Complex calcium salts of oxidized petroleum oils and process for preparing the same

Claim 1

A COMPLEX CALCIUM SALT OF AN OXIDIZED PETROLEUM OIL PRODUCED BY THE PROCESS WHICH COMPRISES (1) FORMING A MIXTURE COMPRISING (A) A PETROLEUM OIL HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM ABOUT 300 TO ABOUT 1000 AND (B) FROM ABOUT 2% TO ABOUT 25%, BASED ON THE WEIGHT OF SAID OIL, OF CALCIUM HYDROXIDE, (2) CONTACTING SAID MIXTURE WITH AN OXIDIZING GAS AT A TEMPERATURE OF FROM ABOUT 250*F. TO ABOUT 600*F., TO EFFECT OXIDATION OF SAID OIL AND REACTION OF THE CALCIUM HYDROXIDE WITH THE OXIDIZED OIL, (3) CONTINUING SAID OXIDATION FOR A TIME SUFFICIENT TO EFFECT THE REACTION OF FROM ABOUT 5% TO ABOUT 85% OF THE CALCIUM HYDROXIDE WITH THE OXIDIZED OIL, (4) PROVIDING A MIXTURE COMPRISING (A) THE OXIDEIZED OIL-CALCIUM HYDROXIDE REACTION PRODUCT FROM STEP 3, (B) FROM ABOUT 2.0% TO ABOUT 25%, BASED ON THE WEIGHT OF THE OXIDEIZED OIL-CALCIUM HYDROXIDE REACTION PRODUCT FROM STEP 3, OF A CALCIUM SALT REAGENT, SELECTED FROM THE GROUP CONSISTING OF CALCIUM CHLORIDE, CALCIUM HYPOCHLORITE AND A MIXTURE OF CALCIUM CHLORIDE AND CALCIUM HYDROXIDE CONTAINING AT LEAST ABOUT 25% OF CALCIUM CHLORIDE AND (C) WATER, AT A TEMPERATURE BELOW THE BOILING POINT OF WATER, (5) SUBSTANTIALLY COMPLETELY DEHYDRATING THE MIXTURE PROVIDED IN STEP 4, AND (6) SUBJECTING THE DEHYDRATAED MIXTURE TO FILTRATION TO SEPARATE THE COMPLEX CALCIUM SALT PRODUCT.