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含钛高炉渣一直是钢铁工业固体废弃物再资源化综合利用的研究热点和难点。概述了含钛高炉渣资源化综合利用研究现状,指出了目前含钛高炉渣综合利用工艺的技术特点、工业化难度及对环境产生的影响。采用强酸或强碱、高温碳化或氯化对含钛高炉渣进行提取钛元素的方法,存在工艺复杂、耗能高、环境污染危害较大等不足;使用含钛高炉渣制作建材,虽然对环境没有危害,但是造成钛元素极大浪费;使用含钛高炉渣制取催化剂、抗菌材料和肥料,可使含钛高炉渣得到充分利用,且无尾渣和污染物产生。应综合利用含钛高炉渣中多种成分和矿物,提高含钛高炉渣综合利用率,使含钛高炉渣资源化综合利用的发展与环境保护和谐发展。
Titanium-bearing blast furnace slag has always been a hot and difficult issue in the comprehensive utilization of solid waste in iron and steel industry. The research status of comprehensive utilization of titanium-bearing blast furnace slag is summarized, and the technical characteristics of comprehensive utilization of titanium-bearing blast furnace slag, the difficulty of industrialization and the impact on the environment are pointed out. The use of strong acid or alkali, high temperature carbonization or chlorination of titanium-containing blast furnace slag extraction method of titanium, there are complex processes, high energy consumption, environmental hazards such as greater harm; use of titanium-containing blast furnace slag building materials, although the environment No harm, but caused a tremendous waste of titanium; the use of titanium-bearing blast furnace slag catalyst, antibacterial materials and fertilizers, titanium-bearing blast furnace slag can be fully utilized, and no tailings and pollutants generated. The comprehensive utilization of various components and minerals in the titanium-containing blast furnace slag should be improved to improve the comprehensive utilization rate of the titanium-containing blast furnace slag so as to make the comprehensive utilization of the titanium-bearing blast furnace slag resource and the harmonious development of environmental protection.