Process and compositions for cracking hydrocarbon feeds (US Patent 3,692,700, 1972)

Willard H. Sawyer and Harry E. Robson received US Patent No. 3,692,700 on September 19, 1972, filed August 31, 1970. It was assigned to Exxon Research and Engineering Co.

The patent's abstract:

A PROCESS, AND COMPOSITIONS OF MATTER, FOR CRACKING HYDROCARBVON FEEDS, E.G., AT TEMPERATURES RANGING FROM ABOUT 400C.-650C. THE FEEDS ARE CRACKED AT CRACKING CONDONITIONS BY CONTACT WITH CATALYSTS SELECTED FROM THE GROUPS CONSISTING OF (A) MAGNESIUM CHRYSOTILE AND (B) MAGNESIUM CHRYSOTILE, NICKEL CHRYSOTILE AND COBALT CHRYSOTILE SUBSTITUTED BY CERTAIN SELECTED CONCENTRATIONS OF ALUMINUM. FLAKE FORMS OF CHRYSOTILE ARE PREFERRED, ESPECIALLY THOSE OF SURFACE AREAS RANGING FROM ABOUT 250 M.2/G.500 M.2/G., AND HIGHER. PARTICULARLY USEFUL CATALYSTS ARE FORMED BY INCORPORATION OF THESE MATERIALS IN MATRICES WHICH POSSESS BRONSTED ACIDITY.

Where it was listed

• Asbestos, March 1973, in its patents department (the year's issues)