Electrolytic metal recovery system

Details Electrolytic metal recovery system Electrolytic metal recovery system

1993-02-04

1994-05-10

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204109, C25C 120, C25C 706

Patent

active

053104668

ABSTRACT:
The system is operable in either a standby mode, having associated with it a predetermined standby current level, or a plating mode, having associated with it a predetermined plating current level. The system also has associated with it a cut-off current level at which the system is transferred from the plating mode to the standby mode, and a come-on current level at which the system is transferred from the standby mode to the plating mode. A variable voltage generator impresses a voltage across the electrolytic solution, and this voltage is monitored by a microcontroller. The voltage for each mode is the voltage which will produce the predetermined current for that mode. When the microcontroller determines that the voltage has remained stable, that is, with a deviation less than .+-.5% for a predetermined period of one minute, then the microcontroller will provide a signal to the voltage generator to initiate a change of mode.

REFERENCES:
patent: 4612102 (1986-09-01), Brimo et al.
patent: 4619749 (1986-10-01), Nusbaum
patent: 4675085 (1987-06-01), Vasquez
patent: 4728407 (1988-03-01), Nusbaum
patent: 4762598 (1988-08-01), Drew
patent: 4776931 (1988-10-01), Hardy
patent: 5007993 (1991-04-01), Hull et al.
patent: 5102513 (1992-04-01), Pelkus
patent: 5181154 (1993-01-01), Haupt et al.

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