The Organic -c(=o)o- Compound Is Naphthenic Acid Or A Salt Thereof Patents (Class 508/340)
  • Lubricant for fluid dynamic bearing, spindle motor equipped therewith and magnetic disk unit
    Patent number: 7781383
    Abstract: A lubricant, comprising: a base oil as primary lubricant component, and a naphthenate salt as additive (A), and an alkylimidazole compound as additive (B), added to the base oil, preferably further comprising an aliphatic amine compound as additive (C), a fluid dynamic bearing with the lubricant filled therein, a spindle motor with the fluid dynamic bearing installed therein, and a magnetic disk device with the spindle motor installed therein.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: August 24, 2010
    Assignee: Panasonic Corporation
    Inventors: Takanori Shiraishi, Hideaki Ohno, Katsushi Hirata
  • Gas/liquid separation in a hydrocarbon conversion process
    Patent number: 6645369
    Abstract: A gas/liquid(s) separation system is constituted by three different sections: a primary separator (1) for flows with a G/L in the range 0.1 to 10; a secondary separator (2) for flows with a G/L in the range 10 to 50; a system (3) which limits the formation of a liquid vortex; where G/L is the ratio of the gas to liquid mass flow rates. The separation system is suitable for the separation of gas and liquid from a hydrocarbon conversion process, e.g. a hydrotreatment process.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: November 11, 2003
    Assignee: Institut Francais du Petrole
    Inventors: Christophe Boyer, Abdelhakim Koudil, Thiéry Gauthier