Title:
CATALYST COMPRISING FLUORINE-CONTAINING SILICA, MANUFACTURE AND USE FOR NITRILE MANUFACTURE
Document Type and Number:
Japanese Patent JPS5826023
Kind Code:
A
Abstract:
An improved fluorinated siliceous catalyst, well adapted for the catalytic synthesis of aromatic/aliphatic nitriles from their corresponding formamides, formanilides or amides, is comprised of a plurality of silica particulates, the specific surface of which ranging from about 200 to about 300 m2/g, having a total pore volume ranging from about 1 to about 1.5 cm3/g, with an average pore diameter ranging from about 100 to about 200 ANGSTROM , having an exchange pH of less than about 3, and with the fluorine content thereof bonded to the silica, expressed in F31 , ranging from about 0.05 to about 2% by weight based upon the silica, and the sodium content thereof, expressed as Na2O, being less than about 1% by weight, also based upon the silica.
Inventors:
RORAN JIYATSUKU
MISHIERU REBURAN
ROORAN SEENIYUURAN
MISHIERU REBURAN
ROORAN SEENIYUURAN
Application Number:
JP7925482A
Publication Date:
February 16, 1983
Filing Date:
May 13, 1982
Export Citation:
Assignee:
RHONE POULENC SPEC CHIM
International Classes:
C01B33/12; B01J21/00; B01J21/08; B01J27/00; B01J27/12; B01J35/10; C01B33/154; C07C67/00; C07C253/00; C07C253/20; C07C255/33; C07C255/49; C07C255/50; C07C255/53; (IPC1-7): B01J21/08; C01B33/12; C07C120/10; C07C121/66
Attorney, Agent or Firm:
Motohiro Kurauchi