Controlling and recovering oil spills from the environment

Details Controlling and recovering oil spills from the environment Controlling and recovering oil spills from the environment

1989-08-07

1990-07-17

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210924, C02F 128

Patent

active

049419781

ABSTRACT:
There is disclosed a method for treatment of an oil slick resulting from an oil spill on a body of water. The oil slick is treated with a granular elastomeric gum comprising a block copolymer of ethylene/butylene and styrene. The treatment material has a low density, typically from 14 to about 15 pounds per cubic foot and will absorb oil and form a dry solid which has a non-tacky and non-oily surface. The copolymer granular elastomeric gum is broadcast on the surface of an oil slick in proportions from about 0.2 to about 1 part per weight part of oil. The wave action on the body of water is generally sufficiently turbulent to admix the absorbent with the oil of the oil slick, resulting in the formation of floating solids which are dry to the touch and which have a non-oily, non-tacky surface. These solids can be readily recovered from the water or from a shoreline after they have washed ashore.

REFERENCES:
patent: 3518183 (1970-06-01), Evans
patent: 3819514 (1974-06-01), Clampitt et al.
patent: 4066539 (1978-01-01), Hachisu et al.
patent: 4343680 (1982-08-01), Field et al.

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