Method for detoxifying coal-tar deposits

Fuel and related compositions – Carbonized component

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Details

44621, 44628, 208 13, 208 44, C10L 500, C10C 100

Patent

active

056560419

ABSTRACT:
In a process for detoxifying a coal-tar deposit, effective amounts of carbon and a calcium oxide containing substance are added at a mixing station to at least a portion of the coal-tar deposit. The reaction mixture thus formed is mixed at a temperature of about 70.degree. F. to 130.degree. F. for a time sufficient to detoxify it and convert it into a non-hazardous reaction product. The coal-tar deposit may be either a substantially homogeneous coal-tar or a heterogeneous coal-tar contaminated substrate. The mixing station site may be either subsurface or surface and may include a container. The non-hazardous reaction product may be separated into small particles, suitable as fuel, and large particles, suitable as safe fill.

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