Concentrating evaporators – Processes – Involving waste liquid
Reexamination Certificate
2002-05-16
2008-07-08
Manoharan, Virginia (Department: 1797)
Concentrating evaporators
Processes
Involving waste liquid
C159S016300, C159S025100, C159SDIG020, C175S066000, C208S188000, C034S498000
Reexamination Certificate
active
07396433
ABSTRACT:
The process separates oil and water from a sludge mixture by directing the sludge mixture into a rapidly rotating friction dryer having a cylindrical chamber with a smooth inner surface and a rotating rotor having rotor arms extending into closely spaced relation to the inner surface of the chamber. The rotor is rapidly rotated to form an annular bed of the sludge material while moving the material particles in the mixture axially and tangentially and while frictionally generating heat between the rotor arms and the sludge material sufficient to evaporate the water in the sludge material to steam. At the same time, the oil in the mixture is heated by the steam and evaporated at a temperature below the normal atmospheric boiling point of the oil. Thereafter, the separated evaporated oil and the steam are removed from the chamber.
REFERENCES:
patent: 3150862 (1964-09-01), Grabauskas
patent: 3684732 (1972-08-01), Grabauskas
patent: 4054507 (1977-10-01), Pouska
patent: 4101414 (1978-07-01), Kim et al.
patent: 4208134 (1980-06-01), Whittle
patent: 4222988 (1980-09-01), Barthel
patent: 4400134 (1983-08-01), Sweeney
patent: 4422901 (1983-12-01), Karnofsky
patent: 4589215 (1986-05-01), Iwasaki et al.
patent: 4623448 (1986-11-01), O'Connell et al.
patent: 5200066 (1993-04-01), Jorgensen
patent: 5480566 (1996-01-01), Strand
patent: 5915815 (1999-06-01), Moore et al.
patent: 6004455 (1999-12-01), Rendall
patent: 6120650 (2000-09-01), Nye et al.
patent: 0 611 937 (1994-08-01), None
patent: WO 95/18946 (1995-07-01), None
Database WPI, Week 200232, Derwent Publications Ltd., London, GB; JP 20 02071269 A, Mar. 2002.
L.F. Fieser, 3rdEdition, “Experiments in Organic Chemistry”,1955, pp. 56-60.
Carella Byrne Bain et al
Hand Francis C.
Manoharan Virginia
Thermtech AS
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