US3252894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crude oil hydrorefining process
Assignee: Universal Oil Products Co
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Filing: 1963-10-14
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Granted: 1966-05-24
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Expires: 1983-10-14
Abstract
No abstract record available.
Inventors
- 👤 John G Gatsis
- 👤 William K T Gleim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:32
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08; C10G45/14; C10G45/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A PROCESS FOR HYDROREFINING A HYDROCARBON CHARGE STOCK WHICH COMPRISES ADMXING SAID CHARGE STOCK WITH AT LEAST ONE HETEROPOLY ACID OF A MEAL OF GROUP VI-B HAVING AN ATOMIC NUMBER GREATER THAN 24, HEATING THE RESULTING MIXTURE AT A TEMPERATURE LESS THAN ABOUT 310*C. AND FOR A TIME SUFFICIENT TO DECOMPOSE SAID HETEROPOLY ACID, REACTING THE RESULTING COLLOIDAL SUSPENSION WITH HYDROGEN AND ADDED HYDROGEN SULFIDE AT A TEMPERATURE ABOVE ABOVE 225*C. AND AT A PRESSURE GREATER THAN ABOUT 500 POUNDS PER SQUARE INCH GAUGE, SAID REACTION BEING INITIATED IN THE PRESENCE OF THE ADDED HYDROGEN SULFIDE, AND RECOVERING A HYDROREFINED LIQUID PRODUCT.
Claim 2
Dependent Claim
102 words
A PROCESS FOR HYDROREFINING A HYDROCARBON CHARGE STOCK WHICH COMPRISES ADMXING SAID CHARGE STOCK WITH AT LEAST ONE HETEROPOLY ACID OF A MEAL OF GROUP VI-B HAVING AN ATOMIC NUMBER GREATER THAN 24, HEATING THE RESULTING MIXTURE AT A TEMPERATURE LESS THAN ABOUT 310*C. AND FOR A TIME SUFFICIENT TO DECOMPOSE SAID HETEROPOLY ACID, REACTING THE RESULTING COLLOIDAL SUSPENSION WITH HYDROGEN AND ADDED HYDROGEN SULFIDE AT A TEMPERATURE ABOVE ABOVE 225*C. AND AT A PRESSURE GREATER THAN ABOUT 500 POUNDS PER SQUARE INCH GAUGE, SAID REACTION BEING INITIATED IN THE PRESENCE OF THE ADDED HYDROGEN SULFIDE, AND RECOVERING A HYDROREFINED LIQUID PRODUCT.
References Cited (Backward Citations)
US2554597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |