STUDY OF THE MOLECULAR STRUCTURE OF HEAVY-METAL ION AND DIETHYLDITHIOCARBAMATE PRECIPITATES

摘要

Experimental data of studies of the molecular structure of precipitates of copper, nickel, cobalt, and zinc diethyldithiocarbamates (DEDTC) by infrared spectroscopy and differential scanning calorimetry methods are given. A series of Me-S bonding strengths of the investigated metal ions with DEDTC was established: Ni > Cu > Co > Zn. It is shown that the molecular structure of the precipitate affects its processing properties during filtration, formation, and reextraction from the froth product. The data of the studies permit a qualitative evaluation of the possibility of selective extraction of metals from precipitates obtained during ion flotation.