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Method for removing soluble phosphorus and fluorine in phosphogypsum through synergy of electrolytic manganese slag and steel slag
The invention discloses a method for removing soluble phosphorus and fluorine in ardealite through synergy of electrolytic manganese slag and steel slag, and belongs to the technical field of industrial solid waste resource utilization. The method comprises the following steps: grinding steel slag, doping electrolytic manganese slag for activity excitation, adding the steel slag into pulpified ardealite, stirring, and carrying out filter pressing on the slurry after the reaction is finished, the mass fraction of the steel slag is 5%-10%, the mass fraction of the electrolytic manganese slag is 1%-3%, and the mass fraction of the phosphogypsum is 87%-94%. According to the method, soluble phosphorus and fluorine in ardealite are neutralized through alkalinity of the steel slag, insoluble phosphides and fluorides are generated, in addition, the steel slag contains active ingredients such as C2S and C3S, the hydration rate of the steel slag is greatly increased in a sulfate excitation environment provided by the electrolytic manganese slag, calcium sulphoaluminate hydrate substances are continuously generated, and the calcium sulphoaluminate hydrate is used as a raw material. The mechanical property of the modified body is improved, the purposes of treating waste with waste and utilizing the waste are achieved, and the method is suitable for harmless treatment of large-scale industrialization of the ardealite.
本发明公开了一种电解锰渣协同钢渣脱除磷石膏中可溶磷和氟的方法，属于工业固废资源化利用技术领域。所述的方法将钢渣粉磨后掺入电解锰渣进行活性激发，再将其加入到经浆化处理的磷石膏中进行搅拌，反应结束后料浆经过压滤即得；所述钢渣、电解锰渣以及磷石膏的质量分数分别为：5%~10%、1%~3%及87%~94%。该方法利用钢渣的碱性中和磷石膏中的可溶磷和氟，使其生成难溶磷化物和氟化物，此外钢渣自身存在C2S、C3S等活性成分以及钢渣在电解锰渣提供的硫酸盐激发环境下，其水化速率大大提高，不断生成水化硫铝酸钙类物质，提高了改性体的力学性能，实现了以废治废，废物利用的目的，适合磷石膏大规模工业化的无害化处理。
Method for removing soluble phosphorus and fluorine in phosphogypsum through synergy of electrolytic manganese slag and steel slag
The invention discloses a method for removing soluble phosphorus and fluorine in ardealite through synergy of electrolytic manganese slag and steel slag, and belongs to the technical field of industrial solid waste resource utilization. The method comprises the following steps: grinding steel slag, doping electrolytic manganese slag for activity excitation, adding the steel slag into pulpified ardealite, stirring, and carrying out filter pressing on the slurry after the reaction is finished, the mass fraction of the steel slag is 5%-10%, the mass fraction of the electrolytic manganese slag is 1%-3%, and the mass fraction of the phosphogypsum is 87%-94%. According to the method, soluble phosphorus and fluorine in ardealite are neutralized through alkalinity of the steel slag, insoluble phosphides and fluorides are generated, in addition, the steel slag contains active ingredients such as C2S and C3S, the hydration rate of the steel slag is greatly increased in a sulfate excitation environment provided by the electrolytic manganese slag, calcium sulphoaluminate hydrate substances are continuously generated, and the calcium sulphoaluminate hydrate is used as a raw material. The mechanical property of the modified body is improved, the purposes of treating waste with waste and utilizing the waste are achieved, and the method is suitable for harmless treatment of large-scale industrialization of the ardealite.
本发明公开了一种电解锰渣协同钢渣脱除磷石膏中可溶磷和氟的方法，属于工业固废资源化利用技术领域。所述的方法将钢渣粉磨后掺入电解锰渣进行活性激发，再将其加入到经浆化处理的磷石膏中进行搅拌，反应结束后料浆经过压滤即得；所述钢渣、电解锰渣以及磷石膏的质量分数分别为：5%~10%、1%~3%及87%~94%。该方法利用钢渣的碱性中和磷石膏中的可溶磷和氟，使其生成难溶磷化物和氟化物，此外钢渣自身存在C2S、C3S等活性成分以及钢渣在电解锰渣提供的硫酸盐激发环境下，其水化速率大大提高，不断生成水化硫铝酸钙类物质，提高了改性体的力学性能，实现了以废治废，废物利用的目的，适合磷石膏大规模工业化的无害化处理。
Method for removing soluble phosphorus and fluorine in phosphogypsum through synergy of electrolytic manganese slag and steel slag
一种电解锰渣协同钢渣脱除磷石膏中可溶磷和氟的方法
LIN SHUN (author) / ZHENG GUANGMING (author) / LI FANG (author) / WANG FENGLING (author) / ZHAO CHUNYANG (author)
2024-12-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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