Patents Represented by Attorney William McClain

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  • Method for extraction solvent recovery
    Patent number: 4548701
    Abstract: A method for recovery of extraction solvent from a dissolved solute wherein halogen gas evolution and halogen compound retention in the solute are minimized comprises heating a solution of a halogenated organic solvent and the extracted solute in the presence of an ammonium, Group I metal or Group II metal salt of an acid of carbon number 1 to 6, such as ammonium bicarbonate, ammonium carbonate, ammonium formate, sodium carbonate, sodium formate, or calcium formate, to recover the solvent and the solute.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: October 22, 1985
    Assignee: Amoco Corporation
    Inventor: William F. Wolff