US3876754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of chlorine pentafluoride
Assignee: Boeing North American Inc
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Filing: 1964-06-09
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Granted: 1975-04-08
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Expires: 1984-06-09
Abstract
Abstract 1. A process for producing chlorine pentafluoride comprising the steps of continuously passing fluorine as one reactant and at least one member of the group consisting of chlorine, chlorine monofluoride and chlorine trifluoride as another reactant into a reaction chamber adjacent the lower end of the chamber, maintaining the temperature and pressure in the reaction chamber sufficiently high to effect reaction between said reactants to form gaseous chlorine pentafluoride in a mixture with gaseous fluorine; continuously passing said mixture from the reaction chamber at a place adjacent the upper end of the chamber into a condensing chamber at a place adjacent the upper end of the condensing chamber; maintaining the temperature in said condensing chamber sufficiently low to effect condensation of chlorine pentafluoride from said mixture; withdrawing condensed chlorine pentafluoride from said condensing chamber, and continuously recirculating the uncondensed gas from the condensing chamber at a place remote from the upper end of the condensing chamber to said reaction chamber at a place adjacent the lower end of the reaction chamber.
Inventors
- 👤 John A Pursley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:24
CPC Classifications
C; C01; C01B; C01B7/00; C01B7/24; B; B01; B01J; B01J12/00; B01J19/00; B01J19/24; B01J19/245; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/00101; B01J2219/00159; B01J2219/00162
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
170 words
A PROCESS FOR PRODUCING CHLORINE PENAFLUORIDE COMPRISING THE STEPS OF CONTINUOUSLY PASSING FLUORINE AS ONE REACTANT AND AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF CHLORINE, CHLORINE MONOFLUORIDE AND CHLORINE TRIFLUORIDE AS ANOTHER REACTANT INTO A REACTION CHAMBER ADJACENT THE LOWER END OF THE CHAMBER, MAINTAINING THE TEMPERATURE AND PRESSURE IN THE REACTION CHAMBER SUFFICIENT HIGH TO EFFECT REACTION BETWEEN SAID REACTANTS TO FORM GASEOUS CHLORINE PENTFLUORIDE IN A MIXTURE WITH GASEOUS FLUORINE; CONTINUOUSLY PASSING SAID MIXTURE FROM THE REACTION CHAMBER AT A PLACE ADJACENT THE UPPER END OF THE CHAMBER INTO A CONDENSING CHAMBER AT A PLACE ADJACENT THE UPPER END OF THE CONDENSING CHAMBER; MAINTAINING THE TEMPERATURE IN SAID CONDENSING CHAMBER SUFFICIENTLY LOW TO EFFECT CONDENSTION OF CHLORINE PENTAFLUORIDE FROM SAID MIXTURE; WITHDRAWING CONDENSING CHLORINE PETAFLUORIDE FROM SAID CONDENSING CHAMBER, AND CONTINUOUSLY RECIRCULATING THE UNCONDENSED GAS FROM THE CONDENSING CHAMBER AT A PLACE REMOTE FROM THE UPPER END OF THE CONDENSING CHAMBER TO SAID REACTION CHAMBER AT A PLACE ADJACENT THE LOWER END OF THE REACTION CHAMBER.
Claim 2
Dependent Claim
170 words
A PROCESS FOR PRODUCING CHLORINE PENAFLUORIDE COMPRISING THE STEPS OF CONTINUOUSLY PASSING FLUORINE AS ONE REACTANT AND AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF CHLORINE, CHLORINE MONOFLUORIDE AND CHLORINE TRIFLUORIDE AS ANOTHER REACTANT INTO A REACTION CHAMBER ADJACENT THE LOWER END OF THE CHAMBER, MAINTAINING THE TEMPERATURE AND PRESSURE IN THE REACTION CHAMBER SUFFICIENT HIGH TO EFFECT REACTION BETWEEN SAID REACTANTS TO FORM GASEOUS CHLORINE PENTFLUORIDE IN A MIXTURE WITH GASEOUS FLUORINE; CONTINUOUSLY PASSING SAID MIXTURE FROM THE REACTION CHAMBER AT A PLACE ADJACENT THE UPPER END OF THE CHAMBER INTO A CONDENSING CHAMBER AT A PLACE ADJACENT THE UPPER END OF THE CONDENSING CHAMBER; MAINTAINING THE TEMPERATURE IN SAID CONDENSING CHAMBER SUFFICIENTLY LOW TO EFFECT CONDENSTION OF CHLORINE PENTAFLUORIDE FROM SAID MIXTURE; WITHDRAWING CONDENSING CHLORINE PETAFLUORIDE FROM SAID CONDENSING CHAMBER, AND CONTINUOUSLY RECIRCULATING THE UNCONDENSED GAS FROM THE CONDENSING CHAMBER AT A PLACE REMOTE FROM THE UPPER END OF THE CONDENSING CHAMBER TO SAID REACTION CHAMBER AT A PLACE ADJACENT THE LOWER END OF THE REACTION CHAMBER.
Claim 3
Dependent Claim
41 words
The process of claim 1 in which pressurized fluorine gas is made available as said one reactant by the steps of warming condensed fluorine to convert the same to gas under a pressure greater than that in the said reaction chamber.
Claim 4
Dependent Claim
33 words
The process of claim 1 in which the reaction chamber is at a temperature of from 100.degree.C to 400.degree.C and the pressure in the reaction chamber is between 100 psi and 2000 psi.
Claim 5
Dependent Claim
33 words
The process of claim 1 in which the reaction chamber is at a temperature of from 100.degree.C to 280.degree.C and the pressure in the reaction chamber is between 330 psi to 500 psi.
Claim 6
Dependent Claim
183 words
A cyclical process for producing chlorine pentafluoride by reaction between fluorine as one reactant and at least one member of the group consisting of chlorine, chlorine monofluoride and chlorine trifluoride as another reactant, the process comprising the steps of maintaining the temperature and pressure in a reaction chamber sufficiently high to effect reaction between said reactants to form gaseous chlorine pentafluoride in a mixture with gaseous fluorine; maintaining the temperature in a condensing chamber sufficiently low to effect condensation of chlorine pentafluoride from said mixture; passing said reactants into said reaction chamber at a place adjacent the lower end of the reaction chamber; permitting said mixture to flow by thermal convection from a place adjacent the upper end of the reaction chamber into said condensing chamber at a place adjacent the upper end of the condensing chamber; withdrawing condensed chlorine pentafluoride from said condensing chamber, and permitting the uncondensed gas to flow from the condensing chamber at a place remote from the upper end of the condensing chamber to said reaction chamber at a place adjacent the lower end of the reaction chamber.
Claim 7
Dependent Claim
183 words
A cyclical process for producing chlorine pentafluoride by reaction between fluorine as one reactant and at least one member of the group consisting of chlorine, chlorine monofluoride and chlorine trifluoride as another reactant, the process comprising the steps of maintaining the temperature and pressure in a reaction chamber sufficiently high to effect reaction between said reactants to form gaseous chlorine pentafluoride in a mixture with gaseous fluorine; maintaining the temperature in a condensing chamber sufficiently low to effect condensation of chlorine pentafluoride from said mixture; passing said reactants into said reaction chamber at a place adjacent the lower end of the reaction chamber; permitting said mixture to flow by thermal convection from a place adjacent the upper end of the reaction chamber into said condensing chamber at a place adjacent the upper end of the condensing chamber; withdrawing condensed chlorine pentafluoride from said condensing chamber, and permitting the uncondensed gas to flow from the condensing chamber at a place remote from the upper end of the condensing chamber to said reaction chamber at a place adjacent the lower end of the reaction chamber.
References Cited (Backward Citations)
US2982620A
Cited
US3134638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |