| 摘要 |
A composite sorptive material in the form of a self-supporting, fluid-permeable sheet of fibrous material having distributed throughout a powdered sorbent material. The sheets provide a simple and convenient way of handling and using powdered sorbent materials. Suitable powdered sorbent materials include activated charcoal and powdered sorbent foam which has been prepared by the pyrolysis of an aromatic nitrogen-containing compound.
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