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US 4,382,873 AGranted
Dispersant and biodegradant formulations for treating hydrocarbon-polluted waters
AssigneeInstitut Francais du Petrole
InventorsClaude Gatellier, Andree Plessis, Patrick Gateau, Jean-Pierre Durand
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Abstract
Dispersant and biodegradant formulations are manufactured by admixing at least one melamine derivative with at least one compound having a hydroxy function, at least one phosphorus compound and at least one surfactive agent. Aqueous emulsions obtained from these formulations are also provided.
Claims23
A biodegradable composition which is both an oil dispersant and a nutrient for microorganisms, and which is useful for accelerating the microbiological degradation of petroleum materials in water, said composition comprising:
- (a) at least one assimilable nitrogen compound, said compound being a condensation product of melamine and formaldehyde or a condensation product of melamine with urea and formaldehyde;
- (b) at least one organic hydroxy compound;
- (c) at least one assimilable phosphorus compound;
- and
- (d) at least one surface-active agent.
2 more elements
Dependencies are inferred from the claim text.