Catalogue

Base Oil

solvents

Base oil is a key component of lubricants, including motor oils, industrial oils, and greases. It serves as the foundation for formulating lubricants and is typically combined with additives to enhance performance properties such as viscosity, anti-wear, anti-corrosion, and oxidation resistance.

Types of Base Oils

  • Group I (Mineral Oils – Solvent Refined): Derived from crude oil through refining methods like solvent extraction and hydrocracking.
  • Group II (Mineral Oils – Hydroprocessed): Refined using a process called hydrocracking, which improves the quality by removing sulfur, aromatics, and other impurities.
  • Group III (Synthetic Oils – Hydroisomerized): Made from petroleum but highly refined and processed to improve the molecular structure, often by hydroisomerization (a process that rearranges molecules to increase stability).
  • Group IV (Fully Synthetic Oils – Polyalphaolefins, PAO): Synthetic oils that are chemically manufactured from small molecules, usually through polymerization of ethylene.
  • Group V (Other Synthetic Oils): This group includes all oils that do not fit into the other categories but still provide synthetic performance. Examples include esters, phosphate esters, and some polyalkylene glycols (PAGs).

Applications of Base Oils

  • Motor Oils: Base oils are blended with additives to make engine oils for gasoline and diesel engines. The type of base oil used in the formulation will influence the oil's performance, including its ability to protect the engine from wear, prevent sludge buildup, and operate at high temperatures.
  • Industrial Lubricants : Base oils are used in the formulation of lubricants for machinery, such as hydraulic oils, gear oils, and compressor oils. The right base oil helps to ensure smooth operation and minimizes wear.
  • Greases : Greases are made by adding a thickening agent to base oils. These are used in bearings, gears, and other components where a thicker lubricant is required.
  • Transmission Fluids : Automatic transmission fluids (ATF) use base oils, often with additives, to reduce friction and wear in the transmission, ensuring smooth shifting and operation.
  • Hydraulic Fluids : These fluids often use high-quality base oils to ensure effective power transmission and reduce the risk of fluid degradation under high pressure and temperature.
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