Haloporphyrins and their preparation and use as catalysts
Abstract
The invention provides novel catalyst compositions, useful in the oxidation of hydrocarbons with air or oxygen to form hydroxy-group containing compounds and in the decomposition of hydroperoxides to form hydroxy-group containing compounds. The catalysts comprise transition metal complexes of a porphyrin ring having 1 to 12 halogen substituents on the porphyrin ring, at least one of said halogens being in a meso position and/or the catalyst containing no aryl group in a meso position. The compositions are prepared by halogenating a transition metal complex of a porphyrin. In one embodiment, a complex of a porphyrin with a metal whose porphyrin complexes are not active for oxidation of hydrocarbons is halogenated, thereby to obtain a haloporphyrin complex of that metal, the metal is removed from the haloporphyrin complex to obtain the free base form of the haloporphyrin, and a metal such as iron whose porphyrin complexes are active for oxidation of hydrocarbons and for the decomposition of alkyl hydroperoxides is complexed with the free base to obtain an active catalyst for oxidation of hydrocarbons and decomposition of alkyl hydroperoxides.
- Inventors:
- Issue Date:
- Research Org.:
- Sun Refining and Marketing Company
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 527773
- Patent Number(s):
- 5663328
- Application Number:
- PAN: 8-672,202
- Assignee:
- Sun Co., Inc., Philadelphia, PA (United States)
- DOE Contract Number:
- FC21-90MC26029
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 2 Sep 1997
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 40 CHEMISTRY; CATALYSTS; HYDROXY COMPOUNDS; CHEMICAL COMPOSITION; HYDROCARBONS; OXIDATION; PEROXIDES; DECOMPOSITION; PORPHYRINS; TRANSITION ELEMENT COMPLEXES; HALOGEN COMPOUNDS; CHEMICAL PREPARATION
Citation Formats
Ellis, Jr, P E, and Lyons, J E. Haloporphyrins and their preparation and use as catalysts. United States: N. p., 1997.
Web.
Ellis, Jr, P E, & Lyons, J E. Haloporphyrins and their preparation and use as catalysts. United States.
Ellis, Jr, P E, and Lyons, J E. Tue .
"Haloporphyrins and their preparation and use as catalysts". United States.
@article{osti_527773,
title = {Haloporphyrins and their preparation and use as catalysts},
author = {Ellis, Jr, P E and Lyons, J E},
abstractNote = {The invention provides novel catalyst compositions, useful in the oxidation of hydrocarbons with air or oxygen to form hydroxy-group containing compounds and in the decomposition of hydroperoxides to form hydroxy-group containing compounds. The catalysts comprise transition metal complexes of a porphyrin ring having 1 to 12 halogen substituents on the porphyrin ring, at least one of said halogens being in a meso position and/or the catalyst containing no aryl group in a meso position. The compositions are prepared by halogenating a transition metal complex of a porphyrin. In one embodiment, a complex of a porphyrin with a metal whose porphyrin complexes are not active for oxidation of hydrocarbons is halogenated, thereby to obtain a haloporphyrin complex of that metal, the metal is removed from the haloporphyrin complex to obtain the free base form of the haloporphyrin, and a metal such as iron whose porphyrin complexes are active for oxidation of hydrocarbons and for the decomposition of alkyl hydroperoxides is complexed with the free base to obtain an active catalyst for oxidation of hydrocarbons and decomposition of alkyl hydroperoxides.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {9}
}