Daily Archives: January 27, 2012

Oil Extraction and Refining

January 27, 2012

Oil extraction involves pressing the oil bearing material to separate crude oil from the solids high in protein or washing flaked or modestly pressed material with solvent, almost always hexane. The defatted solids after pressing are known as cake and after solvent extraction as meal. The oil, crude oil because it contains undesirable components, such […]