针对湿法炼锌过程中 ,常规的铁矾法、喷淋法等除铁工艺存在渣量大、周期长、能耗高以及渣二次污染等缺陷和不足 ,并借鉴国外除铁新动向 ,进行了磷酸盐除铁法的试验研究 ,获得了较满意的结果。介绍了磷酸盐除铁新工艺的理论基础 ,着重阐述了其机理和研究成果。 In the process of wet-process zinc smelting, there are many defects and deficiencies such as large amount of slag, long period, high energy consumption and secondary pollution of slag in iron removal process such as conventional alum method and spray method. Based on the new trend of iron removal in foreign countries, The experimental research on phosphate iron removal was carried out, and the satisfactory results were obtained. The theoretical basis of the new phosphate removal technology is introduced, and its mechanism and research results are emphatically described.