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Mullite porous ceramic prepared from secondary aluminum ash and process method thereof
The invention relates to mullite porous ceramic prepared from secondary aluminum ash and a process method of the mullite porous ceramic, and relates to the technical field of solid hazardous waste treatment. The process method of the mullite porous ceramic comprises the following steps: firstly, calcining secondary aluminum ash at 850-900 DEG C for 1.5-2.5 hours to obtain calcined secondary aluminum ash; uniformly mixing the calcined secondary aluminum ash, fluorite tailings and quartz sand, and grinding to obtain a mixed concentrate; the mass ratio of the calcined secondary aluminum ash to the fluorite tailings to the quartz sand is (12-14): (4-6): (1-3); finally, after the mixed concentrate is put into a die and pressed, sintering is conducted, and the mullite porous ceramic is obtained. According to the technological method, the mullite porous ceramic which is high in porosity, small in pore diameter, excellent in various mechanical properties and wide in industrialization prospect is successfully prepared from the solid hazardous waste secondary aluminum ash, the application proportion of the secondary aluminum ash is 60% or above, and the reuse value of the secondary aluminum ash is fully exerted.
本发明涉及一种利用二次铝灰制备莫来石多孔陶瓷及其工艺方法，涉及固体危险废物处理技术领域。本发明所述的莫来石多孔陶瓷的工艺方法，包括以下步骤：首先将二次铝灰在850‑900℃下煅烧1.5‑2.5h，得到煅烧二次铝灰；再将所述煅烧二次铝灰、萤石尾矿和石英砂混匀，经研磨得到混合精料；所述煅烧二次铝灰、萤石尾矿和石英砂的质量比为12‑14：4‑6：1‑3；最后将所述混合精料装模施压后，进行烧结，得到所述莫来石多孔陶瓷。本发明所述的工艺方法利用固体危险废物二次铝灰成功制备出孔隙率高、孔径小、各项力学性能优异和产业化前景远大的莫来石多孔陶瓷，其中二次铝灰的应用比例在六成以上，充分地发挥了二次铝灰的再使用价值。
Mullite porous ceramic prepared from secondary aluminum ash and process method thereof
The invention relates to mullite porous ceramic prepared from secondary aluminum ash and a process method of the mullite porous ceramic, and relates to the technical field of solid hazardous waste treatment. The process method of the mullite porous ceramic comprises the following steps: firstly, calcining secondary aluminum ash at 850-900 DEG C for 1.5-2.5 hours to obtain calcined secondary aluminum ash; uniformly mixing the calcined secondary aluminum ash, fluorite tailings and quartz sand, and grinding to obtain a mixed concentrate; the mass ratio of the calcined secondary aluminum ash to the fluorite tailings to the quartz sand is (12-14): (4-6): (1-3); finally, after the mixed concentrate is put into a die and pressed, sintering is conducted, and the mullite porous ceramic is obtained. According to the technological method, the mullite porous ceramic which is high in porosity, small in pore diameter, excellent in various mechanical properties and wide in industrialization prospect is successfully prepared from the solid hazardous waste secondary aluminum ash, the application proportion of the secondary aluminum ash is 60% or above, and the reuse value of the secondary aluminum ash is fully exerted.
本发明涉及一种利用二次铝灰制备莫来石多孔陶瓷及其工艺方法，涉及固体危险废物处理技术领域。本发明所述的莫来石多孔陶瓷的工艺方法，包括以下步骤：首先将二次铝灰在850‑900℃下煅烧1.5‑2.5h，得到煅烧二次铝灰；再将所述煅烧二次铝灰、萤石尾矿和石英砂混匀，经研磨得到混合精料；所述煅烧二次铝灰、萤石尾矿和石英砂的质量比为12‑14：4‑6：1‑3；最后将所述混合精料装模施压后，进行烧结，得到所述莫来石多孔陶瓷。本发明所述的工艺方法利用固体危险废物二次铝灰成功制备出孔隙率高、孔径小、各项力学性能优异和产业化前景远大的莫来石多孔陶瓷，其中二次铝灰的应用比例在六成以上，充分地发挥了二次铝灰的再使用价值。
Mullite porous ceramic prepared from secondary aluminum ash and process method thereof
一种利用二次铝灰制备莫来石多孔陶瓷及其工艺方法
ZHAO WEI (author) / LI YU (author) / ZHANG XINGHUA (author) / WANG RUI (author) / GUO HONGWEI (author) / YAN BINGJI (author) / CHEN DONG (author) / LI PENG (author)
2022-06-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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