Extraction of Phosphorous from Steelmaking Slag by Leaching
In order to recyclephosphorusfrom steelmaking slag,a separation processby leaching has been proposed by current authors.The principle of this leaching process was to utilize the differencesin the water-solubility betweenthe C2S-C3 Psolid solution and the other phases.Experimentswere carried out to determinethe effect of pH on the dissolution behavior of various elements in the steelmaking slagwith and without free-CaO phase.When the pH was decreased,the dissolution behavior of Ca,Si,P and Fe from the steelmaking slag was increased.Furthermore,at a pH of 3,the dissolution ratio of P from steelmaking slag without the free-CaO was larger than that from steelmaking slag including free-CaO.
steelmaking slag C2S-C3P P resources leaching process
Kim Sun-Joong Gao Xu Uedaand Shigeru Kitamura Shin-ya
Institute of Multidisciplinary Research for Advanced Materials,Tohoku University,2-1-1 Katahira,Aoba-ku,Sendai 980-8577,Japan
国内会议
上海
英文
1-6
2015-10-21（万方平台首次上网日期，不代表论文的发表时间）