26 results about "Clearing Agent" patented technology

The invention relates to the technical field of lubricating oil, and provides natural gas engine lubricating oil as well as a preparation method and application thereof. The natural gas engine lubricating oil comprises the following components in parts by weight: 1-5 parts of a clearing agent, 1-15 parts of a dispersing agent, 1-10 parts of an antioxidant, 0.1-1 part of a pour point depressant, 0.01-1 part of an anti-foaming agent and 60-95 parts of base oil, the antioxidant comprises ZDDP, an amine type antioxidant and an amino thioester antioxidant according to the weight ratio of 1: (3-8): (3-8). The natural gas engine lubricating oil provided by the invention not only has good high-temperature detergency, oxidation resistance, dispersity and wear resistance through the synergistic effect of different types of antioxidants, but also has excellent nitration resistance, and can completely meet the use requirements of the natural gas engine lubricating oil, and the sulfate ash content can be controlled to be 0.4-0.6%.

The invention discloses a graphene oxide-containing lubricating oil composition for a heavy-load methanol fuel engine. The graphene oxide-containing lubricating oil composition is prepared from the following raw materials: a dispersing viscosity index agent, an antioxidant, an anti-wear agent, a clearing agent, a dispersing agent and base oil. The dispersing type viscosity index improver P (BMA + LMA + TMA + NVP) copolymer contains a strong N polar group, so that graphene oxide does not need to be continuously modified, surface functional groups do not need to be removed, the cost is greatly reduced, industrial application is facilitated, meanwhile, the dispersing type viscosity index improver is applied to a methanol fuel engine, can be absorbed with combustion products such as methanol and formic acid and is more beneficial to dispersion of graphene, and therefore, the dispersing type viscosity index improver has a good application prospect. The graphene additive is very suitable for being applied to methanol fuel engine lubricating oil and can be applied to a large scale in a new field.

The invention provides a cylinder oil composition suitable for a methanol fuel ship and a preparation method of the cylinder oil composition, and particularly relates to the technical field of lubricating oil. The cylinder oil composition suitable for the methanol fuel ship comprises the following components in percentage by mass: 5.0%-20% of a clearing agent, 1.0%-8.0% of an ashless dispersant, 0.5%-1.5% of a composite antioxidant, 0.5%-3% of an anti-wear agent, 0.01%-1% of a metal deactivator and the balance of base oil, the detergent is composed of high-base-number synthetic calcium sulfonate, low-base-number synthetic calcium sulfonate, high-base-number calcium boride sulfonate and high-base-number sulfurized calcium alkyl phenolate. According to the cylinder oil composition for the methanol fuel ship, the scheme of the purification dispersant is optimized, and a plurality of components such as the metal deactivator are introduced for combination, so that the obtained cylinder oil composition for the methanol fuel ship improves the wear resistance and the corrosion resistance of an oil product when the oil product is polluted by methanol and formic acid, and can meet the performance requirements when a marine two-stroke engine uses methanol fuel.

The invention discloses a fuel detergent, a preparation method thereof and a mixed fuel. The fuel clearing agent comprises a clearing agent main agent and an optional auxiliary agent, and the clearing agent main agent comprises a pentene amine compound, polyether amine and a phenylacetone compound. The pentene amine compound, the polyether amine and the phenylacetone compound are combined, the pentene amine compound, the polyether amine and the phenylacetone compound are mixed for use to generate a synergistic effect, the cleaning effect of the fuel detergent can be remarkably improved, the polyether amine provides good dispersity and solubility, the phenylacetone compound can be fully dispersed in fuel, and the cleaning effect of the fuel detergent is improved. The ketone group of the phenylacetone compound can further enhance the removal capability of polyether amine to specific pollutants and improve the cleanliness of the fuel, and the pentene amine compound is combined, so that the combustion efficiency can be further improved and the emission of harmful gas can be further reduced.

The invention discloses a lubricating oil additive composition. The lubricating oil additive composition is prepared from the following components in percentage by mass: 10 to 30 weight percent of zinc dialkyl dithiophosphate, 10 to 30 weight percent of succinimide dispersing agent, 15 to 40 weight percent of metal clearing agent and 5 to 10 weight percent of dialkyl dithiophosphate acrylate anti-wear agent, 10-20 wt% of an alkyl biimidazole phosphate ionic liquid, and 5-10 wt% of an alkylated diphenylamine antioxidant. The alkyl bis-imidazole phosphate ionic liquid and the propylene tetrapolymer alkylated diphenylamine are compounded, so that the lubricating oil has excellent oxidation resistance and corrosion inhibition performance in mineral oil and synthetic oil, can reduce the friction coefficient of oil products, and is suitable for vehicle transmission oil, vehicle drive axles or electric transmissions, and the like. And the service condition requirement of long service life of a vehicle transmission system is met.

The invention belongs to the field of lubricating oil, and particularly relates to a multi-gear gearbox lubricating oil composition as well as a preparation method and application thereof. The multi-gear gearbox lubricating oil composition is prepared from the following raw materials in percentage by mass: 2.0 percent to 4.5 percent of a viscosity index improver, 0.01 percent to 0.08 percent of a clearing agent, 4.5 percent to 7.0 percent of a dispersing agent, 0.3 percent to 1.0 percent of an anti-wear reagent at extreme pressure, 0.05 percent to 0.3 percent of an anti-rust agent, 0.3 percent to 1.5 percent of an antioxidant, 0.01 percent to 0.2 percent of a metal deactivator, 0.3 percent to 1.5 percent of a cross-linking agent, 0.01 percent to 0.03 percent of an anti-foaming agent and the balance of base oil. The cross-linking agent of the composition adopts trimethylolpropane tri (1H-imidazole-1-acetate), so that the wear resistance of an oil product is effectively enhanced, the friction coefficient is reduced, and the friction durability is improved, thereby achieving the effects of prolonging the endurance mileage and prolonging the service life of hardware.

This invention relates to a method for preparing transparent chrome-tanned leather. The method uses undyed or dyed chrome-tanned leather blanks as raw materials, and prepares a clearing agent solution from monomers, initiators, accelerators, and solvents. The chrome-tanned leather blanks and the clearing agent solution are added to a rotating drum and treated at 10-45°C for 1-72 hours. The leather blanks are then heated and cured at 35-95°C for 1-72 hours, and dried to obtain transparent chrome-tanned leather. The transparent leather prepared by this method inherits the excellent comprehensive properties of chrome-tanned leather, including its chemical, physical, and mechanical properties, and offers diversity in the selection of leather types, thicknesses, and colors, meeting the requirements of different application environments in leather products and other fields. The raw materials used in this method are conventional chrome-tanned leather blanks, and the clearing agent components are also common chemical raw materials, readily available, low in cost, and easily scalable for mass production.

The invention belongs to the technical field of heat-conducting oil, and particularly provides high-temperature-resistant heat-conducting oil and a preparation method thereof. The high-temperature-resistant heat-conducting oil comprises composite base oil, an antioxidant, a dispersing agent and a clearing agent, the composite base oil is oligosiloxane in which nano boron nitride is stably dispersed. The high-temperature-resistant heat-conducting oil prepared by the invention has the characteristics of high heat conductivity, high flash point, high use temperature, low residual carbon, low corrosion and long-term stability.

The invention provides a low-deterioration-rate composite mineral oil type organic heat carrier composition and a preparation method thereof, and relates to the technical field of lubricating oil. The composition comprises the following components in percentage by weight: 77.9%-89.26% of class I / class II base oil, 10%-20% of rubber oil, 0.01%-0.1% of a metal deactivator, 0.5%-1% of an antioxidant, 0.1%-0.5% of a clearing agent and 0.1%-0.5% of a dispersing agent. The rubber oil and the I-type / II-type base oil are compounded for use, so that the problem that the sediment performance is poor after the rubber oil is oxidized is solved, and the defect that the I-type / II-type base oil is high in high-temperature thermal stability deterioration rate is overcome.

The invention relates to the technical field of lubricating oil analysis, in particular to a method for judging the precipitation risk of lubricating oil and application. The method comprises the following steps: adding 0.08-1% by mass of water into lubricating oil, heating to 55-65 DEG C at the rotating speed of 550-650r / min, stirring for 8-13 minutes, keeping at 60-80 DEG C, and observing whether floccules appear or not; the lubricating oil comprises a clearing agent, and the clearing agent comprises sulfonate. The method is helpful for rapidly observing the precipitation risk of the lubricating oil, can reduce the time cost of investigation, and is easy to operate.

The invention provides heavy-duty diesel engine lubricating oil and a preparation method and application thereof.The heavy-duty diesel engine lubricating oil comprises base oil and a clearing agent, the clearing agent comprises a compound shown in the formula 1, and the clearing agent in the heavy-duty diesel engine lubricating oil comprises, by mass, 6%-8% of the compound shown in the formula 2; the heavy-duty diesel engine lubricating oil has excellent high-temperature detergency and low sulfate ash content, and low ash content is remained after the heavy-duty diesel engine lubricating oil is combusted in a heavy-duty diesel engine, so that a particle catcher is prevented from being blocked.

The invention belongs to the technical field of lubricating oil, and particularly relates to a fixed natural gas engine oil composition as well as a preparation method and application thereof. The fixed natural gas engine oil composition is characterized by comprising the following components: base oil, an ionic liquid additive, a clearing agent, an anti-oxidation and anti-wear agent, an antioxidant and an ashless dispersant, and the ionic liquid additive is composed of N-trioctyl hexadecyl ammonium cations and dibutyl dithiophosphate anions. The fixed natural gas engine oil composition provided by the invention is suitable for a natural gas compressor power end of an oil and gas field or a gas storage, has excellent oxidation resistance and wear resistance, can meet unique requirements of equipment manufacturers on lubricating oil, and ensures stable operation of equipment.

The invention relates to the technical field of lubricating oil, and provides a low-base-number marine medium-speed engine oil complexing agent, low-base-number marine medium-speed engine oil and a preparation method and application of the low-base-number marine medium-speed engine oil. The low-base-number marine medium-speed engine oil complexing agent comprises a clearing agent, a dispersing agent and an antioxidant, wherein the clearing agent accounts for 50-75wt% of the mass of the complexing agent, the dispersing agent accounts for 17-37wt% of the mass of the complexing agent, and the antioxidant accounts for 8-14wt% of the mass of the complexing agent; the detergent comprises calcium alkyl salicylate and synthetic calcium sulfonate; the mass ratio of the calcium alkyl salicylate to the synthetic calcium sulfonate is 1: (0.1-1). The low-base-number medium-speed engine oil complexing agent provided by the invention can be mixed with base oil to prepare low-base-number medium-speed engine oil with adjustable base number of 12-20, has good detergency and dispersibility, oxidation and wear resistance and excellent water separation performance, and can meet the use requirements of marine medium-speed engine oil.

The invention relates to the technical field of lubricating oil, in particular to a full-methanol fuel engine oil composite additive composition, application of the full-methanol fuel engine oil composite additive composition and full-methanol fuel engine oil. The composite additive composition comprises the following components: a clearing agent which comprises high-base-number calcium alkyl salicylate, low-base-number calcium alkyl salicylate and low-base-number sulfurized calcium alkyl phenolate; the antioxidant comprises an amine type antioxidant and a phenol type antioxidant; the anti-wear agent comprises carbamate, alkyl phosphate amine salt, tricresyl ester, a carboxylic ester derivative and an organic sulfur-phosphorus compound; and the dispersing agent comprises polyisobutylene succinimide. The methanol fuel engine oil thoroughly solves the problems of hydrolysis of lubricating oil additive components and poor acid neutralization capability caused by combustion of methanol fuel, and has better oxidation resistance, wear resistance, cleaning performance, corrosion resistance and dispersion performance compared with the existing full methanol fuel engine oil.

The present invention provides an oil-based drilling fluid oil-clearing agent, comprising: 2 to 15 parts by weight of a penetrant; 8 to 30 parts by weight of an emulsifier; 5 to 20 parts by weight of a complexing agent; 0.5 to 2 parts by weight of a dispersant; and 100 parts by weight of water. The penetrant is selected from a sulfosuccinate salt and / or a polyoxyethylene ether compound; the emulsifier is a polyoxyethylene ether nonionic surfactant; the complexing agent includes sodium ethylenediaminetetraacetic acid; and the dispersant is a phosphate. Compared with the prior art, the oil-based drilling fluid oil-clearing agent provided by the present invention utilizes components in specific amounts, and the components interact well with each other, resulting in an oil-based drilling fluid oil-clearing agent having an excellent cleaning effect and significantly improving the quality of the second interface bonding during cementing. Furthermore, the preparation method of the oil-based drilling fluid oil-clearing agent is simple, the conditions are mild, and it is suitable for large-scale industrial production.

The present invention provides a cementing flushing fluid comprising: 100 parts by weight of water; 1 to 5 parts by weight of a suspending agent; 0.1 to 3 parts by weight of a retarder; 5 to 20 parts by weight of an inhibitor; and 2 to 25 parts by weight of an oil-clearing agent. The oil-clearing agent comprises: a penetrant, an emulsifier, a complexing agent, a dispersant, and water. The penetrant is selected from a sulfosuccinate salt and / or a polyoxyethylene ether compound; the emulsifier is a polyoxyethylene ether nonionic surfactant; the complexing agent comprises sodium ethylenediaminetetraacetic acid; and the dispersant is a phosphate. Compared with the prior art, the cementing flushing fluid provided by the present invention utilizes specific components in specific amounts, each component having different functions, resulting in a cementing flushing fluid having excellent cleaning effectiveness. Furthermore, the cementing flushing fluid is simple to prepare, has a wide applicable temperature range, is heat-resistant up to 240°C, and exhibits excellent flushing effectiveness for oil-based drilling fluids with a low-density solids content of 15%.

The invention belongs to the technical field of lubricating oil preparation, and particularly relates to a special zinc-free hydraulic oil composition for wind power as well as a preparation method and application thereof. The composition is prepared from the following components in percentage by mass: 0.01 to 0.03 percent of a dispersing agent, 10 to 20 percent of a viscosity index improver, 0.2 to 0.4 percent of an anti-wear agent, 0.05 to 0.1 percent of an extreme pressure agent, 0.02 to 0.05 percent of a metal deactivator, 0.1 to 0.3 percent of an antioxidant, 0.05 to 0.1 percent of an anti-rust agent, 0.01 to 0.04 percent of a clearing agent, 0.01 to 0.05 percent of an anti-foaming agent, 0.01 to 0.05 percent of a demulsifying agent and the balance of IV type base oil. The special zinc-free hydraulic oil for wind power, which meets the oil demand of a wind generating set and has an ultrahigh viscosity index, is prepared, and the product has excellent low-temperature fluidity, viscosity-temperature property, oxidation stability and long oil change period.

The invention provides a high-temperature detergency zinc-free hydrogenated hydraulic oil composition, and relates to the technical field of hydraulic oil additives. The hydraulic oil composition is prepared from the following components in percentage by weight: 0.2 percent to 0.4 percent of an anti-wear agent, 0.05 percent to 0.1 percent of an extreme pressure agent, 0.02 percent to 0.05 percent of a metal deactivator, 0.1 percent to 0.3 percent of an antioxidant, 0.05 percent to 0.1 percent of an anti-rust agent, 0.01 percent to 0.03 percent of a cosolvent, 0.01 percent to 0.04 percent of a clearing agent, 0.2 percent to 1.0 percent of a pour point depressant, 0.01 percent to 0.05 percent of a de-foaming agent, 0.01 percent to 0.05 percent of a de-emulsifier and 98 percent to 99 percent of II type or III type base oil. The hydraulic oil disclosed by the invention has excellent wear resistance, water separation property, filterability, anti-rust property, hydrolytic stability, oxidation resistance, thermal stability and high-temperature detergency.

The invention provides a dispersing type PMA viscosity index agent-containing lubricating oil additive for an ammonia fuel engine and a composition. The preparation process of the composition comprises the following steps: mixing the viscosity index agent dry glue blocks with part of the base oil according to the formula proportion, heating to 100-130 DEG C, stirring, dissolving, and standing for 6-8 hours to obtain a product a; and putting the product a and the remaining base oil into a blending kettle, sequentially adding a clearing agent, an antioxidant, an anti-wear and anti-friction agent and a corrosion inhibitor according to the formula proportion, starting to stir, heating to 40-50 DEG C, keeping the temperature, and continuously stirring for 4-10 hours to obtain the lubricating oil composition containing the dispersing type PMA viscosity index improver for the ammonia fuel engine. Through specific additive combination, hydrolysis resistance and ammonia corrosion resistance are enhanced, oil-water emulsification is stabilized, sediment generation is inhibited, wear resistance is improved, and reliable operation of an ammonia fuel engine lubricating system is guaranteed.

The invention provides an additive composition and a lubricating oil composition for improving metal protection capability and oxidation resistance of special hybrid transmission oil. The additive composition comprises the following components in parts by weight: 2.0 to 3.5 parts of a viscosity index improver, 0.05 to 0.1 part of a clearing agent, 4.5 to 7.5 parts of a dispersing agent, 0.3 to 1.0 part of an anti-wear reagent at extreme pressure, 0.05 to 0.3 part of an anti-rust agent, 0.1 to 1.0 part of a phenolic antioxidant, 0.01 to 0.2 part of a metal deactivator and 0.01 to 0.03 part of an anti-foaming agent, wherein the antirust agent is N, N-bis (benzotriazole methylene) oleylamine, and the phenolic antioxidant is of a structure shown in the invention. The composition provided by the invention has excellent solubility, can improve the passivated metal activity and anti-rust performance of a lubricating oil additive, and improves the protection capability of lubricating oil on metal. The composition provided by the invention is stable in performance and meets the lubrication requirement of a special hybrid gearbox system.

This utility model relates to the technical field of spray release agent devices, and discloses an automatic spray release agent device, including slides symmetrically arranged on both sides of a mold, a hollow tube disposed on the slides, a film-clearing agent stored inside the hollow tube, and multiple spray holes evenly distributed on its peripheral wall, and a motor driven by the slides. The motor drives the hollow tube to move in a uniform linear motion along the slides, so that the film-clearing agent is evenly sprayed onto the mold surface through the spray holes under pressure. The slide includes a linear guide rail and a slider, and the slider is fixedly connected to the hollow tube. In this utility model, the motor drives the hollow tube to move in a uniform linear motion along the linear guide rail, and with the guidance of the evenly distributed spray holes on the peripheral wall of the hollow tube and the guiding effect of the flow guide, the film-clearing agent is evenly sprayed onto the mold surface. This design completely avoids the problem of uneven thickness caused by traditional manual spraying methods, significantly improves the demolding effect, reduces product surface defects, and improves yield and appearance quality.

The invention relates to the technical field of lubricating oil, and provides a low-base-number marine cylinder oil composition as well as a preparation method and application thereof. The low-base-number marine cylinder oil composition is prepared from 10 to 25 parts by weight of a clearing agent, 1 to 10 parts by weight of a dispersing agent, 1.5 to 5 parts by weight of an antioxidant, 0.1 to 1 part by weight of an anti-rust agent and 70 to 85 parts by weight of base oil, the nitrogen content of the dispersing agent is 400 to 1000 ppm; the phosphorus content of the antioxidant is not less than 1000 ppm; the calcium content of the cylinder oil composition is not less than 16000 ppm; the base number of the low-base-number marine cylinder oil composition is 30 to 50 mg KOH / g. The low-base-number marine cylinder oil composition provided by the invention can be used for lubricating a cylinder part of a marine low-speed two-stroke crosshead diesel engine using fuel with the sulfur content of less than 0.5%, has excellent detergency and dispersibility, oxidation resistance and wear resistance, has excellent comprehensive performance, and can be authenticated by MAN Cat.II.

The invention provides special lubricating oil for a methanol engine, which is prepared from the following components in parts by weight: 75 to 95 parts of base oil, 0.3 to 2.5 parts of an antioxidant, 0.1 to 1 part of an anti-rust agent, 0.5 to 3 parts of a clearing agent, 0.2 to 3 parts of a dispersing agent, 0.001 to 0.1 part of an anti-foaming agent, 0.5 to 5 parts of an anti-friction and anti-wear agent, 1 to 10 parts of a viscosity index improver, 0.1 to 0.5 part of a pour point depressant and 0.5 to 7 parts of a polarity improver, the polarity improver is dimer acid / polyethylene glycol ester, and the molecular weight of the polarity improver is 800 to 1500 g / mol. The lubricating oil provided by the invention has excellent wear resistance, viscosity-temperature performance, rust resistance, corrosion resistance and oxidation resistance. The invention further provides a preparation method of the lubricating oil.

The invention discloses energy-saving diesel engine oil with ultra-long oil change mileage and a preparation method thereof, and belongs to the technical field of engine oil. The preparation method of the diesel engine oil comprises the following steps: heating the base oil to 70-80 DEG C, then adding the viscosity index improver, the clearing agent, the dispersing agent, the extreme pressure anti-wear agent, the antioxidant preservative, the antirust agent, the pour point depressant and the anti-foaming agent, and stirring for 2.5-3.5 hours to obtain a semi-finished product of the diesel engine oil; and then cooling to 45 DEG C, filtering under the positive pressure of 0.2 MPa, and naturally cooling to normal temperature to obtain the finished product diesel engine oil. The prepared diesel engine oil has excellent wear resistance, oxidation resistance and cleaning performance, and the dynamic friction coefficient can be effectively reduced; and therefore, the operation efficiency of the internal combustion engine can be improved, power loss caused by friction and oxidation is reduced, and an ultra-long oil change period is achieved while energy consumption is saved.

The invention belongs to the technical field of lubricating oil preparation, and particularly relates to a special zinc-containing hydraulic oil composition for wind power as well as a preparation method and application thereof. The composition comprises the following components in percentage by mass: 0.01-0.03% of a dispersing agent, 5-10% of a viscosity index improver, 0.2-0.4% of an anti-wear agent, 0.05-0.1% of an extreme pressure agent, 0.02-0.05% of a metal deactivator, 0.1-0.3% of an antioxidant, 0.05-0.1% of an anti-rust agent, 0.01-0.04% of a clearing agent, 0.01-0.05% of an anti-foaming agent, 0.01-0.05% of a demulsifying agent and the balance of base oil, and the chemical structural formula of the dispersing agent is as shown in formula (1). The high-viscosity-index zinc-containing hydraulic oil special for wind power, which meets the oil demand of a wind generating set, is prepared, and the product has excellent low-temperature fluidity, viscosity-temperature property, oxidation stability and long oil change period.

The invention relates to an antioxidant lubricating oil composition and a preparation method thereof, and belongs to the technical field of lubricating oil. The composition is prepared from the following components in percentage by weight: 3.8 to 4.4 percent of an extreme pressure anti-wear agent, 2.5 to 3.0 percent of a clearing agent, 2.2 to 2.8 percent of an oily additive, 0.75 to 0.92 percent of a modified antioxidant, 1.7 to 2.1 percent of an ashless dispersant, 0.4 to 0.5 percent of an anti-rust agent, 3.5 to 4.2 percent of a viscosity index improver and the balance of polyol ester base oil, the modified antioxidant is a compound with a three-branch naphthylamine structure and a central quaternary ammonium structure formed by click addition of triallylamine and 4-chlorobenzyl mercaptan, quaternization of iodoethane and substitution of 2-naphthylamine, the modified antioxidant has good antioxidant capacity at high temperature, and meanwhile, the oil sludge amount of the lubricating oil at high temperature is effectively reduced.