948results about How to "Good corrosion inhibition effect" patented technology

The invention discloses an environmental-protective composite inhibiting antisludging agent, which comprises the following parts: inhibiting component, antisludging component and deionized water, wherein the inhibiting component is composed of one or more materials in the molybdate, tungstate, borate, organic substituted carboxylic acid or organic heterocyclic compound; the inhibiting component contains one or more materials in the natural macromolecular compound, epoxy succinic acid or acroleic acid ternary copolymer.

The present invention relates to a phosphorus-free composite antiincrustation corrosion inhibitor. It includes polyaspartic acid and/or polyepoxysuccinic acid and at least one kind of scale inhibition and dispersion agent, in which the scale inbibition and dispersion agent is polymer containing carboxylic acid group, or it includes polyaspartic acid and/or polyepoxysuccinic acid, zinc salt, molybdate or tungstate and polymer containing carboxylic acid group. Said invention is applicable to treatment of circulating cooling water.

The invention provides an all-organic type engine coolant which comprises glycol, fat carboxylic acid, tricarboxylic acid, benzoic acid, tri (2-ethylhexoic acid) phosphonate, imidazoles compound, defoamer and deionized water. The engine coolant of the invention contains no inorganic salts, such as amines, borate, nitrate, nitrite, silicate, and the like, so the engine coolant is environment-friendly, can prevent all the contacted metal and nonmetal materials in the engine cooling system from being corroded, has an obvious engine coolant effect on various metals, particularly solves the problem that the cast aluminum using a traditional organic acid engine coolant becomes black generally, can be stabled in a relative low density and bigger PH value range, and has the advantages of long-time storage and use.

This invention claims a water-base cleaning agent composition capable of quickly removing carbon deposit and heavy oil, which can greatly improving performances of removing each heavy oil stain, cleaning dirt, resisting hard water and corrosion inhibition, especially the strongest performance of removing the carbon deposit at the metallic surface, solving the problems the current technology cannot remove each carbon deposit attached to the metal surface and the impurity cannot dissolve. This invention is realized by using following technical scheme: mixing 1% to 5% of synergistic agent, 0% to 10% of sodium hydroxide, 15% to 18% of activating agent, 0 to 5% of energizer, 4% to 8% of inhibiter, 0.5 to 1.5% of stabilizing agent, 0 to 5% of additive with water to prepare the water-base cleaning agent composition. This invention is suitable for cleaning components in the processing processes of each metal, alloy and non-metal in the machine manufacture and maintenance process, and cleaning the carbon deposit and the heavy oil stain. This invention is a non-ODS environmentally friendly water-base cleaning agent.

The invention belongs to the field of chemical additives and discloses a neutral corrosion inhibitor. The neutral corrosion inhibitor comprises the following components of: by weight, 1-5% of a dispersant, 15-40% of neutralizing organic amine, 4-10% of a water-soluble imidazoline compound, 1-5% of an alkynol compound, 4-15% of a nitrogen-containing adsorption type corrosion inhibitor, and 20-55% of a solvent. The neutral corrosion inhibitor provided by the invention has an effect of neutralizing acidic matters, and also has the efficacy of forming film on metal surface. By the adoption of the neutral corrosion inhibitor, the fouling and secondary corrosion problems caused by dew spot corrosion and ammonium salt deposition can be solved.

The invention provides an environmental protection type lubricating grease composition. The composition comprises basic grease and an additive, wherein the basic grease comprises the following ingredients in percentage by weight: 60 to 95 percent of basic oil and 5 to 40 percent of composite lithium soap thickener; and the additive comprises the following ingredients based on the 100 weight percent of the basic oil: 0.05 to 2 percent of antioxidant, 0.5 to 10 percent of extreme pressure anti-wear agent and 0.1 to 2 percent of anti-rusting agent. The environmental protection type lubricating grease composition has high high-low temperature adaptability, high biodegradability, excellent an anti-oxidation, shear resistance and extreme pressure wear resistance and high anti-rusting property and corrosion inhibition, and is suitable to be used as the lubricating grease for bearings of electromotors of rail locomotives.

The present invention relates to a kind of low phosphine corrosion and scale inhibitor suitable for carbon steel material in corrosive water. The low phosphine corrosion and scale inhibitor contains: 2-phosphonic butane-1, 2, 4-tricarboxylic acid 10-15wt%, phosphono carboxylic acid copolymer 5-15wt%, zinc vitriol 5-15wt%, polyepoxy succinic acid 10-20 wt%, and other dispersant 2.5-30 wt%. For common medium and low hardness corrosive water and when the concentration multiple is 3-6 and added low phosphine corrosion and scale inhibitor amount is 70-90 mg/L, there are carbon steel corroding rate less than 0.075mm/a, scale inhibiting rate higher than 95%, and exhausted water reaching relevant standard.

The invention belongs to the technical field of metal surface cleaning treatment, and more particularly relates to an environmental-protection type multifunctional efficient acid washing acid inhibition corrosion inhibitor, which is formed by mainly compounding 2-6 parts of a surfactant, 8-15 parts of a corrosion inhibitor, 0.5-1 part of a penetrating agent, 2-4 parts of an acid washing accelerating agent, 74-87.5 parts of water, and other components, wherein the product achieves the optimal mist inhibition corrosion inhibition effect in the acid washing through the synergy effect of various components. The corrosion inhibitor of the present invention has the following beneficial effects that: (1) the rust removing is fast, the rust removing speed is significantly increased with the additions of the penetrating agent and the accelerating agent, and the rust can be completely removed within 5-30 min when the addition amount is 2%; (2) the mist inhibition property is good, and the good mist inhibition effects are provided for hydrofluoric acid, nitric acid, and the like; and (3) the corrosion inhibition is good .

The multibond liquid consists of sulfur acid, hydrogen peroxide, halide ion, water-soluble poymer, inhibitor, triazole sulfone methanes, 1-substiteunt Benzotriazole, 4-substiteunt Benzotriazole or 5-monomethyl-substituent Benzotriazole.

The present invention belongs to the field of chemical technology, and discloses one kind of acid corrosion retardant. The acid corrosion retardant contains urotropine, thiourea, benzotriazole, mercaptobezothiazole, sodium silicate and water. The acid corrosion retardant of the present invention is developed based on that some acids and some metals have high corrosion retarding rate.

The invention relates to a phosphorus-free composite corrosion and scale inhibitor for bitter circulating water and a preparation method thereof, belonging to the technical field of water treatment. The phosphorus-free composite corrosion and scale inhibitor for bitter circulating water is prepared from the following raw materials in percentage by weight: 5-20% of sodium molybdate, 5-20% of urotropine, 10-30% of polyepoxysuccinic acid, 1-5% of azole derivative, 5-20% of hydroxypropyl methacrylate, 5-15% of acrylic acid-acrylate-sulfonate terpolymer, 5-15% of sodium humate, 0.1-1% of fluorescent tracer, 0.5-2% of caustic soda flakes and the balance of deionized water. The phosphorus-free composite corrosion and scale inhibitor for bitter circulating water can not interfere with other water treatment agents, is free of phosphorus, zinc and other components harmful to the environment, and can effectively solve the problems of corrosion and scales in the bitter-based high-salt-content high-pH system. The invention also relates to a simple and convenient preparation method.

The invention discloses a chemical stainless steel polishing solution which comprises the following components in content: 80mL/L to 120mL/L of 68% nitric acid, 50mL/L to 150mL/L of 40% hydrofluoric acid, 50mL/L to 120mL/L of 30% hydrogen peroxide, 50mL/L to 80mL/L of 85% phosphoric acid, 50mL/L to 80mL/L of 98% concentrated sulfuric acid, 10mL/L to 30mL/L of 95% ethanol, 5g/L to 15g/L of urea, 20g/L to 40g/L of a brightening agent, 0.5g/L to 2g/L of a fog inhibitor and 2g/L to 6g/L of a corrosion inhibitor. The chemical polishing solution is stable in polishing speed; a processed stainless steel workpiece is flat in surface, bright, free of dust, also stable in performance, capable of being stored for a long time and low in production cost; during polishing, irritant acidic gas is small in volatility.

The invention relates to a high-temperature acidic corrosion inhibitor, which is characterized in that the high-temperature acidic corrosion inhibitor comprises the following components in parts by weight: 100 parts of solution containing 40-50 wt% ketone-aldehyde-amine condensate, 3-15 parts of propiolic alcohol, and at least one component selected from potassium iodide, formamide, antimonous oxide and antimonous chloride (wherein potassium iodide is 3-12 parts, formamide is 8-15 parts, antimonous oxide is 3-12 parts, antimonous chloride is 3-12 parts), wherein the solution containing 40-50 wt% ketone-aldehyde-amine condensate is prepared by mixing a ketone-aldehyde-amine and an alcohol solvent of alkylphenol polyoxyethylene based on a ratio of 1: (10-15). The invention also relates to a method for preparing the high-temperature acidic corrosion inhibitor.

The invention discloses an anti-oxidation metal surface treatment agent. The anti-oxidation metal surface treatment agent consists of the following raw materials in parts by weight: 13-20 parts of polyvinyl alcohol, 0.4-1 part of tea saponin, 0.8-1 part of sodium citrate, 0.2-0.3 part of lauryl mercaptan, 0.1-0.3 part of 2-thiol group benzimidazole, 0.1-0.2 part of antioxidant BHT, 0.4-1 part of calcium lignosulphonate, 2-3 parts of amino tri(methylene phosphonic acid), 6-8 parts of sericin, 0.08-0.1 part of boric acid, 10-20 parts of methyl benzotriazole, and 180-200 parts of de-ionized water. The water soluble high-molecular polyvinyl alcohol is mixed with the sericin and is modified by the boric acid to improve the tensile strength and the heat stability of a blended membrane; corrosion inhibition alkali liquid using the methyl benzotriazole as a main material is added, so that the film attached on the metal surface is more uniform and stable to protect a metal material from being corroded by harmful media in atmosphere and water so as to achieve a better corrosion inhibition effect; and the added 2-thiol group benzimidazole and antioxidant BHT can improve the oxidation resistance of the metal surface treatment agent.

The invention relates to a corrosion and scale inhibitor, which comprises a component A and a component B, wherein the component A comprises an organic phosphine compound, a multipolymer dispersant and deionized water; the component B comprises polyphosphate, inorganic zinc salt and molybdate, wherein the mass ratio of the component A to component B is 2:1-1:2. The corrosion and scale inhibitor also comprises a component C, wherein the component C comprises an azole compound, a hydroxide, an organic solvent and deionized water. Compared with a traditional single liquid corrosion and scale inhibitor, the corrosion and scale inhibitor of the invention has strong composite formula adaptability, ratio and dilution times can be timely adjusted according to client on-site water quality; for the terminal clients, storage space is saved, transport cost is reduced, and usage cost of its agent is reduced simultaneously.

The invention discloses an application of ionic liquid which serves as a steel corrosion inhibitor. The imidazolyl lysine salt ionic liquid serves as a corrosion inhibitor, only the corrosion inhibitor is required to be added into a solution contacted with steel, and the corrosion inhibitor is easy to operate and good in corrosion inhibition effect. The corrosion inhibitor is environment-friendly, high in solubility and biodegradability and good in corrosion inhibition effect, and solves the problems that the conventional corrosion inhibitor has large toxic and side effects, low biodegradation, poor environment friendliness and the like.

The invention discloses a low-corrosion and high-efficiency chlorine salt deicing agent, which is prepared from the following raw materials in percentage by mass: 85%-98% of sodium chloride, 1%-10% of a corrosion inhibitor and 1%-5% of an adjuvant, wherein the corrosion inhibitor is prepared from sodium silicate, disodium hydrogen phosphate, sodium tartrate and sodium citrate; and the adjuvant is prepared from sodium humate, urea and heteroauxin. Silicate in the corrosion inhibitor disclosed by the invention can form a protective film on the metal surface to avoid corrosion to metal caused by chlorine salt and synergistic effect of disodium hydrogen phosphate and sodium silicate; the corrosion inhibition effect is enhanced; a chemical adsorption layer is formed by coordinated complexation of polar radical of sodium citrate and sodium tartrate donor and a metal surface; a dual-electric layer structure is formed on the metal surface; a drainage layer is formed by nonpolar radical directional arrangement; chemical corrosion of metal is prevented; and the damages to soil and plants can be reduced by urea, sodium humate and heteroauxin. The preparation method disclosed by the invention is simple, mild in condition, available in raw materials, and easy to put into industrial application, and can be carried out under normal temperature and pressure.

The invention discloses a corrosion inhibitor, which comprises borate, alkali metal salt and/or alkali, rare earth element salt and polycarboxylate. The polycarboxylate is C6 or C7 organic carboxylate. The invention also discloses an application of the corrosion inhibitor in a closed circulating cooling water system for steelmaking as a metal corrosion inhibitor. The inventive corrosion inhibitor has good corrosion inhibition effect on common metal material, can be applied to metal corrosion inhibition of closed circulating cooling water systems, and is friendly to environment and human body.

The invention discloses a novel bactericidal corrosion inhibitor. The corrosion inhibitor comprises the following components in percentage by mass: measured by the mass of the composition as 100%, 1-30% of biquaternary ammonium salt of quinoline and alkyl tertiary ammonium, 1-30% of biquaternary ammonium salt of alkyl tertiary ammonium, 1-15% of organic urea compound, 1-10% of organic amine compound, 1-20% of alkyl quaternary ammonium salt, 1-10% of glutaraldehyde, 1-10% of alkynyl alcohol, 1-10% of higher fatty acid amides derivative, 1-10% of alkylphenol polyoxyethylene polyoxypropylene ether and the balance of water; the corrosion inhibitor disclosed by the invention can control the corrosion of media with different oil-water ratios in the oil well output liquid of an oil-gas-water gathering and transportation system in the oilfield production, when the corrosion inhibitor addition reaches 100mg/L, the inhibition rate can reach above 75%, the corrosion rate can be controlled at below 0.076mm/a, the sterilization rate reaches above 99%, and the problems that the adaptation range of a commercially available corrosion inhibitor to the change in the properties of the media of the oil well output liquid is small, the inhibition rate is low, the emulsion affects demulsification and the commercially available corrosion inhibitor can not control the bacterial reproduction of the medium are solved.

The invention relates to a seawater corrosion inhibitor for carbon steel, particularly a water-soluble chitosan phosphate, and preparation and application thereof. The structural formula of the water-soluble chitosan phosphate is disclosed in the specification, wherein n is approximately equal to 685. The water-soluble chitosan phosphate can be used as a corrosion inhibitor for carbon steel. The product provided by the invention can prevent general corrosion and partial corrosion of medium-carbon steel in the seawater contact process. The compound can not be used as a metal corrosion inhibitor yet. The corrosion inhibitor provided by the invention has the advantages of simple production process, low manufacturing cost, low consumption and low toxicity, can effectively inhibit corrosion attack of the seawater onto the carbon steel, and has wide application prospects.

The invention discloses a desulfurizer used for extraction of crude oil containing hydrogen sulfide and treatment of sewage containing hydrogen sulfide. The desulfurizer comprises, by mass, 25 to 40% of hydroxyethyl-hexahydro-s-triazine, 5 to 10% of micro-molecular alcohol, 1 to 2% of an osmotic agent sodium sulfosuccinate, 1 to 2% of acetic acid, 0.1 to 0.2% of sodium acetate and 0.02 to 0.04% of an antifoaming agent, with the balance being water, wherein the micro-molecular alcohol is methanol, or ethanol or a mixture of methanol and ethanol, and the antifoaming agent is a water-soluble polyether or silicone oil antifoaming agent. The desulfurizer provided by the invention has a simple formula, is intermiscible with water in any ratio and can effectively reduce hydrogen sulfide in crude oil or sewage; the desulfurizer rapidly reacts with hydrogen sulfide and a reaction product is soluble in water and does not block a pipeline; moreover, an s-triazine main agent has good scale-inhibition, anti-scale and sterilization properties; and the hydrogen sulfide removing agent in the invention overcomes the problems that an alcamine desulfurizer has rapidly reduced desulphurization efficiency at high temperature and hydrogen sulfide removed through reaction may be reversibly released again, and has a temperature application range of 0 to 120 DEG C.

The present invention discloses a retardance and low damage acid solution system for high temperature condensate oil gas reservoir acidification. The acid solution system is suitable for acidification modification of high temperature deep well, particularly condensate gas reservoir, and comprises the following components, by weight, 0.5-3 parts of hydrofluoric acid or 6-12 parts of fluoroboric acid, 8-10 parts of an organic ester, 0.01-0.05 part of a catalyst, 0.1-1 part of a corrosion inhibitor, 0.1-1 part of an iron ion stabilizer, 0.1-1 part of a clay stabilizer, 1-2 parts of a cleanup additive, and 80-100 parts of water. According to the present invention, effects of retardance and corrosion inhibition of the acid solution system can be well achieved at a high temperature, and water blocking can be released and acid solution backflow can be easily achieved with the finally produced methanol and the carbon dioxide.

The invention discloses an anti-freezing fluid for a solar water heater. The anti-freezing fluid is composed of the following components by weight percent: 36-57 percent of glycol, 0.1-0.4 percent of 1H-Benzotriazole, 01.-0.4 percent of mercaptobenzothiazole, 0.5-2 percent of sodium benzoate, 0.1-0.5 percent of sodium gluconate, 1-2 percent of cinnamic acid, 0.5-2 percent of borax, 0.1-1 percent of sodium phosphate, 0.15-0.25 percent of sodium nitrate, 0.1-0.3 percent of sodium hydroxide, 0.005-0.03 percent of an antifoamer, 0.001-0.006 percent of dye and deionized water in balancing amount. The anti-freezing fluid is good in stability, has the PH rangeability smaller than that of a common anti-freezing fluid at high temperature for a long time, does not separate out particles and flocculent precipitates to block a pipeline, and has good rust inhibition effect on metal material for manufacturing the solar heater. Moreover, the invention further provides a preparation method for the anti-freezing fluid, which is simple and easy to operate.