Phosphogypsum (PG) is a solid waste from a wet process of phosphoric acid and its main component is CaSO₄·2H₂O. However, the temperature of PG decomposition is above 1200 °C. In this study, the decomposition temperature of PG was decreased using a small amount of coke as reducing agent, and the decomposition rate of PG can be further increased using potassium feldspar (K‐feldspar) as an additive to form a eutectic mixture with PG in nitrogen atmosphere.

中文翻译：

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长石钾对磷石膏分解速率的影响

磷石膏（PG）是由磷酸的湿处理的固体废物和它的主要成分是的CaSO ₄ ·2H ₂ O.然而，PG分解的温度为1200℃以上。在这项研究中，使用少量的焦炭作为还原剂降低了PG的分解温度，并且使用钾长石（K-长石）作为添加剂与PG形成共晶混合物，可以进一步提高PG的分解速率。氮气气氛。