12-Hydroxystearic acid → HCID 131718069, compound

Participants

Reaction Conditions

Reaction Steps

A grease kettle equipped with stirring, heating and an external recirculation system, capable of pumping the contents from the bottom of the kettle to the top, was charged with 4428.6 grams of high viscosity index (HVI) mineral oil of viscosity 110 mm2 /s (cSt) at 40° C., 50.0 grams of lithium hydroxide monohydrate and 21.4 grams of hydrated lime. The mixture was stirred and heated to 100° C. while the heating rate was maintained to control foaming. After foaming stopped, recirculation was started and the mixture was stirred and heated at 140° C. Over a 10 to 15 minute period, 500 grams of 12-hydroxystearic acid was added slowly to control foaming. After the neutralization step was complete, the charge was heated to 150° C. with stirring and recirculation. The charge was held at this temperature for approximately one hour until the product began to thicken. The heat was then shut off and the charge allowed to cool to below 100° C. while stirring and recirculation were maintained. A portion of the resulting grease. having a soap thickener content of about 1O% w, was then passed through a Mantin Gaulin homogenizer at a pressure of 41000 kPa. The resulting smooth grease was designated Grease I-A.

Provenance & Evidence