Catalytic oxidation of peroxy salts

Details Catalytic oxidation of peroxy salts Catalytic oxidation of peroxy salts

2007-07-03

2007-07-03

Anthony, Joseph D. (Department: 1714)

Liquid purification or separation

Processes

Chemical treatment

C210S758000, C210S763000, C210S764000, C210S753000, C210S754000, C210S755000, C210S756000, C252S186430, C252S186330, C252S186210, C252S187240

Reexamination Certificate

active

10513651

ABSTRACT:
Transition metal ions have the ability to increase the oxidation performance of the inorganic peroxy salts at room temperature by possibly lowering their activation energy or by producing more reactive free radicals. When two transition metal salts are used together to decompose dipersulfate, it provides synergistic oxidation activity, better than obtained by dipersulfate or dipersulfate with either copper or zinc alone. The transition metals mentioned are the water soluble salts of copper and zinc. Oxidation performance of sodium dipersulface in presence of catalytic amount of copper and zinc salts was determined by measuring the destruction of crystal violet dye at a wavelength of 589 nm.

REFERENCES:
patent: 3953545 (1976-04-01), Stoy
patent: 4007262 (1977-02-01), Bowers
patent: 5373025 (1994-12-01), Gay
patent: 5478482 (1995-12-01), Jones et al.
patent: 6120698 (2000-09-01), Rounds et al.

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