应用同时平衡原理和质量平衡原理对SnC1-NH C1-HC1-H O体系进行了热力学分析和计算，对于无法收集的相关（NH ）zSnC1e的热力学数据进行了估算，在此基础上绘制了SnC1-NH C1-HC1-H O体系在标准状态下各相关物种和pH 之间的关系曲线。结果表明，溶液中的总铵浓度和体系的pH 值是影响（NH）2SnC1e或Sn（0H） 存在的重要参数。在该体系中，增大体系的酸度到6 mol/I 以上，体系中的Sn“ 既以（NH）2SnC1s形式沉淀出来，这就为直接由含锡原料提取纯（NH） SnC1，并用以取代SnC1来制备ATO或IT0粉体提供了理论依据。

氯氧化锑Sh4O5Cl2同卤素配合，具有优异的阻燃协效性能。与三氧化二锑、娣酸钠等相比。它迂能降低彰色塑抖中的色料用量，对高聚物的逢明性影响较小直接以台锑复杂矿的氯化浸出液为原料，经还原后水解，再进一步除杂，从而制得高纯度、高白度的微细Sh4O5Cl2。实验结果表明提高水解搅拌速度可显著减小产品的粒径；混合毒液A（有机酸与无机酸酌混合物）对水解产物有显著的除杂效果。能提高Sh4O5Cl2的白度，细化粉末、增强产品的光稳定性；经除杂处理后的檄细粉末，平均粗径为4.35μm，白度为96.6，纯度为99.85%，产物颗粒为椭球形；本工艺简便易行，生产Sh4O5Cl2的成本比生产三氧化二锑、锑酸钠的成丰低，具有广阔的工业应用前景

Large and uniform tetrapod-like ZnO whiskers(T-ZnO)were prepared from waste hot dipping zinc by vapor oxidation and examined by means of X-ray diffraction and ICP AES analysis and scanning electron microscope. The products are pure hexagonal wurtzite crystals with tetrapod shape and edge size of center body 5-6 m and needie length of 100-130"m. The size and shape of ZnO particles are fully controlled by the growth conditioas and TZn0 can be obtained only at 850-1 000℃ and total gas flow rate ranging from 40 to 250 L •h-1 in which the size of the T-ZnO particles varies slightly with temperature. The process of the formation of T-ZnO is that T-ZnO may nucleate at the initial stage with a complete tetrapod shape and develop to the large size. but not the process of preferential growth of octahedral nuclei and subsequent growth of the needles. The experiment presents a new meth-od to prepare T-ZnO economically by using the waste hot dipping zinc.

提出一种无二氧化硫排放的有色金属冶炼方珐。将有色金属硫化矿或硫化矿精矿或它们的古税物料与造镶剂、证原剂、添加剂軎碎混合，然后在1000-1300"C的温度下进行证原造锍熔炼。诙方法在无二氧化硫生成的情况下一步炼制有色金属粗金属或合金，产出镶、炉渣和烟尘。同时回收金、银等贵金属，具有流程简单、回收率高、成车低等优点。此方法适合于铅、锑、铋的单一硫化矿或精矿、铅一锑、铅一锌、及铜一铅一锌及铜一锌复杂硫化矿或精矿以及这些金属的古斑富集物的无污染冶炼，更适合从古金黄铁矿烧渣中回收贵金属。

介绍了一种由缸精矿直接制取多种缸品的冶金化工新工艺，该工艺包括氯化浸出、净化除杂、水解沉铋及铋品制取等过程，与制取铋化学品的常规方法比较，新方法具有流程短，污染少；金属回收率高，综合利用好等显著特点。

提出了一种锌、铟清洁生产工艺，该方法在保留传统湿法炼锌主体流程的前提下，利用铁闪锌矿精矿的铁资源、部分锌源及锰矿的锰源，直接制备高档次的锰锌软磁铁氧体材料。工艺过程包括：中浸渣高温高酸浸出、还原及除铜、萃取提铟、初步净化、深度净化及开路锌、共沉淀、铁氧体制备等。本方法取消了湿法炼锌流程中的除铁过程，作到铁渣和SO的零排放，简化了湿法炼锌提铟流程，大幅度提高铟锌回收率；同时解决了“直接共沉淀法”铁源的长期供应问题。

According to the principles of simultaneous chemical equilibrium and electronic charge neutrality, the thermodynamics of Au-NH4C1-NH3-H2O system was studied by using the exponential computation method and through MATLAB programming, and the solid figure of potential-c(NH4C1)-c(NH4OH) was drawn. The results show that when the sum concentration of Au+and Au3+is equal to 5×10-5 mol/L, φ(Au+/Au) is about-0.2 V; when the sum comes up to 0.5 mol/L, the value of φ(Au+/Au) increases to 0.2 V. In this case, φ(O2/OH-) is as high as 0.7 V. This means that it is feasible to extract gold in this system. In addition, to predict the feasibility of reducing gold from the Au(I)-NH4Cl-NH3-H2O system with copper or zinc powder, the solid figures of potential-c(NH4CI)-c(NH4OH) for both systems of Cu-NH4C1-NH3-H20 and Zn-NH4C1-NH3-H2O were also drawn. The results indicate that both copper and zinc powders can reduce Au~ into metal gold, and zinc powder can also reduce H20 into H2, while copper powder can not. The leaching results of a cuprous gold ore show that the extraction of gold can reach 80% in this system. The preliminary results of reduction with copper and zinc powders show that with deoxygenizing, the reduction effects are relatively good.

用NH3-NI~C1溶藏浸出锌焙砂铸锌渣灰铅厂蛔灰。净化后电积锌。浸出过程在自然温度下进行，浸出液几乎不需要除铁。净化豫杂温度低，陈镉钴窖易电积时电流效卓93.78‰。电能消耗2600~ 2750kW·h/t锌，比传统的ZnSO·蓓渣电积锌节约约15%的电髓。且电锌质量运忧于爵话要求。

以铁屑、软锰矿和氧化锌烟灰为原料，进行了l0kg，次规模的直接法制取低功耗软磁共沉粉的实验室扩大试验。实验结果表明：共沉粉杂质元素含量低，配比准确，活性好；经铁氧体工艺试验证明，所制锰锌软磁铁氧体产品的性能超过PC30，接近PC40。