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。

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.

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

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。