Inorganic Chemicals Industry >
Study on new technology of preparing strontium chloride from strontium-containing waste residue
Received date: 2019-08-02
Online published: 2020-02-26
At present,the waste residue produced by factories producing strontium carbonate and other strontium salts contains up to 10%(mass fraction) strontium,which is not used and causes both environmental pollution and resource waste.With these strontium waste as raw material,high economic value of strontium chloride products was developed.The process route was determined through experiments,and the effects of the extraction time and the extraction temperature on the extraction rate were investigated respectively.The optimum technological conditions were determined by single factor experiment as follows:the leaching time was 4 h and the leaching temperature was 80 ℃.The method of removing impurities in the strontium chloride solution was studied,and the problem of separating magnesium and calcium from a large amount of strontium was solved.The final test samples reached the quality requirements of the products.
Key words: strontium residue; hydrochloric acid; strontium chloride
Chang′e Li , Guoting Li . Study on new technology of preparing strontium chloride from strontium-containing waste residue[J]. Inorganic Chemicals Industry, 2020 , 52(1) : 79 -81 . DOI: 10.11962/1006-4990.2019-0105
[1] | 徐龙君, 曲歌, 赵庆 , 等. 锶尾矿和废渣的污染现状及资源化利用进展[J]. 资源环境与工程, 2008,22(2):222-224,242. |
[2] | 曲歌 . 锶尾矿对环境的影响及回收锶盐研究[D]. 重庆:重庆大学, 2008. |
[3] | 李波, 段东平, 王树轩 , 等. 以碳酸锶废渣为原料制备高纯氯化锶[J]. 盐湖研究, 2013,21(2):58-61. |
[4] | 金建华, 杨占寿, 东军山 , 等. 响应面分析法优化碳酸锶废渣酸浸取工艺的研究[J]. 无机盐工业, 2017,49(5):52-55. |
[5] | 金建华, 杨占寿, 李傲 , 等. 锶废渣制备锶盐酸浸取工艺关键参数的实验研究[J]. 无机盐工业, 2016,48(8):60-62. |
[6] | 天津化工研究院. 无机盐工业手册[M].2版. 北京: 化学工业出版社, 1996: 610. |
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