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Porous self-loading zeolite material prepared from acid-process lithium slag as well as preparation method and application of porous self-loading zeolite material
The invention provides a porous self-loading zeolite material prepared from acid-process lithium slag as well as a preparation method and application of the porous self-loading zeolite material, and relates to the technical field of zeolite materials. The method comprises the steps: calcining the acid-process lithium slag to obtain modified lithium slag; mixing the modified lithium slag with an alkaline activator, a foaming agent and a foam stabilizer, and sequentially carrying out molding and accelerated maintenance to obtain a lithium slag-based geopolymer foaming material; and carrying outsaturated steam curing on the lithium slag based geopolymer foaming material to obtain the porous self-loaded zeolite material. The prepared porous self-loaded zeolite material is low in volume weightand high in porosity and is loaded with analcime; meanwhile, the porous self-loaded zeolite material has a solid blocky adsorbent having certain compressive strength; the porous self-loaded zeolite material has more excellent adsorption performance than fly ash-based geopolymer, kaolin-based geopolymer and lithium slag-based geopolymer materials, can be applied to adsorption of heavy metal ions,solves the problem of accumulation of lithium slag solid wastes, protects the environment and saves resources.
本发明提供了一种酸法锂渣制备的多孔自载沸石材料及其制备方法和应用，涉及沸石材料技术领域。本发明将酸法锂渣进行煅烧，得到改性锂渣；将所述改性锂渣与碱性激发剂、发泡剂和稳泡剂混合，依次进行成型和加速养护，得到锂渣基地质聚合物发泡材料；将所述锂渣基地质聚合物发泡材料进行饱和蒸汽养护，得到多孔自载沸石材料。本发明制备的多孔自载沸石材料是一种低容重、高孔隙率而且负载方沸石，同时又具有一定抗压强度的固体块状吸附剂，该多孔自载沸石材料具有相比粉煤灰基地质聚合物、高岭土基地质聚合物以及锂渣基地质聚合物材料更优异的吸附性能，可应用于重金属离子的吸附中，并且解决了锂渣固废堆积的问题，保护环境、节约资源。
Porous self-loading zeolite material prepared from acid-process lithium slag as well as preparation method and application of porous self-loading zeolite material
The invention provides a porous self-loading zeolite material prepared from acid-process lithium slag as well as a preparation method and application of the porous self-loading zeolite material, and relates to the technical field of zeolite materials. The method comprises the steps: calcining the acid-process lithium slag to obtain modified lithium slag; mixing the modified lithium slag with an alkaline activator, a foaming agent and a foam stabilizer, and sequentially carrying out molding and accelerated maintenance to obtain a lithium slag-based geopolymer foaming material; and carrying outsaturated steam curing on the lithium slag based geopolymer foaming material to obtain the porous self-loaded zeolite material. The prepared porous self-loaded zeolite material is low in volume weightand high in porosity and is loaded with analcime; meanwhile, the porous self-loaded zeolite material has a solid blocky adsorbent having certain compressive strength; the porous self-loaded zeolite material has more excellent adsorption performance than fly ash-based geopolymer, kaolin-based geopolymer and lithium slag-based geopolymer materials, can be applied to adsorption of heavy metal ions,solves the problem of accumulation of lithium slag solid wastes, protects the environment and saves resources.
本发明提供了一种酸法锂渣制备的多孔自载沸石材料及其制备方法和应用，涉及沸石材料技术领域。本发明将酸法锂渣进行煅烧，得到改性锂渣；将所述改性锂渣与碱性激发剂、发泡剂和稳泡剂混合，依次进行成型和加速养护，得到锂渣基地质聚合物发泡材料；将所述锂渣基地质聚合物发泡材料进行饱和蒸汽养护，得到多孔自载沸石材料。本发明制备的多孔自载沸石材料是一种低容重、高孔隙率而且负载方沸石，同时又具有一定抗压强度的固体块状吸附剂，该多孔自载沸石材料具有相比粉煤灰基地质聚合物、高岭土基地质聚合物以及锂渣基地质聚合物材料更优异的吸附性能，可应用于重金属离子的吸附中，并且解决了锂渣固废堆积的问题，保护环境、节约资源。
Porous self-loading zeolite material prepared from acid-process lithium slag as well as preparation method and application of porous self-loading zeolite material
一种酸法锂渣制备的多孔自载沸石材料及其制备方法和应用
LIU ZE (author) / HAN LE (author) / ZHANG YANBO (author) / WANG JIXIANG (author)
2020-04-17
Patent
Electronic Resource
Chinese
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