US3282728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for suppressing electrostatic charges on sulphur
Assignee: Societe Nationale des Petroles dAquitaine SA
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Filing: 1962-05-01
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Granted: 1966-11-01
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Expires: 1982-05-01
Abstract
No abstract record available.
Inventors
- 👤 Lacroux Robert
- 👤 Zwilling Jean-Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:27
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/10; C01B17/0243; H; H05; H05F; H05F1/00; H05F1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A PROCESS FOR TREATING SOLID SULPHUR PARTICLES TO BE TRANSPORTED IN BUKL IN ORDER TO SUPPRESS ELECTROSTATIC CHARGES THERON AND REDUCE COMBUSTIBILITY THEREOF, WHICH COMPRISES ADDING TO THE SULPHUR, IN AN AMOUNT OF FROM 0.1 TO 1.0% BY WEIGHT THEREOF, AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF A SOLVENT, FROM 0.5 TO 15% BY WEIGHT OF AN ELECROLYTE FROM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDES, CARBONATES, BORATES AND PHOSPHATES AND AMMONIUM HYDROXIDE, AND ALKALI METAL AND ALKALINE EARTH SALTS OF STRONG ACIDS, AND FROM 0.2 TO 10% BY WEIGHT OF A SURFACE ACTIVE AGENT FRON THE GROUP CONSISTING OF NON-IONIC ALKYL-ALKOXY-PHENOL, CATIONIC QUATERNARY AMMONIUM DERIVATIVES, AND FATTY AMINES, AND FORMING A THIN, SUBSTANTIALLY UNIFORM CHARGE-SUPPRESSING COATING OF SAID ELECTROYLTE ON THE SULPHUR PARTICLES.
Claim 2
Dependent Claim
123 words
A PROCESS FOR TREATING SOLID SULPHUR PARTICLES TO BE TRANSPORTED IN BUKL IN ORDER TO SUPPRESS ELECTROSTATIC CHARGES THERON AND REDUCE COMBUSTIBILITY THEREOF, WHICH COMPRISES ADDING TO THE SULPHUR, IN AN AMOUNT OF FROM 0.1 TO 1.0% BY WEIGHT THEREOF, AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF A SOLVENT, FROM 0.5 TO 15% BY WEIGHT OF AN ELECROLYTE FROM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDES, CARBONATES, BORATES AND PHOSPHATES AND AMMONIUM HYDROXIDE, AND ALKALI METAL AND ALKALINE EARTH SALTS OF STRONG ACIDS, AND FROM 0.2 TO 10% BY WEIGHT OF A SURFACE ACTIVE AGENT FRON THE GROUP CONSISTING OF NON-IONIC ALKYL-ALKOXY-PHENOL, CATIONIC QUATERNARY AMMONIUM DERIVATIVES, AND FATTY AMINES, AND FORMING A THIN, SUBSTANTIALLY UNIFORM CHARGE-SUPPRESSING COATING OF SAID ELECTROYLTE ON THE SULPHUR PARTICLES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |