METHOD OF REFINING SPENT LUBE OILS Russian patent published in 2002 - IPC

Abstract RU 2188851 C1

FIELD: lubrication materials. SUBSTANCE: refining is effected with adsorbent suspended in spent oils, after which oil is filtered. Adsorbent is represented by peat modified with 50-100% orthophosphoric acid. Refining is conducted at ambient temperature for 30-60 min. EFFECT: increased degree of refining and speeded up refining process without heating. 1 tbl, 27 ex

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RU 2 188 851 C1

Authors

Dmitrieva Z.T.

Judina N.V.

Bylina I.V.

Zvereva A.V.

Smolentseva E.V.

Bondaletov V.G.

Dates

2002-09-10—Published

2001-05-21—Filed