With Added Organic Material Patents (Class 208/180)
  • Method of rerefining oil with recovery of useful organic additives
    Patent number: 4028226
    Abstract: Used oil is rerefined by diluting it with a water-soluble polar diluent and removing insoluble impurities from the resulting solution, adding water to produce a two-phase system, separating the organic phase and removing the polar diluent therefrom. By this method, it is possible to recover oil which still contains viscosity modifying additives and the like. If desired, the rerefined oil can be subjected to further treatment such as hydrogenation.
    Type: Grant
    Filed: November 12, 1975
    Date of Patent: June 7, 1977
    Assignee: The Lubrizol Corporation
    Inventor: John Wesley Forsberg
  • Process of reclaiming lube oils
    Patent number: 3985642
    Abstract: This invention relates to a process of reclaiming lube oil which comprises treating spent lube oil with a surfactant, preferably an anionic surfactant, in combination with an amine, preferably a polyalkylene polyamine, and recovering the reclaimed oil.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: October 12, 1976
    Assignee: Petrolite Corporation
    Inventors: John P. Friel, Paul L. Hammond
  • H.sub.2 O.sub.2 -containing micellar dispersions
    Patent number: 3964994
    Abstract: Hydrogen peroxide is solubilized in a micellar dispersion, i.e. stable systems containing hydrocarbon, aqueous medium, and surfactant. The hydrogen peroxide-containing micellar dispersion is then admixed with any liquid media in which hydrogen peroxide is to be used as a reactant or catalyst to effect intimate contact and dispersion of the hydrogen peroxide within the liquid media. In this manner sour hydrocarbon streams are sweetened, for instance.
    Type: Grant
    Filed: July 19, 1971
    Date of Patent: June 22, 1976
    Assignee: Marathon Oil Company
    Inventor: Joe T. Kelly, deceased