Catalyst demetallization and process for using demetallized cata

Details Catalyst demetallization and process for using demetallized cata Catalyst demetallization and process for using demetallized cata

1986-07-02

1987-08-11

Dixon, Jr., William R.

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

Regenerating or rehabilitating catalyst or sorbent

Treating with a liquid or treating in a liquid phase,...

502 32, 502 34, 502 35, 502521, 208 52CT, 208120, B01J 3854

Patent

active

046861971

ABSTRACT:
An improved catalyst demetallization process involves chlorinating the metal contaminated catalyst at elevated temperatures and contacting the chlorinated catalyst with a liquid aqueous composition to produce a demetallized catalyst. Improved catalytic activity is obtained utilizing a catalyst comprising at least one crystalline material capable of promoting the hydrocarbon conversion, and cooling the chlorinated catalyst prior to contact with the liquid aqueous composition. An improved hydrocarbon conversion process is also disclosed.

REFERENCES:
patent: 3234145 (1966-02-01), Foster
patent: 3252918 (1966-05-01), Disegna et al.
patent: 3527715 (1970-09-01), Giannetti et al.
patent: 4102811 (1978-07-01), Burk et al.
patent: 4216118 (1980-08-01), Yoshida et al.
patent: 4424111 (1984-01-01), Zielke et al.
patent: 4473657 (1984-09-01), Tse et al.

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