METHOD OF REGENERATING EXHAUSTED MINERAL OILS AND THEIR MIXTURES Russian patent published in 2003 - IPC

Abstract RU 2206606 C1

FIELD: lubricants. SUBSTANCE: exhausted mineral oils and their mixtures are treated with 15-20% aqueous solution of sodium metasilicate (modulus 0.5-0.9) in amount 5-7% of the weight of exhausted oil during 25-30 min, after which emulsion is settled, centrifuged, and thus obtained oil is vacuumized at 80-90 C and absolute pressure 100 mm Hg during 20-30 min. EFFECT: simplified regeneration technology. 1 tbl, 3 ex

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RU 2 206 606 C1

Authors

Mikheeva Eh.A.

Dates

2003-06-20—Published

2002-05-08—Filed