Patents Assigned to ExxonMobil Chemical Co.
  • Process for making aromatic aldehydes using ionic liquids
    Patent number: 6320083
    Abstract: A process for the carbonylation of alkyl aromatic compounds uses acidic ionic liquids. In one embodiment, the ionic liquid is intrinsically acidic, having an anion mole fraction of greater than 0.5. The ionic liquids include those comprised of a quaternary nitrogen-containing cation and a metal halide anion. The process provides for good conversion and selectivity in the production of the corresponding aromatic aldehyde compound.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: November 20, 2001
    Assignee: ExxonMobil Chemical Co.
    Inventor: Ramzi Yanni Saleh