Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Phosphorus or compound containing same
Patent
1986-05-05
1987-08-25
Shine, W. J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Phosphorus or compound containing same
B01J 27182, B01J 27185, B01J 27188
Patent
active
046893148
ABSTRACT:
A catalyst having a surface concentration as measured by X-Ray Photoelectronic Spectroscopy (XPS) gives values of the Group VIB metal Xs/(Al+X)s of between 4 to 15 where X equals the Group VIB metal and a bulk concentration of between 2.0 to 15.0 wt. % of said Group VIB metal, a surface concentration as measured by X-Ray Photoelectronic Spectroscopy (XPS) gives values of the Group VIII metal Ys/(Al+Y)s of between 2 to 5 where Y equals the Group VIII metal and a bulk concentration of between 1.0 to 4 wt. % of said Group VIII metal, a surface concentration as measured by X-Ray Photoelectronic Spectroscopy (XPS) gives values of phosphorus Ps/(Al+P)s of between 0.1 to 8 and a bulk concentration of between 0.4 to 2 wt. % phosphorus and a surface concentration as measured by X-Ray Photoelectronic Spectroscopy (XPS) gives values of silica SiO.sub.2 /(Al+SiO.sub.2) of between 1 to 10 and a bulk concentration of between 0.1 to 5 wt. % silica and method for preparation of same.
REFERENCES:
patent: 3817873 (1974-06-01), Mickelson
patent: 4134856 (1979-01-01), Itoh et al.
Galiasso Roberto E.
Lujano Juan
Martinez Nelson P.
Velasquez Jose R.
Zerpa Carlos
Intevep S.A.
Shine W. J.
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