Fluorinated silica catalyst and preparation of aromatic/aliphati

Details Fluorinated silica catalyst and preparation of aromatic/aliphati Fluorinated silica catalyst and preparation of aromatic/aliphati

1982-05-14

1985-03-12

Konopka, P. E.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Halogen or compound containing same

2523156, 260465B, 423338, 502233, B01J 2710, B01J 2108, C01B 3312, C07C12010

Patent

active

045045950

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 m.sup.2 /g, having a total pore volume ranging from about 1 to about 1.5 cm.sup.3 /g, with an average pore diameter ranging from about 100 to about 200 .ANG., having an exchange pH of less than about 3, and with the fluorine content thereof bonded to the silica, expressed in F.sup.-, ranging from about 0.05 to about 2% by weight based upon the silica, and the sodium content thereof, expressed as Na.sub.2 O, being less than about 1% by weight, also based upon the silica.

REFERENCES:
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patent: 2516967 (1950-08-01), Elam
patent: 2794002 (1957-05-01), Haensel et al.
patent: 3494875 (1970-02-01), Le Page et al.
patent: 4436669 (1984-03-01), Jacques et al.
patent: 4438042 (1984-03-01), Jacques et al.

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