The paper is devoted to the efficiency of the valuable components extraction from the waste of non-ferrous metals, gathered at the radio engineering enterprises. Indium concentrating from the poor solder alloys using electrolysis in liquid melt of zinc chloride with addition of potassium chloride and sodium chloride is studied. It was shown that membraneous electrolysis makes unnecessary an indium chloride usage as a promotor component. It was determined that electrolysis through double membrane with an electrolyte film allows to increase indium concentration in the cathode. By doing so the biggest part of impurity elements is collected at a bipolar electrode.

1. Lebedev I. S., Dyakov V. E., Terebenin A. N. Kompleksnaya metallurgiya olova. (Complex metallurgy of tin). Novosibirsk, 2004. 548 p.

2. Certificate of authorship 1543845 USSR. Sposob izvlecheniya pripoya iz loma, preimushchestvenno iz pechatnykh plat, i ustroystvo ego osushchestvleniya (Method and devices of solder alloy extraction from metal junk, mainly from circuit plate). A. V. Dolgov, G. N. Golovizina, V. E. Dyakov et al. Otkrytiya, izobreteniya, promyshlennye obraztsy, tovarnye znaki – Discovery, invention, industrial samples, trademarks. 1990. No. 6. p. 266.

3. Omelchuk A. A., Gorbach V. N., Zarubitskiy O. G., Dyakov V. E. Ukr. khim. Zhurn. - Ukrainian Chemical Journal.1993. Part. 59, No. 6. pp. 604-608.

4. Certificate of authorship 453448 USSR. Elektrolizer dlya polucheniya legkoplavkogo metalla (Electrolyzer for low-melting metal obtaining). V. E. Dyakov, V. D. Nikitina, Yu. S. Koryukov, M. A. Yakovlev. Otkrytiya, izobreteniya, promyshlennye obraztsy, tovarnye znaki – Discovery, invention, industrial samples, trademarks. 1975. No, 46. p. 130.

5. Zarubitskiy O. G., Dugelnyy A. P., Omelchuk A. A. et al. Tsvetnye metally – Non-ferrous Metals. 1991. No. 3. pp. 30-32.