Lithium Hydroxide → Lithium hydroxyoctadecanoate

Participants

Reaction Conditions

Reaction Steps

A lithium hydroxystearate grease thickener ws prepared by saponification of a mixture containing 12-hydroxystearic acid (8%) and glyceride thereof (9%) with lithium hydroxide in a mineral oil vehicle at about 174° C. in a closed contactor. After depressuring and dehydration of the thickener in an open kettle sufficient mineral oil was added to reduce the thickener content to about 9.0%. After cooling to about 74° C. a typical grease additive package, consisting of an amine antioxidant, phenolic antioxidant, metallic dithiophosphate, sulfur-containing metal deactivator and nitrogen containing antirust additives, was added.

Provenance & Evidence