Patent US3261878A successfully refreshed from Google Patents.
US3261878A
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US
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Autothermal cracking of liquid hydrocarbons
Assignee: —
•
Filing: —
•
Granted: 1966-07-19
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Expires: 1983-07-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:18
CPC Classifications
C; C10; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10; C07; C07C; C07C11/00; C07C11/02; C07C4/00; C07C4/02; C07C4/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A METHOD FOR THE AUTOTHERMAL CRACKING OF LIQUID HYDROCARBONS FOR THE PRODUCTION OF GASEOUS OLEFINES IN A FLUIDIZED BED OF OIL COKE FORMED BY THE CRACKING AT TEMPERATURES OF 630 TO 850*C. IN THE PRESENCE OF OXYGEN AND STEAM, THE IMPROVEMENT WHICH COMPRISES ADDING TO THE OIL COKE IN THE FLUIDIZED BED FROM 0.05 TO ABOUT 6% BY WEIGHT BASED ON THE AMOUNT OF SAID OIL COKE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHOSPHORIC ACID, BORIC ACID, A SLAT OF PHOSPHORIC ACID, A SALT OF BORIC ACID AND MIXTURES THEREOF.
Claim 2
Dependent Claim
94 words
IN A METHOD FOR THE AUTOTHERMAL CRACKING OF LIQUID HYDROCARBONS FOR THE PRODUCTION OF GASEOUS OLEFINES IN A FLUIDIZED BED OF OIL COKE FORMED BY THE CRACKING AT TEMPERATURES OF 630 TO 850*C. IN THE PRESENCE OF OXYGEN AND STEAM, THE IMPROVEMENT WHICH COMPRISES ADDING TO THE OIL COKE IN THE FLUIDIZED BED FROM 0.05 TO ABOUT 6% BY WEIGHT BASED ON THE AMOUNT OF SAID OIL COKE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHOSPHORIC ACID, BORIC ACID, A SLAT OF PHOSPHORIC ACID, A SALT OF BORIC ACID AND MIXTURES THEREOF.
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |