Purification of chlorophenolic derived compounds
AssigneeUop LLC
InventorsEdward M. Geiser, Russell W. Johnson
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Abstract
Chlorophenolic derived compounds which may be used as herbicides and which contain a contaminant comprising 2,3,7,8-tetrachlorodibenzo-p-dioxin may be purified by subjecting a solution of the compound dissolved in a protic solvent to the emission from a light source having a wave length of from about 180 to about 350 nanometers, such as a laser beam, whereby the contaminant will be decomposed.
Claims10
A process for the removal of a contaminant comprising 2,3,-7,8-tetrachlorodibenzo-p-dioxin from a chlorophenolic derived compound which comprises subjecting a solution of said compound dissolved in a protic solvent to the emission from a light source having a wave length in the range of from about 180 to about 350 nanometers, and recovering the purified chlorophenolic derived compound.
Dependencies are inferred from the claim text.