Machine coolant treatment method

Details Machine coolant treatment method Machine coolant treatment method

1994-04-21

1997-02-04

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210688, 210693, 210776, 210805, 210806, B01D 1500

Patent

active

055994571

ABSTRACT:
A filtering apparatus and filtering method for removing free-oils, particulate matter and dissolved heavy metals from a machine coolant by withdrawing a portion of the machine coolant from a machine coolant reservoir through a skimmer assembly and thereafter passing the machine coolant through a filter assembly containing an oil absorbent, a particulate matter filter and a filter element having metal particles bound together in a porous metal sponge-like structure.

REFERENCES:
patent: 2297817 (1942-10-01), Truxell et al.
patent: 3890254 (1975-06-01), Guthrie
patent: 4434054 (1984-02-01), Livesey et al.
patent: 4517069 (1985-05-01), Harney
patent: 4687553 (1987-08-01), Solomon
patent: 4975230 (1990-12-01), Pinkhasov
patent: 5104529 (1992-04-01), Becker
patent: 5151222 (1992-09-01), Ruffoni
patent: 5185381 (1993-02-01), Ruffoni

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