Fuel antiknock

Claim 1

HYDROCARBON FUEL OF THE GASOLINE BOILING RANGE ADAPTED FOR USE AS FUEL FOR SPARK IGNITION INTERNAL COMBUSTION ENGINES CONTAINING UP TO ABOUT 6.34 GRAMS OF LEAD PER GALLON AS AN ORGANOLEAD ANTIKNOCK AGENT, AND A METALLIC DERIVATIVE OF A PRODUCT OBTAINED BY REACTION BETWEEN (1) AN ORGANIC COMPOUND IN WHICH AT LEAST ONE CARBON ATOMS IS SUBSTITUTED WITH AT LEAST ONE UNIVALENT RADICAL COMPOSED SOLELY OF A GROUP VI-B ELEMENT AND HYDROGEN, SAID RADICAL BEING BONDED TO SAID CARBON ATOM THROUGH SAID GROUP VI-B ELEMENT, SAID COMPOUND CONTAINING ONLY ELEMENTS SELECTED FROM THE GROUP CONSISTING OF CARBON, HYDROGEN, OXYGEN, SULFUR, SELENIUM, AND TELLURIUM, AND (2) A PHOSPHORUS SULFIDE SELECTED FROM THE GROUP CONSISTING OF P2S5 AND P4S7, SAID PRODUCT BEING PREPARED BY HEATING FROM ABOUT 0.5 TO ABOUT 10 MOLES OF SAID COMPOUND PER MOLE OF SAID SULFIDE TO A TEMPERATURE AT WHICH HYDROGEN SULFIDE IS RELEASEDM, SAID METALLIC DERIVATIVE BEING PREPARED BY REACTING SAID PRODUCT AT A TEMPERATURE IN THJE RANGE OF ABOUT 180 TO 350*F. WITH AN AMOUNT OF A METALLIC BASE SELECTED FROM THE GROUP CONSISTING OF OXIDES, HYDROXIDES, AND CARBONATES SUFFICIENT TO NEUTRALIZE AT LEAST A PART OF THE ACIDITY OF SAID PRODUCT; SAID METALLIC DERIVATIVE BEING PRESENT IN SAID FUEL IN AMOUNT SUCH THAT THE PHOSPHORUS-TO-LEAD ATOM RATIO IS FROM ABOUT 0.02/3 TO ABOUT 1.6/3.