264 results about "Viscosity index" patented technology

The embodiment of the invention provides a building solid waste recycled aggregate production line control method and system, and relates to the technical field of building solid waste recycling, the method comprises the following steps: obtaining a first operation parameter of crushing equipment, and identifying a first characteristic of the crushing equipment influenced by a viscous material according to the first operation parameter; acquiring a second operation parameter of the screening equipment, and identifying a second feature of the screening equipment influenced by the viscous material according to the second operation parameter; acquiring a conveying state of the conveying equipment, and identifying a third feature of the conveying equipment influenced by the viscous material according to the conveying state; performing correlation analysis on the first feature, the second feature and the third feature to obtain a viscous state judgment result of the viscous material; generating a material viscosity index according to the viscosity state judgment result; and according to the material viscosity index, the operation parameters of the crushing equipment, the screening equipment and the conveying equipment are adjusted. The production efficiency and the product quality of the recycled aggregate can be improved, and equipment abrasion and energy consumption are reduced.

The invention discloses a preparation method of high-temperature transformer oil, and belongs to the technical field of high-temperature transformer oil. Comprising the following steps: 1, carrying out hydrolysis reaction to obtain ricinoleic acid; step 2, carrying out first esterification reaction to obtain a ricinoleic acid esterification product; 3, performing epoxidation reaction to obtain an epoxidized ricinoleic acid esterification product; 4, carrying out ring-opening reaction to obtain ring-opened castor oil; 5, carrying out a second esterification reaction to obtain modified castor oil base oil; and 6, mixing the modified castor oil base oil, a viscosity index improver, an antioxidant, a demulsifying agent and an extreme pressure agent to obtain the high-temperature transformer oil. The invention provides modified castor oil and a preparation method thereof. The high-temperature antioxidant transformer oil prepared by using the modified castor oil as base oil has the characteristics of environmental protection, degradability, high flash point, high breakdown voltage and the like, and also has excellent oxidation stability.

The invention discloses driving oil for new energy hybrid power automobile power and a preparation method thereof, and particularly relates to the technical field of driving oil, the driving oil comprises 70-85% of base oil, 0.8-2.5% of a conductive inhibitor, 1-3% of a nanometer heat conduction agent, 4-8% of a viscosity index improver, 0.1-0.5% of an ion trapping agent, 3-5% of an anti-wear reagent at extreme pressure, 0.5-1.5% of an antioxidant and 0.001-0.01% of an anti-foaming agent. The preparation method comprises the following steps: S1, base oil pretreatment, S2, nano heat conduction agent in-situ modification, and S3, gradient temperature control compounding. Through compounding of the base oil in a specific proportion and the synergistic effect of multiple additives, the problems of insufficient insulativity, easy oxidation, poor viscosity stability, low heat conduction efficiency, poor material compatibility and the like of traditional oil in a hybrid power system are solved, effective protection of a motor and an electric control system is realized, the heat management efficiency is improved, and the service life of the hybrid power system is prolonged. And the service life of oil is prolonged, the maintenance cost is reduced, and the special requirements of power and driving systems of hybrid vehicles are met.

The application discloses a method and device for producing bright stock, and the obtained bright stock, which comprises the following steps: (1) contacting heavy oil with a hydrogenation catalyst under the presence of hydrogen, and performing hydrogenation reaction under hydrogenation treatment conditions to obtain a hydrogenation product; (2) performing alkylation reaction of aromatics in the hydrogenation product and C10-C20 olefins in olefin oil under the presence of a strong acid catalyst and under alkylation reaction conditions to obtain an alkylation product; and (3) performing distillation separation on the alkylation product to separate and obtain a heavy fraction with a temperature greater than 500 DEG C as the bright stock product. The method provided by the application expands the raw material source of the bright stock, simplifies the process flow, and is convenient for industrial production; and the prepared bright stock product not only has high viscosity and viscosity index, but also has good low-temperature flow performance and high oxidation stability.

The present invention provides a method for lubricating a combustion engine that is suitable for improving at least one of the following: deposits, sludge, oxidation, and wear. [Solution] A method for lubricating a combustion engine comprises lubricating the combustion engine with a lubricating oil composition, wherein the lubricating oil composition comprises a base oil having a lubricating viscosity having more than about 90 weight percent saturated material, less than about 0.03 weight percent sulfur, and more than about 50 weight percent hydrogenated mineral oil having a viscosity index of less than or equal to about 120; a detergent system having less than about 5 weight percent metal from a non-sulfonate detergent and (ii) a total base number (TBN) of a specific value, giving about 60 to about 85 percent of the total lubricating oil composition TBN; an anti-wear system comprising one or more zinc dihydrocarbyl dithiophosphate compounds; and an antioxidant system comprising one or more phenolic antioxidant compounds, one or more amine antioxidant compounds, or a combination thereof.

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 provides a bifunctional ionic liquid monomer, an ionic multifunctional viscosity index improver as well as a preparation method and application of the ionic multifunctional viscosity index improver, and belongs to the technical field of lubricating additives. A series of bifunctional ionic liquid monomers are synthesized through molecular design and have the functions of antifriction, wear resistance and cross-linking agents, then the monomers are copolymerized with long-chain alkyl methacrylate, and the ionic multifunctional viscosity index improver is prepared. The molecular structure of the viscosity index agent simultaneously contains an oleophylic alkyl chain, a rigid benzene ring structure and an ionic functional group, so that the solubility, the viscosity increasing performance and the viscosity-temperature performance of the viscosity index agent in base oil are remarkably improved; a biquaternary ammonium salt structure is introduced into a main chain to realize crosslinking of the polyion liquid, so that the tackifying performance of the polyion liquid is improved, phosphorus, sulfur and nitrogen heteroatoms are introduced, physical and chemical adsorption films can be formed on the metal surface, the friction coefficient and the abrasion volume are effectively reduced in the friction process, and the boundary lubricating performance is enhanced.

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 discloses an aero-engine lubricating oil composition and a preparation method thereof, and relates to the field of lubricating oil. The composition comprises a composite base oil system, an antioxidant, an anti-wear reagent at extreme pressure, a corrosion inhibitor, an anti-foaming agent and an optional viscosity index improver, the composite base oil system is composed of high-purity pentaerythritol ester, poly-alpha-olefin and dipentaerythritol ester, wherein the high-purity pentaerythritol ester is synthesized by two-step esterification of pentaerythritol, binary fatty acid and monobasic fatty acid; according to the preparation method, a staged fine blending process is adopted, and vacuum dehydration and degassing, nitrogen protection and multi-stage filtration are combined. Through base oil structure innovation, additive purity control, function cooperation and process optimization, the high-temperature oxidation stability, extreme pressure wear resistance, corrosion resistance and rubber compatibility of the lubricating oil are remarkably improved.

The invention belongs to the field of special oil for aircraft hydraulic systems, and particularly relates to an aviation hydraulic oil composition as well as a preparation method and application thereof. The aviation hydraulic oil composition comprises the following raw materials in percentage by mass: 15%-20% of a viscosity index improver, 0.01%-1% of an antioxidant, 0.01%-1% of an anti-wear agent, 0.1%-2.0% of an anti-rust agent, 0.01%-0.1% of an anti-foaming agent, 0.01%-0.1% of a coloring agent and the balance of base oil. The aviation hydraulic oil composition disclosed by the invention has excellent low-temperature fluidity, high-temperature stability, anti-rust property and rubber compatibility, particularly has extremely good high-low temperature viscosity stability, and can ensure that an aircraft landing gear and a hydraulic system smoothly operate in an environment with relatively large high-low temperature change amplitude.

The invention relates to the technical field of industrial gear lubricating oil, in particular to an industrial gear oil composition. The composition comprises the following components in percentage by weight: 10%-30% of rerefined base oil, 5%-40% of synthetic ester or bio-ester base oil, 20%-70% of second-class mineral base oil, 1.0%-5.0% of an anti-wear composite additive and 5.0%-10.0% of a viscosity index improver, wherein the synthetic ester or bio-ester base oil is selected from one or more of diisononanoic acid ester, trimethylolpropane ester, pentaerythritol ester or rapeseed oil ester; the anti-wear composite additive comprises 5.0%-9.9% of trialkyl phosphate, 1.0%-4.9% of alkyl borate or alkyl boric acid polyether, 1.0%-4.9% of alkenyl amine and the balance of mineral oil; the viscosity index improver is a star type or comb type polymethacrylate polymer.

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.

The invention discloses a gas engine oil composition as well as a preparation method and an application thereof. The gas engine oil composition comprises the following components in percentage by weight: 70.7-72.5% of III-type base oil, 0.1-0.5% of an antioxidant, 0.1-0.5% of a lubricant and 0.1-0.5% of a lubricant. 11.5 to 11.8% of a composite additive; 13 to 13.5 percent of a viscosity index improver; 2-3% of a base number improver; 0.5-1% of a base number retention agent; and 0.2-0.3% of a pour point depressant. According to the invention, the ash-free base number increasing agent and the base number keeping agent are added and have a synergistic effect, so that the base number of the gas engine oil is effectively increased, the problem that the base number is quickly reduced is solved, and abnormal phenomena such as engine hardware abrasion and corrosion caused by too quick base number attenuation in the use process are avoided; the low-ash-content high-base-number oil-change additive has the characteristics of low ash content, high base number and slow base number attenuation, can meet the requirement of 120 thousand kilometer long oil change mileage, effectively prolongs the oil change period of oil products, and reduces the use cost of the oil products.

A low-viscosity lubricating oil composition with improved durability and NVH (noise, vibration, and harshness) performance is provided. The durability and NVH performance of the low-viscosity lubricating oil can be further enhanced by a suitable combination of mineral and / or synthetic oil and a viscosity index improver.

The invention relates to lubricating oil for an electric drive axle of a commercial vehicle and a preparation method thereof, and belongs to the technical field of lubricating oil. The lubricating oil for the electric drive bridge comprises the following components in parts by weight: 85-95 parts of base oil, 2-10 parts of a composite additive, 2-8 parts of a viscosity index improver and 0.1-0.5 part of an electric drive oil reinforcing agent, the base oil is a combination of coal-to-liquid and poly-alpha-olefin; the total amount of the components is 100 parts. The invention also provides a preparation method of the lubricating oil for driving the axle. By optimizing a lubricating formula, the problems of high rotating speed, high load, large torque and multi-working-condition operation of an electric drive axle are solved in a targeted manner, and compared with traditional GL-5 gear oil, transmission efficiency can be remarkably improved, the service life of parts can be prolonged, electrical safety can be guaranteed, and the lubricating oil is a key guarantee for reliable operation of an electric drive axle system.

The invention belongs to the technical field of lubricating oil, and particularly relates to a lubricating oil composition with a long oil change period as well as a preparation method and application thereof. The lubricating oil composition disclosed by the invention is prepared from the following components based on the total weight of the lubricating oil composition: 0.8 to 1.8 percent of a metal detergent, 1.5 to 2.5 percent of an ashless dispersant, 0.5 to 1.3 percent of an antioxidant and antiwear agent, 0.1 to 0.8 percent of an auxiliary antioxidant, 5 to 10 percent of a viscosity index improver, 0.2 to 0.5 percent of a pour point depressant, 0.001 to 0.01 percent of an anti-foaming agent and the balance of base oil. The lubricating oil composition disclosed by the invention passes a program IIIE engine bench test in the SJ standard requirement, the performance meets the SJ index requirement, the test time is prolonged by 40% compared with the standard time, and the lubricating oil composition has excellent volatile resistance and less engine oil consumption and meets the requirement of a gasoline engine generator for a long oil change period of 150h in the actual use process.

This invention discloses a method for producing base oil. The raw material is mixed with hydrogen and then fed into a graded hydroisomerization dewaxing reactor. The mixture sequentially passes through a protective agent layer and a catalyst layer for hydroisomerization. The resulting catalytic product undergoes boiling point trimming to obtain base oil with a fraction exceeding 340°C. Along the flow path, the total acid content of the catalyst first increases and then decreases, and the molar percentage of acid in the total acid content also first increases and then decreases. The reaction temperature of the protective agent layer is lower than that of the catalyst layer, and the reaction temperature within the catalyst layer first increases and then remains constant or decreases. This invention, by using a specifically graded hydroisomerization dewaxing reactor and setting different temperature zones, produces base oil with higher yields, lower sulfur and nitrogen content, and effectively reduces the low-temperature performance (pour point and cloud point) of the base oil, resulting in a higher viscosity index and improved base oil quality.

The invention discloses a high-load bearing lubricant for a Morgan rolling mill and a preparation method of the high-load bearing lubricant. The lubricant comprises synthetic base oil, modified titanium-silicon composite particles, slow-release antioxidant microcapsules, an organic molybdenum anti-wear agent, an extreme pressure additive, an environment-friendly ternary antirust agent and a viscosity index improver. Modified nanoparticles are prepared through atomization melting and solvent heat treatment, antioxidant microcapsules are prepared through a polyethylene glycol coating technology, and then the composite lubricating system is formed through high-temperature and high-shear mixing. The lubricant disclosed by the invention has excellent extreme pressure anti-wear performance, thermal oxidation stability, anti-rust and anti-corrosion capability and good oil-water separation performance, and is suitable for a rolling mill bearing lubricating system under severe working conditions of high load, high temperature, high humidity and the like. The lubricant can effectively prolong the service life of the bearing and reduce the operation and maintenance cost of equipment, and has a good industrial application prospect.

The invention belongs to the technical field of lubricating oil, and particularly relates to an energy-saving engine oil composition and application thereof. The engine oil composition is prepared from the following raw material components: base oil, a clearing agent, an ashless dispersant, a phenolic ester type amine antioxidant, an anti-wear agent, a viscosity index improver, a pour point depressant, an ionic liquid additive and an anti-foaming agent, wherein the ionic liquid additive is a quaternary ammonium salt-containing ester anti-wear agent, and the chemical structural formula of the ionic liquid additive is as follows: the composition is prepared by selecting an engine oil complexing agent, a viscosity index improver styrene copolymer, a pour point depressant and ionic liquid from the base oil which is III type base oil, PAO type base oil or a mixture of the III type base oil and the PAO type base oil. The catalyst has the characteristics of low phosphorus, low sulfur and low ash content. The normal lubrication working condition of the engine oil is met, the abrasion resistance of the engine oil is improved, and a good energy-saving effect is achieved.

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.

A viscosity index improver (VII) or viscosity modifier (VM) concentrate comprising: from about 60 parts to about 95 parts of a diluent oil; and from about 5 parts to about 40 parts of star diblock and triblock copolymers having a coupling efficiency greater than about 50%; the concentrate comprises at least 50 wt% of the diluent oil and from about 6.0 wt.% to about 14.0 wt.% of the star and linear diblock and triblock copolymers. The diblock and triblock copolymers possess the ability to thicken in concentrates without gelation or slow flowing material, relatively uniformly across different types or Groups of base stocks / diluents, at high active ingredient concentrations and handling temperatures.

The invention discloses shock absorber oil for a full-active hydraulic suspension system and a preparation method of the shock absorber oil. The shock absorber oil comprises the following components: the balance of poly-alpha-olefin synthetic oil; 10-15% of a viscosity index improver; 0.1 to 0.4% of a nanoparticle lubricant; 0.005 to 0.03% of a friction modifier; 0.5%-1.5% of a dispersing agent; 0.6%-2.0% of a sulfur-phosphorus type extreme pressure anti-wear agent; 0.1 to 0.8 percent of an antioxidant; and 30 to 100 ppm of a defoaming agent. The preparation method comprises the following steps: firstly, adding 10% of poly-alpha-olefin synthetic oil serving as a raw material into a production kettle, stirring and pre-heating; adding a nano-particle lubricant, stirring and dispersing at a high speed, adding a dispersant, carrying out grafting reaction at a constant temperature of 80 DEG C, adding a viscosity index improver, and continuously stirring at a constant temperature of 80 DEG C; and adding the residual poly-alpha-olefin synthetic oil, an antioxidant and other raw materials into the production kettle for reaction to obtain the shock absorber oil. The shock absorber oil has a high viscosity index and good high-temperature lubricating performance.

The invention belongs to the technical field of immersed cooling liquid, and particularly relates to synthetic ester as well as a preparation method and application thereof. The preparation method of the synthetic ester comprises the following steps: S1, heating a reaction mixture containing C9-C10 alcohol and C18 dicarboxylic acid to 160-180 DEG C, and carrying out first-stage reaction to obtain an intermediate product; the structural formula of the C9-C10 alcohol is R1-CH2OH, wherein R1 is a C8-C9 alkane substituted by a C1-C3 alkane group and / or a C1-C3 hydroxyalkyl group; and S2, heating the intermediate product to 190-220 DEG C, and carrying out a second-stage reaction to obtain the synthetic ester. The synthetic ester has low viscosity and high flash point, also shows high viscosity index and high heat conductivity coefficient, and can well improve the fluidity, safety and heat-conducting property of the immersed cooling liquid.

This invention discloses a lubricating oil composition for improving gear friction characteristics and its preparation method. The lubricating oil composition, by weight, comprises the following raw materials: 81-95 parts base oil, 1-4 parts gear oil compounding agent, 1-10 parts viscosity index improver, and 2-5 parts friction-modifying dispersant. This invention introduces a friction-modifying dispersant into gear lubricating oil, solving the problem that conventional friction-modifying dispersants compete with other additives for adsorption on metal surfaces, adversely affecting the oil's friction characteristics. Furthermore, the introduction of this substance can effectively adsorb and disperse deposits such as sludge and varnish in the oil, preventing their aggregation and deposition that cause friction and wear, further improving the oxidation stability and lifespan of vehicle gear oil. The gear lubricating oil composition prepared by this invention has excellent friction characteristics, effectively improving the friction characteristics of transmission fluid and enhancing the friction characteristics and shifting smoothness of automotive transmissions.

This invention relates to the field of lubricating oil technology, and more particularly to an engine oil composition with improved water resistance and its preparation method. The engine oil composition includes a complexing agent, a base oil, a viscosity index improver, and a pour point depressant. The complexing agent is a mixture of detergent, dispersant, zinc dialkyl dithiophosphate, antioxidant, friction improver, emulsifier retainer, and corrosion inhibitor. The emulsifier retainer is a polymethacrylate with an N-vinylpyrrolidone branched structure and / or a styrene-maleic anhydride polymer. The engine oil composition of this invention, by employing a specific complexing agent and mixing it with other functional additives, exhibits excellent formulation balance and compatibility, and can well meet the requirements of automobile manufacturers for the water resistance, fuel economy, and emission performance of hybrid engine oils.

The present application relates to the technical field of petroleum chemical catalyst, in particular to a hydrogenation shape selective cracking catalyst and its application method.The hydrogenation shape selective cracking catalyst comprises a carrier and an active metal component, the carrier comprises SAPO-11 molecular sieve, ZSM-23 molecular sieve and low-sodium small-pore pseudo-boehmite powder, and the active metal component comprises palladium, nickel, lanthanum and cerium;the content of SAPO-11 molecular sieve is 40-50 wt%, the content of ZSM-23 molecular sieve is 7-8.5 wt%, the content of palladium is 0.2-1.5 wt%, the content of nickel is 0.5-5.5 wt%, the content of cerium is 0.6-4%, the content of lanthanum is 2-7%, and the rest is low-sodium small-pore pseudo-boehmite powder, based on the total weight of the catalyst.The present application can produce transformer oil with a pour point less than-50 DEG C and high-quality bright oil products with a viscosity index greater than 110 and being transparent and free of flocculation at 15 DEG C.

The present application relates to the technical field of lubricating oil base oil preparation, in particular to a hydrogenation isomerization-cracking combined catalyst suitable for preparing base oil from Fischer-Tropsch synthesis wax hydrocracking tail oil raw material with a normal alkane content of not more than 30wt%, and application thereof.The catalyst composition is composed of a hydrogenation isomerization-cracking catalyst with specific particle size AEL structure heteroatom aluminum phosphate molecular sieve and specific particle size MTT structure heteroatom aluminum silicate molecular sieve loaded with noble metal.The catalyst composition provided by the present application is applied to the hydrogenation isomerization / cracking process in the hydrogenation isomerization / cracking-supplement refining of Fischer-Tropsch synthesis wax hydrocracking tail oil conversion, which can significantly improve the yield of lubricating oil base oil, and obtain higher yield of low pour point, high viscosity index base oil.

The invention relates to the technical field of petrochemical industry, and discloses a preparation method of bright stock and the bright stock. The preparation method of the bright stock comprises the following steps: (1) in the presence of a catalyst, carrying out a reaction on aromatic oil and olefin oil, and carrying out settling separation on the obtained reaction product to obtain an oil phase and a catalyst phase; and (2) washing the oil phase, carrying out distillation cutting on the washed oil phase, and refining the obtained vacuum residue fraction to obtain the bright stock, recovering the catalyst phase; the distillation range of the aromatic oil is 100-400 DEG C; the aromatic content in the aromatic oil is greater than or equal to 70wt%; the olefin carbon number distribution in the olefin oil is C8-C20; the olefin content in the olefin oil is greater than or equal to 50wt%. According to the method, the bright stock can be continuously produced, the technological process is simplified, the raw material source of the bright stock is expanded, and the obtained bright stock meets the requirements of high viscosity and high viscosity index.

The application discloses a hydroisomerization catalyst and a method for processing Fischer-Tropsch synthesis soft wax into lubricating base oil. The hydroisomerization catalyst is a combined catalyst, comprising catalyst A and catalyst B; wherein the catalyst A is a platinum and / or palladium loaded molecular sieve with a TON structure, and the catalyst B is a platinum and / or palladium loaded molecular sieve with a *MRE structure. The catalyst is used for processing Fischer-Tropsch synthesis soft wax into lubricating base oil. After vacuum distillation of a Fischer-Tropsch synthesis soft wax raw material, a fraction with a distillation temperature greater than 550 DEG C is removed by evaporation, and a fraction with a distillation temperature less than or equal to 550 DEG C is introduced into a hydroisomerization reaction zone. Hydroisomerization and moderate cracking of the soft wax are completed on the hydroisomerization catalyst based on the combined TON structure and *MRE structure molecular sieve shape channel and specific catalytic performance, and a hydroisomerization cracking oil is obtained. The obtained hydroisomerization cracking oil can be processed into low pour point and high viscosity index lubricating base oil by a supplemental refining-fractionation process with a high yield.

The present invention discloses aryl-polyalkylene glycol monoester compound compositions that are suitable for use as a base oil, particularly a base oil for use as an automotive lubricant. The compositions can generally be characterized by having low kinematic viscosity at 100° C. high viscosity index and low Noack volatility. The present invention also discloses lubricant formulations including such aryl-polyalkylene glycol monoester compounds with other materials such as an API Group I-V base oil and / or additives.