US3217049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of methyl chloride
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1963-03-04
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Granted: 1965-11-09
•
Expires: 1983-03-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Bonem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:25
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A METHOD FOR RECOVERING METHYL CHLORIDE WHICH COMPRISES EXTRACTING AN AQUEOUS SOLUTION CONTAINING FROM ABOUT 300 TO ABOUT 400 P.P.M. OF METHYL CHLORIDE WITH A HYDROCARBON SOLVENT BOILING FROM ABOUT 30*F. TO ABOUT 600*F. AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 75*F. TO ABOUT 200*F. IN THE LIQUID PHASE AND AT A SOLVENT-TO-AQUEOUS SOLUTION WEIGHT RATIO FROM ABOUT 0.1 TO ABOUT 1:0 ABOUT 4 TO ABOUT 10 TO OBTAIN A HYDROCARBON EXTRACT PHASE AND AN AQUEOUS RAFFINATE PHASE, AND RECOVERING METHYL CHLORIDE FROM SAID EXTRACT PHASE.
Claim 2
Independent Claim
87 words
A METHOD FOR RECOVERING METHYL CHLORIDE WHICH COMPRISES EXTRACTING AN AQUEOUS SOLUTION CONTAINING FROM ABOUT 300 TO ABOUT 400 P.P.M. OF METHYL CHLORIDE WITH A HYDROCARBON SOLVENT BOILING FROM ABOUT 30*F. TO ABOUT 600*F. AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 75*F. TO ABOUT 200*F. IN THE LIQUID PHASE AND AT A SOLVENT-TO-AQUEOUS SOLUTION WEIGHT RATIO FROM ABOUT 0.1 TO ABOUT 1:0 ABOUT 4 TO ABOUT 10 TO OBTAIN A HYDROCARBON EXTRACT PHASE AND AN AQUEOUS RAFFINATE PHASE, AND RECOVERING METHYL CHLORIDE FROM SAID EXTRACT PHASE.
References Cited (Backward Citations)
GB589353A
Cited
US3148041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |