ПОЛІПРОПІЛЕНОВИЙ БІПОЛЯРНИЙ ЕЛЕКТРОД ДЛЯ ЕЛЕКТРОЕКСТРАКЦІЇ КОБАЛЬТУ

Abstract

In the article the polypropylene bipolar electrode is offered for the cobalt extraction from low concentration solutions. Research object: electrolyzer with polypropylene bipolar electrode. Purpose of the study: research of cobalt electroextracton on the polypropylene bipolar electrode from low concentrated solutions. Research methods: stationary and non-stationary voltamperometry. measuring method of micro hardness. It was established that application of bipolar electrolyzer provides high purity electro-extraction of metal in the process of cobalt extraction. Using of polypropylene bipolar electrode provides lightness and plasticity that is not realized in the case of similar metallic. Received fallouts have a microhardness from 350 to 450 kg/мм2, depending on ions concentration of metal in electrolyte. Fallouts with maximal microhardness - homogeneous, fine crystalline with narrow distribution after the sizes of 5 - 8 mkm. The maximal values of extraction coefficient and current output from diluted solutions of their salts set 74 аЫ 76 % (respectively) at the rate of bipolar movement 1,5 спі/miin For an extraction 1 kg of cobalt it is necessary 20 kW4i, the process is effective and does not require high energy costs. The results of the article can be implemented in technology of wastewater treatment from heavy metal ions at galvanic productions. In the future it is planned to study the possibility of application polypropylene bipolar electrode for metal extraction. KEY WORDS: POLYPROPYLENE BIPOLAR ELECTRODE, COBALT ELECTOEXTRACTION, LOW CONCENTRATION SOLUTIONS.