| 摘要 |
A method of cleaning debris, which involves the separation of heavy metals and oils, simultaneously, from the debris, which debris is primarily an inert substance, such as soil from a coking plant. The process employs acetic anhydride, which is mixed with the debris, for removing any moisture. After the addition of acetic anhydride, aqueous acetic acid is distilled off. The remaining distilland is then filtered to remove the heavy metals and oils from the debris.
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