Method for removing contaminants from contaminated materials suc

Details Method for removing contaminants from contaminated materials suc Method for removing contaminants from contaminated materials suc

1992-01-22

1993-09-28

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With heating or cooling of material

241 24, 241DIG10, 209 10, 134 251, B02C 1108

Patent

active

052480984

ABSTRACT:
A method for removing contaminants from contaminated material such as contaminated soils and contaminated construction debris comprises the following steps: Separating the materials into a first fraction having particles of a size greater than 50 mm and a second fraction comprising remaining particles; breaking up the particles of the first fraction into particles of a size smaller than 50 mm; combining the particles of a size smaller than 50 mm and the second fraction to a combined fraction; drying the combined fraction at a temperature of between 100.degree. to 130.degree. C.; breaking up the combined fraction into particles of a size smaller than 2 mm; and subjecting the particles of a size smaller than 2 mm to a distillation process at a process temperature from between 300.degree. to 600.degree. C. Preferably, the distillation process is a vacuum distillation process with a process temperature of between 350.degree. to 450.degree. C.

REFERENCES:
patent: 4213793 (1980-07-01), Starbuck
patent: 4750436 (1988-06-01), Maury et al.
patent: 4801384 (1989-01-01), Steiner
patent: 4881475 (1989-11-01), De Leur
patent: 4975198 (1990-12-01), Steiner
patent: 5056541 (1991-10-01), Schade et al.
patent: 5111756 (1992-05-01), Anderson
patent: 5143305 (1992-09-01), Dunham et al.

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