6 results about "Monoisopropanolamine" patented technology

The present invention provides a heat damage inhibitor composition for hair that suppresses heat-induced damage to the hair and maintains smooth texture and manageability even after heat treatment. [Solution] A heat damage inhibitor composition for hair, comprising (A) an arginine derivative represented by general formula (1) and (B) an anionic water-soluble polymer, wherein the weight blending ratio ((A) component / (B) component) is 0.5 to 10.0. TIFF2026049878000009.tif3864 (In general formula (1), M is a hydrogen atom, an alkali metal, an alkaline earth metal, or an alkanolamine such as monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, or triisopropanolamine.)

The invention relates to the field of cutting fluid, and particularly discloses a semi-synthetic cutting fluid composition, a metal working fluid and a preparation method of the metal working fluid, and the semi-synthetic cutting fluid composition comprises mineral oil, a nonionic emulsifier, a functional additive, a pH buffering agent, a bacteriostatic agent and the balance of water. The functional additive comprises one or more of a corrosion and rust inhibitor, an oiliness agent, a lubricating extreme pressure agent and a defoaming agent; the pH buffer agent is prepared from one or more of monoethanolamine, diethanolamine, triethanolamine, triisopropanolamine, monoisopropanolamine, 2-amino-2-methyl-1-propanol, dicyclohexylamine and ethanolamine, and the pH buffer agent is prepared from one or more of the following raw materials: sodium dodecyl benzene sulfonate, sodium dodecyl benzene sulfonate, sodium dodecyl benzene sulfonate, sodium dodecyl benzene sulfonate, sodium dodecyl benzene sulfonate and sodium dodecyl benzene sulfonate; the bacteriostatic agent comprises one or more of an isothiazolinone derivative, phenoxyethanol and polyquaternium. The metal working fluid comprises the semi-synthetic cutting fluid composition, the biological stability of the field working fluid can be effectively controlled in the aluminum alloy machining process in a manner of compounding organic alkali and a specific bacteriostatic agent, the growth of bacteria or fungi can be inhibited, and the service life of the working fluid can be prolonged.

This invention discloses a method for preparing phenylbis(2-oxazoline) compounds. Under the first reaction temperature and first feed ratio conditions, isophthalonitrile and isopropanolamine are reacted as raw materials to form a phenyl-2-oxazoline intermediate containing a mononitrile. At a second reaction temperature, isopropanolamine and a supported metal oxide catalyst are added to the intermediate, and the reaction continues until the nitrile group is completely converted, yielding a crude phenylbis(2-oxazoline) product. The crude product is filtered under positive pressure to remove the catalyst, and the excess isopropanolamine is removed by evaporation of the filtrate. A crystallization solvent is added, and the mixture is stirred and crystallized. The crystal slurry is filtered and dried to obtain the phenylbis(2-oxazoline) compounds. This invention provides a simple preparation method with high product yield, recyclable catalyst, a raw material conversion rate of over 99%, a synthetic selectivity of over 95%, and a maximum process yield of over 85%.

The objective is to provide an acidic CIP cleaning agent composition and a CIP cleaning method using the same, which suppresses equipment blockage during CIP cleaning and exhibits good cleaning performance while suppressing the generation of chlorine gas even when a chlorine-based cleaning agent is used as an alkaline cleaning agent. [Solution] The present invention provides an acidic CIP cleaning agent composition comprising (A) one or more polycarboxylic acid type chelating agents selected from the group consisting of aminocarboxylic acid type chelating agents and hydroxycarboxylic acid type chelating agents, (B) one or more alkaline agents selected from the group consisting of sodium hydroxide, potassium hydroxide, monoethanolamine, diethanolamine, triethanolamine, and monoisopropanolamine, and (C) water, with a pH of 3.5 or higher and 6.0 or lower at 25°C, and a CIP cleaning method using the same.

The application belongs to the technical field of isopropanolamine preparation, and particularly relates to a gas-solid phase synthesis process of isopropanolamine. The gas-solid phase synthesis process of isopropanolamine comprises the following steps: (1) preparing a copper-doped phosphosilicic aluminum carrier; (2) preparing a modified copper-doped phosphosilicic aluminum catalyst; and (3) taking propylene oxide and ammonia gas as reaction gas, taking the modified copper-doped phosphosilicic aluminum as a catalyst, and performing a gas-solid phase reaction in a fixed bed reactor to prepare isopropanolamine. The gas-solid phase synthesis process of isopropanolamine takes the copper-doped phosphosilicic aluminum as a catalyst carrier, loads three cobalt tetroxides and two iron trioxides as catalyst active components, is applied to the gas-solid phase reaction of propylene oxide and nitrogen gas to prepare isopropanolamine, the addition of the catalyst reduces the activation energy of the nucleophilic reaction of ammonia gas and effectively activates the ring opening of propylene oxide, the content of mono-isopropanolamine in the product is increased, and the contents of di-isopropanolamine and tri-isopropanolamine are reduced.

The present application relates to the technical field of concrete mineral admixtures, and particularly discloses a method for inhibiting the setting of granulated electric furnace phosphorus slag powder and improving the activity, which comprises the step of using a modifier in the preparation of modified phosphorus slag powder; the modifier comprises modifier A and modifier B; the modifier A comprises the following mass fraction ratios of effective components: 28 parts of calcium nitrite, 5-15 parts of a modified chelating agent, and 0.08-0.30 parts of calcium hydroxide; the modified chelating agent comprises diethanol monoisopropanolamine; and the modifier B comprises industrial sodium silicate powder. The method has the following advantages: 1) the activity index of cement-based materials mixed with granulated electric furnace phosphorus slag can be significantly improved, and the setting time can be effectively shortened; and 2) the setting inhibition and activity improvement can be achieved by precisely controlling the phosphorus slag particle grinding process in the phosphorus slag powder production process, and the application problem of granulated electric furnace phosphorus slag in cement-based materials can be solved from the source without relying on the adjustment of the admixture in the concrete preparation stage.