15 results about "Hydroxyethylethylenediaminetriacetic acid" patented technology

The invention provides an efficient and environment-friendly reverse osmosis membrane scale inhibition cleaning agent based on a composite formula, and relates to the field of reverse osmosis membrane cleaning. Comprising effective components and water, and the effective components comprise the following raw materials in percentage by mass: 10-15% of a surfactant, 10-15% of a sterilizing agent, 30-40% of a composite chelating agent, 10-20% of slow-release organic acid, 5-10% of compound enzyme, 5-10% of an oxidizing agent and 1-5% of a defoaming agent; the composite chelating agent is a compound which takes attapulgite and montmorillonite as carriers and is loaded with hydroxyethyl ethylenediamine triacetic acid trisodium salt; the slow-release organic acid is citric acid modified by carboxymethyl chitosan. The cleaning agent provided by the invention contains the composite chelating agent, the slow-release organic acid, the compound enzyme, the surfactant, the sterilizing agent and the like in effective components, is prepared into the cleaning agent with water, has the effect of efficiently cleaning the reverse osmosis membrane, and is high in cleaning efficiency and small in damage to the reverse osmosis membrane.

The invention discloses an electrode material for purifying and disinfecting drinking water as well as preparation and application thereof, and belongs to the technical field of drinking water purification. An Ag nano structure and an Au nano structure are sequentially constructed on a plastic base material, the electrode material is endowed with excellent antibacterial and catalytic performance, the Ag nano structure is formed through acid treatment and precursor solution soaking, and the preliminary antibacterial performance is endowed; the antibacterial effect is enhanced by micro-emulsion soaking; the microemulsion A and the solution B are mixed to prepare a spraying solution, a stable Au nanostructure is formed after spraying, an electrochemical oxygen reduction reaction is promoted, the H2O2 generation efficiency is improved, hydroxyethyl ethylenediamine triacetic acid and acrylamide are used in cooperation, the Au dosage and the complexing temperature are adjusted, a microcosmic honeycomb structure is formed, and the H2O2 concentration is remarkably improved. The electrode material has antibacterial performance, also has excellent conductivity and catalytic activity, is stable in purification effect before and after use, can be repeatedly used, and has wide application prospects in the fields of drinking water purification and the like.

The invention relates to the technical field of wash supplies, in particular to a volcanic mud-containing composition with color fixing and locking effects and a preparation method of the volcanic mud-containing composition. The composition prepared by the invention is widely applicable to damaged, coarse or ironed and dyed hair, not only can solve the problem that the hair color is easy to change, but also can improve the problem of frizzy and dry hair, and realizes the combination of color holding and hair care, so that the hair color is lasting and beautiful, and the hair is easier to care. Specifically, through combined use of the hydroxyferriheme, the volcanic mud, the myrtle wood oil and the hydroxyethyl ethylenediamine triacetic acid, the obvious color fixing and locking effects can be jointly achieved from multiple aspects of delaying fading, reducing pigment molecule escape and enhancing light aging protection and color fixing; besides, hydrolyzed conchiolin protein, hydroxypropyl trimethyl ammonium chloride hydrolyzed collagen and behentrimethylammonium chloride are combined for use, so that the hair conditioner can be progressive layer by layer from the three layers of internal repair, charge neutralization and external lubrication, the hair combing resistance is jointly reduced, and the smoothness and combing property of the hair are improved.

This invention relates to a flash etching solution, its preparation method, and its application. The flash etching solution comprises hydrogen peroxide, sulfuric acid, a corrosion inhibitor, a stabilizer, and water; the corrosion inhibitor comprises a combination of aminotetrazole, hydroxyethyl ethylenediaminetriacetic acid, and 2-aminothiazole. The flash etching solution provided by this invention significantly improves the stability of hydrogen peroxide, greatly extending its service life; and effectively improves problems such as large lateral corrosion and high roughness, thereby improving production efficiency and reducing production costs.

A degradation inhibitor composition for stabilizing an amine solvent used in a post-combustion carbon capture process is provided. According to a preferred embodiment, the degradation inhibitor comprises: (a) Nitrilotriacetic acid (NTA); or (b) N-(2-hydroxyethyl) ethylenediamine-N', N', N"-triacetic acid (HEEDATA). A method of stabilizing an amine solvent used in a post-combustion carbon capture process using the degradation inhibitor compositions described herein is also provided.

The application discloses an electrode material for drinking water purification and disinfection and preparation and application thereof, and belongs to the technical field of drinking water purification. The electrode material is endowed with excellent antibacterial and catalytic performance by sequentially constructing Ag nanostructure and Au nanostructure on a plastic base material. Acid treatment and precursor solution immersion form Ag nanostructure, which endows the electrode material with preliminary antibacterial performance. Microemulsion immersion enhances the antibacterial effect. Microemulsion A and solution B are mixed to prepare a spraying liquid, and stable Au nanostructure is formed after spraying, which promotes electrochemical oxygen reduction reaction, improves H2O2 generation efficiency, and forms a micro honeycomb structure by using hydroxyethyl ethylenediamine triacetate and acrylamide in combination, adjusting the amount of Au and the complexing temperature, and significantly improving the H2O2 concentration. The electrode material has antibacterial performance, excellent conductivity and catalytic activity, stable purification effect before and after use, can be repeatedly used, and has a wide application prospect in the field of drinking water purification.

The application provides a non-acid composite active plug removing agent and a preparation method thereof, and belongs to the technical field of plug removing agents.The non-acid composite active plug removing agent comprises the following raw materials: ethylene-vinyl acetate copolymer, a solvent, a mutual solvent, an organic sulfonate, diethylene triamine pentaacetic acid, sodium gluconate, a pH regulator, benzotriazole, hydroxyethyl ethylenediamine triacetic acid and methanol.The non-acid composite active plug removing agent is composed of an organic sulfonate, various active agents and a penetrating agent and the like.Through the penetration and dispersion of molecules, various types of plugging materials in the rock gap throat are dispersed, the pore throat is increased, and an effective seepage channel is formed.The non-acid composite active plug removing agent prepared by the application does not corrode and damage metal pipes and the dense rock body, is not acid-sensitive, does not cause flowback pollution, has a long plug removing and dredging distance, has a good and long-lasting effect, and is a new method for deep plug removing.

This invention discloses a flotation separation method for collecting galena and inhibiting sphalerite and pyrite, achieving efficient separation of galena from sphalerite and pyrite in a low-alkaline pulp environment, belonging to the field of mineral beneficiation technology. This invention uses N-hydroxyethylethylenediaminetriacetic acid as an inhibitor of sphalerite and pyrite at a low alkalinity of pH 7.5-9.5, and one or two of sodium diethyldithiocarbamate, sodium ethyl xanthate, and xylenol dithiophosphate as collectors for galena. Under low dosage conditions, it achieves simultaneous inhibition of sphalerite and pyrite and effective collection of galena, offering advantages of high efficiency, simple process, economy, and environmental friendliness. It is particularly suitable for silver-bearing, high-sulfur, low-grade lead-zinc ores and has broad application prospects.

A degradation inhibitor composition for stabilizing an amine solvent used in a post-combustion carbon capture process is provided. According to a preferred embodiment, the degradation inhibitor comprises: (a) Nitrilotriacetic acid (NTA); or (b) N-(2-hydroxyethyl) ethylenediamine-N′, N′, N″-triacetic acid (HEEDATA). A method of stabilizing an amine solvent used in a post-combustion carbon capture process using the degradation inhibitor compositions described herein is also provided.

The invention relates to agents for oxidatively changing the colour of keratin fibres, in particular human hair, containing (a) hydrogen peroxide, and (b) at least one persulfate selected from the group consisting of sodium peroxodisulfate, potassium peroxodisulfate, and ammonium peroxodisulfate, and (c) at least one complexing agent selected from the group consisting of ethylenediamine disuccinate (EDDS), glutamic acid N,N-diacetic acid (GLDA), N,N-bis(carboxymethyl)-L-alanine (MGDA), ethylenediaminetetraacetic acid (EDTA), hydroxyethylethylenediaminetriacetic acid (HEDTA) and / or the physiologically acceptable salts thereof, and (d) at least one aminoalkylsulfonic acid selected from the group consisting of 2-aminoethanesulfonic acid, 2-(N-methylamino)ethanesulfonic acid, 2-(N,N-dimethylamino)ethanesulfonic acid, 3-aminopropanesulfonic acid, 3-(N-methylamino)propanesulfonic acid, 3-(N,N-dimethylamino)propanesulfonic acid and / or the salts thereof.

The invention provides an anti-scaling agent for phosphate scaling substances as well as a preparation method and application of the anti-scaling agent. The anti-scaling agent comprises the following components: 7.5-8.5 parts of eutectic doped citric acid; 8.0 to 9.0 parts of a proton-chelating difunctional deconstruction agent, wherein the proton-chelating difunctional deconstruction agent is prepared from sulfamic acid and hydroxyethyl ethylenediamine triacetic acid; 1.5 to 1.8 parts of an organic-inorganic hybrid permeation enhancer; 2.2 to 2.8 parts of a zirconium-phosphorus vacancy type ion trap material; and 70 to 80.9 parts of deionized water. Through a multi-component cooperation mechanism, the descaling efficiency and the dissolution rate are greatly improved, the cleaning operation is simplified, the downtime and the maintenance cost of equipment are reduced, and a stable and reliable descaling scheme is provided.

A semiconductor substrate cleaning composition containing: hydrogen peroxide (A), a hydrogen peroxide stabilizer (B) which is at least one selected from the group consisting of oxalic acid, diethylenetriaminepentaacetic acid, hydroxyethyliminodiacetic acid, potassium oxalate, 5-phenyl-1H-tetrazole, triethylenetetraminehexaacetic acid, trans-1,2-cyclohexanediaminetetraacetic acid, 8-hydroxyquinoline, L(+) -isoleucine, DL-valine, L(-) -proline, hydroxyethylethylenediaminetriacetic acid, N,N-bis(2-hydroxyethyl)glycine, glycine, L-tryptophan, 2,6-pyridinedicarboxylic acid, benzothiazole, and DL-alanine, an alkali compound (C) which is at least one selected from the group consisting of quaternary ammonium hydroxide (C1) and potassium hydroxide (C2), and water.

The present invention relates to agents for the oxidative color change of keratinous fibers, in particular human hair, comprising (a) hydrogen peroxide, and (b) at least one persulfate selected from the group consisting of sodium peroxodisulfate, potassium peroxodisulfate and ammonium peroxodisulfate, and (c) at least one complexing agent selected from the group consisting of ethylenediamine disuccinate (EDDS), glutamic acid, N,N-diacetic acid (GLDA), N,N-bis(carboxymethyl)-L-alanine (MGDA), ethylenediaminetetraacetic acid (EDTA), hydroxyethylethylenediaminetriacetic acid (HEDTA) and / or their physiologically acceptable salts, and (d) at least one aminoalkylsulfonic acid selected from the group consisting of 2-aminoethanesulfonic acid, 2-(N-methylamino)ethanesulfonic acid, 2-(N,N-dimethylamino)ethanesulfonic acid, 3-aminopropanesulfonic acid, 3-(N-methylamino)propanesulfonic acid, 3-(N,N-dimethylamino)propanesulfonic acid and / or their salts.

This invention provides a low-cost, phosphorus-free scale and corrosion inhibitor and its preparation method, belonging to the field of scale and corrosion inhibition technology. The invention mainly uses sugarcane molasses, N-hydroxyethyl ethylenediamine triacetic acid, citric acid, aminoethyl ethanolamine, sodium hydroxide aqueous solution, and deionized water as raw materials to carry out a polymerization reaction. The resulting polymer has a high content of hydroxyl and sodium carboxylate groups, and is grafted with an appropriate amount of amino groups. This not only effectively complexes calcium ions and other scale-forming ions, but also forms an effective corrosion-inhibiting film on the metal surface, achieving a corrosion inhibition effect. When this polymer is formulated with deionized water and used in circulating water, it exhibits excellent scale and corrosion inhibition performance. This product comprehensively utilizes sugarcane molasses, a byproduct of the sugar industry, resulting in low raw material costs and significant environmental and economic benefits.

The invention provides a matting curing agent for a high-adhesion transparent powder coating and a preparation method of the matting curing agent, and belongs to the technical field of powder coatings. N-hydroxyethyl ethylenediamine triacetic acid, 3, 3 '5, 5'-tetramethyl biphenyl bisphenol diglycidyl ether, epoxy chloropropane, sodium hydroxide, a catalyst and the like are used as main raw materials to prepare an extinction curing agent main body. The main body can be independently used as a matting curing agent and can also be used after being compounded with specific hydroxyl polyester and epoxy resin, the matting curing effect is excellent, and the product has excellent film hardness and boiling resistance. And the product is high in epoxy equivalent, high in hydroxyl equivalent and remarkable in pinhole resistance, and the problem of sensitization is solved.