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1. (WO1992009367) PROCESS FOR REGENERATING A ZEOLITE CATALYST
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009367 International Application No.: PCT/US1991/008762
Publication Date: 11.06.1992 International Filing Date: 26.11.1991
Chapter 2 Demand Filed: 25.06.1992
IPC:
B01J 29/90 (2006.01) ,B01J 38/64 (2006.01) ,C07C 17/12 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
29
Catalysts comprising molecular sieves
90
Regeneration or reactivation
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
38
Regeneration or reactivation of catalysts, in general
48
Liquid treating or treating in liquid phase, e.g. dissolved or suspended
64
using alkaline material; using salts
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
17
Preparation of halogenated hydrocarbons
093
by replacement by halogens
10
of hydrogen atoms
12
in the ring of aromatic compounds
Applicants:
EASTMAN KODAK COMPANY [US/US]; 343 State Street Rochester, NY 14650-2201, US
Inventors:
TUSTIN, Gerald, Charles; US
JETER, Joseph, Floyd; US
GARRITY, Richard, Irving; US
Agent:
MARTIN, Charles, R.; 343 State Street Rochester, NY 14650-2201, US
Priority Data:
620,81203.12.1990US
Title (EN) PROCESS FOR REGENERATING A ZEOLITE CATALYST
(FR) PROCEDE DE REGENERATION D'UN CATALYSEUR A ZEOLITHE
Abstract:
(EN) Disclosed is a process for regeneration of a zeolite catalyst comprising conducting the following steps within the regeneration zone wherein the zeolite is located: (1) applying vacuum or delivering a source of molecular oxygen or inert gaz for a period of time sufficient to remove a substantial portion of the volatile compounds from the zeolite; (2) cooling the zeolite to a temperature below 100 degrees C; (3) contacting the zeolite with an aqueous solution having a pH in the range of 7 to 14; (4) drying the zeolite; (5) delivering an oxygen containing calcination gas to the regeneration zone and heating the zeolite to a temperature above 350 degrees C; (6) cooling the zeolite to a temperature below 100 degrees C; (7) contacting the zeolite with an aqueous solution having a pH in the range of 7 to 14.
(FR) On décrit un procédé de régénération d'un catalyseur à zéolithe comprenant les étapes suivantes, lesquelles ont lieu dans la zone de régénération où se trouve la zéolithe. (1) Créer un vide ou alimenter cette zone en une source d'oxygène moléculaire ou d'un gaz inerte pour une durée suffisante pour éliminer une part importante des composés volatils de la zéolithe; (2) refroidir la zéolithe jusqu'à ce qu'elle atteigne une température inférieure à 100 ° C; (3) mettre en contact la zéolithe avec une solution aqueuse dont le pH est compris entre 7 et 14; (4) faire sécher la zéolithe; (5) alimenter la zone de régénération en un gaz de calcination contenant de l'oxygène et chauffer la zéolithe jusqu'à ce qu'elle atteigne une température dépassant 350 ° C; (6) refroidir la zéolithe de façon qu'elle atteigne une température inférieure à 100° C; (7) mettre en contact la zéolithe avec une solution aqueuse dont le pH est compris entre 7 et 14.
Designated States: CA, JP, KR
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0560883JPH06503263CA2097306KR1019930703075