铅碱性精炼废渣的资源化利用研究

介绍了铅碱性精炼废渣资源化利用工艺流程,探讨了该过程的工艺条件,讨论了有关影响因素.实验结果表明,经脱砷和脱铅后,Sb以锑精矿形式产出,可作为炼锑的原料;Pb以PbCl2或铅渣形式、Sn以锡渣形式产出,其品位较高,可作Pb或Sn冶金的原料;该工艺具有化工试剂消耗少、综合利用率高、污染小、易于实现大规模工业化等优点.

EXPLORING THE POSSIBILITY OF RECYCLING THE LEAD ALKALESCENCY THROUGH REFINING THE MINING SLAG

The present paper aims at exploring a new approach to the reutilization of lead basic reefing slag through wet processing in hoping to recycle the lead alkalescency content in the mining slag. To achieve this purpose, the authors have investigated the current technological conditions in delead and dearsenic processing and made detailed analysis of alkalescency solution laden with arsenic and lead content as well as the influential factors involved. The experimental results gained show that it is possible to obtain NaSb(OH) 6 through refining of the slag concerned. The product obtained from this recycling process could be used as cheap raw materials for antimony smelting plants. Pb and Sn gained from the experiment can be used to produce PbCl 2 while the arsenic and lead residue with rich Sn or Pb content can be used as raw material for lead and tin metallurgy. Since the new technological process introduced in this paper is environment friendly with little pollution, it has a great potentiality for further comprehensive development in industrial production. It can also be of great significance both to the reutilization of mining slag produced in lead refining and the elimination of environmental pollution caused by the heaping of such slag.