本文已被：浏览 2245次 下载 2631次
投稿时间：2012-10-22 修订日期：2012-10-29 录用日期：2012-10-29 网络发布日期：2013-04-23
投稿时间：2012-10-22 修订日期：2012-10-29 录用日期：2012-10-29 网络发布日期：2013-04-23
中文摘要: 分别用硝酸、硫酸和盐酸对某复杂含稀土磷灰石精矿进行浸出试验。结果表明，硝酸浸出时，磷灰石中绝大部分磷进入溶液，而稀土则分散于浸出液和渣中；硫酸浸出时，稀土浸出率较低，磷浸出率较高，可控制合适的条件初步分离精矿中的磷和稀土；盐酸浸出时，磷和稀土的浸出率均较高，可以通过溶剂萃取的方法从溶液中分离磷和稀土。
Abstract:A certain rare earth-containing apatite concentrate was leached with nitric acid, sulfuric acid and hydrochloric acid, respectively. The results show that most of phosphorous is leached into solution while rare earth is dispersed both in solution and residues when leached by nitric acid. RE leaching rate is a little low while phosphorous leaching rate is higher, so phosphorous and RE can be separated roughly by a good control of conditions when sulfuric acid is used as leaching agent. Through hydrochloric acid leaching, the leaching rates of phosphorous and RE are both high so solvent extractions can be used to separate phosphorous from RE in the solution.
keywords: apatite rare earth acid leaching
文章编号： 中图分类号： 文献标志码：
基金项目:973计划前期研究专项（2012CB724201）；广东省科技计划项目（2011B050400008）
| Author Name | Affiliation | |
| Liu Zhenzhen | Guangzhou Research Institute of Non-ferrius Metals | lsszz123@yahoo.com.cn |
| Liu Yong | ||
| Liu Mudan |
引用文本：
刘珍珍,刘勇,刘牡丹.含稀土磷灰石精矿酸浸试验研究[J].有色金属（冶炼部分）,2013(5):37-39.
Liu Zhenzhen,Liu Yong,Liu Mudan.Study on Acid Leaching of Rare Earth-Containing Apatite Concentrates[J].Nonferrous Metals (Extractive Metallurgy),2013(5):37-39.
刘珍珍,刘勇,刘牡丹.含稀土磷灰石精矿酸浸试验研究[J].有色金属（冶炼部分）,2013(5):37-39.
Liu Zhenzhen,Liu Yong,Liu Mudan.Study on Acid Leaching of Rare Earth-Containing Apatite Concentrates[J].Nonferrous Metals (Extractive Metallurgy),2013(5):37-39.
关注微信公众号