Inorganic Chemicals Industry >
Study on dynamic adsorption of Mn 2+ from phosphoric acid by ion exchange technology
Received date: 2020-07-18
Online published: 2021-01-08
In recent years,ion exchange technology has been widely developed and applied in the purification of wet-process phosphoric acid.Sinco-430 cation exchange resin was used to remove manganese ions from phosphoric acid.The effects of in-flow rate,initial manganese concentration of phosphoric acid solution and temperature on the adsorption performance were investigated.The results showed that increasing inflow rate,initial manganese concentration and temperature were all con-ducive to shortening the saturation time of resin.However,the increase of inflow rate will reduce the adsorption rate of resin,and the increase of temperature will reduce the saturated adsorption capacity of resin.Under the conditions that the inflow rate was 4.0 mL/min,the initial manganese mass concentration of solution was 10.22 mg/mL and the temperature was 35 ℃,the saturated adsorption capacity of the resin for manganese ions was 64.76 mg/g,and the adsorption efficiency was 63.55%.Thomas,Yoon-Nelson and Yan dynamic adsorption model were used to fit the experimental data of dynamic adsorption pro-cess.It was found that the Yan model fitted best,and the relative deviation between the saturated adsorption capacity calcu-lated by the Yan model and the experimental value was 6.93%~10.91%.
Key words: ion exchange; manganese ion; phosphoric acid; dynamic adsorption; model fitting
Haibo Zhuang , Lin Yang , Qiang Deng , Runzhou Ye , Zhaomin Wu . Study on dynamic adsorption of Mn 2+ from phosphoric acid by ion exchange technology[J]. Inorganic Chemicals Industry, 2021 , 53(1) : 18 -23 . DOI: 10.11962/1006-4990.2020-0096
[1] | Kouzbour S, Gourich B, Gros F, et al. Comparative analysis of indus-trial processes for cadmium removal from phosphoric acid:A revi-ew[J]. Hydrometallurgy, 2019,188:222-247. |
[2] | 马超, 吴元欣, 金放, 等. 磷酸的工业生产研究现状与展望[J]. 化学工程, 2013,41(6):74-78. |
[3] | 王同永. 湿法磷酸净化技术应用研究[J]. 山东化工, 2018,47(12):122-123. |
[4] | 张亚明, 李文超, 王海军. 我国磷矿资源开发利用现状[J]. 化工矿物与加工, 2020,49(6):43-46. |
[5] | 罗惠华, 刘连坤, 朱道鹏, 等. 黄麦岭磷矿除镁降锰选矿试验研究[J]. 中国非金属矿工业导刊, 2017(1):17-20. |
[6] | 黄懿, 张志业, 王辛龙, 等. 溶剂萃取法脱除湿法磷酸中锰离子的实验研究[J]. 磷肥与复肥, 2018,33(4):5-7. |
[7] | Leng X, Zhong Y, Xu D, et al. Mechanism and kinetics study on removal of iron from phosphoric acid by cation exchange resin[J]. Chin.J.Chem.Eng., 2019,27(5):1050-1057. |
[8] | Tang C, Qiu Y, Wang Y, et al. Kinetic studies on Al3+ removal from phosphoric acid by cation exchange resin[J]. Can.J.Chem.Eng., 2018,96(4):944-954. |
[9] | Abdel-Ghafar H M, Abdel-Aal E A, Ibrahim M A M, et al. Purifi-cation of high iron wet-process phosphoric acid via oxalate precipi-tation method[J]. Hydrometallurgy, 2019,184:1-8. |
[10] | Jin Y, Ma Y, Weng Y, et al. Solvent extraction of Fe3+ from the hy-drochloric acid route phosphoric acid by D2EHPA in kerosene[J]. Journal of Industrial and Engineering Chemistry, 2014,20(5):3446-3452. |
[11] | Dang L, Wei H, Zhu Z, et al. The influence of impurities on phosp-horic acid hemihydrate crystallization[J]. J.Cryst.Growth, 2007,307(1):104-111. |
[12] | 杨帆, 胡方峰, 陈金芳. 十二烷基苯磺酸乳化液膜法净化湿法磷酸除镁[J]. 云南化工, 2008(1):24-29. |
[13] | 刘安荣, 李敬, 王振杰, 等. 离子交换法脱除湿法磷酸中铁、铝杂质的研究[J]. 化工矿物与加工, 2019,48(5):57-59. |
[14] | 熊祥祖, 王威, 李志保, 等. 离子交换树脂脱除湿法磷酸中金属杂质的研究[J]. 武汉工程大学学报, 2009,31(7):26-29. |
[15] | 杨政琦, 周学克, 阮云刚, 等. 离子交换树脂脱除湿法磷酸中的铝和镁的研究[J]. 磷肥与复肥, 2016,31(2):6-7,10. |
[16] | 龚浩, 郭劲松, 方芳, 等. 改性陶粒对水中卡马西平去除的动态吸附实验及模型[J]. 环境工程学报, 2016,10(7):3573-3579. |
[17] | 李亚娟, 赵传起, 杨悦锁, 等. 石墨烯基铁氧化物对水体中草甘膦的动态吸附性能及模型[J]. 化工学报, 2018,69(9):3944-3953. |
[18] | 袁纯怡, 孙玉柱, 杨颖, 等. D301树脂动态吸附溴离子过程探究及模型拟合[J]. 过程工程学报, 2020(6):655-666. |
/
〈 |
|
〉 |