从沸腾炉渣中浸取有价金属

从沸腾炉渣中浸取有价金属

摘要： 研究了从钢厂炉渣中回收有用金属的.一种新方法.实验中,炉渣用硫酸浸取,浸取液采用EDTA络合滴定分析元素组成,颗粒粒径分布采用标准筛筛分,化学组成和微观结构分别采用XRF.结果表明,铝的最大提取率为86.20%,条件为:H2SO4浓度4 mol·L-1、固液比1∶ 5条件下在80 ℃浸取24 h.在同一条件下铁获得最大提取率为94.3%. Abstract： This paper is aimed at presenting a new way of recycling valuable metals in boiler slag derived from steel plants. In these testing, boiler slag was leached by sulfuric acid, elemental analysis of aqueous solutions was determined by EDTA titration. The Particle Size Distribution was derived by a standard screens. The components of the sample were examined by means of XRF.An aluminium extraction efficiency of 86.20% was achieved when the sintered pe

llets were leached using 4 mol·L-1 H2SO4 at solid liquid ratio of 1∶ 5 at 80 ℃ for 24 h. An iron extraction efficiency of 94.30% was achieved at the same conditions of the maximum extraction efficiency of Al. 作 者： 李进平 侯浩波 甘金华 LI Jin-ping HOU Hao-bo GAN Jin-hua 作者单位： 李进平,侯浩波,LI Jin-ping,HOU Hao-bo(武汉大学资源与环境科学学院,湖北,武汉430079)

甘金华,GAN Jin-hua(中国水产科学研究院长江水产研究所,湖北,荆州,434000)

期 刊： 中山大学学报(自然科学版) ISTICPKU Journal： ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS SUNYATSENI 年，卷(期)： 2007,46(z1) 分类号： X75 关键词： 沸腾炉渣 铝提取率 铁提取率 浸取 Keywords： boiler slag Al extraction efficiency Fe extraction efficiency extraction