FIELD: process engineering.
SUBSTANCE: invention relates to gravity separation of water and oil or oil products, in particular, flooded furnace fuel oil. Proposed method comprises gravity sedimentation of mix in tank and drainage of separated products. Salt solution or dry salt is added into said mix in amount sufficient for producing water and oil or oil product density gradient not lower than 20 kg/m3, produced mix is mixed and precipitated. Required amount of salt is defined by protected formula.
EFFECT: higher efficiency of sedimentation due to increased density gradient.
4 cl, 1 ex
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