2883 results about "Diethanolamine" patented technology

An aqueous binder composition, useful for making fiber products, especially fiberglass insulation, comprising an aqueous substantially alkaline (pH of at least 5.0) solution of a polyol and a hydrolyzed (solubilized) copolymer of maleic anhydride and a vinyl aromatic compound, preferably styrene (i.e., a SMA copolymer); the copolymer is solubilized using ammonia, a secondary alkanolamine (preferably diethanolamine (DEA)), a tertiary alkanolamine (preferably triethanolamine (TEA)), or a mixture thereof and the binder composition is cured as a consequence of cross-linking, esterification reactions between pendant carboxyls on the solubilized (hydrolyzed) copolymer (SMA) chains and hydroxyl groups of the polyol, including the diethanolamine and/or triethanolamine preferably used in the solubilization of the SMA.

An aqueous binder composition, useful for making fiber products, especially fiberglass insulation, comprising an aqueous substantially alkaline (pH of at least 5.0) solution of a polyol and a hydrolyzed (solubilized) copolymer of maleic anhydride and a vinyl aromatic compound, preferably styrene (i.e., a SMA copolymer); the copolymer is solubilized using ammonia, an ammine, a primary alkanolamines (preferably monoethanolamine), a secondary alkanolamine (preferably diethanolamine (DEA)), a tertiary alkanolamine (preferably triethanolamine (TEA)), or a mixture thereof and the binder composition is cured as a consequence of cross-linking, esterification reactions between pendant carboxyls on the solubilized (hydrolyzed) copolymer (SMA) chains and hydroxyl groups of the polyol, including the diethanolamine and/or triethanolamine preferably used in the solubilization of the SMA.

The invention relates to a lead free soldering clean free soldering flux with the mass percentage of organic acid activating agent 1. 5-3. 5%, surface active agent 0. 04-0. 6%, organic amine and derivant 2. 0-5. 0%, with the rest being film forming matter. The said organic acid could be one or more of the aliphatic acid mono acid or bi-acid, aromatic acid, or amino acid. The said surface active agent is one or more of the nonion surface active agent, and the said organic amine and the derivant being ethanediamine, tetramethylenediamine, diethyl ethanolamine and so on, with the said film forming material being diethyl ethanolamine or resin. The soldering flux does not have halogen, being environmental protective, good in welding, welding spot being full and luminous, without residue, no corrosion, high in isolation resistance.

The invention provides a method for finishing wool fabric by compositing chitosan/TiO2, which comprises the following steps: A)pretreating fabric; B)preparing composite finishing liquor, taking butyl titanate and dissolving in ethanol, adding diethanolamine, uniformly stirring and adding mixed liquor mixed by ethanol and water, heating, stirring under a backflow state to form nano TiO2 sol; adding chitosan, citric acid and sodium hypophosphate in the nano TiO2 sol, uniformly stirring to obtain the composite finishing liquor; C)finishing wool fabric, placing wool fabric in the composite finishing liquor, dipping and padding twice, wherein mangle expression is 85% and padding temperature is 50-65%; D)predrying; E)baking; F)washing; and G)drying. According to the finishing method, chitosan and nano TiO2 sol are employed as the composite finishing liquor, the finished wool fabric has good antibiosis, shrinkproof, ultraviolet resistance and anti-insolation performances; the finishing method generates no pollution on human body and environment, and the finished wool fabric has good hand feeling.

The invention relates to a sulfur removal agent suitable for the production of an oil-gas well. The sulfur removal agent comprises the following components in percentage by mass: 10 to 25 percent of hexahydro-1,3,5-tris(hydroxyethyl)-s-triazine, 5 to 20 percent of alcohol amine, 5 to 20 percent of small molecular alcohol and the balance of water. The alcohol amine is one or a mixture of more thantwo of monoethanolamine, ethyleneglycol amine, diisopropanolamine, methyldiethanolamine and triethanolamine; and the small molecular alcohol is one or a mixture of more than two of methanol, ethanol and propanol. The sulfur removal agent has a simple formula, can be soluble with water, and can effectively reduce the content of hydrogen sulfide in crude oil or natural gas; simultaneously, productsgenerated by the sulfur removal agent and the hydrogen sulfide are water-soluble, and cannot block a mineshaft and influence the normal production of the oil-gas well; and the sulfur removal agent can achieve effects at the temperature of 30 to 120 DEG C and can be quickly reacted with the hydrogen sulfide.

This invention relates to a method of absorbing SO2 gas by the hydramine carboxylate ion liquid, which belongs to the chemical field. In the normal temperature, the aminoethyl alcohol, diethylehthanolamine, triethanolamine, and the diglycol have neutralization reaction with the acetic acid, lactic acid or the acid with similar structure, and then create a series of corresponding alkaline ion liquor. It cost small balancing time through using that ion liquor or loaded in the carrier to absorb the acid gas SO2.

The invention relates to a method for production of monoethanolamine (MEA) and diethanolamine (DEA), and aims to mainly solve the problem that triethanolamine (TEA) is generated as a byproduct in production of monoethanolamine in the prior art. According to a technical scheme adopted by the method of the invention, a binder-free ZSM-5 zeolite molecular sieve catalyst containing SiO2 and Al2O3 that are in a mole ratio of 10-500 by weight is employed, and raw materials contact with the catalyst to generate triethanolamine-free products. The technical scheme well solves the problem, and can be applied in the industrial production of monoethanolamine (MEA) and diethanolamine.

The invention discloses a hydroxylated tung oil and an ester group-aminated preparation method, belonging to the technical field of organic chemosynthesis. In the method, under a certain condition, ester groups in the tung oil and diethanol amine are subjected to aminolysis reaction on the premise of reserving conjugated double bonds, thus the tung oil is hydroxylated to mainly produce a compound containing terminated hydroxyl and three conjugated double bonds. The structural formula of the compound is shown in the specification. The aminolysis reaction product plays an important role in developing and producing processes of leading the tung oil into waterborne polyurethane, not only can combine the advantages of the tung oil and the polyurethane, but also can improve the utilization ratio of tung oil resources as special local products in China and decrease the dependence on petroleum products; and simultaneously, the method has the advantages of simplicity, practicability, high conversion rate and convenience in industrialized production.

The present invention relates to a method for treprostinil diethanolamine synthesis. The present invention also relates to a novel intermediate used in the method for treprostinil diethanolamine synthesis. The novel intermediate is shown in the following formula (II):

wherein R1 and R2 are described in the description.

The invention, belonging to the technical field of zirconia ceramic, discloses a zirconia ceramic and a preparation method thereof. The ceramic comprises matrix, sintering aid, neodymium oxide and additive, wherein, the matrix is yttria stabilized zirconia, the additive is selected from one or more of zinc oxide, barium carbonate and calcium fluoride, and the diffraction peak of the XRD appears when the 2 theta is 34.8-36.2 degrees. The zirconia ceramic has stable and beautiful purple. The preparation method comprises the following steps: adding neodymium oxide particles in a diethanolamine solution for soaking, then carrying out solid-liquid separation; carrying out ball mill mixing of the matrix, processed neodymium oxide particles, sintering aid and additive, then carrying out die forming and high temperature sintering. The preparation method provided by the present invention is simple and easy, and is suitable for large-scale industrial production.

Nondetonable, or low detonation sensitivity, substantially nontoxic liquid monopropellants are provided. The liquid propellants are formed from aqueous solutions of solid oxidizers in liquid oxidizers and water soluble liquid fuels and formulated to have a freezing point less than −10° C. Liquid oxidizers may be inorganic or organic aqueous solutions, with hydrogen peroxide being preferred. Preferred solid oxidizers are water soluble nitrates including ammonium dinitramide, aminoguanidine dinitrate, ammonium nitrate, hydroxylamine nitrate, hydrazine nitrate, guanidine nitrate and aminoguanidine nitrate. Preferred liquid fuels are water soluble alcohols, amines and amine nitrates, hydroxyethyl hydrazine, hydroxyethylhydrazine nitrate, cyanoguanidine, guanidines, aminoguanidines, triaminoguanidines, and their nitrate salts, ethanolamine dinitrate, ethylenediamine dinitrate, polyvinyl nitrate, and aziridine.

The invention relates to a method for preparing a P type molecular sieve by using coal ash as a raw material. The method for preparing the P type molecular sieve by using coal ash as the raw material comprises the following steps: I, pre-treating and activating coal ash; II, preparing sodium silicate and sodium metaaluminate by using activated coal ash; and III, synthesizing the P type molecular sieve: firstly, uniformly mixing a sodium silicate solution with a sodium salt, then, dropwise adding the sodium metaaluminate solution into the mixed liquid, and finally, adding an organic steric hindering agent and a proper amount of deionized water to form a reaction mixture, wherein the molar ratios of the reaction mixture are as follows: SiO2/Al2O3=0.4-1.8, M/Al2O3=1-5, Na2O/Al2O3=2-4 and H2O/SiO2=20-150 and the organic spatial steric hindering agent is at least one of ethanol amine, diethanol amine and triethanol amine; packing the mixed materials in a polytetrafluoroethylene container, stirring, then putting in a stainless steel reaction kettle, and carrying out hydro-thermal synthesis for 2-8 hours; and taking out products in the reaction kettle, carrying out centrifugal separation and washing by deionized water, and drying to obtain the P type molecular sieve. The method provided by the invention is short in synthetic cost, short in crystallization time and high in yield of the P type molecular sieve.

A microemulsified fuel oil is prepared from fatty acid (or oleic acid) (15 vol.%), triethanolamine (or biethanolamine) (2 vol.%), isopentanol (3 vol.%), water (20 vol.%) and diesel oil (60 vol.%). Its advantages are low cost, little harmful gas, and long service life of diesel engine.

The invention relates to a cation-nonionic mixed aqueous polyurethane emulsion and a preparation method thereof. The emulsion is aqueous polyurethane which has a cation hydrophilic group and a nonionic hydrophilic side chain. The preparation method comprises the steps of firstly introducing the nonionic hydrophilic side chain by using a specific nonionic hydrophilic chain extender; and introducing the cation hydrophilic group by using a cation hydrophilic chain extender, wherein the amounts of the nonionic hydrophilic chain extender and the cation hydrophilic chain extender respectively account for 1-10 percent and 1-8 percent according to the total weight of the raw materials, and the specific nonionic hydrophilic chain extender is 3-(N,N-dihydroxyethyl) amino-propionic acid polyethyleneglycol monomethyl ether ester which is prepared by heating and reacting methoxy polyethylene glycol single methyl acrylate and diethanol amine in a molar ratio of 1:1. By using the emulsion, the defect of the existing emulsion is overcome, and the requirement of zinc-plating steel plate chromium-free passivation pretreatment on aqueous polyurethane resins are met, so that the cost is reduced.

The invention relates to the field of metal cutting liquids, in particular to an aluminium alloy cutting liquid with a long service life and a preparation method thereof. The semi-synthetic cutting liquid provided by the invention is prepared from 10 to 30 percent of mineral oil, 5 to 15 percent of alcohol amine, 5 to 12 percent of an emulsifying agent, 3 to 8 percent of an anti-rusting agent, 3 to 10 percent of a lubricating agent, 1 to 4 percent of a corrosion inhibitor, 1 to 4 percent of an extreme pressure agent, 0.5 to 1 percent of a defoaming agent, and 1 to 3 percent of a sterilizing agent. According to the formula of the aluminium alloy cutting liquid, conventional monoethanolamine, diethanol amine and triethanolamine serving as pH regulating agents are abandoned, and through a special compounding mode, the aluminium alloy cutting liquid has higher stability, and the cost is reduced. Secondly, the using amount of the extreme pressure agent is reduced by regulating the using amounts of various raw materials; moreover, excellent corrosion preventing and lubricating effects of the cutting liquid are maintained; the cutting liquid can be used for a long time; the replacement period of the cutting liquid provided by the invention is about one year; the cutting liquid is environment-friendly and has extremely low damage to a human body.

The invention relates to an adhesive remover and a preparation method thereof. The basic composition of the adhesive remover formula is as follows in percentage by weight: 12-25% of fatty alcohol-polyoxyethylene ether sodium sulfate and fatty alcohol-polyoxyethylene ether silane, 20-30% of alkylphenol polyoxyethylene ether, 4-5% of ethylene oxide/propane segmented copolymer, 5-7.9% of sodium chloride, 10-12% of triethyl phosphate and dimethyl adipate, 5-10% of tricarboxyl triethylamine, triethylamine, diethanol amine, EDTA, urea, triethanolamine and hexamethylene tetramine, 2-10% of ethylene glycol, butyl cellosolve, propylene glycol methyl ether, ethanol, isopropanol, benzyl alcohol and methyl isoamyl ketone and 0.1-42% of deionized water. Compared with the prior art, the invention has the advantages that the adhesive remover is aqueous and low irritating, is wide in application range, can rapidly remove various trade mark adhesives, eliminate adhesiveness, degrease, remove adhesive and deliquate adhering oil stain in the aspect of removing advertising posters on the surfaces of glass, ceramics, marbles, stainless steel, etc. The invention also provides an environment-friendly and safe method for preparing the adhesive remover.

The invention relates to a metal anti-rust agent which is characterized by comprising the following components in parts by weight: 10-20 parts of inositol hexaphosphate, 8-15 parts of acrylamide, 6-14 parts of diethanol amine, 5-10 parts of a polymer film-forming agent, 4-8 parts of sodium molybdate, 1-3 parts of cresyl triazole, 0.5-1.5 parts of a surfactant and the balance amount of water. The metal anti-rust agent has the characteristics of wide application range, stable anti-rust effect, convenience in use, high efficiency, safety, environmental friendliness and the like.

An o-chloroaniline production method takes o-nitrochlorobenzene as raw material and is characterized in that the o-nitrochlorobenzene is dissolved in alcohol solvent in the presence of catalyst and additive and reacted with hydrogen at 10-120 DEG C and under 0.3-4.0 MPa; the reaction process is continuous reaction; after the completion of the reaction, the o-chloroaniline is obtained through treatment, wherein, the catalyst can be selected from one of the following: Ni/Al2O3, Raney Ni, Pt/C and Pd/C; while the additive can be selected from one, or two, or three of the following compounds: cyclohexylamine, ethylenediamine, ethanolamine, diethanolamine, triethanolamine, pyridine, liquid ammonia, ammonium bicarbonate, ammonium carbonate, sodium carbonate, sodium bicarbonate, potassium bicarbonate, potassium carbonate, potassium hydrogen phosphate, potassium dihydrogen phosphate, sodium hydrogen phosphate and sodium dihydrogen phosphate; the dosage of the catalyst takes up 0.05% to 20% of the mass of the o-nitrochlorobenzene; the dosage of the additive takes up 0. 5% to 20% of the mass of the o-nitrochlorobenzene; the alcohol can be methanol or ethanol; the dosage of alcohol takes up 30% to 150% of the dosage of the o-nitrochlorobenzene; the continuous reaction is realized through 1 to 6 tank reactors which are connected in series.

The invention provides sacubitril derivatives and medicine compositions, preparation methods and application thereof and belongs to the fields of medicine compounds and preparation thereof. The sacubitril derivatives comprise sacubitril lithium salt, sacubitril kali salt, sacubitril magnesium salt, sacubitril calcium salt, sacubitril strontium salt, sacubitril zinc salt, sacubitril ferric salt, sacubitril ammonium salt, sacubitril diethylamine salt, sacubitril ethylenediamine salt, sacubitril piperazine salt, sacubitril N-(2-ethoxyl)-pyrrolidine salt, sacubitril choline salt, sacubitril cholamine salt, sacubitril diethanol amine salt, sacubitril triethanolamine salt, sacubitril tromethamine salt, sacubitril meglumine salt, sacubitril diisopropylamine salt, sacubitril tert-butylamine salt, sacubitril N, N'-bis-benzyl ethylenediamine salt, sacubitril L-lysine salt, sacubitril L-arginine salt or sacubitril L-histidine salt.

The invention provides a dispersant used for wet grinding of heavy calcium carbonate and the preparation method thereof. The dispersant is composed of Alpha and Beta-unsaturated carboxylic acid of 80 to 100 parts by weight, and other monomers of 0 to 20 parts by weight, which are polymerized together, and a neutralizing agent in the polymer is selected from one or two of inorganic base ammonium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide, etc., or organic base diethylamine, triethylamine, mono ethanolamine, diethanolamine, triethanolamine, etc. The dispersant of the invention is used for grinding calcium carbonate pulp with high solid content, low viscosity and good time efficiency and stability.