Removal of oil from water

Details Removal of oil from water Removal of oil from water

B - Operations, Transporting

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B01J 20/20 (2006.01) B01D 17/02 (2006.01) C01B 31/00 (2006.01) C02F 1/28 (2006.01) C02F 1/68 (2006.01) C09K 3/32 (2006.01) C11B 3/10 (2006.01)

Patent

CA 2032965

ABSTRACT OF THE DISCLOSURE A hydrophobic and lyophobic particular vermicular structure of expanded graphite, possessing the property of absorbing large amounts of petroleum products is described. This expanded grahite is characterized by three main properties: (a) a specific density in the range of 0.003 - 0.1 g/ml; (b) a surface area in the range of 50-200 m2/g; and (c) closed pores in the range of 3% to 20%. It can be used in the form of particulate, pillows, blankets, booms or as a filter medium. The oil absorbed onto the expanded grahite can be released by pressure or recovered by solvent extraction.

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