42results about How to "With corrosion inhibition" patented technology

The invention discloses a multifunctional anti-incrustation corrosion inhibitor and a preparation method thereof. The multifunctional anti-incrustation corrosion inhibitor is used as a water treatment agent for industrial circulating cooling water, a heating network system and a low-pressure boiler and is prepared from the following components in percentage by mass: phosphate, sulfonate, phosphonate, polycarboxylic acid, azoles and water. The preparation method comprises the following steps of: sequentially adding the components into a reaction vessel at normal temperature, and then stirring,dissolving and mixing to form a finished product. The multifunctional anti-incrustation corrosion inhibitor confirms to the national DL / T806-2002 (electric power) and SH 260407-2003 (petrochemistry) standards of the anti-incrustation corrosion inhibitor for circulating cooling water, can be applied to various water treatment systems and used as the water treatment agent for water with various qualities, and can be directly applied to the water treatment system to play the roles of anti-incrustation, incrustation removal, corrosion mitigation and concentration ratio increase, thereby achievingthe purposes of incrustation prevention and removal as well as water saving.

The application belongs to the technical field of metal processing, and in particular relates to a lubricant and its preparation method and application. The application provides a lubricant, comprising: isononanoic acid diisopropanolamide and isononanoic acid diethanolamide; the isononanoic acid diisopropanolamide has the structure of formula I; the isononanoic acid diethanolamide Amides have the structure of Formula II. The present application also provides a preparation method of a lubricant, comprising the following steps: mixing and reacting isononanoic acid, an alcohol amine mixture and a catalyst to prepare the lubricant according to claim 1; wherein, the alcohol amine mixture comprises two Isopropanolamine and Diethanolamine. The present application provides a lubricant and its preparation method and application, which effectively solves the technical problem that existing water-based lubricants cannot have both low-foaming and super-lubricating properties.

The invention relates to a fireproof, flame-resistant and anticorrosive paint. The fireproof, flame-resistant and anticorrosive paint comprises the following components in percentage by weight: main agents consisting of 15-40% of epoxy resin, 0.1-1.5% of flame retardant, 5-25% of antimonous oxide, 10-30% of metal phosphate, 5-25% of polyamine phosphate, 3-12% of pentaerythritol, 5-25% of halogenous resin and 3-15% of an anticorrosive material; and a curing agent, wherein the mass ratio of the main agents to the curing agent is 3:1 to 8:1; and the anticorrosive material is silica powder and / or mica iron oxide ash. The fireproof, flame-resistant and anticorrosive paint provided by the invention is waterproof, can be used indoors and outdoors, and has fire resistance, good adhesive and excellent tensile strength.

The invention relates to a composite-type water quality protective agent for a household heating system, wherein the composite-type water quality protective agent comprises the following components in percentage by weight: 3-20% of propylene glycol, 2.5-10% of corrosion inhibitor, 5-20% of triethanolamine, 3-10% of boric acid, 0.1-5% of dispersion agent, 0.1-2% of bacteriacide and the balance of water. The composite-type water quality protective agent provided by the invention is suitable for being used in a household heating system in China and has the effects of scale inhibition, corrosion inhibition, sterilization and the like, and has the anticipated effect in the household heating system, thus each device in the whole heating system can run safely and economically, and the aims of water pollution reduction and energy conservation and consumption reduction are achieved.

The invention discloses a low-viscosity ultralow-temperature bidirectional wide-temperature secondary refrigerant. The low-viscosity ultralow-temperature bidirectional wide-temperature secondary refrigerant is a composition consisting of the following components in percentage by weight: 80%-99% of glycol alkyl ether compounds, 0.1%-9% of an corrosion inhibitor, 0-1% of a scale inhibitor and 0.9%-10% of functionality regulating liquid; the pH value of the composition is 8-10. The low-viscosity ultralow-temperature bidirectional wide-temperature secondary refrigerant is non-toxic, harmless and non-volatile, is not nonflammable and explosive and does not corrode metal equipment, so that the consumption is reduced, and the service life of the equipment can be prolonged; meanwhile, the low-viscosity ultralow-temperature bidirectional wide-temperature secondary refrigerant has very good fluidity at low temperature, is a safe heat transfer medium with an excellent heat transfer property, does not precipitate and scale and has the properties of cold carrying, heat transfer, corrosion inhibition and bacteria inhibition; the low-viscosity ultralow-temperature bidirectional wide-temperature secondary refrigerant suitable for being used as a cold-carrying and heat-transfer medium at (-75) to (240) DEG C in the industrial field and is very applicable to indirect heat transfer systems used in chemical industry production and medical synthesis processes.

The invention relates to a preparing method of a nanometer boehmite filling material having a surface grafted with a corrosion inhibitor. The corrosion inhibitor, a catalyst, a bridging agent and a polymerization inhibitor are adopted to perform surface grafting modification on the nanometer boehmite filling material, and therefore dispersity of a modified product is ensured, and the modified product has a corrosion inhibiting function. An active chemical group in the molecule structure of the bridging agent and Al-OH groups in the structure of boehmite form covalent bonds, the covalent bonds are adopted as compounds connecting the boehmite and the corrosion inhibitor and are subjected to grafting compositing, and therefore dispersity of the modified product is effectively improved, the modified nanometer boehmite filling material has a corrosion inhibition function, and comprehensive anti-corrosion performance of a coating can be significantly improved after the modified nanometer boehmite filling material is added into an epoxy anti-corrosion coating system. The method is simple and convenient in operation and low in cost. The prepared nanometer boehmite filling material having the surface grafted with the corrosion inhibitor overcomes the problem that epoxy boehmite anti-corrosion coating systems at present are insufficient in corrosion resistance.

The invention discloses a quaternary non-phosphorus aggregate type corrosion and scale inhibitor PIAAM and a preparation method thereof. The corrosion and scale inhibitor PIAAM is composed of itaconic acid, acrylic acid, 2-acrylamide-2-methyl propanesulfonic acid and methyl methacrylate, sodium persulphate, isopropyl alcohol and water. The corrosion and scale inhibitor PIAAM contains no phosphorous element, meets environmental protection requirement, is excellent in scale inhibition performance, has good iron oxide dispersity and also has the characteristics of corrosion inhibition, high temperature resistance, high alkali resistance and stable molecular structure, and discharge of 'waste water, waste gas and waste residue' is not caused in the whole preparation process. The quaternary non-phosphorus aggregate type corrosion and scale inhibitor product PIAAM is simple in process when being used for treating circulating cooling water, dosage is low, cost is low, and effect is good, so that the quaternary non-phosphorus aggregate type corrosion and scale inhibitor PIAAM has better economic benefit and social benefit.

The invention provides a scale removing and inhibiting agent, and a preparation method thereof, and relates to the technical field of oil field chemical additives. The scale removing and inhibiting agent comprises the following raw material components in parts by weight: 22-37 parts of a plugging removal agent, 3-5 parts of a corrosion inhibitor and 25-35 parts of a slow release agent. According to the scale removing and inhibiting agent provided by the invention, the plugging removal agent, the corrosion inhibitor and the slow release agent with a certain proportion are used as main raw materials, and the components are synergistically matched with each other, can be slowly dissolved when injected in water, and release effective components in a long-acting manner. Different types of scaleblockage objects can be removed, secondary scaling is inhibited, corrosion to tubular columns is relieved, and decompression and augmented injection of a high-pressure short-shot injection well are realized.

The invention discloses an industrial pickling assistant and application thereof. The industrial pickling assistant is prepared from polyaspartic acid, polyoxyethylene ether surfactant, a complexing agent and water in a mixing manner; and the industrial pickling assistant and 18-25wt% of industrial sulfuric acid or hydrochloric acid are mixed to prepare into a cleaning solution according to the weight ratio of 1 to (100-150). The product disclosed by the invention utilizes the collaborative adsorption effect of polyaspartic acid and polyoxyethylene ether surfactant; a stable absorption layer can be stably formed at the surface of metallic matrix, so as to achieve the corrosion-inhibition and anti-rusting effects; the binding force of a rusting layer, a dirt layer and metallic matrix is reduced by utilizing permeating and wetting action of the surfactant; rapid dropping is facilitated; the metal complex ion is formed by the complex agent and Fe, Ca and Mg; free metal ions are reduced to achieve the target of facilitating dissolving of rusting of a steel product or material surface; the components are low in toxicity and biodegradable; and no adverse environmental consequences are generated after the industrial pickling assistant is used.