Patents Examined by Elizbeth D. Wood
  • Method for the purifiction of a paraffin cut
    Patent number: 5731488
    Abstract: Paraffin cuts contaminated with aromatic compounds are brought in contact at ambient temperature with faujasites, in which the Si/Al ratio is less than 1.2, in particular, sodium faujasites which were partially exchanged with lithium. Thus, one can obtain purified cuts which are practically totally free from aromatic contaminants.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: March 24, 1998
    Assignee: CECA S.A
    Inventor: Dominique Plee