John S. Roberts

Passivating metals on cracking catalysts

Process for reducing possibility of leaching of heavy metals from used petroleum cracking catalyst in land fills

Production of mercapto compounds

Cracking catalyst improvement with gallium compounds

Method for the oxidation of mercaptoalkanols to dithiodiglycols

Method of transferring a passivating agent to or from a cracking catalyst

Cracking process and catalyst for same containing indium to passivate contaminating metals

Catalyst poisons passivated with tin compounds plus both sulfur and phosphorus

Cracking catalyst poisons passivated with tin compounds plus both sulfur and phosphorus

Process to produce organosulfur compounds