C - Chemistry – Metallurgy – 25 – C
Patent
C - Chemistry, Metallurgy
25
C
321/100, 204/164
C25C 1/00 (2006.01) C25C 7/06 (2006.01)
Patent
CA 1053608
ABSTRACT OF THE DISCLOSURE: A method for electric extraction of non-ferrous metals from solutions. The process is effected by applying reversive electric current of different duration for electric extraction and dissolution. The process is conducted simultaneously, in two groups of electrolytic bathes and the electric current for the dissolution for each group of electrolytic bathes is provided by the electric current for electric extraction in the other group of electrolytic bathes. An electric system for carrying out the method comprises a controllable current rectifier and a control block, wherein there is provided a second controllable current rectifier, and each of both controllable current rectifiers is connected to a separate group of the electrolytic bathes through a diode switch. Both groups of electrolytic bathes and both control- lable current rectifiers are connected in series and in opposite direction one to the other and the common diode switch is connect- ed in its conduction direction between a common point of both groups of electrolytic bathes and a common point of the unipolar outputs of the controllable current rectifiers. In parallel and in the same direction as the controllable current rectifiers, there are connected correspondingly controllable thyristor switches for direct current. The control block is common for the controllable current rectifiers and the switches.
231107
Alexandrov Alexander M.
Draganov Nedelcho D.
Enchev Ivan D.
Genevski Vladimir V.
Haralampiev Georgi A.
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