氟碳铈精矿钙化转型渣酸浸研究

doi:10.12068/j.issn.1005-3026.2015.05.016

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (5): 680-684.DOI: 10.12068/j.issn.1005-3026.2015.05.016

氟碳铈精矿钙化转型渣酸浸研究

豆志河，刘江，张廷安，黄宇坤

(东北大学多金属共生矿生态化冶金教育部重点实验室，辽宁沈阳110819)

收稿日期:2014-04-08 修回日期:2014-04-08 出版日期:2015-05-15 发布日期:2014-11-07
通讯作者: 豆志河
作者简介:豆志河(1978-)，男，河南周口人，东北大学教授，博士生导师; 张廷安(1960-)，男，河南周口人，东北大学教授，博士生导师.
基金资助:
国家重点基础研究发展计划项目(2012CBA01205).

Research on Leaching of Calcification Transition Slag of Bastnaesite

DOU Zhi-he， LIU Jiang， ZHANG Ting-an， HUANG Yu-kun

Key Laboratory of Ecological Metallurgy of Multimetal Ores，Ministry of Education， Northeastern University， Shenyang 110819， China.

Received:2014-04-08 Revised:2014-04-08 Online:2015-05-15 Published:2014-11-07
Contact: DOU Zhi-he
About author:-
Supported by:
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摘要/Abstract

摘要： 提出了氟碳铈精矿钙化转型预处理-酸浸提取稀土的新思路.首先采用高压DSC技术考察了钙化转型渣酸浸动力学，结果表明:钙化转型渣浸出30℃室温条件下即可进行，反应的表观活化能为0.014kJ/mol、反应级数为0.11.然后系统研究了盐酸浓度、酸浸温度、酸浸时间、液固比等对浸出效果的影响，钙化转型渣合适的酸浸条件为:酸浸温度80℃，盐酸浓度1mol·L^-1，酸浸时间30min，液固比15∶1.

关键词: 氟碳铈精矿, 钙化转型, 钙化转型渣, 高压DSC, 酸浸

Abstract: The new technology of bastnaesite in calcification transition decomposition-acid leaching to extract rare earth was proposed. The pressurized DSC was used to investigate the kinetics of calcification transition slag in acid leaching. The leaching effects of leaching temperature， acid concentration， leaching time， liquid to solid ratio were studied. The results showed that the acid leaching reaction of calcification transition slag can take place at room temperature of 30℃， and the apparent activation energy and reaction order are 0.014kJ/mol and 0.11， respectively. The appropriate strengthening acid leaching conditions are the leaching temperature of 80℃， the concentration of hydrochloric acid of 1 mol·L^-1， the leaching time of 30 min and the liquid-solid ratio of 15∶1.

Key words: bastnaesite, calcification transition, calcification transition slag, high pressure DSC；acid leaching

中图分类号:

豆志河，刘江，张廷安，黄宇坤. 氟碳铈精矿钙化转型渣酸浸研究[J]. 东北大学学报:自然科学版, 2015, 36(5): 680-684.

DOU Zhi-he， LIU Jiang， ZHANG Ting-an， HUANG Yu-kun. Research on Leaching of Calcification Transition Slag of Bastnaesite[J]. Journal of Northeastern University Natural Science, 2015, 36(5): 680-684.

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氟碳铈精矿钙化转型渣酸浸研究

Research on Leaching of Calcification Transition Slag of Bastnaesite

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