Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1978-02-09
1979-10-30
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
204DIG11, B01J 110
Patent
active
041727754
ABSTRACT:
Mixtures of metals are separated by forming salts of the metals which exhibit photoredox activity with an anion selected to provide insoluble salts at one oxidation state and soluble salts at another oxidation state, forming a solution of these salts with a solvent selected to permit a difference in solubility of salts dissolved at different oxidation salts and to be nonreactive with the nonsoluble salts, irradiating the solution with light at a wavelength which changes the oxidation state of the metal ion most susceptive to a change in oxidation state, and separating the insoluble salt formed thereby from the solution.
REFERENCES:
patent: 3923619 (1975-12-01), DePoorter et al.
patent: 4131527 (1978-12-01), Friedman et al.
Anschel, IBM Technical Disclosure Bulletin, (Jul. 1972), vol. 15, No. 2, 603-604.
McDonnell Thomas
Schneider Philip
Sciascia R. S.
The United States of America as represented by the Secretary of
Williams Howard S.
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