一、前言为了消除火法炼铅的污染,国内外对湿法炼铅的研究日益重视。国内许多单位的研究都已取得较好的进展。近年来,北京化工冶金研究院提出了一项工艺:方铅矿先用NH_4HCO_3溶液浸出,使Pbs转化为pbco_3,并得到部份元素硫,PbCO_3继而入鼓风炉熔炼或采用湿法冶金的方法处理[2]。本文对Pb—S—C—H_2O系进行了热力学分析,计算并绘制出 First, the foreword In order to eliminate lead pyrolysis fire pollution, domestic and foreign research on wet lead-mining increasingly attention. Many domestic research institutes have made good progress. In recent years, Beijing Chemical Metallurgy Research Institute proposed a process: galena leaching with NH_4HCO_3 solution, Pbs into pbco_3 and get some of the elemental sulfur, PbCO_3 and then into the blast furnace melting or hydrometallurgical treatment [ 2]. In this paper, the thermodynamic analysis of Pb-S-C-H_2O series was calculated, calculated and plotted