| 含铀硼镁铁矿硫酸浸出液除铀的研究 |
| 摘要点击 778 全文点击 1112 投稿时间：1995-01-03 |
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| 中文关键词 U Fe(OH)3 共沉淀 除铀 |
| 英文关键词 U Fe(OH)3 coprecipitation removing uranium |
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| 中文摘要 |
| 辽宁省翁泉沟含铀硼镁铁矿的硫酸浸出液主要成分是H3BO3和MgSO4,并含有少量Fe3+(Fe2+已用NaClO3氧化为Fe3+)和UO22+.本研究用MgO调节溶液的pH值,进行了含铁与不含铁2种溶液的除铀试验。当溶液不含Fe3+时,靠UO22+自身沉淀后,溶液中U浓度高于硫酸浸出液中的U含量,无法将铀除去。而利用酸浸液中的Fe(OH)3作共沉淀剂,可以降低其中的U含量,并且随着初始酸浸液中U含量的降低,而净化液中的U含量也随之降低。Fe(OH)3吸附载带铀的最佳pH值为5.8左右。 |
| 英文摘要 |
| The digested solution of uranium bearing ascharite-magnetite syngenetic mineral in Wengquegou by sulfuric acid contains a large amount of H3BO3 and MgSO4 and a little Fe3+(after oxidation with NaClO3)and UO22+.The experiments of removing uranium from solutions containing Fe3+and without Fe3+,after adjusting their pH with MgO,were carried out.After precipitation of UO22+ from solution without Fe3+,the U content is still higher than that in digested solution,whereby it is impossible to remove U.When Fe(OH)3 exists,which can act as coprecipitant,the U content after purification can be depressed,the U content after purification decreases with decrease of U content in digested solution.The optimum pH for coprecipitation is about 5.8. |
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