损失在别洛乌索夫选矿厂尾矿中的有价组分的数量是相当可观的,计有(%):18—20有色金属(总量)、25—30金、6—7银以及40—45%的BaSO_4。其中大部分都损失在锌浮选尾矿中。根据化学分析结果,在锌浮选尾矿的代表性样品中含有(%):0.79Zn、0.22Pb、0.11Cu、11.7BaSO_4和24.4Fe。就粒度来说,这些尾矿是相当细的(-0.074毫米粒级占96.3%)。尾矿中的有色金属硫化物36—38%都以紧密共生的连生体形式存在,87%的黄铁矿以单体颗粒形式存在(表 The loss of the quantity of valuable components in the tailings of the Belo Horizonte concentrator is considerable (%): 18-20 Non-ferrous metals (total), 25-30 gold, 6-7 silver and 40-45% BaSO 4. Most of them are lost in zinc flotation tailings. Based on the results of the chemical analysis, (%): 0.79Zn, 0.22Pb, 0.11Cu, 11.7BaSO 4 and 24.4Fe were contained in the representative samples of zinc flotation tailings. In terms of particle size, these tailings are quite fine (96.0% at -0.074 mm). 36-38% of the non-ferrous sulphides in the tailings exist in a closely intergrown symbiotic form, with 87% of pyrite present as monomelic particles