Method and apparatus for the purification of oil-containing and

Details Method and apparatus for the purification of oil-containing and Method and apparatus for the purification of oil-containing and

1998-03-25

1999-10-12

Bennett, Henry

Drying and gas or vapor contact with solids

Process

Gas or vapor pressure is subatmospheric

34425, F26B 504

Patent

active

059640456

ABSTRACT:
In a method for the cleaning of oil- and water-containing roll scale sludge, the roll scale sludge is introduced to a heatable treatment region 10 for a first drying step. In addition to the first drying step, a second drying step is provided for with which the roll scale sludge is subjected to a vacuum drying 14, 15. For this reason, the purification of the oil- and water-containing roll scale sludge is improved without additional auxiliary materials using only pure thermal energy in an effective manner which is applicable to large-scale commercial applications.

REFERENCES:
patent: 3811200 (1974-05-01), Hager
patent: 3931012 (1976-01-01), Huse
patent: 4911930 (1990-03-01), Gergely et al.
patent: 5122233 (1992-06-01), Zampieri
patent: 5263263 (1993-11-01), Gheorghiu et al.
patent: 5490907 (1996-02-01), Weinwurm et al.
"Thermocon-Thermische Reinigung von kontaminierten Schuttguttern" (Thermocon-Thermal Purification of Contaminated Bulk Products) company brochure of Lobbe Umwelttechnik GmbH & Co., Iserlohn, Germany, Jun. 1996.

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