| abstract |
The invention belongs to the technical field of inorganic non-metallic materials and relates to regenerated ceramics, in particular to a regenerated ceramic material, a preparation method and tellurium extraction applications. The regenerated ceramic material of the invention has a hierarchical porous structure, the interior is porous brick slag with a diameter of 15.00-50.00 μm, and the main components are composed of SiO 2 , MgO, Fe 2 O 3 and Al 2 O 3 , wherein Al 2 O The content of 3 is not less than 15%, and the content of MgO is not less than 10%; the outer surface is covered with a layer of composite oxide nanosheets. The present invention uses waste brick slag as raw material, and prepares tellurium material with high surface activity through pore making, surface functionalization and crystal growth. The invention creates new resources through the secondary utilization of construction waste, is beneficial to improve the environmental problems existing in construction waste, and promotes the construction and development of an environment-friendly and resource-saving society. In addition, the present invention aims at the demand for tellurium in my country's high-tech industry, and the prepared regenerated ceramic material for tellurium extraction has the advantages of high separation efficiency, low cost, simple process, energy saving and environmental protection. |