Fuel oil compositions containing high barium content complex salts of sulfonic acids

Claim 1

A FUEL OIL CONTAINING FROM ABOUT 10 TO ABOUT 200 POUNDS PER 1000 BARRELS, OF A HIGH BRIUM CONTENT COMPLEX SALT OF A SYNTHETIC WAX-BENZENE SULFONIC ACID PRODUCED BY THE METHOD WHICH COMPRISES THE STEPS OF (1) SUBJECTING AN OIL SOLUTION OF A BASIC BARIUM SALT OF THE WAX-BENZENE SULFONIC ACID TO TREATMENT WITH CARBON DIOXIDE WHILE MAINTAINING THE TEMPERATURE OF SAID HYDROCARBON SOLUTION AT A LEVEL OF FROM ABOUT 150*C. TO ABOUT 250*C., THE AMOUNT OF CARBON DIOXIDE EMPLOYED DURING SAID TREATMENT BEING AT LEAST ABOUT 1 MOL PER MOL OF BASIC BARIUM SALT IN SAID HYDROCARBON SOLUTION, (2) LOWERING THE TEMPERATURE OF THE REACTION MIXTURE FROM STEP 1 TO A LEVEL OF FROM ABOUT 25*C. TO ABOUT 60*C., (3) ADDING BARIUM METHYLATE TO THE REACTION MIXTURE IN AN AMOUNT TO PROVIDE ABOUT 1 EQUIVALENT OF BARIUM PER MOL OF THE BASIC BARIUM SALT OF WAX-BENZENE SULFONIC ACID EMPLOYED IN STEP 1, (4) RAISING THE TEMPERATURE OF THE REACTION MIXTURE OF A LEVEL OF FROM ABOUT 150*C. TO ABOUT 250*C. AND (5) FILTERING THE REACTION MIXTURE TO RECOVER AN OIL SOLUTION OF THE HIGH BARIUM CONTENT COMPLEX SALT OF THE WAX-BENZENE SULFONIC ACID.