Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1973-10-09
1976-03-09
Tufariello, T. M.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
2041292, 204195R, C25F 500, C25F 300
Patent
active
039430430
ABSTRACT:
Apparatus and methods are disclosed for the selective dissolution of a predetermined metal from, for example, a metal-metal combination. The metal or the metal-metal combination is made the working electrode of an electrolytic cell whose other electrode is electrolytically inert in the cell in use. The working electrode is held at a substantially constant electrical potential relative to a standard calomel electrode, and this potential and the pH of the electrolyte are selected such that the electrical energy passing through the cell during a selected time period is dependent on the amount of the predetermined metal electrolytically dissolved and substantially independent of any other metal which may be present.
REFERENCES:
patent: 1845231 (1932-02-01), Browning
patent: 2319196 (1943-05-01), Anderson et al.
patent: 2457234 (1948-12-01), Herbert et al.
patent: 2840521 (1958-06-01), Wasserman
patent: 3826724 (1974-07-01), Riggs, Jr. et al.
New Instrumental Methods in Electrochemistry by Paul Delahay, 1954, pp. 22-23, 286-289, 312-315, 391-407.
Billington Richard W.
Drewett Robin
Tufariello T. M.
Wilkinson Sword Limited
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