某花岗岩铀矿实验室溶浸工艺实验

采用传统水冶工艺开采铀,生产成本高,选冶效率较低。通过对某花岗岩铀矿石实验室工艺实验的研究,获得最佳溶浸工艺参数,为下一步进行现场原地破碎浸出实验提供技术依据。对铀矿床矿石进行了取样加工及化学全分析,并主要进行了搅拌浸出实验、泡浸实验、柱浸实验。结果表明：某花岗岩铀矿石浸出性能好,耗酸量低,铀浸出率高,浸出时间短;与常规水冶工艺相比,改变了浸出剂的硫酸浓度常规工艺从高到低的布液方式,采用由低到高再低的周期流程布液方式,有效地避免了硫酸钙的沉淀,降低了成本。...

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Bibliographic Details
Published in核化学与放射化学 Vol. 37; no. 6; pp. 509 - 516
Main Author 窦小平 熊超 王红海 刘欣 时燕华
Format Journal Article
LanguageChinese
Published 成都理工大学 地学核技术四川省重点实验室，四川 成都 610059 2015
江西省核工业地质局 测试研究中心,江西 南昌,330002%江西省核工业地质局 测试研究中心，江西 南昌 330002
Subjects
工艺实验
浸出率
溶浸
花岗岩
浸出率
technology test
花岗岩
granite
工艺实验
leaching rate
leaching
溶浸
Online AccessGet full text
ISSN0253-9950
DOI10.7538/hhx.2015.37.06.0509

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Summary:采用传统水冶工艺开采铀,生产成本高,选冶效率较低。通过对某花岗岩铀矿石实验室工艺实验的研究,获得最佳溶浸工艺参数,为下一步进行现场原地破碎浸出实验提供技术依据。对铀矿床矿石进行了取样加工及化学全分析,并主要进行了搅拌浸出实验、泡浸实验、柱浸实验。结果表明：某花岗岩铀矿石浸出性能好,耗酸量低,铀浸出率高,浸出时间短;与常规水冶工艺相比,改变了浸出剂的硫酸浓度常规工艺从高到低的布液方式,采用由低到高再低的周期流程布液方式,有效地避免了硫酸钙的沉淀,降低了成本。
Bibliography:11-2045/TL
Applying traditional hydrometallurgical process to exploit result in high produc- tion costs, low beneficiation and smelting efficiency. This article aims to obtain optimum technological parameters by researching on a granite uranium ore testing laboratory technolo- gy, which provide technical basis for in-situ broken ＆ leaching tests for the next step. Ura- nium ore deposit were sampled processed and full analysised of chemical elements. The tests mainly include mechanical agitation tests, static leaching tests and column leaching tests. The tests suggest a certain granite uranium ore leaches good, consume low amount of acid with high rate and short time of uranium leaching. Compared with the conventional hydro- metallurgical process, this research reforms the conventional liquid lay out mode of sulfuric acid concentration process. Low-high-low periodical liquid layout mode is adopted instead of conventional high-low mode. The precipitation of calcium sulfate was effectively prevented. Moreover the
ISSN:0253-9950
DOI:10.7538/hhx.2015.37.06.0509