US4330475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerosol direct fluorination method and apparatus
Assignee: Individual
•
Filing: 1979-12-06
•
Granted: 1982-05-18
•
Expires: 1999-12-06
Abstract
Abstract A method and apparatus for improving direct fluorinations are disclosed in which the material to be fluorinated is formed into an aerosol prior to fluorination.
Inventors
- 👤 James L. Adcock
- 👤 Ehrengard B. Renk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:01
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J19/00; B01J19/24; B01J19/2415; C; C07; C07B; C07B39/00; C07C; C07C17/00; C07C17/093; C07C17/10; C07D; C07D319/00; C07D319/10; C07D319/12; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
75 words
A process for fluorinating a material, comprising: a. generating an aerosol containing the material to be fluorinated by forming a colloidal suspension of solid carrier particles in an inert gas and subsequently condensing the material to be fluorinated onto said carrier particles; b. flowing said aerosol through the reaction zone of a fluorination reactor; and, c. introducing elemental fluorine into the flow of said aerosol under conditions sufficient for fluorination of said material to occur.
Claim 2
Dependent Claim
75 words
A process for fluorinating a material, comprising: a. generating an aerosol containing the material to be fluorinated by forming a colloidal suspension of solid carrier particles in an inert gas and subsequently condensing the material to be fluorinated onto said carrier particles; b. flowing said aerosol through the reaction zone of a fluorination reactor; and, c. introducing elemental fluorine into the flow of said aerosol under conditions sufficient for fluorination of said material to occur.
Claim 3
Dependent Claim
23 words
A process of claim 1 wherein said elemental fluorine is introduced by flowing fluorine gas into the reaction zone of said fluorination reactor.
Claim 4
Dependent Claim
28 words
A process of claim 2 wherein the concentration of fluorine gas is increased along the flow path of said aerosol through the reaction zone of said fluorination reactor.
Claim 5
Dependent Claim
28 words
A process of claims 1, 2 or 3 wherein the temperature is raised along the flow path of said aerosol through the reaction zone of said fluorination reactor.
Claim 6
Dependent Claim
11 words
A process of claim 4 wherein said inert gas comprises helium.
Claim 7
Dependent Claim
13 words
A process of claim 5 wherein said carrier particles comprise sodium fluoride particles.
Claim 8
Dependent Claim
15 words
A process of claim 6 wherein the material to be fluorinated comprises a hydrocarbon compound.
Claim 9
Dependent Claim
11 words
A process of claim 7 wherein said hydrocarbon compound comprises cyclohexane.
Claim 10
Dependent Claim
10 words
A process of claim 7 wherein said hydrocarbon comprises dioxane.
Claim 11
Dependent Claim
10 words
A process of claim 7 wherein said hydrocarbon comprises neopentane.
Claim 12
Dependent Claim
70 words
In a direct fluorination process wherein a material to be fluorinated is contacted with elemental fluorine under conditions sufficient to produce fluorination of said material: The improvement comprising generating an aerosol of the material to be fluorinated by forming a colloidal suspension of solid carrier particles in an inert gas and subsequently condensing the material to be fluorinated onto said carrier particle and thereafter contacting said aerosol with elemental fluorine.
Claim 13
Dependent Claim
70 words
In a direct fluorination process wherein a material to be fluorinated is contacted with elemental fluorine under conditions sufficient to produce fluorination of said material: The improvement comprising generating an aerosol of the material to be fluorinated by forming a colloidal suspension of solid carrier particles in an inert gas and subsequently condensing the material to be fluorinated onto said carrier particle and thereafter contacting said aerosol with elemental fluorine.
Claim 14
Dependent Claim
12 words
The improvement of claim 11 wherein said elemental fluorine comprises fluorine gas.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-17 | 1985-11-16 | 1986-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-17 | 1989-11-16 | 1990-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-17 | 1993-11-16 | 1994-05-18 | $7700.00 | Window Closed / Lapsed |