Patents Examined by P. Achutamurtny
  • Phase-transfer catalysis with onium-containing synthetic mesoporous crystalline material
    Patent number: 5347060
    Abstract: This invention relates to phase transfer catalysis (PTC) using a composition of synthetic ultra-large pore crystalline material which contains a cation of an onium compound, e.g. cetyltrimethylammonium, within the pores of said material. The crystalline material has, after calcination, an X-ray diffraction pattern with at least one peak at a d-spacing greater than 18 Angstrom Units and a benzene adsorption capacity of greater than 15 grams benzene per 100 grams of said material at 6.7 kPa (50 torr) and 25.degree. C.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: September 13, 1994
    Assignee: Mobil Oil Corporation
    Inventors: Stuart D. Hellring, Jeffrey S. Beck