8 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 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 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.

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 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.