| 不同的配比对LiCoO_2和NaHSO_4·H_2O混合物在酸性焙烧产物中元素赋存状态的研究 |
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| 引用本文： | 刘沛静.不同的配比对LiCoO_2和NaHSO_4·H_2O混合物在酸性焙烧产物中元素赋存状态的研究[J].当代化工,2017,46(6). |
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| 作者姓名： | 刘沛静 |
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| 作者单位： | 陕西国防工业技术学院 化学工程学院,陕西 西安,710300 |
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| 摘 要： | 了解废旧锂离子电池回收利用的现状和存在的问题对回收金属元素具有非常重要的意义。将LiCoO_2与NaHSO_4·H_2O按照摩尔比1∶1、1∶2、1∶3、1∶4进行混合,混合均匀后进行酸性焙烧,采用TG-DSC-MS、XRD和SEM研究了焙烧产物中元素的存在形式和赋存状态,研究结果表明:Na元素是以LiNa(SO_4)和Na_2Co(SO_4)_2的形式存在,Li元素的赋存形式是LiNa(SO_4),Co元素的赋存形式是Co_3O_4和Na_2Co(SO_4)_2,焙烧产物致密,形状不规则。
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| 关 键 词： | LiCoO2 Co元素 酸性焙烧 赋存状态 |
Research on Existent State of Elements in Calcinate of LiCoO2 and NaHSO4·H2O Mixtures With Different Mixing Proportions |
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| LIU Pei-jing.Research on Existent State of Elements in Calcinate of LiCoO2 and NaHSO4·H2O Mixtures With Different Mixing Proportions[J].Contemporary Chemical Industry,2017,46(6). |
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| Authors: | LIU Pei-jing |
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| Abstract: | To understand the situation and existing problems of recycling waste lithium ion batteries is very important for recovery of metal elements. In this article, LiCoO2 and NaHSO4?H2O were mixed according to the mole ratio of 1:1,1:2 and 1:3,1:4,and then acid calcination of the mixtures was carried out, existence form and occurrence state of elements in the calcined peoducts were studied by TG-DSC-MS,XRD and SEM.The results show that existence form of Na element is LiNa(SO4) and Na2Co(SO4)2,the occurrence of Li element is in the form of LiNa(SO4), existence form of Co element is Co3O4 and Na2Co(SO4)2;calcined product is dense,and has irregular shape. |
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| Keywords: | LiCoO2 Co element Acid roasting Occurrence state |
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