Abstract:The productivity of steelmaking slag in China is huge,while its comprehensive utilization ratio is lower,resulting in severe resources waste and environmental burden. The separation and recovery of phosphorus from steelmaking slag is the key technology to achieve its efficient resource utilization,which is significant to the development of new phosphate resources and the establishment of a waste-free steelmaking process. Firstly,the distribution status of phosphorus in steelmaking slag was analyzed,and the major methods of phosphorus recovery from steelmaking slag proposed and their technical characteristics were summarized. A novel method of direct extraction of phosphate products from steelmaking slag by selective leaching and its research progress was introduced. The principle of selective leaching and a process of realizing the recycling of steelmaking slag was analyzed. The advantages and disadvantages of this method were discussed,and some suggestions for the future development of resource utilization of steelmaking slag were finally proposed.
杜传明, 于耀辉, 袁磊, 于景坤. 钢渣中磷分离及回收的研究现状和发展趋势[J]. 钢铁, 2020, 55(12): 1-9.
DU Chuan-ming, YU Yao-hui, YUAN Lei, YU Jing-kun. Research status and development trend of phosphorus separation and recovery from steelmaking slag[J]. Iron and Steel, 2020, 55(12): 1-9.
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