Fluid handling – Processes – With control of flow by a condition or characteristic of a...
Patent
1982-09-30
1984-11-20
Smith, William
Fluid handling
Processes
With control of flow by a condition or characteristic of a...
134 2, 134 4, 134 42, 210924, 210925, B08B 700
Patent
active
044837160
ABSTRACT:
Chemicals spilled on porous surfaces may be removed therefrom by applying to the spill site a poultice in the form of a slurry or paste of finely divided particulate material dispersed in a volatile solvent in which the spilled chemical substance is soluble, allowing the solvent to be absorbed into the porous substrate. The poultice is then allowed to dry, thereby effecting a wicking action causing extraction of the chemical substance from the substrate into the poultice.
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Hastings K. M.
Smith William
The Franklin Institute
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