Dissolution Mechanism of Elements from Steelmaking Slag in Fluvial and Marine Environments

摘要：

　　The elution behavior of elements,especially Fe ion,from steelmaking slag was investigated.Regardless of slag basicity and FeO concentration in steelmaking slag,the amount of ferric iron ion dissolved from steelmaking slag became larger with increasing metallic iron content in slag.Meanwhile,the ferric iron ion concentration in seawater rose in an early stage,and then decreased gradually with time.Moreover,as a result of investigating the stability of ferric iron ion,performing pH control of solution,ferric iron ion concentration decreased gradually with the rise of pH from the early stages of elution test.Influence of the slag cooling rate on the concentration of elements dissolved from decarburization slag and dephosphorization slag was clarified.The amount of iron ion increases by the addition of organic acid.

关键词： elution steelmaking slag iron ion seawater environmentally harmonized steelmaking process

作者: Ryo INOUE Yoshiya SATO Yasushi TAKASAKI Atsushi SHIBAYAMA

作者单位: Faculty of International Resource Sciences,Akita University,Akita 010-8502,Japan Graduate School of Engineering and Resource Science,Akita University,Akita 010-8502,Japan

会议类型: 国际会议

会议名称: the 6th International Congress on the Science and Technology of Steelmaking,ICS2015(第六届国际炼钢科技大会)

会议地点: 北京

会议语种:英文

页码: 930-933

在线出版日期: 2015-05-12（万方平台首次上网日期，不代表论文的发表时间）