US3132157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing ethylene oxide by
Assignee: —
•
Filing: —
•
Granted: 1964-05-05
•
Expires: 1981-05-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:58
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/66; C; C07; C07D; C07D301/00; C07D301/02; C07D301/03; C07D301/04; C07D301/08; C07D301/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A PROCESS OF MAKING ETHYLENE OXIDE COMPRISING OXIDIZING ETHYLENE BY TREATING IT WITH A FREE OXYGEN-CONTAINING GAS IN THE PRESENCE OF A SILVER HALIDE CONTAINING SILVER CATALYST, THE CATALYST BEING PREPARED BY REACTING AN AQUEOUS SOLUTION OF SILVER NITRATE AND A HALIDE WITH AN ALKALI CARBONATE, THE HALIDE BEING TAKEN FROM THE GROUP CONSISTING OF HYDROHALIDES AND ALKALI AND ALKALINE EARTH HALIDES, THE HALOGEN OF WHICH IS TAKEN FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE, THE HALIDE BEING PRESENT IN THE SOLUTION IN AN AMOUNT FROM 0.01 TO 0.5 GRAM-EQUIVALENT PER 100 GRAM-ATOMS OF SILVER, AND HEATING THE PRECIPTATE AT 200*C. TO 500*C.
Claim 2
Dependent Claim
104 words
A PROCESS OF MAKING ETHYLENE OXIDE COMPRISING OXIDIZING ETHYLENE BY TREATING IT WITH A FREE OXYGEN-CONTAINING GAS IN THE PRESENCE OF A SILVER HALIDE CONTAINING SILVER CATALYST, THE CATALYST BEING PREPARED BY REACTING AN AQUEOUS SOLUTION OF SILVER NITRATE AND A HALIDE WITH AN ALKALI CARBONATE, THE HALIDE BEING TAKEN FROM THE GROUP CONSISTING OF HYDROHALIDES AND ALKALI AND ALKALINE EARTH HALIDES, THE HALOGEN OF WHICH IS TAKEN FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE, THE HALIDE BEING PRESENT IN THE SOLUTION IN AN AMOUNT FROM 0.01 TO 0.5 GRAM-EQUIVALENT PER 100 GRAM-ATOMS OF SILVER, AND HEATING THE PRECIPTATE AT 200*C. TO 500*C.
References Cited (Backward Citations)
CA531127A
Cited
US2463228A
Cited
US2615900A
Cited
US2709173A
Cited
US2765283A
Cited
US2825701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |