US2698347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of halogen compounds
Assignee: Ethyl Corp
•
Filing: 1951-01-30
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Granted: 1954-12-28
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Expires: 1971-01-30
Abstract
No abstract record available.
Inventors
- 👤 Albert P Giraitis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:22
CPC Classifications
C; C07; C07B; C07B39/00; C07C; C07C17/00; C07C17/093; C07C17/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
A PROCESS OF PRODUCING HALOGENATED HYDROCARBONS AND METAL SULFATES, COMPRISING TREATING IN A REACTION ZONE SOLID METAL HALIDE SELECTED FROM THE CLASS CONSISTING OF ALKALI METAL CHLORIDES, ALKALI METAL BROMIDES, ALKALINE EARTH METAL CHLORIDES, AND ALKALINE EARTH METAL BROMIDES WITH A SATURATED HYDROCARBON, AT A TEMPERATURE OF FROM 250* TO 450* C., IN THE PRESENCE OF SULFUR TRIOXIDE, THE SULFUR TRIOXIDE BEING IN THE PROPORTION OF FROM ABOUT 0.5 MOLE TO 8 MOLES TO 1 MOLE OF THE HYDROCARBON; SEPARATELY WITHDRAWING A GASEOUS PRODUCT STREAM AND A NON-GASEOUS PRODUCTS STREAM FROM THE REACTION ZONE, THE GASEOUS PRODUCT STREAM COMPRISING HALOGENATED HYDROCARBON, SULFUR DIOXIDE, AND HYDROGEN HALIDE, AND THE NON-GASEOUS STREAM COMPRISING METAL SULFATE; AND RECOVERING THE HALOGENATED HYDROCARBON FROM THE GASEOUS PRODUCT STREAM.
References Cited (Backward Citations)
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Cited
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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) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |