Separating solid particles from used lubricant compositions

Details Separating solid particles from used lubricant compositions Separating solid particles from used lubricant compositions

1998-04-20

1999-12-14

Lithgow, Thomas M.

Liquid purification or separation

Structural installation

Closed circulating system

210634, 210773, 210774, 210808, 210184, 554 11, 184 624, B01D 3528, B01D 1100

Patent

active

060012455

ABSTRACT:
A process for separating oil from a lubricant composition containing solid particles. The contaminated lubricant composition is mixed with liquid or supercritical CO.sub.2 before the lubricant composition and CO.sub.2 mixture is filtered through a filter medium. The CO.sub.2 is then evaporated, leaving an oil residue. Mixing the lubricant composition with CO.sub.2 before filtration prevents the filter medium from being blinded by solid particles.

REFERENCES:
patent: 4061566 (1977-12-01), Modell
patent: 4104163 (1978-08-01), Grutsch
patent: 4124528 (1978-11-01), Modell
patent: 4147624 (1979-04-01), Modell
patent: 4448669 (1984-05-01), Scinta
patent: 4466923 (1984-08-01), Friedrich
patent: 4547292 (1985-10-01), Zarohy
patent: 4741806 (1988-05-01), Scinta
patent: 4898673 (1990-02-01), Rice et al.
patent: 5135655 (1992-08-01), Cimino et al.
patent: 5290959 (1994-03-01), Rice
patent: 5522995 (1996-06-01), Cockrem
patent: 5571403 (1996-11-01), Scott et al.

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