Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Halogen or compound containing same
Patent
1997-04-11
2000-12-26
Wood, Elizabeth D.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Halogen or compound containing same
502226, 502228, 502229, 502302, 502303, 502439, 570164, 570165, 570166, 570168, 570169, 570170, B01J 2708, B01J 27138, B01J 27128, B01J 2310
Patent
active
061659312
ABSTRACT:
A process is disclosed for increasing the fluorine content of a saturated or olefinic halogenated hydrocarbon starting material of the formula C.sub.n H.sub.a Cl.sub.b F.sub.c, wherein n is an integer from 1 to 6, a is an integer from 0 to to 12, b is an integer from 0 to 13 and c is an integer from 0 to 13. The process involves contacting the starting material in the vapor phase at a temperature in the range of about 150.degree. C. to about 500.degree. C. with HF and a catalytic metal supported on a trivalent lanthanum compound support (the catalytic metal being chromium, cobalt, nickel, zinc, magnesium, copper, silver and/or gold). Certain catalytic compositions including catalytic metal (e.g., chromium, nickel, cobalt, zinc and/or magnesium) supported on a support at trivalent lanthanum compound containing fluoride anion are also disclosed. The atomic ratio of catalytic metal to lanthanum in the compositions is from about 1:1 to 1:999.
REFERENCES:
patent: 3231519 (1966-01-01), Clark et al.
patent: 3900429 (1975-08-01), Komatsu et al.
patent: 4535067 (1985-08-01), Courty et al.
patent: 5693588 (1997-12-01), Poston
L.E. Manzer et al., Advanced Cat., 39, 329-350, 1993, No Month Available.
M. Bannert et al., Reactions of Lanthanum Fluoride With Haloalkanes, Z. Anorg. Allg. Chem, 421, 135-142, 1996, No Month Available.
E. I. Du Pont de Nemours and Company
Wood Elizabeth D.
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