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Method for simultaneously preparing compact calcium hexaluminate and titanium-silicon alloy by aluminothermic reduction of titanium-iron slag and compact calcium hexaluminate prepared by method
The invention discloses a method for simultaneously preparing compact calcium hexaluminate and a titanium-silicon alloy through aluminothermic reduction of ferrotitanium slag and the compact calcium hexaluminate prepared by the method. The invention relates to the technical field of waste treatment and resource utilization. According to the method, 70-74 wt% of ferrotitanium slag, 7-10 wt% of Al particles, 6-8 wt% of SiO2 micro powder and 10-15 wt% of lime serve as raw materials, the raw materials are put into a container and smelted at high temperature, after smelting is finished, upper-layer oxide molten slag and lower-layer metal melt are sequentially poured out and separated, the lower-layer metal melt is cooled, and a titanium-silicon alloy byproduct is obtained. And cooling the upper-layer oxide slag to room temperature to obtain the compact calcium hexaluminate. According to the method, TiO2 in the ferrotitanium slag is extracted and utilized, CaO and Al2O3 in the remaining tailings are fully utilized, compact calcium hexaluminate is prepared, and high-added-value utilization of the ferrotitanium slag is achieved.
本发明公开了一种钛铁渣铝热还原同时制备致密六铝酸钙和钛硅合金的方法和该方法制备的致密六铝酸钙。本发明涉及废弃物处理及资源化利用技术领域。方法以70～74wt％的钛铁渣、7～10wt％的Al粒、6～8wt％的SiO2微粉和10～15wt％的石灰为原料，将上述原料装入容器中，高温熔炼，熔炼结束后，分别将上层氧化物熔渣和下层金属熔体依次倒出分离，下层金属熔体冷却得到钛硅合金副产品，上层氧化物熔渣冷却至室温得到致密六铝酸钙。本发明将钛铁渣中TiO2提取利用，同时将剩余尾渣中的CaO和Al2O3充分利用，制备致密六铝酸钙实现钛铁渣的高附加值利用。
Method for simultaneously preparing compact calcium hexaluminate and titanium-silicon alloy by aluminothermic reduction of titanium-iron slag and compact calcium hexaluminate prepared by method
The invention discloses a method for simultaneously preparing compact calcium hexaluminate and a titanium-silicon alloy through aluminothermic reduction of ferrotitanium slag and the compact calcium hexaluminate prepared by the method. The invention relates to the technical field of waste treatment and resource utilization. According to the method, 70-74 wt% of ferrotitanium slag, 7-10 wt% of Al particles, 6-8 wt% of SiO2 micro powder and 10-15 wt% of lime serve as raw materials, the raw materials are put into a container and smelted at high temperature, after smelting is finished, upper-layer oxide molten slag and lower-layer metal melt are sequentially poured out and separated, the lower-layer metal melt is cooled, and a titanium-silicon alloy byproduct is obtained. And cooling the upper-layer oxide slag to room temperature to obtain the compact calcium hexaluminate. According to the method, TiO2 in the ferrotitanium slag is extracted and utilized, CaO and Al2O3 in the remaining tailings are fully utilized, compact calcium hexaluminate is prepared, and high-added-value utilization of the ferrotitanium slag is achieved.
本发明公开了一种钛铁渣铝热还原同时制备致密六铝酸钙和钛硅合金的方法和该方法制备的致密六铝酸钙。本发明涉及废弃物处理及资源化利用技术领域。方法以70～74wt％的钛铁渣、7～10wt％的Al粒、6～8wt％的SiO2微粉和10～15wt％的石灰为原料，将上述原料装入容器中，高温熔炼，熔炼结束后，分别将上层氧化物熔渣和下层金属熔体依次倒出分离，下层金属熔体冷却得到钛硅合金副产品，上层氧化物熔渣冷却至室温得到致密六铝酸钙。本发明将钛铁渣中TiO2提取利用，同时将剩余尾渣中的CaO和Al2O3充分利用，制备致密六铝酸钙实现钛铁渣的高附加值利用。
Method for simultaneously preparing compact calcium hexaluminate and titanium-silicon alloy by aluminothermic reduction of titanium-iron slag and compact calcium hexaluminate prepared by method
一种钛铁渣铝热还原同时制备致密六铝酸钙和钛硅合金的方法和该方法制备的致密六铝酸钙
GU HUAZHI (author) / CHEN DING (author) / RONTOU (author) / KE CHANGMING (author) / ZHANG JINHUA (author) / HUANG AO (author) / ZHANG MEIJIE (author) / FU LYUPING (author)
2024-10-11
Patent
Electronic Resource
Chinese
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