US3900421A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of accelerating the biodegradation of petroleum products
Assignee: BANQUE EXPANSION INDUSTR
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Filing: 1973-02-13
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Granted: 1975-08-19
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Expires: 1993-02-13
Abstract
Abstract The present invention concerns the elimination of mineral oil, especially petroleum products by biological degradation. A composition is formed substantially by a phospho-amino-lipid mixed with a nontoxic and entirely biodegradable emulsifier, the phosphoamino-lipid being preferably lecithin. This composition may be used in liquid form for spraying floating oil-slicks and for cleaning tanks for mineral oil products and it may be brought into the form of a paste or powder by addition of mineral charges.
Inventors
- 👤 Pierre Fusey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:11
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/682; B; B09; B09C; B09C1/00; B09C1/10; C02F3/00; C02F3/34; C02F3/344; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/925; Y10S516/00; Y10S516/01; Y10S516/02; Y10S516/03; Y10S516/04; Y10S516/06; Y10S516/905; Y10S516/907
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
83 words
A METHOD OF ACCELERATING THE BIODEGRADATION OF PETROLEUM PRODUCTS, COMPRISING MIXING 100 PARTS BY WEIGHT OF THE PETROLEUM PRODUCT TO BE BIODEGRADED WITH ABOUT 30 PARTS BY WEIGHT OF A MIXTURE OF ONE PART BY WEIGHT OF LECITHIN WITH ONE TO FIVE PARTS BY WEIGHT OF AN EMULSIFIER SELECTED FROM THE GROUP CONSISTING OF SODIUM OLEYLISETHIONATE, SODIUM LAURYLSULFATE, SULPHONATED ALPHA-OLEFIN, SARCOSINATE, 2-AMINO-2-HYDROXYMETHYL-1, 3-PROPANEDIOL, AMINOMETHYL PROPANOL, ETHOXYLATED FATTY ACID, AND ETHOXYLATED FATTY ALCOHOL, AND FORMING AN EMULSION OF THE MIXTURE THUS PRODUCED WITH WATER.
Claim 2
Independent Claim
83 words
A METHOD OF ACCELERATING THE BIODEGRADATION OF PETROLEUM PRODUCTS, COMPRISING MIXING 100 PARTS BY WEIGHT OF THE PETROLEUM PRODUCT TO BE BIODEGRADED WITH ABOUT 30 PARTS BY WEIGHT OF A MIXTURE OF ONE PART BY WEIGHT OF LECITHIN WITH ONE TO FIVE PARTS BY WEIGHT OF AN EMULSIFIER SELECTED FROM THE GROUP CONSISTING OF SODIUM OLEYLISETHIONATE, SODIUM LAURYLSULFATE, SULPHONATED ALPHA-OLEFIN, SARCOSINATE, 2-AMINO-2-HYDROXYMETHYL-1, 3-PROPANEDIOL, AMINOMETHYL PROPANOL, ETHOXYLATED FATTY ACID, AND ETHOXYLATED FATTY ALCOHOL, AND FORMING AN EMULSION OF THE MIXTURE THUS PRODUCED WITH WATER.
Claim 3
Dependent Claim
14 words
A method as claimed in claim 1, in which said emulsifier is polyoxyethyleneglycol oleate.
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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |