Recycling phosphorus from spent LiFePO4 battery for multifunctional slow-release fertilizer preparation and simultaneous recovery of Lithium
Recycling phosphorus from spent LiFePO4 battery for multifunctional slow-release fertilizer preparation and simultaneous recovery of Lithium
复制标题
回收废旧磷酸铁锂电池中的磷制备多功能缓释肥料并同时回收锂
DOI：
10.1016/j.cej.2021.131311
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发表时间：
2021-12
影响因子：
15.1
通讯作者：
Fu-Shen Zhang
中科院分区：
文献类型：
--
作者：
Xiao-Hui Yue;Cong-Cong Zhang;Wan-Bing Zhang;Yunfei Wang;Fu-Shen Zhang
综合利用废旧LiFePO4（LFP）电池中的磷，以提高这类低附加值电池回收利用的经济效益，引起了人们的广泛关注。本研究开发了一种绿色的新工艺，从废LFP电池中回收磷，并将其直接转化为耐酸的接磷缓释肥料（P-SRF）。与此同时，李也被找回来了。考察了几种参数对磷浸出效率的影响，明确了磷- srf在酸性和中性条件下的性能。在整个过程中，Li和P的回收率均在99.5%以上，并且合成的P- srf在酸性和中性条件下均具有较高的吸水性和较低的释放率。机理研究表明，废LFP电池中磷以HPO42−/H2PO4−的形式回收。HPO42−/H2PO4−降低了尿素与丙烯酸缩合反应的活化能，加速了反应的进行。同时，低pH条件下P-SRF的低释放速率归因于HPO42−/H2PO4−的缓冲作用。盆栽试验表明，P-SRF能有效促进玉米的生长。本研究为废旧LFP电池的高附加值回收提供了有利途径，回收的磷酸氢盐可进一步转化为具有较强耐酸性能的P-SRF，在酸性土壤、园艺和边坡治理等方面具有潜在的应用前景。
Comprehensive utilization of phosphorus from spent LiFePO4(LFP) battery has aroused considerable interest aiming to enhance the economic profit of recycling this type of low value-added battery. In the current study, a green and novel process was developed to recover phosphorus from spent LFP battery, which was further directly converted into phosphorus grafted slow-release fertilizer (P-SRF) with acid-resistance. Meanwhile, Li was simultaneously recovered. Effect of several parameters on the leaching efficiency of P was investigated, and the properties of P-SRF in acid and neutral conditions were clarified. In the whole process, the recovery efficiencies of Li and P were more than 99.5%, and furthermore, the synthesized P-SRF had high water-absorbing capacity and low release rate in both acid and neutral conditions. Mechanism study indicated phosphorus was recovered in the form of HPO42−/H2PO4−from spent LFP battery. HPO42−/H2PO4−reduced the activation energy of the condensation reaction between urea and acrylic acid to accelerate the reaction. Meanwhile, the low release rate of P-SRF in low pH was ascribed to the buffering effects of HPO42−/H2PO4−. Furthermore, pot experiments showed P-SRF effectively promoted the growth of maize. This study provided a profitable approach for high value-added recovery of spent LFP battery, and the recovered hydrophosphate could be further transferred into P-SRF with considerable acid-resistance, which has potential application in acid soil, horticulture and slope treatment.
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影响因子：
11.4
作者：
Shaviv, A;Raban, S;Zaidel, E
通讯作者：
Zaidel, E
影响因子：
6.1
作者：
Zhi-Yuan Ma;Xin Jia;Guoxian Zhang;Jia-mei Hu;Xiu-lan Zhang;Zhiyong Liu;Heyun Wang;Feng Zhou
通讯作者：
Zhi-Yuan Ma;Xin Jia;Guoxian Zhang;Jia-mei Hu;Xiu-lan Zhang;Zhiyong Liu;Heyun Wang;Feng Zhou
影响因子：
3.9
作者：
Song, X.;Hu, T.;Liu, J. W.
通讯作者：
Liu, J. W.
从废旧磷酸铁锂电池正极废料中选择性回收锂的可持续且简便的方法
影响因子：
8.4
作者：
Jialiang Zhang;Juntao Hu;Yubo Liu;Qiankun Jing;Cheng Yang;Yongqiang Chen;Chengyan Wang
通讯作者：
Chengyan Wang
DOI：
10.1016/j.colsurfa.2016.03.049
发表时间：
2016-06
期刊：
Colloids and Surfaces A: Physicochemical and Engineering Aspects
影响因子：
--
作者：
Carolina V. Waiman;J. M. Arroyave;Hongfeng Chen;W. Tan;M. Avena;Graciela P. Zanini
通讯作者：
Carolina V. Waiman;J. M. Arroyave;Hongfeng Chen;W. Tan;M. Avena;Graciela P. Zanini