Highly basic magnesium containing additive agent

Claim 1

THE PROCESS OF PREPARING A STABLE DISPERSION OF A BASIC, MAGNESIUM-CONTAINING, INORGANIC COMPOUND IN A NON-VOLATILE CARRIER, SAID JINORGANIC COMPOUND BEING PRESENT IN THE FORM OF PARTICLES HAVING A DIAMETER NOT EXCEEDING ABOUT 0.25 MICRON, SAID PROCESS COMPRISING: (A) ADMIXING A GLYCOL ETHER SOLUTION OF AN OIL-SOLUBLE MAGNESIUM ALKOXIDE-CARBONATE COMPLEX, SAID COMPLEX HAVING BEEN PREPARED FROM A GLYCOL ETHER HAVING NOT MORE THAN 8 CARBON ATOMS, AN OIL-SOLUBLE DISPERSING AGENT, LIQUID LUBRICATING OIL, AND WATER IN AN AMOUNT IN EXCESS OF THE STOICHIOMETRIC REQUIREMENT FOR HYDROLYSIS OF SAID MAGNESIUM ALKOXIDE-CARBONATE COMPLEX, (B) HYDROLYZING THE MAGNESIUM ALKOXIDE-CARBONATE COMPLEX TO AN OIL-INSOLUBLE MAGNESIUM-CONTAINING INORGANIC COMPOUND, AND THEN (C) REMOVING THE VOLATILE MATERIAL, (D) SAID PROCESS BEING CHARACTERIZED FURTHER IN THAT THE MAGNESIUM ALKOXIDE-CARBONATE COMPLEX OF STEP (A) IS PREPARED BY A PROCESS COMPRISING: (1) REACTING MAGNESIUM WITH A GLYCOL ETHER HAVING NOT MORE THAN 8 CARBON ATOMS TO FORM A MAGNESIUM ALKOXIDE. (2) REACTING THE MAGNESIUM ALKOXIDE WITH FROM ABOUT 0.5 TO ABOUT 1.5 MOLES OF CARBON DIOXIDE PER MOLE OF SAID MAGNESIUM ALKOXIDE TO FORM A MAGNESIUM ALKOXIDE-CARBONATE COMPLEX.