Method of Preparing a Lubricating Composition

摘要

Lubricating compositions prepared by mixing hydrocarbon lubricating oil with an alkaline earth metal salt, e.g., calcium sulphonate, are prepared more easily by emulsifying the mixture with an aqueous solution of calcium acetate, progressively boiling off the water, and then rapidly cooling the resulting gel, e.g., by dilution with hydrocarbon lubricating oil. In an example, an aqueous solution of calcium acetate was prepared in the usual way by neutralizing CaO slurry in water with acetic acid and stirring at 55-60 degrees centigrade, and bringing to pH 9.2-9.6 through addition of further calcium oxide. The gel can also be used undiluted e.g., as a lubricant for very hot bearings and rollers. (Author)