2799 results about "Ethanolamine" 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, 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.

A reactor system for the epoxidation of ethylene, which reactor system comprises an elongated tube having an internal tube diameter of more than 40 mm, wherein contained is a catalyst bed of catalyst particles comprising silver and a promoter component deposited on a carrier, which promoter component comprises an element selected from rhenium, tungsten, molybdenum and chromium; a process for the epoxidation of ethylene comprising reacting ethylene with oxygen in the presence of the catalyst bed contained in the reactor system; and a method of preparing ethylene glycol, an ethylene glycol ether or an ethanol amine comprising obtaining ethylene oxide by the process for the epoxidation of ethylene, and converting the ethylene oxide into ethylene glycol, the ethylene glycol ether, or the ethanol amine. Preferably, the internal tube diameter is at least 45 mm.

The present invention belongs to the field of biotechnology, and discloses a serum-free culture medium with specific chemical compositions for in vitro culture and amplification of bone marrow mesenchymal stem cells. By adding insulin, transferrin, ethanolamine, sodium selenite, growth factors, adherent factors, hormone, putrescine, inorganic salt, vitamin, albumin and antioxidant into a basic culture medium, the bone marrow mesenchymal stem cells can attach to the culture medium under a serum free condition, so the in vitro culture and amplification are realized, the potential of multi-directional differentiation is maintained, and the amplified cells can be induced to be osteoblast and lipocyte in vitro. The serum-free culture medium has the advantages that the clinic level cell products for human produced by the serum free culture medium can effectively avoid the potential risk of producing cell products by serum culture medium. The drawing appended is a photo of the confluence of the bone marrow mesenchymal stem cells cultured by the serum-free culture medium.

A cleaning composition containing: (a) from about 1.0 to about 15.0% by weight of a monoethanolamine salt of an alkyl sulfonic acid; (b) from about 3 to about 50% by weight of a C₆-C₁₄ methyl ester primary solvent; (c) from about 1.0 to about 15.0% by weight of a short-chain cosurfactant; (d) from about 1 to about 25% by weight of a polar solvent having a water solubility of from about 1 to 5 g/100 ml; (e) up to about 10.0% by weight of a nonionic surfactant; (f) from about 0.05 to about 3.0% by weight of a thickening agent selected from the group consisting of hydroxypropyl cellulose, hydroxypropyl methylcellulose, and mixtures thereof; and (g) remainder, water, all weights being based on the total weight of the composition, and wherein the composition is terpene-free.

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.

An enhanced activity aqueous disinfecting solution having a pH of from about 0.5 to about 6 and consisting essentially of (i) hydrogen peroxide in a concentration of from about 0.05 to about 8 w/w % of the solution; (ii) at least one anionic surfactant selected from the group consisting of C8 to C16 alkyl aryl sulfonic acids and alkali metal, ammonium, ethanolamine, calcium and magnesium salts thereof, sulfonated C12 to C22 carboxylic acids and alkali metal, ammonium, calcium and magnesium salts thereof, C6 to C22 alkyl diphenyl oxide sulfonic acids and alkali metal, ammonium, ethanolamine, calcium and magnesium salts thereof, naphthalene sulfonic acids and alkali metal, ammonium, calcium and magnesium salts thereof, C8 to C22 alkyl sulfonic acids and alkali metal, ammonium, calcium and magnesium salts thereof, alkali metal, ammonium, calcium and magnesium C8 to C18 alkyl sulfates, alkyl or alkenyl esters or diesters of sulfosuccinic acid in which the alkyl or alkenyl groups independently contain from six to eighteen carbon atoms and alkali metal, ammonium, calcium and magnesium salts thereof, and mixtures thereof, in a concentration range of from about 0.02 to about 8 w/w % of the solution. Optionally, the solution may contain (iii) at least one additional ingredient chosen from a monocarboxylic acid, a polycarboxylic acid, and mixtures thereof, in a concentration of from about 0.05 to about 4 w/w % of the solution; and (iv) at least one further additional ingredient chosen from benzyl alcohol, an alcohol comprising one to six carbon atoms, and mixtures thereof, in a concentration of from about 0.1 to about 10 w/w % of the solution.

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 discloses a multi-effect semi-synthetic cutting solution. The solution is prepared by uniformly mixing the following raw material components in percentage by total mass of 100%: 10 to 14% of monoethanolamine for industrial use, 0.1 to 0.2% of benzotriazole for industrial use, 10 to 13% of boric acid for industrial use, 4 to 6% of phosphate-borate-containing water-based lubricant, 4 to 7% of tall oil fatty acid for industrial use, 8 to 12% of naphthenic oil K22, 2 to 4% of petroleum sodium sulfonate No.55, 0.5 to 1.5% of oleic acid polyoxyethylene ester for industrial use, 1.5 to 2% of 1,3,5-tri(2-hydroxyethyl)-hexahydrotriazine for industrial use, 0.1 to 0.2% of organic silicon defoamer for industrial use and the balance of water. The solution has high lubrication extreme pressure performance and is biodegradable and environment-friendly.

This invention relates to compositions comprising an ethanolamine derivative and an organic salt of zinc and/or magnesium. It further relates to the use of such compositions in topical formulations, in particular in anti-aging formulations. The invention further relates to the use of such compositions to promote human dermal fibroblasts growth and to combat the effects of skin aging.

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.

The invention provides a natural gas pipeline drag-reducing agent and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out esterification reaction on fatty alcohol and phosphorus pentoxide to obtain an esterification product; and (2) carrying out hydrolysis reaction on the esterification product to obtain a hydrolysis product, and then adding ethanolamine into the hydrolysis product to carry out neutral reaction, thus obtaining the natural gas pipeline drag-reducing agent. The preparation method of the natural gas pipeline drag-reducing agent has the advantages of direct material source, simple operation, moderate reaction conditions, relatively simple process and low requirements for equipment, and can easily realize the large-scale industrial production. Besides, the natural gas pipeline drag-reducing agent has potential application values in the aspect of natural gas pipeline transport.

The invention adopts a melt polycondensation method. A few of monomers of C2-5 aliphatic dibasic alcohol, diethylene glycol, polyglycol, fumaric acid, maleic anhydride, lactic acid, glycolic acid, ethanolamine, C2 to C12 aliphatic diamine, glutamic acid, lysine, glycine, etc. are taken as basic materials to be synthesized to obtain non toxic unsaturated polyester-amide resin with adjustable degradation rate and lower cost; wherein, the partial fumaric acid or maleic anhydride can be replaced with phthalic anhydride, isophthalic acid, or adipic acid. The resin yearns for being used as matrix resin of medical bone internal fixation material, tissue engineering scaffold material, bone tissue temporary substitutes, environmental protection type bonding agent, environmental protection type fiberglass reinforced plastics, environmental protection type coating material, disposable tableware, packing material, shopping bags, disposable bags, drug coating or capsule, drug delivery (controlled-release) material, agricultural mulching films, etc., and can be recovered to be utilized.

The invention discloses an amination catalyst and a preparation method thereof, which aims to solve the problem that the amination catalyst is not high in activity and selectivity. The compositions in weight percentage of the amination catalyst are: 15 to 25 percent of A, 5 to 10 percent of B, 1 to 3 percent of C, 0.1 to 1.5 percent of D, and the balance being h-type mordenite, wherein the A is alumina; the B is titanium oxide; the C is metallic ion W<6+>, Re<7+> or Bi<3+>; the D is metallic ion Cs<+>; and the metals exist in the form of elements or oxides. The preparation method comprises the following steps of loading the components C and D on the h-type mordenite, well mixing the components C and D with the alumina and ethanolamine titanate dodecane alcohol ester, molding, roasting and activating the mixture. The catalyst is used for synthesizing ethylene dimine under the conditions of ethanolamine and ammonia phase.

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 discloses a graphene-poly ionic liquid composite material, and a preparation method and application thereof. The preparation method comprises the following steps: under the protection of inert gas, conducting a free radical polymerization reaction on the graphene and an ionic liquid with ethylenic bond in the presence of an initiator; and after the reaction, washing and drying the reaction products to obtain the graphene-poly ionic liquid composite material. As the graphene-poly ionic liquid composite material has good conductivity, porous structure and high adsorption, it can be used to prepare an electrochemical sensor for detection of phenylethanolamine A. The preparation method of the invention has the advantages of simple operation, low cost and easy control of the reaction process; the obtained graphene-poly ionic liquid composite material has the advantages of high sensitivity, high stability and recyclability; and the electrochemical sensor can fast and accurately detect phenylethanolamine A.

The invention relates to a catalyst used to composite ethanediamine from gas phase and relative production, wherein it comprises 20-30% alumina, 5-15% metal ion, and left is hydrogen mordenite treated by acid, while metal ion can be one of Zr4+, Nb5+, Mo6+, Sn4+, Sb5+ with one of Zn2+, Fe3+, while their mol ratio is 1-10:1. And its production comprises loading the metal ion on the treated hydrogen mordenite, drying, and mixing with alumina, compressing, baking and activating. The invention is used to composite ethanediamine from ethanolamine and ammonia gas.

The invention relates to a method for producing ethanolamine, mainly solving the technical problem of high reaction temperature and high system pressure in the prior art. The technical problem is well solved by using a technical scheme in which ethylene oxide and ammonia are used as raw materials and ZSM-5 is taken as a catalyst for reaction to produce ethanolamine under the conditions that the mole ratio of ammonia to ethylene oxide is 0.5-15, the reaction temperature is 50-100 DEG C, the system pressure is 4-12 MPa, and liquid-phase space velocity is 0.5-4h<-1>. The method can be used in the industrial production of the ethanolamine.

The invention provides an early-strength water reducer for recycled aggregate concrete, which is suitable for the field of building materials. The the early-strength water reducer comprises the following raw materials by weight percent: 20-25% of a polycarboxylic acid water reducer, 1-6% of tri-isopropanolamine, 0.5-2% of triethanolamine, 5-15% of sodium sulfocyanate, 3-10% of calcium formate, and 42-70.5% of water. The early-strength water reducer provided by the invention is low in dosage, good in early-strength effect, free from chloride ions, resistant to the corrosion of steel bars, suitable for recycled concrete, and capable of enhancing the early strength of a recycled concrete product and improving the peaceability of a recycled concrete mixture.

The invention relates to an environmental-friendly water-based antirust agent, which mainly comprises boric acid, ethanolamine, a neutralizer, a corrosion inhibitor, an additive, water and the like. During use, the antirust agent is mixed with the water in a ratio of 1:5-1:20 to form antirust solution, and a steel workpiece is soaked in the antirust solution at the temperature of between 50 and 70 DEG C for 3 to 5 minutes and taken out; a continuous and compact thin film is formed on the surface of the soaked workpiece, so that oxygen and water vapor can be effectively prevented from contacting the surface of the workpiece, the primary color of the workpiece is kept unchanged, and the aim of rust prevention is fulfilled; and the treated workpiece can be directly subjected to the next process, so that the complex process of removing an antirust coating is reduced. The antirust agent does not contain poisonous and harmful substances such as nitrite, phosphate, bichromate and the like, cannot irritate and harm human bodies, and is an environmental-friendly water-based antirust agent.

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.

The invention relates to an emulsified metal antirusting agent and a preparation method thereof. The antirusting agent comprises the components by weight percentage of 2-2.5% of dicarboxylic acid, 6-6.5% of triethanolamine, 1-1.5% of monoethanolamine, 5-6.5% of synthesized borate, 8-10% of dodecenylbutadioic acid, 4.5-6% of octadecane oeoyl sarcosine acid, 0.1% of benzotriazole and 66.9-73.4% of water. The preparation method comprises the following steps of: firstly preparing a water-base antirusting agent; subsequently adding the octadecane oeoyl sarcosine acid, the synthesized borate and thedodecenylbutadioic acid in a reaction kettle; and mixing the solution, thus obtaining the emulsified antirust product. The method utilizes the strong adsorption function between the antirusting agentand the metal, displaces the residual oil dirt out of the surface of the metal, leads the surface of the metal to be adsorbed by a hydrophobic protective film; no oil dirt is remained on the surfaceof the metal that is processed by the antirusting agent, and the surface of the metal is not easy to be polluted by the dust; the antirusting agent can be used directly; furthermore, the components contains no nitrite, thus being safe and environment-friendly for use.