一种方法可包括:将包含真空瓦斯油的流引入液-液萃取单元; 使减压瓦斯油与二氢左旋葡萄糖烯酮溶剂接触,以从减压瓦斯油中萃取一部分芳香族化合物,从而产生具有降低的芳香族化合物浓度的萃余物流; 并对萃余液流进行脱蜡以形成基础油。
润滑剂组合物可用于内燃机的润滑。 使用此类润滑剂组合物的方法可包括:使用润滑剂组合物润滑内燃机,所述润滑剂组合物包含: 基于润滑剂组合物的总质量计约30.0质量%至约99.8质量%的油基础油、油 包含至少一种多元醇酯的基础油料; 基于润滑剂组合物的总质量,1.0质量%至30.0质量%的聚异丁烯; 并在内燃机中燃烧燃料。
齿轮油组合物包括第一油基础油料和第二基础油料。 第一基础油包括具有250mm的运动粘度(ASTM D445,40℃)的II类光亮油 2 /s 至 600 毫米 2 /s,运动粘度(ASTM D445,100℃)为20mm 2 /s 至 70 毫米 2 /s,80至120的粘度指数(ASTM D2270),以及-50℃至-20℃的倾点(ASTM D97)。第二基础油料包括具有运动学特性的聚α烯烃(PAO)基础油料 粘度(ASTM D445,40°C)为 500 mm 以上 2 /s 至 3500 毫米 2 /s,运动粘度(ASTM D445,100℃)为 60 mm 2 /s 至 300 毫米 2 /s,粘度指数(ASTM D2270)为150至250,倾点(ASTM D97)为-50℃至-20℃。
The present disclosure generally relates to alkylated aromatic compounds useful as basestocks and additives for high viscosity applications. In an embodiment is provided an alkylated aromatic compound. In another embodiment is provided a lubricant formulation that includes an alkylated aromatic compound. In another embodiment is provided a lubricant formulation that includes an alkylated aromatic compound, an additive, and optionally, a Group III basestock, Group IV basestock, Group V basestock, or a combination thereof, the Group V basestock being different than the alkylated aromatic compound. In another embodiment is provided a method of forming a lubricant formulation that includes introducing a mPAO, an aromatic compound, and an acid catalyst to a reactor under reactor conditions to form an alkylated aromatic compound; and introducing the alkylated aromatic compound to an additive to form a lubricant formulation.
Dihydroxyaryl-hydroxyaliphatic borates have been found to be effective antioxidant additives when incorporated into various lubricating media.
Sulfurized phenols, e.g., phenol sulfides, disulfides or polysulfides, oligomers thereof or mixtures of same when treated with alkyl vinyl ethers provide excellent metal anti-corrosivity characteristics without significant reduction of antioxidant, antiwear or other desired properties when incorporated into organic media such as lubricants.
Ethylene terpolymers with a low number average molecular weight of from 1500 to 5500 and a vinyl acetate content of from 10 to 20% by weight, useful in wax modifiers or petroleum fraction additives, are prepared by high pressure polymerization (at least 500 bar and 150°C) in presence of 10 to 25% by weight of an iso olefin such as isobutylene. Incorporation of the iso olefin gives terpolymer products containing from 3 to 13% weight of iso olefin.
A synthetic lubricating composition is provided comprising a major proportion of a base oil and a minor proportion of a plurality of additives, added for the purpose of substantially improving properties of such composition other than viscosity index. The base oil comprises (1) a mixture of at least two fatty acid esters of specified characteristics with regard to viscosity and (2) a hydrogenated oligomer of an alpha olefin of 6 to 12 carbon atoms. The resulting blend of base oil and additives has a viscosity index which differs from that of the base oil by no more than 20.
