HCl-AlCl_3溶液络合浸出稀土冶炼渣的研究
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- 英文论文题名：Coordination Leaching of Rare earth Smelting Slag by HCl-AlCl_3 Solution
- 论文作者：常觐男 ; 崔建国 ; 侯睿恩 ; 马志鸿 ; 邓沅
- 英文论文作者：Chang Jinnan ; Cui Jianguo ; Hou Ruien ; Ma Zhihong ; Deng Yuan ; China University of Geosciences ; Baotou Research Institute of Rare Earths ; State Key Laboratory of Rare Earth Resources and Comprehensive Utilization in Baiyunebo ; National Engineering Researh Centre of Rare Earth Metallurgy and Function Materials ; Baotou Ruixin rare earth metal materials Limited
- 年：2016
- 作者机构：中国地质大学;包头稀土研究院白云鄂博稀土资源研究与综合利用国家重点实验室瑞科稀土冶金及功能材料国家工程研究中心内;包头瑞鑫稀土金属材料股份有限公司;
- 论文关键词：络合 ; 浸出 ; 冶炼渣
- 英文论文关键词：Coordination ; Leaching ; Smelting Slag
- 会议召开时间：2016-09-06
- 会议录名称：2016全国稀土冶炼与环境保护技术交流会会刊
- 语种：中文
- 分类号：TF845
- 学会代码：ZGXT
- 会议名称：2016全国稀土冶炼与环境保护技术交流会
- 会议地点：中国广西南宁
- 主办单位：中国稀土学会环境保护专业委员会、中国稀土学会化学和湿法冶金专业委员会、中国稀土学会火法冶金专业委员会
- 学会名称：中国稀土学会
- 页数：6
- 文件大小：1074k
- 原文格式：O
- 会议级别：全国
摘要
本文结合镨钕金属冶炼渣的结构及组分和稀土氟碳铈矿资源的特点,设计了一种高效、工艺流程简单的提纯回收镨钕金属冶炼渣中稀土元素的新方法。通过络合浸出分离工艺,可实现稀土品位为58.23%、铁含量13.8%的镨钕金属冶炼渣中稀土元素的有效分离与提纯,分离并去除对其有害的铁及其他非稀土杂质元素,获得REO含量为80.56%的可作为电解质使用的氟化镨钕和浓度较高的稀土溶液,REO回收率为90%以上。在研究分离工艺的过程中探索了各种因素对分离效率的影响,并优化了实验条件参数,同时运用现代测试分析手段研究了分离过程中渣中各元素的迁移分布规律。
Scandium reco,the titanium elution efficiency can reach 98%through 3 stage countercurrent elution,while the scandium loss ratio is 4%,the separation effect of scandium and titanium is obvious.this paper combined the praseodymium neodymium metal smelting slag structure and characteristics of components with Bastnaesite resources designed an efficiently and simply process of purification rare earth elements from praseodymium neodymium metal smelting slag.By coordination leaching process,it can get rare grade of 58.23%,effective separation the iron from the praseodymium neodymium metal smelting slag with iron content of 13.8%,separated and removed its harmful impurities and other non-rare earth elements,then the REO content will achieve to 80.56%which can be used as electrolyte solution,and it can also get a high concentration of the rare earth solution.The REO recoveries is over 90%.During the study of the separation process,we also study the influence of various factors on the separation efficiency and optimize the parameters of the experimental conditions,while the use of modern test and analysis methods to study the movement and distribution of the elements of effective separation of the slag.
Scandium reco,the titanium elution efficiency can reach 98%through 3 stage countercurrent elution,while the scandium loss ratio is 4%,the separation effect of scandium and titanium is obvious.this paper combined the praseodymium neodymium metal smelting slag structure and characteristics of components with Bastnaesite resources designed an efficiently and simply process of purification rare earth elements from praseodymium neodymium metal smelting slag.By coordination leaching process,it can get rare grade of 58.23%,effective separation the iron from the praseodymium neodymium metal smelting slag with iron content of 13.8%,separated and removed its harmful impurities and other non-rare earth elements,then the REO content will achieve to 80.56%which can be used as electrolyte solution,and it can also get a high concentration of the rare earth solution.The REO recoveries is over 90%.During the study of the separation process,we also study the influence of various factors on the separation efficiency and optimize the parameters of the experimental conditions,while the use of modern test and analysis methods to study the movement and distribution of the elements of effective separation of the slag.
引文
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[3]张丽清,张风春,关瑾,等,从超导材料废料分离回收稀土元素钕的研究[J].沈阳化工学院学报,2003,(04):317-9.
[4]徐丽阳,陈志传.镍氢电池负极板中稀土的回收工艺研究[J].中国稀土学报,2003,(01):66-70.
[5]文伟,张覃.含稀土磷精矿中RE_2O_3浸出工艺研究[J].矿冶工程,2011,(05):88-90.
[6]王毅军,刘宇辉,翁国庆,等,盐酸优溶法回收NdFeB废料中稀土元素的研究与生产[J].稀有金属与硬质合金,2007,(02):25-7+47.
[7]高玮,古宏晨.稀土草酸盐沉淀过程中颗粒大小的控制[J].稀土,2000,(01):13-5.
[8]YAMAMOTO K.Method for recovering reusable elements from rare earth-iron alloy[M].Google Patents.1999.
[9]GAO X,OWENS W T.Process for Metal Recovery from Catalyst Waste[M].Google Patents.2010.
[10]Method of rare-earth metal recovery from orthovanadate compound[M].Google Patents.1969.
[11]李梅,胡家利,张晓伟,等,HCl-AlCl3溶液络合浸出包头50混合稀土精矿的研究[J].稀有金属,2016,(40):695-700.
[12]李梅,张晓伟,刘佳,等,HNO3-Al(NO3)3络合浸出包头稀土精矿中的氟元素及其络合机理[J].中国有色金属学报,2015,(25):508-514.
[13]刘佳,李梅,柳召刚,等,包头混合稀土精矿络合浸出的研究[J].中国稀土学报,2012,(30):673-679.
[14]张晓伟,李梅,柳召刚,等,HNO3-Al(NO3)3溶液分离包头混合稀土精矿的研究[J].中国稀土学报,2013,(31):588-596.
[15]迪安,久方,尚,等,兰氏化学手册[M].科学出版社,1991.
[16]LI M,ZHANG X,LIU Z,et al.Kinetics of leaching fluoride from mixed rare earth concentrate with hydrochloric acid and aluminum chloride[J].Hydrometallurgy,2013,140:71-6.