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Study on impurity removal rule of ferrous sulfate from by-product of titanium dioxide by crystallization purification
Received date: 2021-09-30
Online published: 2022-07-14
The freezing crystallization process was used to study on purification of by-product ferrous sulfate of titanium dioxide.The accumulation of Mg and Mn impurities and their removal rules during the circulation of the crystallization mother liquor were mainly investigated.Meanwhile,the influence of Na impurities that may be introduced into the system was also studied.Through multiple crystallizations,the Mg and Mn impurities in FeSO4·7H2O could be gradually reduced,but the circulation of the crystallization mother liquor would cause the gradual accumulation of Mg and Mn impurities in the system.By using the relationship curve between the content of Mg and Mn in the crystal liquid and the crystal,it could be inferred that the Mg content in the FeSO4·7H2O would be lower than 0.025% when the Mg content in the crystal liquid was less than 298 mg/L,and the Mn content in FeSO4·7H2O would be higher than 0.05% when the Mn content in the crystal liquid was higher than 761mg/L.In addition,Na should be avoided to introduce into the system,otherwise it would cause the Na impurity content in FeSO4·7H2O to exceed the standard.The research results of this paper could provide certain theoretical and technical guidance for purifying by-product ferrous sulfate of titanium dioxide by crystallization approach.
Wanye ZHU , Ding TANG , Heting CHI , Xianghui LIAO , Rongchuan ZHUANG , Qiankun WANG , Qingfeng SHEN . Study on impurity removal rule of ferrous sulfate from by-product of titanium dioxide by crystallization purification[J]. Inorganic Chemicals Industry, 2022 , 54(7) : 105 -109 . DOI: 10.19964/j.issn.1006-4990.2021-0594
1 | 纪利春.硫酸法钛白副产物绿矾的资源化利用现状[J].无机盐工业,2020,52(5):11-17. |
1 | JI Lichun.Present status of resource utilization of by-product green vitriol from titanium dioxide production by sulfuric acid method[J].Inorganic Chemicals Industry,2020,52(5):11-17. |
2 | 谢全模,胡文方,张莉,等.废渣绿矾精制高纯度硫酸亚铁的研究[J].河南化工,2007,24(11):33-35. |
2 | XIE Quanmo, HU Wenfang, ZHANG Li,et al.Research on the refining ferrous sulfate from waste copperas[J].Henan Chemical Industry,2007,24(11):33-35. |
3 | 唐聪,陈泉源,吕璠璠,等.三维电极电Fenton氧化法处理染料废水[J].化工环保,2019,39(1):28-33. |
3 | TANG Cong, CHEN Quanyuan, Fanfan Lü,et al.Treatment of dye wastewater by electro-Fenton oxidation process with three-dimensional electrode[J].Environmental Protection of Chemical Industry,2019,39(1):28-33. |
4 | 谢四才.钛白粉厂硫酸亚铁资源综合利用实验研究[J].广东化工,2012,39(2):128-129. |
4 | XIE Sicai.An experimental study on comprehensive utilization of resources of titanium dioxide factory scrap ferrous sulfate[J]. |
4 | Guangdong Chemical Industry,2012,39(2):128-129. |
5 | 罗道成,易平贵,刘俊峰.硫铁矿烧渣综合利用研究进展[J].工业安全与环保,2003,29(4):10-12. |
5 | LUO Daocheng, YI Pinggui, LIU Junfeng.Study and development on the comprehensive utilization of iron pyrite cinder[J].Industrial Safety and Dust Control,2003,29(4):10-12. |
6 | 钱有军,裴晓东,骆艳华,等.钛白副产物硫酸亚铁净化液制备高品质氧化铁红试验[J].金属矿山,2021(7):211-215. |
6 | QIAN Youjun, PEI Xiaodong, LUO Yanhua,et al.Preparation of high quality iron oxide red by purification solution of titanium by-products ferrous sulfate[J].Metal Mine,2021(7):211-215. |
7 | 吴健春,路瑞芳.钛白副产废酸和七水硫酸亚铁制备一水硫酸亚铁的研究[J].无机盐工业,2018,50(6):75-77. |
7 | WU Jianchun, LU Ruifang.Study on preparation of FeSO4·H2O from titanium white waste acid and FeSO4·7H2O[J].Inorganic Che- |
7 | Industry micals,2018,50(6):75-77. |
8 | YANG Shoufeng, ZAVALIJ P Y, WHITTINGHAM M S.Hydrothermal synthesis of lithium iron phosphate cathodes[J].Electrochemistry Communications,2001,3(9):505-508. |
9 | 谷和云,李昇,李二锐,等.镁离子掺杂磷酸铁锂的制备及其电化学性能[J].无机盐工业,2016,48(1):64-67. |
9 | GU Heyun, LI Sheng, LI Errui,et al.Synthesis and electrochemical performance of magnesium ion doped lithium iron phosphate[J].Inorganic Chemicals Industry,2016,48(1):64-67. |
10 | 冯颖,刘凯,霍涛涛,等.镁掺杂的非化学计量比磷酸铁锂的制备及性能[J].化工进展,2017,36(8):3006-3012. |
10 | FENG Ying, LIU Kai, HUO Taotao,et al.Synthesis and performance of Mg-doped non-stoichiometric lithium iron phosphate[J].Chemical Industry and Engineering Progress,2017,36(8):3006- |
10 | 3012. |
11 | XU Bo, QIAN Danna, WANG Ziying,et al.Recent progress in cat- |
11 | hode materials research for advanced lithium ion batteries[J].Materials Science and Engineering:R:Reports,2012,73(5/6):51-65. |
12 | 李化全,张华军,郭传华.利用钛白副产硫酸亚铁制备正极材料磷酸铁锂的研究[J].山东化工,2018,47(4):27-28,34. |
12 | LI Huaquan, ZHANG Huajun, GUO Chuanhua.A study on lithium |
12 | iron phosphate was prepared by using titanium dioxide as a byproduct of ferrous sulfate[J].Shandong Chemical Industry,2018,47(4):27-28,34. |
13 | 郭举.钛白渣提纯制备电池级硫酸亚铁工艺技术研究[J].无机盐工业,2019,51(8):48-51. |
13 | GUO Ju.Study on preparation of battery-grade ferrous sulfate by purification of titanium white slag[J].Inorganic Chemicals Industry,2019,51(8):48-51. |
14 | 张克宇,吴鉴,高腾飞,等.结晶法提纯钛白副产硫酸亚铁的数学模型与实验研究[J].高校化学工程学报,2016,30(2):371-377. |
14 | ZHANG Keyu, WU Jian, GAO Tengfei,et al.Simulation and experimental studies on purification of ferrous sulfate from titanium dioxide byproducts by crystallization[J].Journal of Chemical Engineering of Chinese Universities,2016,30(2):371-377. |
15 | 刘世琦.一种电池级七水硫酸亚铁晶体的制备方法:中国,105293588[P].2007-03-22. |
15 | LIU Shiqi.A preparation method of battery grade ferrous sulfate heptahydrate crystal:CN,105293588[P].2007-03-22. |
16 | 张克宇,吴鉴,周朝金,等.结晶法提纯钛白副产硫酸亚铁[J].有色金属工程,2017,7(2):10-15. |
16 | ZHANG Keyu, WU Jian, ZHOU Chaojin,et al.Purification of ferrous sulfate byproduct from titanium dioxide by crystallization process[J].Nonferrous Metals Engineering,2017,7(2):10-15. |
17 | 舒均杰,田伟军.由钛白废酸和硫铁矿烧渣制备饲料级硫酸亚铁[J].无机盐工业,2009,41(2):50-52. |
17 | SHU Junjie, TIAN Weijun.Preparation of feed-grade ferrous sulfate by waste acid from titanium dioxide production and pyrite cinder[J].Inorganic Chemicals Industry,2009,41(2):50-52. |
18 | 李建文.硫酸亚铁干燥条件及干燥特性的研究[J].饲料工业,1996,17(6):10-12. |
18 | LI Jianwen.Study on drying conditions and drying characteristics of ferrous sulfate [J].Feed Industry,1996,17(6):10-12. |
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