| 摘要 |
FIELD: lubricants. SUBSTANCE: acid-activated diatomite with particle size 0.2-0.4 is added in amount 15-20% to spent oil preheated to 80-90 C at constant stirring of suspension with electromechanical stirrer for 15-30 min, after which oil is separated from adsorbent by means of centrifugation. EFFECT: improved quality of regenerated oil due to lower optical density and lower content of suspended impurities. 2 cl, 1 tbl, 2 ex |
