization regeneration integrated operation is realized, the short process, small land occupation and low energy consumption are achieved, the three kinds of mass transfer combinations are flexibly adapted to complex working conditions, and the deep purification of H2S and COS and the recovery of sulfur resources are realized in cooperation.

The invention discloses a corrosion and scale inhibition sulfur removal agent and a preparation method thereof, and belongs to the technical field of sulfur removal agents, the corrosion and scale inhibition sulfur removal agent comprises the following components by weight: 30-60 parts of a hydroxyalkylamine modified triazine compound, 10-25 parts of a polyaspartic acid scale inhibitor, 5-15 parts of sodium gluconate, 3-10 parts of sodium ethylenediamine tetramethylene phosphonate, 2-8 parts of an organic phosphonic acid corrosion inhibitor, and 20-40 parts of water; the hydroxyalkylamine modified triazine compound is prepared by reacting a triazine sulfur removal agent with N-methyldiethanolamine or diethanolamine at 50-80 DEG C for 2-4 hours, wherein the molar ratio of the triazine sulfur removal agent to hydroxyalkylamine is 1: (0.3-0.8). According to the invention, the hydroxyalkylamine modified triazine compound is adopted as a core sulfur removal component, and the hydroxyalkylamine modified triazine compound is prepared by reacting a triazine sulfur removal agent with N-methyldiethanolamine or diethanolamine at a specific temperature for a specific time, so that the trapping activity and the reaction rate of hydrogen sulfide are greatly improved, the water solubility and the dispersity are improved, and efficient sulfur removal is realized.