Regeneration of chelated polyvalent metal solutions by controlle

Details Regeneration of chelated polyvalent metal solutions by controlle Regeneration of chelated polyvalent metal solutions by controlle

1988-09-28

1989-05-23

Sever, Frank

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

204129, 204130, 204131, 423226, C01B 1704

Patent

active

048329371

ABSTRACT:
Electrochemical regeneration in an electrochemical cell of spent scrubbing solutions containing polvalent metal chelates is accomplished without substantial degradation of the chelate by controlling the anolyte pH and maintaining the anode potential of the cell above the oxidation potential of the polyvalent metal chelate but below the oxidation potential of the chelate portion of the polyvalent metal chelate.

REFERENCES:
patent: 4436712 (1984-04-01), Olson
patent: 4436714 (1984-03-01), Olson
patent: 4443423 (1984-04-01), Olson
patent: 4443424 (1984-04-01), Olson
patent: 4643886 (1987-02-01), Chang et al.

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