Method for recovering oil from an oil-bearing solid material

Details Method for recovering oil from an oil-bearing solid material Method for recovering oil from an oil-bearing solid material

1996-05-30

1999-12-07

Carr, Deborah D

Organic compounds -- part of the class 532-570 series

Organic compounds

Fatty compounds having an acid moiety which contains the...

554 8, 554 15, 554 16, 554 20, 208 13, 208 30, 208 31, 208 45, 196 1452, 426312, C07C 100

Patent

active

059986409

ABSTRACT:
A method and apparatus for continuously removing oil from oil-bearing solids such as tar sands, vegetables or other solid materials using a solvent is provided. By providing a pressure differential between the exterior and interior of an oil extraction chamber, substantially oil free solids may be removed from the oil extraction chamber through a solids extraction channel without removing any substantial volume of solvent through the solids extraction channel.

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