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结合生产实践,从工艺操作条件(中和度、干燥温度、混酸密度、返料倍数)、产品氮含量、控制法、原料配方(硫酸、磷酸用量,氨与尿素用量比例)、磷酸杂质、产品水分控制法、装置稳定运行等方面分析其对高浓度硫基复合肥氮利用率的影响,提出提高氮利用率的一些做法和控制要求。
According to the production practice, the content of phosphoric acid, the content of phosphoric acid, the content of phosphoric acid, the content of phosphoric acid and the content of phosphoric acid were determined from the conditions of process operation (neutralization degree, drying temperature, mixed acid density, Moisture control method, stable operation of the device and other aspects of the high concentration of sulfur-based compound fertilizer efficiency of nitrogen utilization, put forward some ways to improve nitrogen utilization and control requirements.