Cleaning and liquid contact with solids – Processes – Work handled in bulk or groups
Patent
1992-06-04
1994-02-22
Morris, Theodore
Cleaning and liquid contact with solids
Processes
Work handled in bulk or groups
134 5, 134 23, 134 19, 134 10, 210660, B08B 304, B01J 3900, B01J 3916
Patent
active
052883302
ABSTRACT:
A method and apparatus for removing contaminants, including hydrocarbon and metal, from contaminated particulate material, such as gravel, soil, and the like. Initially, contaminants are removed by contact with water at a temperature higher than a melting temperature of the contaminants to remove them by melting. The removed contaminants are then subjected to specific gravity separation in water and filtration, including ion exchange and activated carbon filtration.
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Comprehensive Inorganic Chemistry vol. 2, Ch 18 p. 127 Published by Pergamon Press 1973, chapter written by E. W. Abel.
Ballard Robert B.
Shenoi Noel A.
Dunn Jr. Thomas G.
Morris Theodore
Tuboscope Vetco International Inc.
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