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研究反应温度、液固比、添加结晶改良剂等对混酸法硝酸磷肥工艺磷收率和磷石膏结晶情况的影响。通过添加结晶改良剂 ,获得了过滤性能良好的粗大石膏结晶 ,磷石膏过滤强度 >6 0 0 kg干渣 / (m2 · h)
The effects of reaction temperature, liquid-solid ratio, addition of crystal modifier on the yield of phosphorus and the crystallization of phosphogypsum were investigated. By adding the crystal modifier, the gypsum crystal with good filtration performance was obtained. The filtering strength of phosphogypsum> 6 0 0 kg dry slag / (m2 · h)