L-zeolite-based hydrocarbon conversion catalysts
La/nd-spinel compositions for metals passivation in fcc...
Labeling of hydrocarbons
Lacquer reducing lubricating oil composition and method of...
Lactams and their synthesis
Lactone acid synthesis
Lactone modified, aminated dispersant additives useful in...
Lactone-modified, mannich base dispersant additives useful...
Laminar heavy metal aluminosillcates
Large pore catalysts for heavy hydrocarbon conversion
Latching mechanism on coke oven doors
Layered catalyst system for lube oil hydroconversion
Layered clay minerals and processes for using
Layered clay minerals, catalysts, and processes for using
Layered complex metal silicate composition, their...
Layered residua treatment catalyst process and temperature...
Leach recovery of oil from oil sands and like host materials
Lead with dichloroethane in fuel for i.c. engines
Leaded gasolines containing silicones and organic phosphates
Lecithin emulsions as conveyor system lubricants