Oil re-refining method and apparatus

Details Oil re-refining method and apparatus Oil re-refining method and apparatus

1996-06-07

1998-09-29

Bhat, Nina

Mineral oils: processes and products

Refining

Purifying used oil

208352, 208357, 208361, 208366, 196102, 196114, 196127, 196132, 196141, C10M17500, B01D 100, B01D 114

Patent

active

058142070

ABSTRACT:
A method and apparatus for re-refining used oil, in which the used oil is processed in at least one cyclonic vacuum evaporator comprising a void evaporation chamber (4) into which feedstock is tangentially injected, and in which a fraction of the feedstock is condensed in a spray condenser (7) communicating with the evaporation chamber (4).

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patent: 4131538 (1978-12-01), Rose et al.
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patent: 4360420 (1982-11-01), Fletcher et al.
patent: 4375386 (1983-03-01), Windham
patent: 4731164 (1988-03-01), Williamson
patent: 4770747 (1988-09-01), Muller
patent: 4904347 (1990-02-01), Cros et al.
patent: 4941330 (1990-07-01), Williamson
patent: 5632867 (1997-05-01), Davis et al.

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