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A platform for research: civil engineering, architecture and urbanism
Method for curing lead-zinc tailings through geopolymerization reaction
The invention relates to the technical field of tailing treatment, and particularly discloses a method for curing lead-zinc tailings through geopolymerization reaction. The method comprises the following steps: mixing metakaolin and lead-zinc tailings to prepare a mixture; mixing the mixture with an alkaline activator to prepare a flowable slurry; and solidifying the flowable slurry to obtain a lead-zinc tailing solidified body. According to the method provided by the invention, the alkali-activated metakaolin and the lead-zinc tailings are subjected to a geopolymerization reaction to form a geopolymer, so that the lead-zinc tailings are cured. The geopolymer obtained through the method, namely the lead-zinc tailing solidified body, has a specific silicon-aluminum oxide framework structure, and efficient immobilization of the migratable heavy metal in the lead-zinc tailings can be achieved.
本发明涉及尾矿处理技术领域，具体公开了一种通过地聚反应固化铅锌尾矿的方法。本发明方法将偏高岭土与铅锌尾矿混合，制成混合料；混合料与碱性激发剂混合，制成流动性料浆；所述流动性料浆经固化，得到铅锌尾矿固化体。本发明提供的方法利用碱激发偏高岭土与铅锌尾矿进行地聚反应形成地聚物，从而实现固化铅锌尾矿。本发明方法获得的地聚物即铅锌尾矿固化体中具有特有的硅铝氧化物骨架结构，可以实现铅锌尾矿中可迁移性重金属的高效固定化。
Method for curing lead-zinc tailings through geopolymerization reaction
The invention relates to the technical field of tailing treatment, and particularly discloses a method for curing lead-zinc tailings through geopolymerization reaction. The method comprises the following steps: mixing metakaolin and lead-zinc tailings to prepare a mixture; mixing the mixture with an alkaline activator to prepare a flowable slurry; and solidifying the flowable slurry to obtain a lead-zinc tailing solidified body. According to the method provided by the invention, the alkali-activated metakaolin and the lead-zinc tailings are subjected to a geopolymerization reaction to form a geopolymer, so that the lead-zinc tailings are cured. The geopolymer obtained through the method, namely the lead-zinc tailing solidified body, has a specific silicon-aluminum oxide framework structure, and efficient immobilization of the migratable heavy metal in the lead-zinc tailings can be achieved.
本发明涉及尾矿处理技术领域，具体公开了一种通过地聚反应固化铅锌尾矿的方法。本发明方法将偏高岭土与铅锌尾矿混合，制成混合料；混合料与碱性激发剂混合，制成流动性料浆；所述流动性料浆经固化，得到铅锌尾矿固化体。本发明提供的方法利用碱激发偏高岭土与铅锌尾矿进行地聚反应形成地聚物，从而实现固化铅锌尾矿。本发明方法获得的地聚物即铅锌尾矿固化体中具有特有的硅铝氧化物骨架结构，可以实现铅锌尾矿中可迁移性重金属的高效固定化。
Method for curing lead-zinc tailings through geopolymerization reaction
一种通过地聚反应固化铅锌尾矿的方法
GUO HAOZHE (author) / LI MENGYUAN (author) / TANG RENHENG (author)
2024-05-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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