This essay studies a novel environment-friendly synthesis method for the high purity micron iron phosphate. Compared with traditional synthesis method, this new method can greatly reduce the amount of industrial sewage, hence it is an environment-friendly production technology which can effectively improve the products’ purity, structure stability and morphological consistency. This new method includes two-step reactions: first, phosphoric acid, iron powder and hydrogen peroxide are used as raw materials to obtain iron phosphate dihydrate intermediate, which is then calcined at high temperature to obtain anhydrous iron phosphate. The results show that the iron phosphate prepared for this new method is a hexagonal system-structured iron orthophosphate with high purity and without any impurities, exhibiting a regular and primary spherical particle morphology, at the average size of 3.096 μ m in particle and the specific surface area reaching 39.1765 m 2 g −1

中文翻译：

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一种高纯度微米级磷酸铁的新型环保合成方法及其在磷酸铁锂中的应用

本文研究了一种高纯度微米级磷酸铁的新型环保合成方法。与传统的合成方法相比，该新方法可大大减少工业废水的排放，是一种环保的生产技术，可有效提高产品的纯度，结构稳定性和形态一致性。该新方法包括两步反应：首先，以磷酸，铁粉和过氧化氢为原料获得磷酸铁二水合物中间体，然后将其在高温下煅烧以获得无水磷酸铁。结果表明，用这种新方法制备的磷酸铁是六方体系结构的正磷酸铁，纯度高，没有任何杂质，