Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an external lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes.

Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an internal lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes.

Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an internal lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes.

A lubricating oil composition including a major amount of a base oil, one or more calcium-containing detergents to provide at least 1000 ppmw of calcium, and one or more silicon-containing compound(s) to provide at least 50 ppmw of silicon to the lubricating oil composition, all based on the total weight of the lubricating oil composition, wherein a ratio of ppmw of silicon provided by the one or more silicon-containing compound(s) to the lubricating oil composition to the ppmw of calcium provided by the one or more calcium-containing detergent(s) to the lubricating oil composition is from 0.02 to 1. Methods of using these compositions and silicon-containing detergents are also described.

A lubricating oil composition including a major amount of a base oil, one or more calcium-containing detergents to provide at least 1000 ppmw of calcium, and one or more silicon-containing compound(s) to provide at least 50 ppmw of silicon to the lubricating oil composition, all based on the total weight of the lubricating oil composition, wherein a ratio of ppmw of silicon provided by the one or more silicon-containing compound(s) to the lubricating oil composition to the ppmw of calcium provided by the one or more calcium-containing detergent(s) to the lubricating oil composition is from 0.02 to 1. Methods of using these compositions and silicon-containing detergents are also described.

Disclosed are an ionic liquid, having wear resistance maintained at low temperatures and containing a divalent cation including at least one of bis(ammonium) and bis(phosphonium) and a monovalent anion including at least one of sulfonate and phosphate, and a lubricant composition including the ionic liquid.

Disclosed are an ionic liquid, having wear resistance maintained at low temperatures and containing a divalent cation including at least one of bis(ammonium) and bis(phosphonium) and a monovalent anion including at least one of sulfonate and phosphate, and a lubricant composition including the ionic liquid.

An extremely rheopectic sulfonate-based grease composition and method comprising adding overbased calcium sulfonate, overbased magnesium sulfonate, and a facilitating acid, using a particular type of overbased calcium sulfonate and/or methods for adding overbased calcium sulfonate relative to the magnesium sulfonate and facilitating acid to favor the reaction between the magnesium sulfonate and facilitating acid. A preferred overbased calcium sulfonate comprises benzene rings having multiple alkyl groups. Preferred methods comprise (1) adding all calcium sulfonate after adding the magnesium sulfonate and facilitating acid, (2) adding a first portion of calcium sulfonate with the magnesium sulfonate before adding the facilitating acid and a second portion of calcium sulfonate after the facilitating acid, and/or (3) one or more calcium sulfonate delay periods relative to adding the facilitating acid. The extremely rheopectic grease is fluid and pourable and only takes on a grease structure after milling or shearing.

A lubricant composition for a compression-ignition internal combustion engine includes an amine and a detergent selected from metal sulfonates, phenates, salicylates, carboxylates, thiophosphonates, and combinations thereof. The lubricant composition has a TBN of from about 10 to about 100 mg KOH/g when tested according to ASTM D2896. The amine contributes from about 0.1 to about 28% of the TBN of the lubricant composition. Further, a method of lubricating an internal combustion engine with the lubricant composition includes the steps of injecting a fuel and the lubricant composition into a cylinder to form a mixture, and combusting the mixture via compression-ignition.

A lubricant composition for a compression-ignition internal combustion engine includes an amine and a detergent selected from metal sulfonates, phenates, salicylates, carboxylates, thiophosphonates, and combinations thereof. The lubricant composition has a TBN of from about 10 to about 100 mg KOH/g when tested according to ASTM D2896. The amine contributes from about 0.1 to about 28% of the TBN of the lubricant composition. Further, a method of lubricating an internal combustion engine with the lubricant composition includes the steps of injecting a fuel and the lubricant composition into a cylinder to form a mixture, and combusting the mixture via compression-ignition.