US2585469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of chloromethanes
Assignee: EIDP Inc
•
Filing: 1948-05-20
•
Granted: 1952-02-12
•
Expires: 1968-05-20
Abstract
No abstract record available.
Inventors
- 👤 Paul R Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:01
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PROCESS FOR CHLORINATING A MIXTURE OF METHANE AND HYDROGEN, WHICH MIXTURE CONTAINS FROM 20% TO 60% OF HYDROGEN, TO PRODUCE PREDOMINANTLY CHLOROFORM, CARBON TETRCHLORIDE AND HYDROGEN CHLORIDE, WHICH COMPRISES PASSING THE CHLORINE AND METHANE-HYDROGEN GAS MIXTURE THROUGH A BED OF FINELY DIVIDED INERT SOLIDS UNDER CONDITIONS WHEREBY THE PASSAGE OF THE GASES THERETHROUGH MAINTAINS THE INERT SOLIDS IN A FLUIDIZED TURBULENT, CONDITION, THE TEMPERATURE OF THE TURBULENT BED BEING MAINTAINED AT FROM 325* TO 450* C. AND THE CHLORINE BEING ADDED IN INCREMENTS IN SUCH AMOUNTS THAT THE CHLORINE CONCENTRATION AT ANY PARTICULAR POINT IN THE REACTION BED DOES NOT EXCEED THE IGNITION THRESHOLD
Claim 2
Dependent Claim
105 words
A PROCESS FOR CHLORINATING A MIXTURE OF METHANE AND HYDROGEN, WHICH MIXTURE CONTAINS FROM 20% TO 60% OF HYDROGEN, TO PRODUCE PREDOMINANTLY CHLOROFORM, CARBON TETRCHLORIDE AND HYDROGEN CHLORIDE, WHICH COMPRISES PASSING THE CHLORINE AND METHANE-HYDROGEN GAS MIXTURE THROUGH A BED OF FINELY DIVIDED INERT SOLIDS UNDER CONDITIONS WHEREBY THE PASSAGE OF THE GASES THERETHROUGH MAINTAINS THE INERT SOLIDS IN A FLUIDIZED TURBULENT, CONDITION, THE TEMPERATURE OF THE TURBULENT BED BEING MAINTAINED AT FROM 325* TO 450* C. AND THE CHLORINE BEING ADDED IN INCREMENTS IN SUCH AMOUNTS THAT THE CHLORINE CONCENTRATION AT ANY PARTICULAR POINT IN THE REACTION BED DOES NOT EXCEED THE IGNITION THRESHOLD
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) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |