Method of preparing a stable dispersion of an inorganic compound in a lubricating oil

Claim 1

THE PROCESS OF PRODUCING METAL-CONTAINING, HIGHLY BASIC, STABLE DISPERSIONS OF INORGANIC COMPOUNDS IN LUBRICATING OIL COMPOSITIONS WHICH COMPRISES: A. FORMING AN EMULSION BY AGITATION AND HEAT WITHIN A TEMPERATURE RANGE OF 60 TO 150*C., A MIXTURE CONSISTING OF A WEIGHT BASIS ESSENTIALLY OF: (1) 5 TO 25% OF A LUBRICATING OIL SELECTED FROM THE GROUP CONSISTING OF MINERAL AND SYNTHETIC OILS (2) 5 TO 25% OF A SULFONIC ACID WHICH UPON NEUTRALIZATION PRODUCES AN OIL-SOLUBLE SALT (3) AN AQUEOUS SOLUTION OF AN INORGANIC BASIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF BARIUM OXIDE AND BARIUM HYDROXIDES, SAID SOLUTION BEING CHARACTERIZED FURTHER IN THAT THE AMOUNT OF WATER VARIES FROM 10 TO 60% AND THE AMOUNT OF SAID INORGANIC BASIC COMPOUND DISSOLVED IN SAID WATER VARIES FROM 0.5 TO 25% OF THE TOTAL EMULSION COMPOSITION. (4) 20 TO 40% OF A VOLATILE HYDROCARBON B. PASSING CARBON DIOXIDE THROUGH SAID EMULSION UNTIL THE SAME IS ACID TO ALPHA-NAPHTHOLBENZEIN INDICATOR, WHEREBY SAID INORGANIC BASIC COMPOUND IS CONVERTED TO WATER-INSOLUBLE PARTICLES HAVING DIAMETERS LESS THAN 1 MICRON, C. REMOVING THE WATER AND ANY VOLATILE HYDROCARBON.