Labofina, S.a.

Cosden Technology, Inc.

Andre O Lepain

Robert D Bronchart

Roger E Remacle

Alain G Charlier

A method for reducing oil slick on seawater comprising applying to the oil slick a dispersing compositions containing at least one surface-active agent, at least one solvent, and a nitrogen-containing compound which is a nutrient for the micro-organisms which are active in oil metabolism. The nitrogen-containing compound is a monoalkylguanidinium salt ##STR1## wherein R is an aliphatic hydrocarbon radical, saturated or unsaturated, containing from about 8 to about 20 carbon atoms, and X is a halogen or an acid anion.

Method for treating oil slicks

Compositions for treating oil slicks on seawater said dispersing compositions containing at least one surface-active agent, at least one solvent, and a nitrogen-containing compound which is a nutrient for the micro-organisms which are active in oil metabolism. The nitrogen-containing compound is a monoalkylguanidinium salt ##STR1## wherein R is an aliphatic hydrocarbon radical, saturated or unsaturated, containing from about 8 to about 20 carbon atoms, and X is a halogen or an acid anion.

Compositions and method for treating oil slicks

Stable diesel fuel emulsions of the water-in-oil type comprising from about 97 to about 90 volume percent of a mixture of a major amount of usual diesel fuel and a minor amount of at least about 5 volume percent of an aqueous solution of methanol, ethanol or a mixture thereof, and from about 3 to about 10 volume percent of an emulsifying blend of sorbitan monooleate and a water soluble, ethoxylated, non-ionic surfactant; and a process for producing such stable emulsions comprising adding while stirring the aqueous alcohol solution to a mixture of diesel fuel and emulsifying blend.

Diesel fuel compositions and process for their production

Surface active compositions for dispersing oil slicks consisting essentially of specified proportions of a fatty acid sorbitan monoester, a polyalkyleneoxide adduct of a fatty acid sorbitan monoester, an aqueous solution of a dialkylsulfosuccinate salt, a glycol monoether and water and a method for dispersing an oil slick on water comprising applying a surface active composition of the above-described type to the surface of the oil slick.

Surface-active compositions and method for dispersing oil slicks

A process for disposing of oil slicks on seawater comprises treating the polluted seawater with a liquid dispersing composition and a nitrogen-containing nutrient for the seawater micro-organisms which are active in oil metabolization. The nutrient is a diguanidinium salt having the general formula:

Oil slick dispersants using diguanidinium salt

A system is disclosed for rapid on-site analysis of a water-borne oil-slick, which system utilizes a combination of devices designed to permit on-site determination of the water content and specific gravity of the oil/water mixture, and the initial boiling point of the water-free oil.

System for the rapid analysis of water-borne oil spills

Process and apparatus for on the site determination of the characteristics of an oil-pollutant containing water. The determinaton includes the use of a combination of devices designed to permit the on-site determination of the water content and specific gravity of the mixture of water and pollutant, and the initial boiling point of water-free pollutant.

Process and apparatus for the rapid determination of the characteristics

Disclosed are surface-active compositions for dispersing or collecting oil slicks on water or for protecting or cleaning beaches, which compositions comprise

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Rosieres-St-Andre, Belgium

Andre O Lepain