US3304337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethane chlorination
Assignee: Frontier Chemical Co
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Filing: 1962-08-22
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Granted: 1967-02-14
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Expires: 1982-08-22
Abstract
No abstract record available.
Inventors
- 👤 Jr James Irwin Jordan
- 👤 Vierk Harold Stanton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:11
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
143 words
A PROCESS FOR CHLORINATING ETHANE TO MAKE A MIXTURE OF CHLORINATED HYDROCARBONS RICH IN METHYL CHLOROFORM, VINYL CHLORIDE AND VINYLIDENE CHLORIDE, WHICH COMPRISES THE STEPS OF: PASSING INTO A REACTION ZONE A MIXTURE CONSISTING ESSENTIALLY OF ETHANE, CHLORINE, AND A SATURATED CHLORINATED ETHANE CONTAINING 1 TO 3 CHLORINE ATOMS PER MOLECULE, SAID SATURATED CHLORINATED ETHANE BEING IN PROPORTIONS SUFFICIENT (A) TO ABSORB EXOTHERMIC HEAT OF REACTION SO AS TO THEREBY MAINTAIN THE TEMPERATURE IN SAID ZONE WITHIN THE RANGE OF ABOUT 650*F. TO ABOUT 820*F., AND (B) TO MODIFY THE PRODUCT DISTRIBUTION OF SAID CHLORINATED HYDROCARBONS, SAID ZONE BEING MAINTAINED AT A SUPERATMOSPHERIC PRESSURE OF ABOUT 10 P.S.I.G. TO ABOUT 100 P.S.I.G., MOLE RATIO OF FREE CHLORINE TO ETHANE BEING BETWEEN ABOUT 1.5 AND ABOUT 3, WITHDRAWING THE REACTION MIXTURE FROM SAID REACTION ZONE, SEPARATING AND RECOVERING THE DESIRED CHLORINATED HYDROCARBON REACTION PRODUCT,
Claim 2
Dependent Claim
143 words
A PROCESS FOR CHLORINATING ETHANE TO MAKE A MIXTURE OF CHLORINATED HYDROCARBONS RICH IN METHYL CHLOROFORM, VINYL CHLORIDE AND VINYLIDENE CHLORIDE, WHICH COMPRISES THE STEPS OF: PASSING INTO A REACTION ZONE A MIXTURE CONSISTING ESSENTIALLY OF ETHANE, CHLORINE, AND A SATURATED CHLORINATED ETHANE CONTAINING 1 TO 3 CHLORINE ATOMS PER MOLECULE, SAID SATURATED CHLORINATED ETHANE BEING IN PROPORTIONS SUFFICIENT (A) TO ABSORB EXOTHERMIC HEAT OF REACTION SO AS TO THEREBY MAINTAIN THE TEMPERATURE IN SAID ZONE WITHIN THE RANGE OF ABOUT 650*F. TO ABOUT 820*F., AND (B) TO MODIFY THE PRODUCT DISTRIBUTION OF SAID CHLORINATED HYDROCARBONS, SAID ZONE BEING MAINTAINED AT A SUPERATMOSPHERIC PRESSURE OF ABOUT 10 P.S.I.G. TO ABOUT 100 P.S.I.G., MOLE RATIO OF FREE CHLORINE TO ETHANE BEING BETWEEN ABOUT 1.5 AND ABOUT 3, WITHDRAWING THE REACTION MIXTURE FROM SAID REACTION ZONE, SEPARATING AND RECOVERING THE DESIRED CHLORINATED HYDROCARBON REACTION PRODUCT,
Claim 3
Dependent Claim
127 words
A PROCESS FOR MAKING 1,1-DICHLOROETHANE WHICH COMPRISES PASSING A FEED CONSISTING ESSENTIALLY OF ETHANE, CHLORINE AND EHTYL CHLORIDE THROUGH A REACTION ZONE AT A TEMPERATURE BETWEEN ABOUT 650* AND 820*F. AND AT SUPERATMOSPERIC PRESSURE BETWEEN ABOUT 10 P.S.I.G. AND ABOUT 100 P.S.I.G., SAID FEED CONTAINING ABOUT 0.5 TO 1.2 MOLES OF FREE CHLORINE PER MOLE OF ETHANE AND ABOUT 0.8 TO 2 MOLES OF ETHYL CHLORIDE PER MOLE OF FREE CHLORINE, SAID ETHYL CHLORIDE BEING PRESENT IN SAID FEED IN A PROPORTION SUFFICIENT TO ABSORB EXOTHERMIC HEAT OF REACTION SO AS TO MAINTAIN THE TEMPERATURE IN SAID ZONE WITHIN THE RANGE BETWEEN ABOUT 650* AND 820*F. AND TO MODIFY THE PRODDUCT DISTRIBUTION OF SAID CHLORINATED HYDROCARBONS, AND WITHDRAWING AN EFFLUENT RICH IN 1,1-DICHLOROETHANE FROM SAID REACTION ZONE.
Claim 4
Dependent Claim
127 words
A PROCESS FOR MAKING 1,1-DICHLOROETHANE WHICH COMPRISES PASSING A FEED CONSISTING ESSENTIALLY OF ETHANE, CHLORINE AND EHTYL CHLORIDE THROUGH A REACTION ZONE AT A TEMPERATURE BETWEEN ABOUT 650* AND 820*F. AND AT SUPERATMOSPERIC PRESSURE BETWEEN ABOUT 10 P.S.I.G. AND ABOUT 100 P.S.I.G., SAID FEED CONTAINING ABOUT 0.5 TO 1.2 MOLES OF FREE CHLORINE PER MOLE OF ETHANE AND ABOUT 0.8 TO 2 MOLES OF ETHYL CHLORIDE PER MOLE OF FREE CHLORINE, SAID ETHYL CHLORIDE BEING PRESENT IN SAID FEED IN A PROPORTION SUFFICIENT TO ABSORB EXOTHERMIC HEAT OF REACTION SO AS TO MAINTAIN THE TEMPERATURE IN SAID ZONE WITHIN THE RANGE BETWEEN ABOUT 650* AND 820*F. AND TO MODIFY THE PRODDUCT DISTRIBUTION OF SAID CHLORINATED HYDROCARBONS, AND WITHDRAWING AN EFFLUENT RICH IN 1,1-DICHLOROETHANE FROM SAID REACTION ZONE.
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |