Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Artificial accelerated impurity removal method for soluble phosphorus and soluble fluorine in phosphogypsum
The invention relates to an artificial accelerated impurity removal method for soluble phosphorus and soluble fluorine in ardealite. The method sequentially comprises the steps of infiltration and filtration treatment of the ardealite, drying treatment of the ardealite in a closed environment and humidification and drying treatment of the ardealite. Based on an influence mechanism of parameters such as leaching amount, temperature and humidity on the impurity content of the phosphogypsum in a closed environment, the content of soluble phosphorus, soluble fluorine and other impurities in the phosphogypsum is greatly reduced in a short time by regulating and controlling parameters such as temperature, humidity and leaching amount, the pH value and whiteness of the phosphogypsum are improved, and the yield of the phosphogypsum is improved. And the performance requirements of gypsum-based products are met. The method has the advantages of short impurity removal period, low energy consumption, good impurity removal effect, simplicity in operation and the like.
本发明涉及一种用于磷石膏中可溶性磷和可溶性氟的人工加速除杂方法，所述方法依序包括磷石膏的浸润过滤处理、密闭环境下磷石膏的烘干处理及磷石膏的加湿烘干处理。本发明基于淋滤量、温度及湿度等参数对密闭环境中磷石膏杂质含量的影响机制，通过调控温度、湿度及淋滤水量等参数，达到在短期内大幅降低磷石膏中可溶性磷和可溶性氟等杂质含量、提高磷石膏的pH值和白度，且满足石膏基制品性能需求的目的。该方法具有除杂周期短、能耗低、除杂效果佳及操作简单等优点。
Artificial accelerated impurity removal method for soluble phosphorus and soluble fluorine in phosphogypsum
The invention relates to an artificial accelerated impurity removal method for soluble phosphorus and soluble fluorine in ardealite. The method sequentially comprises the steps of infiltration and filtration treatment of the ardealite, drying treatment of the ardealite in a closed environment and humidification and drying treatment of the ardealite. Based on an influence mechanism of parameters such as leaching amount, temperature and humidity on the impurity content of the phosphogypsum in a closed environment, the content of soluble phosphorus, soluble fluorine and other impurities in the phosphogypsum is greatly reduced in a short time by regulating and controlling parameters such as temperature, humidity and leaching amount, the pH value and whiteness of the phosphogypsum are improved, and the yield of the phosphogypsum is improved. And the performance requirements of gypsum-based products are met. The method has the advantages of short impurity removal period, low energy consumption, good impurity removal effect, simplicity in operation and the like.
本发明涉及一种用于磷石膏中可溶性磷和可溶性氟的人工加速除杂方法，所述方法依序包括磷石膏的浸润过滤处理、密闭环境下磷石膏的烘干处理及磷石膏的加湿烘干处理。本发明基于淋滤量、温度及湿度等参数对密闭环境中磷石膏杂质含量的影响机制，通过调控温度、湿度及淋滤水量等参数，达到在短期内大幅降低磷石膏中可溶性磷和可溶性氟等杂质含量、提高磷石膏的pH值和白度，且满足石膏基制品性能需求的目的。该方法具有除杂周期短、能耗低、除杂效果佳及操作简单等优点。
Artificial accelerated impurity removal method for soluble phosphorus and soluble fluorine in phosphogypsum
用于磷石膏中可溶性磷和可溶性氟的人工加速除杂方法
WU FADE (Autor:in) / WANG HONGXIA (Autor:in) / GAO CHUNYONG (Autor:in) / GUO JUNHUA (Autor:in)
02.07.2024
Patent
Elektronische Ressource
Chinesisch
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