Title:
METHOD OF REGENERATION OF RHODIUM-CONTAINING CATALYST
Document Type and Number:
WIPO Patent Application WO/1980/002809
Kind Code:
A1
Abstract:
A method of regeneration of rhodium-containing catalysts, deactivated and poisoned with sulphur in the course of dealkylation of alkylbenzols or their technical mixtures with steam or hydrogen, comprising stages of coke firing in an oxygen-containing gas and of chlorination with chlorine or a chloroorganic combination in the flow of hydrogen, an inert gas or an inert gas mixed with oxygen and moisture. The catalyst is additionally treated with ammonia or nitrogen-containing compound, capable, under the treatment conditions, of desintegrating and creating ammonia, in the presence of at least one of the components selected from the following group: water, hydrogen, nitrogen-oxygen mixture. The treatment can be carried out both in liquid and gaseous phases at a temperature of 20 to 650 C and under a pressure of 1 to 50 atm.
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Inventors:
RABINOVICH G (SU)
LUKINA Z (SU)
MOZHAIKO V (SU)
VOLKOVA K (SU)
LUKINA Z (SU)
MOZHAIKO V (SU)
VOLKOVA K (SU)
Application Number:
PCT/SU1980/000073
Publication Date:
December 24, 1980
Filing Date:
May 05, 1980
Export Citation:
Assignee:
RABINOVICH G (SU)
LUKINA Z (SU)
MOZHAIKO V (SU)
VOLKOVA K (SU)
LUKINA Z (SU)
MOZHAIKO V (SU)
VOLKOVA K (SU)
International Classes:
B01J23/46; B01J23/54; B01J23/96; B01J38/42; B01J38/66; C07B61/00; C07C1/00; C07C4/18; C07C4/20; C07C15/02; C07C67/00; (IPC1-7): B01J23/96
Foreign References:
| SU348033A1 | 1978-02-28 | |||
| SU448671A1 | 1978-03-15 | |||
| SU627849A1 | 1978-10-15 |
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