CATALYTIC DEHAZING OF LUBRICATING BASE OILS

摘要

Process for catalytically dehazing lubricating base oils, which process comprises contacting the lubricating base oil in the presence of hydrogen with a catalyst comprising naturally occurring and/or synthetic ferrierite, which ferrierite has been modified to reduce the mole percentage of alumina and a low acidity refractory oxide binder material, which is essentially free of alumina.