Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-09-29
1980-05-06
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 23F, 134 10, B01D 1300
Patent
active
042016649
ABSTRACT:
A portion of the oil-in-water emulsion used as a lubricant/coolant in the shaping of metal articles such as containers is subjected to a reverse osmosis or ultrafiltration process to concentrate the oil portion and separate a water permeate. The oil concentrate is reincorporated in the remaining portion of the coolant and the permeate is used as rinse water to remove oil residues retained on the article from the metal shaping operation. The coolant is then reconstituted with the oil residue rinsed from the article.
REFERENCES:
patent: 3228876 (1966-01-01), Mahon
patent: 3615024 (1971-10-01), Michaels
patent: 3749657 (1973-07-01), Bras et al.
patent: 3795609 (1974-03-01), Hill et al.
patent: 3847804 (1974-11-01), DelPico
patent: 3919075 (1975-11-01), Parc et al.
patent: 3973987 (1976-08-01), Hewitt et al.
patent: 3977967 (1976-08-01), Trulson et al.
Goldsmith et al., "Soluble Oil Waste Treatment Using Ultrafiltration", presented at 46th WHF.WPCF, Cleveland, 33 pp., Oct. 4, 1973.
Dittmann William A.
Hart Charles N.
Kerwin Joseph E.
Sadowski David R.
Shapiro Paul
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