Patent US3660512A successfully refreshed from Google Patents.
US3660512A
Expired / Lapsed
US
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Process for removing sulfur from crude sulfate turpentine or distillate fraction thereof
Assignee: SCM Glidco Organics Corp
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Filing: 1970-04-13
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Granted: 1972-05-02
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Expires: 1990-04-13
Abstract
Abstract CRUDE SULFATE TURPENTINE OR DISTILLATE FRACTION THEREOF IS DESULFURIZED WHILE SIMULTANEOUSLY RETARDING CHLORINATION OF THE ORGANIC COMPONENTS THEREIN. THE STOCK FOR TREATMENT IS MIXED WITH AN AQUEOUS DISPERSION OF HYPOCHLORITE CONTAINING NOT SUBSTANTIALLY MORE THAN ABOUT 10% AVAILABLE CHLORINE AND HAVING A PH FROM 10.1 TO 10.6 UNTIL MAXIMUM DESULFURIZATION HAS OCCURRED CONSISTENT WITH ACCEPTABLE LIMITED INCREASE IN ORGANIC CHLORIDE. THE RESULTING DESULFURIZED RAFFINATE PHASE IS SEPARATED FROM THE AQUEOUS PHASE, WASHED WITH WATER, AND RECOVERED.
Inventors
- 👤 Clayton B Hamby
- 👤 Charles W Barrett
- 👤 John M Derfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:12
CPC Classifications
C; C07; C07C; C07C11/00; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/947
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |