Lubricant Flash Point Optimization for Heavy Equipment

Compositions comprising saturated or unsaturated isoparaffinic hydrocarbons with 12-24 carbon atoms and polyalkyl (meth)acrylates, useful as hydraulic fluids with high flash points and low-temperature flow properties. The hydrocarbons are preferably isoparaffins with 16-24 carbon atoms, and the polyalkyl (meth)acrylates are prepared in the hydrocarbons. The compositions are particularly suitable for arctic hydraulic fluids, shock absorber fluids, power steering fluids, and central hydraulic fluids.

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Nigeria blending plants were few and mostly dominated by the multinationals. Lubricants produced in the past were of high quality but expensive. With time the lubricant market boomed and more investors entered the operations leading to quality challenges and adulterated products began to litter the market with some manufacturers addresses becoming elusive. In the present work some physical and chemical properties of selected multi- and mono-grade lubricants manufactured in Nigeria have been investigated. The values of viscosity in this investigation were found to decrease gradually with temperature for both multigrade and monograde lubricants. For most lubricants a high flash point is desirable to prevent ignition in a motor. Mobil super (20W50), Conoil (20W50) and Total (SAE40) were found to have high flash points, while Oando SMOR (SAE40), Texaco Havoline (20W50) and AP Super V (20W50) have low flash points. The general specification for density of petroleum lubricants is 0.85-0.95. This investigation has confirmed that Nigerian manufactured lubricants are of good quality with den... Read More

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Use of re-refined base oils in industrial lubricant formulations to improve oxidation stability and low-temperature performance. The re-refined base oils, derived from recycled used lubricants, are used in combination with conventional additives to create lubricants for industrial applications such as hydraulic, gear, and compressor oils. The re-refined base oils exhibit improved properties compared to virgin base oils, including higher viscosity index, lower viscosity at low temperatures, and enhanced oxidation stability.

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The ability of lubricants to prevent surface damage and wear is critical in various industrial applications.This study presents an evaluation of the anti-wear performance of some industrial lubricating oils (A, B, and C) with working conditions according to ASTM standards.The results show that oil A has better anti-wear performance than oil B and C under the same working conditions.Oil A also showed stable characteristics during the testing process, with minimal weight differences and scratch widths of the test ball before and after the experiment.In addition, other specifications such as viscosity, viscosity index, pour point, and flash point do not significantly affect the wear resistance of the lubricating oil under these operating conditions.This research highlighted the importance of selecting the right lubricant to minimize wear surface damage, contributing to the performance and longevity of machine components.

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Lubricating oil composition, lubricating method, and transmission for improving fuel efficiency, wear resistance, low temperature fluidity, and usability of lubricating oils used in transmissions, while reducing traction coefficient. The composition contains a base oil, a friction modifier ester, and an antiwear ester. The base oil has a low viscosity index and low kinematic viscosity at 40°C, but high kinematic viscosity at 100°C. The friction modifier ester improves wear resistance and reduces traction coefficient. The antiwear ester has a high flash point for safety. The composition has good low temperature fluidity and wear resistance while meeting fuel economy and safety requirements.

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Lubricant composition for driveline and industrial gears containing a hydrocarbon base stock and a combination of esters, including a carboxylic acid mono-ester and a dicarboxylic acid di-ester, to improve traction coefficient and reduce energy losses at low temperatures. The composition enables the use of lower-cost Group II and III base oils while achieving comparable performance to high-end Group IV oils.

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The degradation of the environment showed interest in searching for an alternative possibilities of the conventional lubricants. Michelia Champaca oil was suitable in this direction due to its high viscosity and flash point. The oil was chemically modified before its usage as bio based lubricant. The different load was applied on the machine. The load was varied from 20 N to 50 N with a successive gap of 10 N. The sliding speed was considered 300 rpm and 3000 m sliding distance was taken during the analysis. The less friction was obtained at lower loads and it increases with respect to loads. The Michelia Champaca Showed less friction and wear at all the loads and also it showed less worn surface for all the conditions applied.

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A mineral base oil with improved volatility and high viscosity index, suitable for lubricant applications, is produced by a process that includes vacuum distillation of an unconverted oil to separate a distillate with a narrow boiling point range, followed by catalytic dewaxing of the distillate to produce a base oil with a high paraffinic content and low naphthenic content. The base oil has a Noack volatility of 10-12 wt% and a viscosity index of 132-142.

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As the petroleum fraction?s demand increasing day by day in case of lubricating the parts of machinery. This also increase the problem of disposal of waste lubricant that may contaminate the soil and water environment and the depletion of petroleum reserve also brought the interest of researchers toward developing the lubricants that should be environmental friendly and also obtained from the source that should be in bulk quantity and easily obtainable. In this regards, vegetable oil is selected to be used as lubricant because it has some competent properties like higher flash point, fire point, viscosity index and the Tribological properties are better than the mineral oil based lubricant. Like Tribological properties of soybean oil with the different proportion of ZDDP is investigated and compared with mineral oil, results show that less wear and tear is observed. Similarly, the physical properties of jatropha oil was compared with the engine oil and hydraulic oil. The results show that the jatropha oil has less coefficient of friction and wear scar diameter than the engine oil and... Read More

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A lubricating oil composition that exhibits increasing flash point while maintaining or decreasing viscosity, comprising a mixed ester base system comprising at least one partially esterified ester and at least one fully esterified ester, wherein the composition has a flash point from 125°C to 225°C and a kinematic viscosity from 1 to 5 at 100°C.

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A process for producing a haze-free heavy base oil from deasphalted oil (DAO) feed, comprising hydrotreating the DAO to remove impurities, hydrocracking the hydrotreated product to break down wax precursors, catalytic dewaxing the hydrocracked product to remove wax compounds, and hydrofinishing the dewaxed product to remove remaining impurities. The resulting base oil has improved low-temperature properties, including a pour point below -12°C and a cloud point below -18°C, while maintaining a haze-free appearance at 0°C for at least 5 hours.

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Lubricating oil composition for turbomachinery, compressors, hydraulic equipment, and machine tools that has improved oxidative stability, sludge precipitation suppression, and water separability properties compared to conventional oils. The composition contains a mixture of mineral oil, polyalkylene glycol (PAG), and polyol ester (POE) base oils. The mineral oil provides water separability, PAG dissolves sludge-forming compounds, and POE improves compatibility. The composition also contains antioxidants and phosphorus esters to enhance stability and wear resistance.

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