ELECTROFLOTATION EXTRACTION OF POORLY SOLUBE COPPER COMPOUNDS IN THE PRESENCE OF ORGANIC COMPLEXING AGENTS
N the course of the work a number of experimental examinations were carried out, concerning the extraction of poorly soluble copper compound in the presence of complexing agent tartrate-ion and of the organic additives (Zestron и Vigon), which are used in the PCB production. It was established that at рН = 9 the maximum degree of the copper compounds extraction doesn’t exceed 12% after 20 minutes of electroflotation. Nevertheless, the presence of cleaning agents Vigon in the solution permits to increase the efficiency of the process by 2 times (a(Cu2+) = 25 %). It was also established that the maximum degree of extraction of copper from tartrate systems is reached by adding 0,2 g/l Septapav (a(Сu2+) = 89% at τ = 20 min) to the solution, and organic additives Zestron и Vigon contribute to the suppression of the electroflotation extraction of copper compound