US3004912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulfurization process utilizing metallic sodium and recycling of sludge
Assignee: Millennium Petrochemicals Inc
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Filing: 1959-04-13
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Granted: 1961-10-17
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Expires: 1979-04-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Kaneko
- 👤 Virgil L Hansley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:40
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/02; C10G19/00; C10G29/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A CONTINUOUS PROCESS FOR SUBSTANTIALLY DESULFURIZING CRUDE DIESEL OIL WITH A TOTAL AMOUNT OF SODIUM EQUIVALENT TO ABOUT 1 GRAM ATOM OF SODIUM PER 1 GRAM ATOM OF SULFUR PRESENT IN SAID CRUDE DIESEL OIL, WHICH CONSISTS OF CONTINUOUSLY CONTACTING CRUDE DIESEL OIL WITH SLUDGE FROM A PREVIOUS DESULFURIZATION TREATMENT AND LESS THAN STOICHIOMETRIC AMOUNTS OF FRESH SODIUM, VAPORIZING SUBSTANTIALLY DESULFURIZED DIESEL OIL FROM SLUDGE CONTAINED IN THE RESULTING REACTION PRODUCT MIXTURE, AND CONTINUOUSLY RECYCLING A MAJOR PROPORTION OF SAID SLUDGE FOR TREATMENT OF SAID CRUDE DIESEL OIL.
Claim 2
Dependent Claim
88 words
A CONTINUOUS PROCESS FOR SUBSTANTIALLY DESULFURIZING CRUDE DIESEL OIL WITH A TOTAL AMOUNT OF SODIUM EQUIVALENT TO ABOUT 1 GRAM ATOM OF SODIUM PER 1 GRAM ATOM OF SULFUR PRESENT IN SAID CRUDE DIESEL OIL, WHICH CONSISTS OF CONTINUOUSLY CONTACTING CRUDE DIESEL OIL WITH SLUDGE FROM A PREVIOUS DESULFURIZATION TREATMENT AND LESS THAN STOICHIOMETRIC AMOUNTS OF FRESH SODIUM, VAPORIZING SUBSTANTIALLY DESULFURIZED DIESEL OIL FROM SLUDGE CONTAINED IN THE RESULTING REACTION PRODUCT MIXTURE, AND CONTINUOUSLY RECYCLING A MAJOR PROPORTION OF SAID SLUDGE FOR TREATMENT OF SAID CRUDE DIESEL OIL.
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) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |