205results about How to "Good fluidity at low temperature" patented technology

The invention belongs to the field of oil transportation, and particularly relates to a crude oil viscosity-breaking pour-point depressant composition, and a preparation method and application thereof. At the temperature of higher than plasticizing temperature of organic pour-point depressant, 0-3% by mass of coupling agent, 0-10% by mass of high-molecular processing assistant, and the balance ofinorganic pour-point depressant and organic pour-point depressant are melted, uniformly mixed and granulated to obtain the crude oil viscosity-breaking pour-point depressant composition. The crude oil viscosity-breaking pour-point depressant composition is uniformly dispersed in a liquid dispersion medium, and proportionally injected into crude oil, so that the crude oil can be transported. The inorganic pour-point depressant and organic pour-point depressant in the crude oil viscosity-breaking pour-point depressant composition have a synergetic effect, and can effectively lower the solidifying point and viscosity of the waxy crude oil, so that the crude oil has favorable fluidity at low temperature and favorable rheologic timeliness, thereby enhancing the crude oil transportation efficiency and safety level and lowering the transportation cost.

The invention provides lubricating oil compound and a preparation method thereof. The lubricating oil compound comprises 50-80wt% of poly alpha olefin, 19-39 wt% of ester oil, 0.1-3.0wt% of antioxidant, 0.01-0.5wt% of metal passivator, 0.1-3.0wt% of corrosion inhibitor, 0.5-5.0wt% of extreme pressure antiwear agent and 0.0005-0.05wt% defoaming agent. Compared with existing lubricating oil, the lubricating oil compound has the advantages that the poly alpha olefin in the lubricating oil is good in viscosity-temperature performance, low-temperature flowability and good in thermal oxidation stability; by the ester oil with good oxidation stability and high-temperature performance, high temperature oxidation performance of the lubricating oil compound can be increased; additives with good oxidation stability and extreme pressure antiwear performance are added to form a composite system, and the lubricating oil compound is good in extreme pressure lubricity and high-temperature oxidation stability under interaction of the additives.

The invention belongs to the field of diesel additive and particularly relates to a diesel pour point depressant and a method for preparing the diesel pour point depressant. The diesel pour point depressant overcomes the defects of the prior pour point depressant and can be used for greatly reducing the cold filter plugging point and the pour point of diesel. In addition the diesel pour point depressant can be widely applied to various diesels, thereby having low limitation.

The invention provides a stepless variable device transmission fluide compound. It comprises following components with their percentage on base oil weight: (1) bicyclo alicyclic hydrocarbon base oil, (2) alkali metal salt detersive, 0.05- 3%, (3) ashless dispersant 1- 15%, (4) phenol or amine anti- oxidant, 0.01- 1%, (5) antiwear agent, 0.05- 2%, (6) friction improver. 0.05- 3%, (7) viscosity index improver, 0-20%, (8) antifoam agent, 0- 1000ppm. The transmission fluide is characterized by good viscosity-temperature characteristic and low- temperature flowability, high drag coefficient at normal temperature, good comprehensive performance, and satification for CVT use requirement.

The invention relates to a refrigerant machine oil composition, comprising a mixed Alpha olefin polymer oil which is adopted as base oil and additive, wherein, a viscosity of the mixed Alpha olefin polymer oil at 40 DEG C ranges from 3 square millimeter per second to less than 6 square millimeter per second; the mixed Alpha olefin polymer oil is C15-C22 mixed isoolefine, C15-C22 mixed isoparaffin or the mixture of C15-C22 mixed isoolefine and C15-C22 mixed isoparaffin. The refrigerant machine oil composition provided by the invention has the advantages that: (1) good solubility with R600A refrigerating fluid, and floc point being lowered to minus 70 DEG C; (2) excellent fluidity in low temperature, with a pour point lowering to minus 70 DEG C, and a kinematic coefficient of the viscosity being less than 500 square millimeter per second at minus 40 DEG C; (3) comparatively apparent energy saving effect which is respectively higher than the refrigerant machine oil with a viscosity of 22 and 10 square millimeter per second by 14 percent and 4 percent at 40 DEG C.

The invention is suitable for the field of new materials, and provides a type of biodegradable lubricating oil and a preparation method thereof. The biodegradable lubricating oil comprises hindered polyol ester, inorganic nanoparticles and diluents, wherein the hindered polyol ester is prepared by mainly using a bio-enzyme catalysis method. The lubricating oil, prepared according to the preparation method provided by the invention, has the characteristics of excellent heat stability and oxidization stability, good hydrolytic stability, low temperature fluidity, viscosity-temperature property, lubrication property and biodegradability, and can be applied to the fields of aviation, metal processing, textile and tanning.

The invention discloses a methanol diesel oil additive and simultaneously discloses methanol diesel oil with the methanol diesel oil additive. The methanol diesel oil prepared by the invention is prepared by mixing 0.04-0.07 part of ferrocene, 2-5 parts of acetone, 4 parts of diemethyl carbonate, 2-3 parts of isobutanol, 2-3 parts of toluene, 70 parts of diesel oil and 20-25 parts of methanol. The methanol diesel oil has the advantages of low corrosion, good intersolubility and swelling property, uniform texture, high flash point, low condensation point and high cetane number, is safe to use and meets all indexes of automobile diesel oil GB19147-2009. The methanol diesel oil can be applied to internal-combustion engines, general engines, power plant fuels, burner substances and the like, thus the applicable range of the methanol diesel oil is wide.

The invention discloses an open gear lubricating oil, which is characterized by the following: adopting synthesized oil as basic oil; making polyplant oil as thickener; adding auxiliary thickener, extreme-pressure agent, antirust agent and anti-oxidant; possessing excellent stickiness and low-temperature fluidity.

The invention provides a phosphate ester hydraulic oil composition. The composition provided in the invention comprises phosphate ester base fluid, a viscosity index improver, an antioxidant, a metal corrosion inhibitor, an anti-rust agent, an anti-electroerosion agent, and an acid capturing agent. Specifically, the phosphate ester base fluid is composed of tri-butyl phosphate, triisobutyl phosphate and alkyldiaryl phosphate. The viscosity index improver is prepared by a polymerization reaction of an alkyl alkylacrylate monomer and an isoalkyl alkylacrylate monomer. The phosphate ester hydraulic oil composition provided by the invention has excellent flame resistance, low temperature fluidity, shear stability, oxidation resistance, metal corrosion inhibition performance, anti-electroerosion performance and rust resistance.

The invention provides a phosphate-hydraulic oil composition. The phosphate-hydraulic oil composition comprises tributyl phosphate, trisisobutyl phosphate and alkyl diaryl phosphate, wherein the tributyl phosphate occupies 60-90% of a total mass of a base solution; the trisisobutyl phosphate occupies 1-35% of the total mass of the base solution and the alkyl diaryl phosphate occupies 1-30% of the total mass of the base solution. A viscosity index improver prepared by polymerization of alkyl (alkyl)acrylate monomers and alkyl (isomeric alkyl)acrylate monomers can also be added in the composition. The phosphate-hydraulic oil composition provided by the invention has excellent flame resistant properties, low-temperature fluidity, shearing stability properties, antioxidant performance, metal corrosion inhibition performance, electrical erosion resistance and anti-corrosion performance.

A process for the production of hydrocarbon oil, characterized by comprising subjecting a synthetic oil obtained by the Fischer-Tropsch process to fractional distillation to obtain a middle cut which has a content of distillates having boiling points of 150 to 360 DEG C of 90% by mass or above and a content of distillates having boiling points of 350 DEG C or above of 5% by mass or below and a wax component heavier than the middle cut, bringing the middle cut and the wax component separately into contact with a hydrogenation catalyst in the presence of hydrogen, mixing the hydrogenated middle cut with the hydrogenated wax component, and subjecting the mixture to fractional distillation to obtain a hydrocarbon oil which has a content of distillates having boiling points of 150 to 360 DEG C of 86% by mass or above and a content of distillates having boiling points of 350 DEG C or above of 5% by mass or above.

The invention discloses a method for preparing a resin with good low temperature fluidity, which is implemented by the steps of: 1) mixing cut fraction rich in styrene-indene with dication catalyst and reacting, adding methanol after finishing reaction, standing for layering, taking the liquid of the lower layer, and distilling to obtain fluid sticky liquid; 2) mixing octyl group phenols resin, rare earth chloride, methanol and toluol and reacting when stirring, and removing methanol and toluol to obtain solid resin; and 3) mixing the sticky liquid, the solid resin, alkyne resin and white carbon black for reacting to obtain the resin with good low temperature fluidity. The inventive resin has good low temperature fluidity and stickiness, is applicable for production of wedge, and can realize bonding of tyre body and tyre surface; the vulcanization of wedge is not influenced in the process of vulcanizing the tyre in overhauling, the low temperature fluidity of the middle wedge is good, self-stickiness and mutual stickiness are excellent, and the inner quality of the tyre in overhauling is improved.

The invention discloses special vibration absorber oil for a railway locomotive and a preparation method thereof. The vibration absorber oil comprises the following components in part by weight: 86.77 to 89.187 parts of special base oil, 10 to 12 parts of viscosity index improver, 0.8 to 1.2 parts of complexing agent, 0.003 to 0.01 part of extreme pressure enhancing agent and 0.01 to 0.02 part of composite defoaming agent. The method comprises the following steps of: distilling and cutting refined low-viscosity mineral oil serving as a raw material into narrow fraction base oil, performing deep de-waxing and clay refining on the narrow fraction base oil to obtain the special base oil, and then adding the viscosity index improver, the complexing agent and the defoaming agent into the special base oil to obtain the vibration absorber oil. The special vibration absorber oil for the railway locomotive has good vibration absorption, lubricating property, low-temperature liquidity, shearing safety and anti-oxidation rustproof performance, and particularly has high viscosity index (more than 190); and the function of the vibration absorber oil is not affected by extremely cold regions and hot regions. The special vibration absorber oil for the railway locomotive is oil mainly applied to vibration absorbers of trains and railway locomotives, can obviously improve the vibration absorption effect and lubricating property after being used, meanwhile prolongs the service life of machinery, and improves the safety factors of vehicles.

The invention discloses a biodiesel with low temperature liquidity and a preparation method of the biodiesel. The biodiesel with low temperature liquidity comprises 2.5-30 percent by volume of direct coal liquefaction hydro-upgraded modified full-fraction oil and 70-97.5 percent by volume of illegal cooling oil biodiesel. The preparation method of the biodiesel comprises the step: after mixing the illegal cooking oil biodiesel and the direct coal liquefaction hydro-upgraded modified full-fraction oil, and standing for 8-12 hours to obtain the biodiesel with low-temperature liquidity. According to the biodiesel with low temperature liquidity, the pour point, the cloud point, the flash point, the kinematic viscosity, the oxidation stability, the heat value, the density and the acid value of mixed oil are detected according to the GB_T20828-2007, and accord with relevant requirements of EN14214 and ASTMD6751 for the technical performance of the biodiesel through detection. Compared with the illegal cooking oil biodiesel, the biodiesel has the advantages that the cloud point is reduced by 1-8 DEG C, the pour point is reduced by 2-10 DEG C, namely, the low temperature liquidity is remarkably improved, and the preparation method is simple and effective.

The invention discloses a concentrated liquid laundry detergent, which includes a surfactant, a thickening agent and deionized water. Specifically, the surfactant contains fatty alcohol polyoxyethylene ether sodium sulphate, modified thickening fatty alcohol-polyoxyethylene ether, lauramidopropylamine oxide and coconut oil fatty acid diethanolamide. The thickening agent is sodium chloride. The concentrated liquid laundry detergent has mild formula and strong detergency, even if it is diluted by two times of water, the viscosity is higher than that before dilution, thus bringing consumers intuitive feelings about concentrated products. Therefore, the usage amount is reduced, wasting is avoided, and also the purpose of environmental protection is achieved.

The invention discloses graphene-inorganic nonmetallic fiber containing plant composite engine oil and a preparation method thereof. The preparation method comprises the following steps: adding graphene-inorganic nonmetallic fiber, liquid graphene, 1-octyl-3-methylimidazolium tetrafluoroborate into castor oil, stirring, then adding 2,2,4-trimethyl-1,3-pentanediol-isobutyric benzoate, didodecylmethyl tertiary amine, dimethyl glutarate, 12-hydroxystearic acid, a demulsifying agent, 1-3 parts of an antifreezing agent, an antiseptic and antirust agent, 2,6-di-tert-butyl-4-methylphenol, sasol wax,zinc dipentyl dithiocarbamate, triethanolamine oleate, oxidized polyethylene wax and fatty acid polyethylene glycol ester, and stirring to obtain the graphene-inorganic nonmetallic fiber containing plant composite engine oil. The graphene-inorganic nonmetallic fiber containing plant composite engine oil has good lubricity, viscosity-temperature properties, low-temperature fluidity and corrosion resistance and other characteristics, and has good comprehensive performance.

The invention belongs to the technical field of daily supplies, and particularly relates to multiple-effect anti-hair loss shampoo and a preparation method thereof. The multiple-effect anti-hair lossshampoo is prepared from a multiple-effect anti-hair loss extracting solution, a foaming agent, a thickening agent, a conditioner, an acidity regulator, an antipruritic agent, a viscosity regulator, amoisturizing agent, a preservative, essence and water. The multiple-effect anti-hair loss shampoo adopts a natural medicinal plant formula, various active traditional Chinese medicine essence ingredients are fused, special effects of Chinese herbal medicines are fully given play to, the shampoo can be quickly absorbed by hair follicles, the shampoo does not irritate hair and does not damage the hair, the shampoo can be quickly absorbed deep in the hair follicles, blood circulation of the scalp is promoted, the life vigor of the hair follicles is kept, and the shampoo has the advantages of caring the hair and continuously improving hair loss and is suitable for various kinds of hair-loss people.