Sulfonamidothiadiazoles, metal complexes thereof, and solutions

Details Sulfonamidothiadiazoles, metal complexes thereof, and solutions Sulfonamidothiadiazoles, metal complexes thereof, and solutions

1978-05-24

1981-02-17

Rollins, Alton D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

252184, 423 24, 423100, 423139, 548141, C07D28512, C22B 1512, C22B 1920, C22B 2300

Patent

active

042516641

ABSTRACT:
Certain sulfonamidothiadiazoles, metal complexes thereof and solutions of said compounds in essentially water-immiscible, liquid hydrocarbon solvents are disclosed. The sulfonamidothiadiazoles have the general structural formula: ##STR1## wherein R and A are as defined in the specification and claims hereof. Particular metal values are recovered from their aqueous solutions by using sulfonamidothiadiazoles dissolved in essentially water-immiscible, liquid hydrocarbon solvents. The extraction process involves contacting the metal value containing aqueous solution with the solution of the sulfonamidothiadiazole in essentially water-immiscible, liquid hydrocarbon solvent and stripping the metal from the loaded organic phase.

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