US2579576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cracking with acid-treated clay catalyst
Assignee: GREAT LAKES CARBON Corp
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Filing: 1949-08-17
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Granted: 1951-12-25
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Expires: 1969-08-17
Abstract
No abstract record available.
Inventors
- 👤 John H Hickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:55
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/16; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A PROCESS FOR CRACKING HYDROCARBON OILS WHICH COMPRISES PASSING THE OIL TO BE CRACKED THROUGH A CRACKING ZONE CONTAINING A CATALYST COMPRISING ESSENTIALLY A BENTONITE CLAY ACTIVATED BY REACTING SAID CLAY AT A TEMPERATURE BETWEEN ABOUT 10* AND ABOUT 40* C. WITH ABOUT 0.05 TO ABOUT 0.15 POUND OF A MINERAL ACID PER POUND OF CLAY, SAID ACID BEING OF ABOUT 2% TO ABOUT 15% CONCENTRATION IN WATER, SEPARATING THE RESULTANT SOLUTION FROM THE CLAY, FURTHER REACTING THE CLAY WITH AN AQUEOUS SOLUTION OF A MINERAL ACID OF ABOUT 5% TO ABOUT 15% CONCENTRATION IN AN AMOUNT CORRESPONDING ACID PER POUND OF CLAY, POUND OF CONCENTRATED ACID PER POUND OF CLAY, AT A TEMPERATURE OF ABOUT 80* C. TO THE BOILING POINT OF SAID SOLUTION, SEPARATING THE RESULTANT SOLUTION FROM THE CLAY, WASHING THE CLAY, AND THEN DRYING IT.
Claim 2
Dependent Claim
139 words
A PROCESS FOR CRACKING HYDROCARBON OILS WHICH COMPRISES PASSING THE OIL TO BE CRACKED THROUGH A CRACKING ZONE CONTAINING A CATALYST COMPRISING ESSENTIALLY A BENTONITE CLAY ACTIVATED BY REACTING SAID CLAY AT A TEMPERATURE BETWEEN ABOUT 10* AND ABOUT 40* C. WITH ABOUT 0.05 TO ABOUT 0.15 POUND OF A MINERAL ACID PER POUND OF CLAY, SAID ACID BEING OF ABOUT 2% TO ABOUT 15% CONCENTRATION IN WATER, SEPARATING THE RESULTANT SOLUTION FROM THE CLAY, FURTHER REACTING THE CLAY WITH AN AQUEOUS SOLUTION OF A MINERAL ACID OF ABOUT 5% TO ABOUT 15% CONCENTRATION IN AN AMOUNT CORRESPONDING ACID PER POUND OF CLAY, POUND OF CONCENTRATED ACID PER POUND OF CLAY, AT A TEMPERATURE OF ABOUT 80* C. TO THE BOILING POINT OF SAID SOLUTION, SEPARATING THE RESULTANT SOLUTION FROM THE CLAY, WASHING THE CLAY, AND THEN DRYING IT.
References Cited (Backward Citations)
US2326704A
Cited
US2484828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |