US4035434A
Expired / Lapsed
US
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Graphite intercalation
Assignee: Mobil Oil AS
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Filing: 1975-09-02
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Granted: 1977-07-12
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Expires: 1995-09-02
Abstract
Abstract Intercalation of a Lewis acid fluoride in graphite is effected in the presence of gaseous fluorine. The reaction results in new compositions useful as catalysts and as atmospheric pressure containers for normally gaseous Lewis acid fluorides.
Inventors
- 👤 Paul G. Rodewald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:41
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/16; C08G65/20; B; B01; B01J; B01J27/00; B01J27/06; B01J27/08; B01J27/12; C01; C01B; C01B32/00; C01B32/20; C01B32/21; C01B32/22; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/20; C07C2/22; C07C2/86; C07C2/861; C08F; C08F4/00; C08F4/06; C08F4/12; C07C2521/00; C07C2521/18; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1213; C07C2527/133; C07C2527/14; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
94 words
A process for polymerization of a polymerizable organic compound which comprises contacting the same at a temperature between about -20° C. and about 100° C., a pressure between about atmospheric and about 10 atmospheres at a liquid hourly space velocity between about 0.5 and about 1000 with a catalyst consisting essentially of graphite having intercalated in the lattice thereof between about 5 and about 50 weight percent of a Lewis acid fluoride having a boiling point below 300° C. of an element of Group II, IIIA, IV, V or VIB of the Periodic Table.
Claim 2
Dependent Claim
94 words
A process for polymerization of a polymerizable organic compound which comprises contacting the same at a temperature between about -20° C. and about 100° C., a pressure between about atmospheric and about 10 atmospheres at a liquid hourly space velocity between about 0.5 and about 1000 with a catalyst consisting essentially of graphite having intercalated in the lattice thereof between about 5 and about 50 weight percent of a Lewis acid fluoride having a boiling point below 300° C. of an element of Group II, IIIA, IV, V or VIB of the Periodic Table.
Claim 3
Dependent Claim
13 words
The process of claim 1 wherein the Lewis acid fluoride is boron trifluoride.
Claim 4
Dependent Claim
13 words
The process of claim 1 wherein the Lewis acid fluoride is phosphorus pentafluoride.
Claim 5
Dependent Claim
13 words
The process of claim 1 wherein the Lewis acid fluoride is antimony pentafluoride.
Claim 6
Dependent Claim
23 words
The process of claim 1 wherein the amount of said intercalated Lewis acid fluoride is between about 10 and about 40 weight percent.
Claim 7
Dependent Claim
12 words
The process of claim 1 wherein said organic compound is an olefin.
Claim 8
Dependent Claim
11 words
The process of claim 1 wherein said organic compound is tetrahydrofuran.
Claim 9
Dependent Claim
17 words
The process of claim 1 wherein said temperature is between about 0° C. and about 50° C.
Claim 10
Dependent Claim
18 words
The process of claim 1 wherein said liquid hourly space velocity is between about 1 and about 200.
Claim 11
Dependent Claim
59 words
The process of claim 1 wherein said catalyst has additionally intercalated therein between about 0.5 and about 75 weight percent of a Bronsted acid selected from the group consisting of hydrofluoric acid, hydrochloric acid, fluorosulfuric acid, trifluoromethane-sulfonic acid and mixtures thereof, the molar ratio of Bronsted acid to Lewis acid fluoride being within the range of 0.1:1 to 50:1.
References Cited (Backward Citations)
US2919266A
Cited
US3880944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-11 | 1981-01-10 | 1981-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-11 | 1985-01-10 | 1985-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-11 | 1989-01-10 | 1989-07-12 | $7700.00 | Window Closed / Lapsed |