某独居石优溶渣二段逆流浸出试验研究

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中文摘要：针对某独居石优溶渣,研究了采用一段常规浸出—二段逆流浸出工艺浸出铀、钍、稀土.考察了各因素对浸出效果的影响.结果表明:采用一段常规浸出法时,适宜条件下的铀、钍、稀土浸出率分别为98.66％、95.37％、64.23％;采用二段逆流浸出法时,铀、钍、稀土浸出率均可提高0.5％～1.0％,浸出液余酸降低50％以上,矿浆固液分离性能得到了一定改善.

外文标题：Two-stage Countercurrent Leaching of Monazite Selective Solution Residue

外文摘要：Leaching of uranium,thorium and rare earth from the monazite selective solution residue were studied by conventional leaching-two-stage countercurrent leaching was studied.The effects of various factors on the leaching was investigated.The results show that the leaching rates of uranium,thorium and rare earth are 98.66％,95.37％and 64.23％,respectively under suitable conditions using conventional leaching method.Using the two-stage countercurrent leaching method,the leaching rates of uranium,thorium and rare earth can be increased by 0.5％～1.0％,the residual acid of the leaching solution can be reduced by more than 50％,and the solid-liquid separation performance of the slurry can be improved to a certain extent.

外文关键词：

monazite selective solution residueconventional leachingtwo-stage countercurrent leachinguraniumthoriumrare earthsolid-liquid separation

作者：

程浩、苏学斌、刘康、刘忠臣、王桂硕、梁耕宇、张承天、黄永、刘会武、向秋林

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作者单位：

核工业北京化工冶金研究院,北京 101149

中国铀业有限公司,北京 100013

关键词：

独居石优溶渣常规浸出二段逆流浸出铀钍稀土固液分离

基金：

国家重点研发计划项目中国核工业集团有限公司核心能力提升项目中国核工业集团有限公司基础研究项目

项目编号：

2019YFC1907702中核科发[2021]-144号中核科发[2022]-440号

出版年：

2024

DOI：

10.13355/j.cnki.sfyj.2024.04.007

湿法冶金

核工业北京化工冶金研究院

湿法冶金

北大核心

影响因子：0.631

ISSN：1009-2617

年,卷(期)：2024.43(4)