1235 results about "Ethanolamines" patented technology

The invention provides a method for preparing ethylenediamine from reactants of glycol and ammonia in the presence of a solid catalyst with a main component of copper through a hydrogenation and amination one-step method. The method comprises the following steps of: making glycol containing water or not containing water and ammonia enter a reactor filled with the catalyst with a main component of copper, performing dehydrogenation to obtain the ethylenediamine and water and an ethanolamine byproduct, and separating the mixture obtained through reaction to obtain the product of ethylenediamine.

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 present invention relates to a method and a wood preserving composition which comprises mixtures of a metal compound, complexing agents selected from ethanolamines, polyethylenimine, ammonia or a mixture of these compounds, and a vinyl based polymer selected from poly(vinyl alcohol) (PVA), poly(acrylamide) (PA), poly(N-vinyl pyrrolidone) (PVP) and poly(N-isopropyl acrylamide) (PNIPAM). The resulting metal amine solution can then be used to formulate a variety of metal-based cellulosic material preserving products.

The present invention relates to the processing technology of semiconductor device and is especially the processing method of sapphire substrate for HB-LED tube core and special polishing liquid. The processing method includes the steps of adhering, coarse grinding, fine grinding, coarse polishing and fine polishing. The nano polishing liquid consists of nano silicon powder, glycol, glycerine, ethanolamine and deionized water. The present invention can raise surface smoothness to obtain the mirror polishing effect, eliminate stress, lower loss of cutting tool, raise product quality and lower production cost. In addition, the polishing liquid can shorten polishing period greatly compared with micron level polishing liquid.

The invention relates to a multi-effect water-based composite cutting/grinding fluid which consists of water-soluble oil, cleaning agent, extreme pressure antiwear agent, antirust, antibacterial agent, complexant, solubilizer and anstatic agent. The water-soluble oil is the mixture of aminoethyl alcohol and triethanolamine oleate, the cleaning agent is anionic surfactant or nonionic surfactant, the extreme pressure antiwear agent is one or two of additives A, B, C, D, E and F, the antirust is benzotriazole and sodium benzoate, the antibacterial agent is boric acid and borax, the complexant is EDTA and the solubilizer is urea. The cutting/grinding fluid with various improved performances is non-toxic and tasteless, is an environment-friendly product and has no harm to human body and the skin of users; the operating cycle is normally more than 6 months.

The invention provides a stainless steel degreasing agent, which comprises the following components in percentage by weight: 5 to 25 percent of organic solvent, 2 to 5 percent of corrosion inhibitor, 10 to 25 percent of surfactant, 5 to 10 percent of inorganic salt, 1 to 3 percent of defoaming agent and the balance of deionized water, wherein the organic solvent is bromohydrocarbon; the corrosion inhibitor is sodium benzoate, ammonium benzoate, triethanolamine, ethanolamine or benzotriazole; the surfactant is one or more of alkylphenol polyoxyethylene ether and fatty alcohol-polyoxyethylene ether; the inorganic salt is alkaline salt; and the defoaming agent is tributyl phosphate, organic silicon, oleic acid or sodium oleate. The stainless steel degreasing agent can replace the currently used ODS cleaning agents, can achieve the cleaning effect of the ODS cleaning agents, does not damage the surface of the stainless steel, has obvious cleaning effect, can clean a large number of products, and does not harm a human body; and the preparation method is simple, safe, and environment-friendly.

Latex paint formulations that contain N-n-butyl ethanolamine (BAE) as the neutralizing agent and methods for their use are disclosed. BAE provides paint formulations that have low odor, increased open time, and reduced volatile organic compounds (VOC). BAE also aids in pigment dispersion so less pigment dispersant is required for paint formulations in which the pigment volume concentration (PVC) of the formulation is 38% to 80%.

The invention relates to a natural active drug-polysaccharide targeted compound with antitumor activity and targeting property. A natural active drug is introduced onto a polysaccharide framework by chemical grafting, and physically mixed with a ligand distearoylphosphatidyl ethanolamine-polyethyleneglycol-anisoyl amine with targeted transmission capacity to form a natural active drug-polysaccharide targeted compound, and the natural active drug-polysaccharide targeted compound can be self-assembled in water to form a nano micelle. The method is characterized in that the natural active drug-polysaccharide targeted compound has targeted transmission capacity, enhances the tumor transfer efficiency of the preparation, reduces the untoward reaction and enhances the tolerance of the patient; the hydrophobic inner core formed by the hydrophobic group can physically wrap the antineoplastic drug, thereby obviously improving the water solubility of the antineoplastic drug; and the antineoplastic drug which is physically wrapped by the chemically coupled ursolic acid can implement combined treatment of tumors and lower the toxic or side effect. The preparation method is simple and easy to operate, has the advantage of higher yield, and can easily implement industrialization.

The invention relates to a method for removing aldehydes in an epoxypropane reaction mixture. The method comprises carrying out primary aldehyde removal on an epoxypropane reaction mixture through an aldehyde-free resin tank so that aldehyde content is reduced and epoxypropane product purity is guaranteed, orderly removing water and unreacted propylene, feeding the materials containing epoxypropane and methanol into an epoxypropane refining tower, carrying out extraction on methanol in the middle section of the tower through desalinized water containing ethanolamine or hydrazine hydrate, simultaneously removing residual aldehyde in the epoxypropane product, separating the separated aqueous solution through a methanol tower, feeding the aqueous solution into a membrane separation device, further removing residual aldehydes and impurities, returning the methanol as circulation methanol at a penetration side to a reaction system and returning aldehyde-containing methanol at a retentate side to a collection tank. The method utilizes less devices, reduces a disposable investment, does not need hydrogen in a separation and recovery process, does not increase a safety risk, is safe and reliable in use and reduces later waste water treatment energy consumption.

PCT No. PCT/US97/15230 Sec. 371 Date May 4, 1998 Sec. 102(e) Date May 4, 1998 PCT Filed Aug. 28, 1997 PCT Pub. No. WO98/09625 PCT Pub. Date Mar. 12, 1998Disclosed herein are selective beta 3 adrenergic agonists represented by the following structural formula: The variables in the structural formula shown above are defined in the specification. Also disclosed are methods of using these compounds for agonizing the beta 3 adrenergic receptor in patients in need of such treatment, for example, patients in need of treatment for obesity or Type II diabetes.

The invention discloses a recovery process of polyurethane waste. The recovery process comprises the following steps: (1) adding polyurethane waste, a degradation agent and a catalyst in a reaction kettle, and performing argon shield, placing the system in an oil bath to slowly warm, wherein the degradation agent is selected from a mixture of more than any two of alkyl polyols, the dosage of the degradation agent is 1-3 times of that of the polyurethane waste, the alkyl polyols comprise glycol, propanediol, diethylene glycol, dipropylene glycol, ethanolamine, diglycol and pentaerythritol; (2) stopping heating after keeping the degradation reaction at temperature A and reaction time B when the oil bath temperature is raised to the temperature A; and (3) performing recovery processing on a target reaction product by using the recovery process. By adopting the recovery process disclosed by the invention, the recovery efficiency can be obviously improved, byproducts produced during degradation of the polyurethane waste are reduced, and the recovery cost is lowered.

Disclosed is an electrochemiluminescence immunoassay method, using a full reaction of a Ru(bpy) marked protein-primary antibody, a biotinylated protein-secondary antibody to be tested, and a sample to be tested; addition of a Streptavidin-coated magnetic particle to form a complex comprising an antigen, an antibody, and a magnetic particle; adsorption to an electrode surface by the magnetic particle; addition of a dibutyl ethanolamine solution; testing by means of an electrochemical method. Also disclosed is a corresponding electrochemiluminescence immunoassay detection kit.

A high-temp corrosion inhibitor for the metallic apparatus in oil refining system is prepared from polyvinyl polyamine (40-60 Wt%), N-phenyl di-ethanolamine (10-25), amidoimidazoline (1-10) and phosphate (20-35). Its advantages are oil soluble, and high adsorptivity and filming speed.

The invention discloses a titanium dioxide sol and a coating type denitration catalyst. The titanium dioxide sol is prepared from a titanium dioxide precursor, a dispersing agent, organic chelating agents, alcohol solvents, deionized water and auxiliaries, wherein the organic chelating agents include one or two of acetylacetone, tert-butyl ketone and 1,3-diphenyl-1,3-propanedione, the alcohol solvents include one or two of methanol, ethanol, isopropanol and n-butanol, and the auxiliaries include one or two of methylcellulose, polyethylene glycol-400, sodium dodecyl sulfate, hexamethylene tetramine, tetrahydrofuran and ethanolamine. A substrate of the coating type denitration catalyst is made of cordierite honeycomb ceramics, and the substrate is coated with active components of a vanadium-tungsten impregnation solution, an iron-cerium impregnation solution or a manganese-cerium impregnation solution with the titanium dioxide sol as a carrier. The grain size of the titanium dioxide sol is at the nanometer level. A coating formed by the coating type denitration catalyst has high bonding fastness, coating capacity and solid content.

The invention provides a high mechanical property and low cost SCR denitration catalyst and a preparation method thereof. A steel screen or a reinforced glass fiber board is used as a framework material, and 78-80 weight parts of industrial grade and nano scale TiO2 is used as a composite carrier, wherein the weight parts of the industrial grade TiO2 are 5-8, and the balance is the nano scale TiO2; 13-27 weight parts of V2O5-WO3/TiO2 roasting particle is used as batching seed crystal, and 9-10 weight parts of V2O5 and WO3 are used as active components, wherein the weight parts of the V2O5 are 1.5-2, and the balance is WO3; and 10-12 weight parts of ludox, methylcellulose, fiberglass yarn and ethanolamine are used as auxiliary agents, wherein the weight parts of the ludox, the methylcellulose, the fiberglass yarn and the ethanolamine are all 2.5-3.5. The invention reduces the preparation cost and the operation expense of the SCR denitration catalyst, and improves the mechanical properties of abrasion resistance, pressure resistance, strength, and the like of the catalyst.

The invention discloses a preparation method of a MOF-guided nickel-cobalt bimetallic phosphide. The preparation method comprises the steps: fully dissolving 1,4-terephthalic acid in a mixed solutionof ethanol, deionized water and DMF, adding NiCl2.6H2O and CoCl2.6H2O, adding ethanolamine, magnetically stirring, and carrying out ultrasonic dispersion, washing and vacuum drying under sealed conditions to obtain a nickel-cobalt bimetallic material marked as Ni1Co1-BDC; in an Ar atmosphere, calcining Ni1Co1-BDC and NaH2PO2.H2O at the temperature of 280-320 DEG C for 1-2 h, cooling to room temperature, washing, and carrying out vacuum drying to obtain the nickel-cobalt bimetallic phosphide marked as Ni1Co1-P. Ni1Co1-P is used as an electrocatalyst for water electrolysis oxygen evolution reaction, and Ni1Co1-P shows excellent electrocatalytic performance and stability in the oxygen evolution reaction process due to a unique layered porous structure, an ultrathin carbon film and the synergistic effect of high-activity nickel and cobalt.

The invention relates to metal bearing water-based cleaning agent, rinsing agent matched with the water-based cleaning agent, and the preparation method thereof. Petroleum sodium sulfonate, triethanol amine oleate, fatty alcohol-polyoxyethylene ether, emulgator, and cocoanut oil diethanolamine phosphoric acid ester are mixed with tiethanolamine and ethanolamine according to the weight percentage, are stirred uniformly at room temperature, then are mixed with other raw materials and water, then antibubbling agent AF9020 is added, and therefore the brown yellow and transparent concentrated cleaning agent is formed; nitrous acid dicyclohexylamine, oleic acid triethanolamine and petroleum sodium sulfonate are respectively dissolved into the mixed solvent of tiethanolamine and mono ethanolamine, then benzotriazole is dissolved into water to mix the two solvent, to form the brown yellow and transparent concentrated rinsing agent; the cleaning agent and the rinsing agent are mixed into 5 percent treatment fluid and 1 percent of treatment fluid, then the treatment fluid is cleaned for 30 seconds to 1 minute under ultrasonic wave, rinsed for 30 seconds, and then hot air seasoning, drying and 48 h rust preventing are performed. The invention can replace gasoline cleaning agent, kerosene cleaning agent, and universal water-based cleaning agent, the used raw material is easy to be acquired, the production cost is low, and the invention without parkerizing process can effectively prevent the environmental pollution.

The invention provides zinc oxide ink and a preparation method thereof, an electron transmission membrane layer and a display device. The zinc oxide ink comprises ligand-loaded zinc oxide nanoparticles; a ligand adopts an aliphatic chain longer than two carbon atoms. According to the zinc oxide ink provided by the invention, the zinc oxide nanoparticles adopt the ligand with the chain length greater than the two carbon atoms; compared with zinc oxide nanoparticles which take ethanolamine (with the ligand chain length equal to the two carbon atoms) as the ligand in the prior art, the steric hindrance between the zinc oxide nanoparticles is increased, so that the zinc oxide nanoparticles are not aggregated, and furthermore, a condition that a black point is formed in a membrane layer formedby the zinc oxide ink is avoided; meanwhile, the ligand has a self-crosslinking property, and a network-shaped structure is formed by self-crosslinking; a condition that relatively more holes are formed in the membrane layer, caused by the fact that a solvent of a printing membrane layer is volatilized too fast, is avoided, and the quality of the membrane layer formed by adopting the zinc oxide ink is ensured.

The invention relates to a method for preparing zinc oxide (ZnO) nanorods, and the method comprises: (1) soluble zinc salt and hydroxide with the molar ratio of 1:2-1:4 are weighed at room temperature and added in deionized water, then a mixed solvent of ethylenediamine and ethanolamine with the volume ratio of 1:5-5:1 is added, and the mechanical stirring is carried out for 20-40 minutes for obtaining clear reaction solution, wherein, the volume ratio of the added mixed solvent to the deionized water is 1:6-1:1; (2) the reaction solution in step (1) is added in a reaction kettle for carrying out the solvent thermal reaction, the reaction temperature is 110-150 DEG C, the reaction is carried out for 6-12h, and the natural cooling is carried out to the room temperature; (3) products are centrifugally separated, washed and dried at 40-60 DEG C for 5-12h, thereby obtaining the ZnO nanorods. The preparation method is simple and easy to control, and the prepared zinc oxide nanorods have even size; in addition, nano-particles are more stable in the organic phase and difficult to generate the impurity phase.