Patent US3315007A successfully refreshed from Google Patents.
US3315007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrogenation of saturated hydrocarbons over noble-metal catalyst
Assignee: Monsanto Co
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Filing: 1964-12-28
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Granted: 1967-04-18
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph B Abell
- 👤 Loyd W Fannin
- 👤 James F Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:20
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J21/00; B01J21/02; B01J21/04; B01J23/42; B01J23/54; B01J23/56; B01J23/58; C; C07; C07C; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3335; C07C5/3337; B01J37/00; B01J37/02; B01J37/03; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/02; C07C2523/04; C07C2523/38; C07C2523/40; C07C2523/42; C07C2523/44; C07C2523/54; C07C2523/56; C07C2523/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR DEHYDROGENATION OF SATURATED HYDOCARBONS TO MONO-ETHYLENICALLY UNSATURATED HYDROCARBONS WHICH COMPRISES CONTACTING SAID SATURATED HYDROCARBONS CONCURRENTLY WITH HYDROGEN IN A MOL RATIO OF HYDROGEN TO SATURATED HYDROCARBONS OF 0.1:1 TO 5:1 AT A TEMPERATURE OF 400 TO 650*C. AND AT A PRESSURE AND SPACE VELOCITY SUFFICIENT TO CAUSE DEHYDROGENATION OF SAID SATURATED HYDROCARBONS WITH A CATALYST COMPRISNG 0.02 TO 5 PERCENT BY WEIGHT OF A NOBLE METAL, SAID CATALYST HAVING BEEN ACTIVATED IN AN ATMOSPHERE CONSISTING ESSENTIALLY OF HYDROGEN AT ELEVATED TEMPERATURES WITHIN THE RANGE OF 350 TO 550*C. FOR AT LEAST 2 HOURS AFTER COMPLETION OF REDUCTION OF SAID CATALYST.
Claim 2
Dependent Claim
103 words
A PROCESS FOR DEHYDROGENATION OF SATURATED HYDOCARBONS TO MONO-ETHYLENICALLY UNSATURATED HYDROCARBONS WHICH COMPRISES CONTACTING SAID SATURATED HYDROCARBONS CONCURRENTLY WITH HYDROGEN IN A MOL RATIO OF HYDROGEN TO SATURATED HYDROCARBONS OF 0.1:1 TO 5:1 AT A TEMPERATURE OF 400 TO 650*C. AND AT A PRESSURE AND SPACE VELOCITY SUFFICIENT TO CAUSE DEHYDROGENATION OF SAID SATURATED HYDROCARBONS WITH A CATALYST COMPRISNG 0.02 TO 5 PERCENT BY WEIGHT OF A NOBLE METAL, SAID CATALYST HAVING BEEN ACTIVATED IN AN ATMOSPHERE CONSISTING ESSENTIALLY OF HYDROGEN AT ELEVATED TEMPERATURES WITHIN THE RANGE OF 350 TO 550*C. FOR AT LEAST 2 HOURS AFTER COMPLETION OF REDUCTION OF SAID CATALYST.
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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |