A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preparing electrofused compact chrome corundum aggregate from propane dehydrogenation waste catalyst
The invention relates to the technical field of preparation of refractory materials by recycling solid wastes, and relates to a method for preparing an electrofused compact chrome corundum aggregate by using a propane dehydrogenation waste catalyst. The chrome corundum aggregate is prepared from the following raw materials in parts by weight: 10-100wt% of the propane dehydrogenation waste catalyst, 10-100wt% of chromic oxide and 10-100wt% of aluminum oxide. The adding weight part of the chromium oxide is 0-90 wt%, and the adding weight part of the aluminum oxide is 0-90 wt%; the preparation method comprises the following steps: mixing a propane dehydrogenation waste catalyst, chromic oxide and aluminum oxide, smelting in an ore smelting furnace at the smelting temperature of higher than 2500 DEG C, so that the materials can be melted, and cooling and crushing after smelting to obtain the electric smelting compact chrome corundum aggregate. A smelting furnace is used for carrying out high-temperature sintering reaction on the catalyst, and aluminum oxide and chromium oxide form an infinitely-solid-solution aluminum-chromium solid solution at high temperature, so that toxic and harmful components in the waste catalyst are also solidified into the aluminum-chromium solid solution.
本发明涉及固体废弃物循环利用制备耐火材料的技术领域，涉及的一种丙烷脱氢废催化剂制备电熔致密铬刚玉骨料的方法：铬刚玉骨料以丙烷脱氢废催化剂，氧化铬，氧化铝为原料，丙烷脱氢废催化剂的加入重量份数为：10~100wt，氧化铬的加入重量份数为：0~90wt，氧化铝的加入重量份数为：0~90wt；丙烷脱氢废催化剂、氧化铬、氧化铝进行混合后，在矿冶炼炉内熔炼，熔炼的温度高于2500℃，使得上述物料能够熔化，熔炼完成后，经冷却破碎后，得到电熔致密铬刚玉骨料。利用熔炼炉对催化剂进行高温烧结反应，在高温下氧化铝与氧化铬形成无限固溶的铝铬固溶体，使得废催化剂中的有毒有害成分也固化到铝铬固溶体内。
Method for preparing electrofused compact chrome corundum aggregate from propane dehydrogenation waste catalyst
The invention relates to the technical field of preparation of refractory materials by recycling solid wastes, and relates to a method for preparing an electrofused compact chrome corundum aggregate by using a propane dehydrogenation waste catalyst. The chrome corundum aggregate is prepared from the following raw materials in parts by weight: 10-100wt% of the propane dehydrogenation waste catalyst, 10-100wt% of chromic oxide and 10-100wt% of aluminum oxide. The adding weight part of the chromium oxide is 0-90 wt%, and the adding weight part of the aluminum oxide is 0-90 wt%; the preparation method comprises the following steps: mixing a propane dehydrogenation waste catalyst, chromic oxide and aluminum oxide, smelting in an ore smelting furnace at the smelting temperature of higher than 2500 DEG C, so that the materials can be melted, and cooling and crushing after smelting to obtain the electric smelting compact chrome corundum aggregate. A smelting furnace is used for carrying out high-temperature sintering reaction on the catalyst, and aluminum oxide and chromium oxide form an infinitely-solid-solution aluminum-chromium solid solution at high temperature, so that toxic and harmful components in the waste catalyst are also solidified into the aluminum-chromium solid solution.
本发明涉及固体废弃物循环利用制备耐火材料的技术领域，涉及的一种丙烷脱氢废催化剂制备电熔致密铬刚玉骨料的方法：铬刚玉骨料以丙烷脱氢废催化剂，氧化铬，氧化铝为原料，丙烷脱氢废催化剂的加入重量份数为：10~100wt，氧化铬的加入重量份数为：0~90wt，氧化铝的加入重量份数为：0~90wt；丙烷脱氢废催化剂、氧化铬、氧化铝进行混合后，在矿冶炼炉内熔炼，熔炼的温度高于2500℃，使得上述物料能够熔化，熔炼完成后，经冷却破碎后，得到电熔致密铬刚玉骨料。利用熔炼炉对催化剂进行高温烧结反应，在高温下氧化铝与氧化铬形成无限固溶的铝铬固溶体，使得废催化剂中的有毒有害成分也固化到铝铬固溶体内。
Method for preparing electrofused compact chrome corundum aggregate from propane dehydrogenation waste catalyst
一种丙烷脱氢废催化剂制备电熔致密铬刚玉骨料的方法
WANG HAN (author) / FAN MUXU (author) / FENG ZHIYUAN (author) / ZHANG TAO (author) / WU GANG (author) / FANG XU (author) / LI DAN (author) / LI ZONGTAI (author)
2023-09-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Method for preparing foamed ceramic filter by using waste chrome corundum
| European Patent Office | 2024
Method for preparing foamed ceramic filter by using waste chrome corundum
| European Patent Office | 2024
Al2O3-Cr2O3 refractory product taking chrome corundum as aggregate
| European Patent Office | 2022
Method for preparing multilayer foamed ceramic filter by recycling waste chrome corundum
| European Patent Office | 2024
Method for preparing foamed ceramic filter by multiple sintering of waste chrome corundum
| European Patent Office | 2024