US4110252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytically active AlCl3 -graphite intercalate
Assignee: Phillips Petroleum Co
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Filing: 1976-12-06
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Granted: 1978-08-29
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Expires: 1996-12-06
Abstract
Abstract A catalytically active composition is provided that is an intercalate of graphite, aluminum halide, and a Group VA metal halide. A process for preparing an intercalate of graphite, aluminum halide, and a Group VA metal halide is also provided.
Inventors
- 👤 Clifford E. Smith
- 👤 Hans D. Holtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:15
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; B01J27/08; B01J27/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
149 words
A method for preparing an intercalate composition comprising graphite and aluminum halide comprising: (1) contacting graphite with a Group VA metal halide at a temperature below the decomposition temperature of the Group V halide and pressure sufficient and for a time sufficient to form a first intercalate composition, (2) treating said first intercalate composition at a temperature sufficiently elevated and at a pressure sufficient to remove at least a portion of Group VA metal halide from the first intercalate composition, and (3) contacting said intercalate composition from which Group VA metal halide has been at least partially removed with aluminum halide at a temperature below the decomposition temperature of the aluminum halide and pressure sufficient to form a second intercalated structure comprising aluminum halide, graphite, and a Group VA metal halide present in a molar ratio of Group VA metal halide to aluminum halide of about 1.4:1 to 0:1.
Claim 2
Independent Claim
149 words
A method for preparing an intercalate composition comprising graphite and aluminum halide comprising: (1) contacting graphite with a Group VA metal halide at a temperature below the decomposition temperature of the Group V halide and pressure sufficient and for a time sufficient to form a first intercalate composition, (2) treating said first intercalate composition at a temperature sufficiently elevated and at a pressure sufficient to remove at least a portion of Group VA metal halide from the first intercalate composition, and (3) contacting said intercalate composition from which Group VA metal halide has been at least partially removed with aluminum halide at a temperature below the decomposition temperature of the aluminum halide and pressure sufficient to form a second intercalated structure comprising aluminum halide, graphite, and a Group VA metal halide present in a molar ratio of Group VA metal halide to aluminum halide of about 1.4:1 to 0:1.
Claim 3
Dependent Claim
27 words
A method of claim 1 wherein said first intercalate is treated in the presence of a flow of an inert gas to remove Group VA metal halide.
Claim 4
Dependent Claim
70 words
A method of claim 1 wherein the temperature of graphite and Group VA metal halide during contacting is in the range of about 80° C to about 150° C; the temperature for removal of Group VA metal halide is in the range of about 170° C to about 450° C; and the temperature for contacting of aluminum halide is in the range of about 80° C to about 120° C.
Claim 5
Dependent Claim
37 words
A method of claim 1 wherein said Group VA metal halide is incompletely removed so that the composition resulting from contact with aluminum halide is an intercalated structure of grahite, Group VA metal halide, and aluminum halide.
Claim 6
Dependent Claim
22 words
A method of claim 1 wherein said Group VA metal halide is an antimony chloride and said aluminum halide is aluminum chloride.
Claim 7
Dependent Claim
35 words
A composition of matter comprising an intercalated structure of graphite, aluminum halide and Group VA metal halide present in a molar ratio of Group VA metal halide to aluminum halide of about 1.4:1 to 0:1.
Claim 8
Dependent Claim
35 words
A composition of matter comprising an intercalated structure of graphite, aluminum halide and Group VA metal halide present in a molar ratio of Group VA metal halide to aluminum halide of about 1.4:1 to 0:1.
Claim 9
Dependent Claim
26 words
A composition of claim 6 wherein the molar ratio of graphite to Group VA metal halide plus aluminum halide ranges from about 2.3:1 to about 108:1.
Claim 10
Dependent Claim
17 words
A composition of claim 6 wherein the Group VA metal is antimony and all halides are chloride.
Claim 11
Dependent Claim
31 words
A method of claim 1 wherein all the Group VA metal halide is removed in step (2) so that the resulting composition is an intercalated structure of graphite and aluminum halide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-08-28 | 1982-02-27 | 1982-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-28 | 1986-02-27 | 1986-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-28 | 1990-02-27 | 1990-08-29 | $7700.00 | Window Closed / Lapsed |