The impurities in WPA, including Al, Fe, Ca and others, will combine with phosphor us in the purification process.
湿法磷酸中有大量杂质，在除杂过程中，与磷结合形成沉淀的元素主要有铝、铁、钙等。
The impurities in WPA, including Al, Fe, Ca and others, will combine with phosphor us in the purification process.
湿法磷酸中有大量杂质，在除杂过程中，与磷结合形成沉淀的元素主要有铝、铁、钙等。
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