Liquid purification or separation – With heater or heat exchanger – Flow line connected in series with distinct separator
Patent
1990-04-23
1991-04-09
Wyse, Tom
Liquid purification or separation
With heater or heat exchanger
Flow line connected in series with distinct separator
210202, 210299, 2105121, 210540, C02F 140, B01D 17032
Patent
active
050062395
ABSTRACT:
A novel apparatus removes hydrophobic oil from solid particulates in oily sludge waste such as waste material from oil refineries, drilling fluids or muds brines, and other chemical wastes which have solid particulates contaminated with oil. The process involves separation of different components of the sludge on the basis of their size, density and physio-chemical differences. Coarse particulates are removed with the use of screening systems such as sieve bends or vibro-sieves. Oil is removed from these coarse particulates with water rinsing. Oil is removed from fine particles by gravity separation, which separates the sludge into high and low density fractions. Froth flotation is used to remove hydrophilic materials from the high density fraction. Froth flotation may involve the use of frothing agents, surface modifying agents and surfactants, the selection of which generally depends on the composition of the sludge, the physical and chemical characteristics of the sludge, and the desired separation composition.
REFERENCES:
patent: 2759607 (1956-08-01), Boyd et al.
patent: 2983677 (1961-05-01), Boyd et al.
patent: 3407934 (1968-10-01), Ejecfors
patent: 3487003 (1969-12-01), Baillie et al.
patent: 3502575 (1970-03-01), Hepp et al.
patent: 3707464 (1972-12-01), Burns et al.
patent: 3723309 (1973-03-01), Garcia
patent: 3764008 (1973-10-01), Darley et al.
patent: 3864251 (1975-02-01), Cymbalisty
patent: 3884803 (1975-05-01), Traylor
patent: 4001114 (1977-01-01), Joseph et al.
patent: 4203837 (1980-05-01), Hoge et al.
patent: 4432887 (1984-02-01), Zajic et al.
patent: 4555345 (1985-11-01), Yoshida
F. F. Aplan, "Flotation," Encyclopedia of Chemical Technology, Kirk-Othmer, vol. 10, 3rd ed, 1980, pp. 523-547.
J. Leja, "An Outline of a Mineral Flotation System, Definitions," Surface Chemistry of Froth Flotation, pp. 4-14.
A. M. Gaudin, H. L. Miaw, & H. R. Spedden, "Native Floatability and Crystal Structure," 2nd Int. Congress Surf. Chem. 1957, pp. 202-219.
R. R. Klimpel, "Froth Flotation: The Kinetic Approach".
W. L. Chen, "Cyclones with Plain Water for Fine-Coal Cleaning", Coal Age, Aug. 1964, pp. 90-92.
Dorr-Oliver, DSM.RTM. Screens for the Food Industry (1980) Brochure.
Tetra Technologies Inc.
Wyse Tom
LandOfFree
apparatus for treatment of oily sludge does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with apparatus for treatment of oily sludge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and apparatus for treatment of oily sludge will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2032768