388 results about "Pour point" patented technology

The invention relates to the field of intelligent preparation, and provides high-temperature-resistant and high-pressure-resistant lubricating oil and a preparation method thereof.The preparation method comprises the steps that a-olefin synthetic oil in a preset proportion is added into a blending kettle provided with a stirring device, then an antioxidant preservative, an extreme-pressure phosphorus-containing ash-free anti-wear agent and an amine high-temperature antioxidant are sequentially added into the blending kettle, stirring is conducted, and the high-temperature-resistant and high-pressure-resistant lubricating oil is obtained; the preparation method comprises the following steps: uniformly stirring at a first constant temperature to obtain a primary mixture, sequentially adding an antirust agent, a metal cleaning agent and a pour point depressant into the mixture, continuously stirring at a second constant temperature, intelligently controlling the stirring time by deeply analyzing the stirring state of the mixture in the stirring process, and finally preparing the high-temperature-resistant and high-pressure-resistant lubricating oil. Therefore, the quality and the performance of the high-temperature-resistant and high-pressure-resistant lubricating oil product can be effectively ensured.

The invention discloses high-performance anti-wear engine lubricating oil as well as a preparation method and application thereof. The high-performance anti-wear engine lubricating oil is prepared from the following raw materials: self-developed lubricating oil base oil, poly-alpha-olefin, zinc dialkyl dithiophosphate, calcium sulfonate, polyisobutylene succinimide, an antioxidant, polymethacrylate, an organic molybdenum complex, a de-foaming agent and a pour point depressant. The preparation method comprises the following steps: 1) synthesizing 9, 10-bis (2-tert-butyl-4-methylphenoxy) trimethylolethane stearate as base oil of the lubricating oil; and 2) mixing the base oil with other assistants to obtain the high-performance anti-wear engine lubricating oil. According to the preparation method, novel-like synthetic ester oil is firstly prepared, a phenol group and a large steric hindrance substituent group are introduced into a polymer, the anti-oxidation function is directly built in base oil molecules, meanwhile, super-strong heat resistance is achieved, and finally the high-performance anti-wear engine lubricating oil is obtained and can be applied to high-end application scenes such as aero-engines or gas turbines.

The invention relates to a pour point depressing paraffin inhibitor and a preparation method thereof. The pour point depressing paraffin inhibitor is prepared from the following raw material components: graphene oxide, acrylic acid, a dispersing agent, a catalyst and a solvent, wherein the content of the graphene oxide is 4%-14.5% by mass, the content of the acrylic acid is 38%-76% by mass, the content of the dispersing agent is 4%-6% by mass, and the content of the catalyst is 1%-2% by mass. The graphene oxide is introduced into the pour-point depressing paraffin inhibitor provided by the invention, the size nanocrystallization is easy to prevent the formation of wax crystals in crude oil, the pour-point depressing effect is good, and the crude oil is conveniently exploited from a shaft and transported by a crude oil pipeline.

The invention relates to the technical field of marine fuel oil additives, and particularly provides a marine fuel oil purification synergist and a preparation method thereof. The marine fuel oil purification synergist comprises the following components in percentage by mass: 8%-12% of a sulfur capturing agent, 15%-20% of a core-shell dispersing agent, 5%-8% of a lubricating agent, 0.5%-1% of an antioxidant, 1%-2% of a pour point depressant and the balance of a solvent. The marine fuel oil purification synergist has the advantages of high flash point, sulfur inhibition, combustion enhancement and dispersion stability. The multi-component synergistic system not only greatly improves the combustion efficiency of the marine fuel oil, but also effectively inhibits the emission of harmful substances, obviously reduces the carbon deposition and wear of an engine, and keeps the cleanliness of a fuel oil system. In practical application, the synergist shows excellent environment-friendly benefits and economic benefits, and a green fuel solution which can meet increasingly strict requirements of environment-friendly laws and regulations and can reduce the operation cost is provided for the ship industry.

The invention relates to the technical field of pour point and condensation point measurement, in particular to a pour point and condensation point precise measurement method, system and equipment. The method comprises the following steps of: determining a condensation tendency index according to a temperature data sequence fluctuation characteristic, a humidity data sequence change trend and a coupling difference characteristic between temperature and humidity data sequences; a control redundancy index is determined according to the continuous working time of the fan, the condensation tendency index and the numerical deviation characteristics between the power and humidity data sequences; according to the instantaneous change characteristics of adjacent data points in the humidity data sequence, the temperature data sequence and the power data sequence of the current time window, determining a collaborative benefit index; determining a comprehensive evaluation score according to the collaborative benefit index and the control redundancy index; controlling the fan to execute a corresponding operation strategy according to the comprehensive evaluation score and a preset mapping relation between the score and the operation strategy; the operation strategy is repeatedly adjusted until the pour point and the condensation point of the sample are determined, and therefore the fan power responds to environment changes in real time.

The invention relates to the technical field of biological aviation kerosene, and discloses a process for preparing biological aviation kerosene from waste grease. The method comprises the following steps: introducing waste oil into a hydrofining reactor, introducing hydrogen, carrying out a hydrodeoxygenation reaction under the catalysis of a hydrogenation catalyst, carrying out a reaction on the obtained hydrodeoxygenated oil in an isomerization pour point depressing reactor, and finally carrying out isomerization hot high-pressure separation treatment, isomerization cold high-pressure separation treatment and rectification tower segmentation to obtain the biological aviation kerosene. The specific surface area of a carbon matrix of the hydrogenation catalyst is large, the void structure is rich, a large number of Ni-Mo-P active catalytic centers can be exposed, precious metals such as platinum and ruthenium do not need to be added, the hydrodeoxygenation reaction efficiency of waste oil and fat is remarkably improved, the mass fraction of branched paraffin and cycloparaffin in biological aviation fuel is high, and the combustion performance is better.

The invention relates to the technical field of lubricating oil, and discloses a low-temperature-resistant lubricating oil composition and a preparation method thereof. Mineral oil, modified polymethacrylate, a dispersing agent, an antioxidant and an oil defoaming agent are stirred and mixed and then filtered, and the low-temperature-resistant lubricating oil composition is obtained. The cross-linking agent enables polymethacrylate to form a light cross-linked structure, and stress can be dispersed during shearing; nitrogen atoms in triazinyl, pyridyl, pyrrolidone and Mannich base structures serve as hydrogen bond receptors, the hydrogen bond interaction with hydroxyl on a polymethacrylate molecular chain is enhanced, a physical cross-linked network is formed, and the shear resistance is further improved; in the modified low-temperature-resistant monomer, the glass-transition temperature can be remarkably reduced by high flexibility of silicon oxygen bonds in long straight-chain alkyl and silane groups, so that a molecular chain can still move at a low temperature, and the low-temperature fluidity of the lubricating oil is improved; the cyclic structure of cyclohexyl can effectively interfere with the ordered arrangement of wax crystals, reduce the pour point of the lubricating oil and improve the low-temperature fluidity.

The invention belongs to the technical field of crude oil pour point depressants, and particularly relates to a crude oil pour point depressant and a preparation method thereof. The crude oil pour point depressant comprises a lauryl methacrylate-maleic anhydride-(alpha-methylstyrene) terpolymer, 50-60 parts of a modified ethylene-vinyl acetate copolymer, 10-20 parts of an inorganic nano pour point depressant a, 10-15 parts of an inorganic nano pour point depressant b, 0.5-1.5 parts of an antioxidant and 1-3 parts of a lubricant, the preparation method comprises the following steps: adding the terpolymer, the modified ethylene-vinyl acetate copolymer, the inorganic nano pour point depressant a, the inorganic pour point depressant b, the antioxidant and the lubricant into the solvent oil, and stirring to obtain the crude oil pour point depressant. According to the crude oil pour point depressant disclosed by the invention, an efficient, stable and environment-friendly solution is provided for long-distance wax-bearing crude oil pipeline transportation through nano hybridization, multi-component synergy and the like.

The invention relates to the technical field of insulating oil, and particularly discloses antioxidant insulating oil as well as a preparation method and application thereof. The antioxidant insulating oil provided by the invention comprises synthetic oil, a composite antioxidant and a pour point depressant, the composite antioxidant is prepared from the following components in parts by weight according to the weight of the composite antioxidant: 15 to 25 parts of N-phenyl-1-naphthylamine, 25 to 40 parts of antioxidant 5057, 15 to 25 parts of 3-diisobutoxy thiophosphoryl thio-2-methyl-propionic acid and 10 to 15 parts of tetraethylene glycol dimethyl ether trihydrate; the invention also provides a preparation method of the antioxidant insulating oil. The antioxidant insulating oil provided by the invention not only has good insulativity and heat dissipation performance, but also has excellent oxidation resistance, and can meet the use requirements in a long-time high-temperature electric field environment when being used for a motor of an electric motorcycle.

A C16 alkane composition containing at least 90 wt. % C16 alkanes and having a 100 °C kinematic viscosity from 0.9 to 1.5 cSt, a 40 °C kinematic viscosity from 2 to 3.6 cSt, and a flash point from 115 to 140 °C and / or a pour point from -60 to -30 °C. A C24 alkane composition containing at least 90 wt. % C24 alkanes and having a 100 °C kinematic viscosity from 2 to 3 cSt, a 40 °C kinematic viscosity from 7.7 to 9.7 cSt, and a flash point from 185 to 215 °C and / or a pour point from -95 to -70 °C. An alkane composition containing from 5 to 95 wt. % C16 alkanes and from 95 to 5 wt. % C24 alkanes, based on a total weight of the C16 alkanes and the C24 alkanes.

The invention belongs to the technical field of hydraulic oil preparation, and particularly relates to anti-wear hydraulic oil and a production process thereof. The anti-wear hydraulic oil is prepared from the following raw materials in percentage by mass: 2 to 2.2 percent of an anti-wear complexing agent, 0.002 to 0.003 percent of a demulsifying agent, 0.001 to 0.0015 percent of an anti-foaming agent, 0.03 to 0.04 percent of an anti-rust agent, 0.1 to 0.3 percent of a pour point depressant, 0.3 to 0.5 percent of a dispersing agent and the balance of base oil. According to the anti-wear hydraulic oil disclosed by the invention, a mixture of 500N II type base oil, 100N III type base oil, CTL 4 base oil and trimethylolpropane trioleate is used as base oil, and an anti-wear complexing agent, a demulsifier, an anti-foaming agent, an anti-rust agent, a pour point depressant and a dispersing agent are added into the base oil; the prepared anti-wear hydraulic oil is ensured to have excellent extreme pressure property, thermal oxidation stability and wear resistance.

The invention provides a non-asphalt-based self-adhesive and a pre-laid waterproof coiled material and application thereof. The non-asphalt-based self-adhesive glue is prepared from the following raw materials in parts by weight: 120 to 150 parts of environment-friendly softening oil, 50 to 100 parts of petroleum resin, 15 to 35 parts of SBS elastomer resin, 25 to 35 parts of butadiene styrene rubber, 10 to 18 parts of high-temperature modified wax, 5 to 15 parts of density regulator, 5 to 10 parts of pour point depressant and 35 to 40 parts of inorganic filler. The pre-paved waterproof coiled material comprises a sand layer, a first adhesive layer, a reinforced tire base layer, a second adhesive layer and an anti-sticking layer which are arranged in sequence. According to the non-asphalt-based self-adhesive glue provided by the invention, a high-performance non-asphalt-based self-adhesive lap joint pre-paved anti-adhesive waterproof coiled material can be obtained, and compared with an asphalt pre-paved waterproof coiled material, the non-asphalt-based self-adhesive lap joint pre-paved anti-adhesive waterproof coiled material has the characteristics of being more environment-friendly, more durable, better in adhesion and better in waterproof effect; compared with the existing high-molecular pre-paved waterproof coiled material, the high-molecular pre-paved waterproof coiled material has the characteristics of lower cost, higher manufacturing efficiency, better fitness, excellent comprehensive performance and the like.

The invention discloses a vinyl copolymer pour point depressant as well as a preparation method and application thereof, and relates to the technical field of vinyl copolymer pour point depressants. Acrylamide, a methacrylate compound, a fumaric acid compound and alkyl coupling agent modified nano silicon dioxide are used as monomers, and the prepared copolymer pour point depressant has the characteristics and characteristic chemical bonds of copolymer macromolecules; due to the specific molecular chain and structure of the copolymer, the flexibility and flexibility variation range of copolymer molecules in the presence of dissolution or a solution is extremely large, crude oil can be quickly and effectively dispersed, the fluidity of the crude oil can be enhanced, blockage is reduced, and the oil production amount is increased; and the condensation point and the viscosity of crude oil can be obviously reduced under the condition of a very small amount (such as 500ppm).

A C16 alkane composition containing at least 90 wt. % C16 alkanes and having a 100° C. kinematic viscosity from 0.9 to 1.5 cSt, a 40° C. kinematic viscosity from 2 to 3.6 cSt, and a flash point from 115 to 140° C. and / or a pour point from −60 to −30° C. A C24 alkane composition containing at least 90 wt. % C24 alkanes and having a 100° C. kinematic viscosity from 2 to 3 cSt, a 40° C. kinematic viscosity from 7.7 to 9.7 cSt, and a flash point from 185 to 215° C. and / or a pour point from −95 to −70° C. An alkane composition containing from 5 to 95 wt. % C16 alkanes and from 95 to 5 wt. % C24 alkanes, based on a total weight of the C16 alkanes and the C24 alkanes.

The invention relates to a micro-fluidic chip pour point depressant intelligent screening and optimizing device and method integrating multi-parameter detection, and the micro-fluidic chip pour point depressant intelligent screening and optimizing device integrating multi-parameter detection comprises an experiment module, a data acquisition module and a data analysis and control module, the experimental module comprises a power area, a conveying area, a temperature control area, an imaging area and a recovery area, the imaging area comprises a polarizing microscope and a micro-fluidic chip, the micro-fluidic chip comprises a sample introduction channel, a storage chamber, a micro-mixing chamber, a wax precipitation chamber and a temperature control system, and the micro-mixing chamber realizes efficient mixing of a pour point depressant and crude oil; the wax precipitation chamber simulates the complex flow state environment of a real oil pipeline, a wax crystal morphology observation area, a wax crystal motion behavior observation area and a wax crystal dynamic behavior observation area are arranged, the wax crystal flow state is observed, and wax crystal dynamic parameters are collected; through dynamic time sequence modeling of LSTM and strategy gradient optimization of PPO, efficient dynamic adjustment of a pour point depressant formula is realized.

The invention provides a gas engine lubricating oil composition and a preparation method thereof. The gas engine lubricating oil composition of the present invention comprises: (A) an alkyl phosphate compound; (B) alkylated diphenylamine; (C) a polyisobutylene succinic acid pentaerythritol ester dispersing agent; (D) a salicylate and / or sulfonate; (E) zinc dialkyl dithiophosphate; (F) an oil-soluble organic molybdenum friction modifier; (G) a metal corrosion inhibitor; (H) a pour point depressant; (I) a major amount of a lubricating base oil. The gas engine lubricating oil composition disclosed by the invention has excellent high-temperature oxidation resistance, cleaning performance, extreme pressure anti-wear performance and anti-corrosion performance.

The invention provides a pour point depressant as well as a preparation method and application thereof. The pour point depressant comprises a polymer with a structure as shown in a formula I. The preparation method of the pour point depressant comprises the following steps: (1) mixing alpha-olefin, maleic anhydride, an initiator and a solvent, and polymerizing to obtain a reaction system containing an intermediate product; and (2) adding long-chain fatty alcohol and / or long-chain fatty amine, monohydroxyl-terminated silicone oil and a catalyst into the reaction system obtained in the step (1), and reacting to obtain the pour point depressant. According to the present invention, the structure of the polymer represented by the formula I is designed to obtain the polymer represented by the formula I with excellent performance, and the pour point depressant prepared from the polymer represented by the formula I has a low condensation point.

The invention discloses a battery separator filling conditioner and a preparation method thereof. The main components of the battery separator filling conditioner include a base oil composition, a pour point depressant, and an antioxidant. The base oil composition includes a paraffin-based neutral oil and a cycloalkyl neutral oil. The components of the battery separator filling conditioner are calculated by weight as follows: 98-100 parts of the base oil composition, 0.5-1.0 parts of polymethacrylate (PMA), and 1-2 parts of the antioxidant. The components of the base oil composition are calculated by weight as follows: 80-90 parts of the paraffin-based neutral oil and 10-20 parts of the cycloalkyl neutral oil, and the total number of the paraffin-based neutral oil and the cycloalkyl neutral oil is 98-100 parts. The filling conditioner prepared by the invention has a light appearance color, moderate viscosity, a low pour point, a high flash point, low volatilization loss, and an extremely low sulfur content. It also has good antioxidant performance and suitable solubility, and has good material compatibility.

The application belongs to the technical field of lubricating oil, and specifically provides a gas engine lubricating oil and a preparation method thereof.The gas engine lubricating oil comprises the following raw materials: ester base oil, anti-wear agent, dispersant, pour point depressant and antifoaming agent, wherein the ester base oil is prepared by esterification reaction of polyhydric alcohol and fatty acid; the preparation method of the anti-wear agent comprises the following steps: first, reacting acrylic acid with vinyl imidazole to prepare a modifier; then, polymeric phenol is obtained by polymerization of phenol under the action of a catalyst; finally, the polymeric phenol, boric acid and vegetable oil are reacted, the modifier is added after a certain time of reaction, and the reaction is continued to obtain the anti-wear agent.The preparation method of the gas engine lubricating oil of the application is that the raw material components are uniformly mixed according to the formula, and the gas engine lubricating oil of the application has good wear resistance, oxidation resistance, high-temperature detergency and thermal stability.

The invention belongs to the technical field of lubricating oil, and particularly relates to environment-friendly biodegradable lubricating oil for a hydraulic retarder and a preparation method of the environment-friendly biodegradable lubricating oil. The environment-friendly biodegradable lubricating oil for the hydraulic retarder is prepared from the following components in parts by mass: 80 to 90 parts of base oil, 1 to 3 parts of a cleaning agent, 1 to 3 parts of a dispersing agent, 1 to 2 parts of a viscosity index improver, 0.5 to 2 parts of an anti-wear agent, 0.3 to 1.5 parts of an antioxidant, 0.1 to 0.5 part of an anti-foaming agent and 0.1 to 0.3 part of a pour point depressant, the antioxidant comprises hindered phenolic ester, aromatic amine and zinc thiophosphate in a mass ratio of (3-6): (2-5): 1. The environment-friendly biodegradable lubricating oil for the hydraulic retarder, provided by the invention, is biodegradable, and has excellent high-temperature resistance, oxidation resistance and low-temperature resistance and longer oil change period.

The invention belongs to the technical field of petrochemical engineering, and particularly relates to a method for producing transformer oil and bright stock from non-naphthenic oil. The method for producing transformer oil and bright stock from non-naphthenic oil comprises the following steps: raw oil firstly enters a first hydrogenation unit for hydrofining and hydrocracking reaction, then enters a second hydrogenation unit, and sequentially passes through an isomerization pour point depressing reactor, an isomerization cracking reactor and a finishing reactor to obtain secondary hydrogenated oil; and finally fractionating to obtain the transformer oil and bright stock. According to the method for producing the transformer oil and the bright stock from the non-naphthenic oil, the low-value non-naphthenic oil is taken as a raw material, and high-selectivity isodewaxing and cracking of the hydrocracking tail oil are realized by virtue of two hydrogenation units, so that the pour point lt can be obtained; and meanwhile, the high-quality bright stock is produced, and the economic benefit of the product is high.

This invention belongs to the field of petroleum processing technology, and specifically relates to a production apparatus and method for low-pour-point base oil for aviation hydraulic oil. The production apparatus and method for low-pour-point base oil for aviation hydraulic oil includes the following steps: Hydrorefining of the oil, where the feedstock oil undergoes hydrodesulfurization and dearomatization in a two-stage series process to produce hydrorefined oil with <1% aromatics and <1 mg / kg sulfur content; Fine fractionation of the oil, specifically: the hydrorefined oil is finely fractionated in a fractionation tower to obtain hydrorefined distillate oil at 230℃~280℃; Molecular sieve dewaxing, specifically: the 230℃~280℃ hydrorefined distillate oil is subjected to deep removal of n-alkanes using a 5A molecular sieve, lowering the oil's pour point to below -75℃, producing low-pour-point, low-aromatic aviation hydraulic oil base oil. This invention uses a combined process of "low-pressure hydrorefining-molecular sieve dewaxing" to produce a low-sulfur, low-aromatic, low-pour-point base oil with less than 1% aromatics. The production method has the advantages of low investment and ease of implementation.

The invention relates to the technical field of lubricants, and discloses a high-performance low-temperature lubricant and a preparation method thereof.The high-performance low-temperature lubricant is prepared from, by weight, 75-85 parts of base oil, 8-12 parts of a composite surfactant, 4-7 parts of an extreme pressure lubricant, 1-3 parts of an antioxidant and 0.5-2.5 parts of a fluoborate wear-resistant pour point depressant; wherein the fluoborate wear-resistant pour point depressant contains long-chain alkyl in the shape of a pour point depressant, after the fluoborate wear-resistant pour point depressant is added into the base oil, the side-chain alkyl of the fluoborate wear-resistant pour point depressant is co-crystallized with wax, and a polar main chain is left outside a crystal to play a shielding role, so that the flow resistance of the lubricant is reduced, and a pour point depressing role is played; under the friction condition, the fluoborate in the structure can chemically react with metal elements in mechanical equipment to generate fluoride and boron-containing compounds with high hardness and wear resistance, so that the friction coefficient is reduced, and meanwhile, the quaternary ammonium salt has excellent corrosion resistance; the lubricant prepared by the invention can meet the normal operation requirement of equipment in a low-temperature environment.

This invention provides a method for preparing a wax-inhibiting pour point depressant and the wax-inhibiting pour point depressant itself, relating to the field of petroleum extraction technology. The method for preparing the wax-inhibiting pour point depressant provided by this invention includes the following steps: dissolving long-chain α-olefins, long-chain acrylates, and maleic anhydride separately in an organic solvent, and adding a polymerization initiator to the organic solvent to carry out a polymerization reaction, forming a target polymer after the reaction; mixing the target polymer with a sodium hydroxide solution to carry out a hydrolysis reaction, obtaining the wax-inhibiting pour point depressant after the reaction. This invention provides a method for preparing a wax-inhibiting pour point depressant and the wax-inhibiting pour point depressant itself. The wax-inhibiting pour point depressant prepared by this method can improve crude oil production efficiency and reduce production costs.

Disclosed in the present invention are a hydrocarbon composition, and a preparation method therefor and the use thereof. The hydrocarbon composition contains a bicyclic aromatic hydrocarbon and an aromatic hydrocarbon with three or more rings, wherein based on the total weight of the hydrocarbon composition, the total content of the aromatic hydrocarbons is greater than or equal to 90 wt%, the content of the bicyclic aromatic hydrocarbon is 60-100 wt%, and the content of the aromatic hydrocarbon with three or more rings is 0-40 wt%; the aromatic hydrocarbons have 35-80 carbon atoms; and the mass ratio NP / IP of n-alkane carbon to iso-alkane carbon is 4.0-6.8. The preparation method for the hydrocarbon composition comprises: (1) reacting an aromatic hydrocarbon oil with an olefin oil in the presence of a catalyst, and subjecting the resulting reaction product to sedimentation separation, so as to obtain an oil phase and a catalyst phase; and (2) washing the oil phase, distilling and cutting the washed oil phase, and refining the resulting vacuum residue fraction, so as to obtain the hydrocarbon composition The hydrocarbon composition of the present invention has a high viscosity, a high viscosity index, a low pour point and a good oxidation stability, and is suitable for being used as a high-quality high-viscosity special oil.

The invention provides a synthetic lubricating oil composition and application thereof, and belongs to the technical field of lubricating oil. The synthetic lubricating oil composition comprises base oil, a pour point depressant and a composite additive, the base oil comprises synthetic ester base oil; the synthetic ester base oil consists of low-viscosity synthetic ester and high-viscosity synthetic ester. The composition has ultrahigh viscosity index and low-temperature performance, is diesel engine lubricating oil with very excellent low-temperature performance, passes a graphite flake friction characteristic test and a THOT oxidation test required by TES 439 specifications, and can meet the lubrication requirements of an engine and a transmission system.

The invention relates to the technical field of liquid cooling, in particular to an insulating coolant and an immersed coolant, and provides the insulating coolant and a preparation method thereof, the insulating coolant has environmental protection property and high performance, and the performance bottleneck of the prior art is broken through by adopting a brand new technical process and route: the combination of a low pour point and a high flash point is realized to adapt to an extreme temperature scene; the heat dissipation efficiency and the equipment safety are improved by optimizing the heat conductivity and the insulativity, and finally the core problems of environmental pollution, poor low-temperature fluidity, flammability and explosion, insufficient chemical stability and the like of the traditional cooling liquid are solved. A fluorine-containing group is introduced into a [(CF3) 2SiO] structural unit molecule, so that the chemical structure and physicochemical properties of liquid are changed, for example, the surface energy is reduced, the hydrophobicity is improved, the chemical corrosion resistance is enhanced and the like, and the requirement of the liquid as an insulating coolant can be met.

The utility model relates to the related technical field of biomass diesel oil production, in particular to a pour point depressing device for biomass diesel oil production, which comprises a biomass diesel oil condensing tower, an air inlet chamber, a liquid discharge chamber and a heat exchange tube, a lower partition plate and an upper partition plate are arranged in an inner cavity of the biomass diesel oil condensing tower and divide the inner cavity of the biomass diesel oil condensing tower into a lower cavity, a middle cavity and an upper cavity, and a cooling liquid inlet and a cooling liquid outlet are formed in the side wall of the lower cavity and the side wall of the upper cavity respectively. Mounting holes are formed in the lower partition plate and the upper partition plate; the pour point depressing device for biomass diesel oil production is formed by combining the biomass diesel oil condensing tower, the gas inlet chamber, the liquid discharging chamber and the heat exchange pipes, and the multiple heat exchange pipes are evenly arranged, so that the effective heat exchange area of the device is effectively increased, and the purpose of improving the heat exchange efficiency is achieved.

The application belongs to the technical field of shock absorber oil, and particularly relates to a silicon-based shock absorber oil for racing cars and a preparation method thereof. The silicon-based shock absorber oil for racing cars comprises, by mass percentage, 50-60 parts of silicone oil, 40-50 parts of base oil, 3-6 parts of a viscosity index improver, 0.2-0.5 parts of an extreme pressure anti-wear agent, 0.2-0.5 parts of a pour point depressant, and 0.2-0.5 parts of an antioxidant. The extreme pressure anti-wear agent comprises thiazolyl disulfide dimers and poly-methyl acrylate modified nanoscale spherical boron nitride. The silicon-based shock absorber oil for racing cars has excellent viscosity-temperature performance, shear stability, heat resistance, wear resistance, corrosion resistance and high-temperature foam resistance.

A method for preparing an environmental-friendly rubber oil, including: conducting extraction in an extraction tower, where a primary extraction solvent is introduced into an upper section of the extraction tower, a raw oil is introduced into a middle-lower section of the extraction tower, and a secondary extraction solvent is introduced into a lower section of the extraction tower; subjecting a material at a bottom of the extraction tower to solvent recovery to obtain a secondary extract oil; mixing a substance flowing out from a top of the extraction tower, a solubilizer and a part of the primary extraction solvent, cooling to −15° C. to 10° C., and filtering to obtain a wax paste and a filtrate; subjecting the wax paste to heating evaporation and solvent recovery to obtain a wax; and subjecting the filtrate to heating evaporation and solvent recovery, obtaining the environmental-friendly rubber oil.