Determination of Rare Earth Elements and Aluminum in Samples of FCC Waste Slag Acid Leaching Process

被引：0

作者：

Wang J. ^{[1
]}

Li M. ^{[1
]}

Hu B. ^{[1
]}

Xu Y. ^{[1
]}

Feng Z. ^{[1
]}

Huang X. ^{[1
]}

机构：

[1] Grirem Advanced Materials Co., Ltd., National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, Beijing

来源：

Xiyou Jinshu/Chinese Journal of Rare Metals | 2019年 / 43卷 / 03期

关键词：

Aluminum; FCC waste slag; ICP-AES; Rare earths;

D O I：

10.13373/j.cnki.cjrm.XY17080035

中图分类号：

学科分类号：

摘要：

FCC waste slag is a kind of solid waste containing aluminum (Al) and rare earth elements (REEs), which was produced during the production of fluid catalytic cracking catalyst (FCC catalyst). Acid leaching was applied to recovery REEs and Al from FCC waste slag. Thus, the concentration of REEs and Al in the FCC waste slag, acid leaching solution and leaching residue were needed to be analyzed to evaluate the leaching efficiencies of valuable metals. Given that Al concentration was higher than that of REEs in the acid leaching samples and the numbers of experiments samples were large, it was difficult to analyze the concentration of REEs and Al in the samples precisely and efficiently by volumetric method. Thus an inductively coupled plasma-atomic e-mission spectrometry (ICP-AES) method was established to analyze concentration of REEs and Al in FCC waste slag acid leaching samples. By drawing working curves and analyzing emission spectrum, the effect of Al matrix on REEs analyzing was detected. Furthermore, precision test and standard addition recovery test were applied to affirm the veracity of the method. Results showed that the method detection limits of Al, La and Ce were 0.04, 0.06 and 0.09 μg•ml-1, respectively. Standard addition recoveries of the three metals were in the range of 95% to 105%. The relative standard deviation of tested elements could be less than 2%. The materials balance of actual leaching samples were achieved, which indicated that the method was suitable for FCC waste acid leaching research. This method offered an analysis guarantee in research of valuable metals recovery form FCC waste slag. © Editorial Office of Chinese Journal of Rare Metals. All right reserved.

引用

页码：331 / 336

页数：5

共 19 条

[1] Akcil A., Veglio F., Ferella F., A review of metal recovery from spent petroleum catalysts and ash, Waste Manage, 45, (2015)
[2] Velazquez S., Monzo J., Borrachero M.V., Soriano L., Paya J., Evaluation of the pozzolanic activity of spent FCC catalyst/fly ash mixtures in Portland cement pastes, Thermochimica Acta, 632, (2016)
[3] Wang L.S., Huang X.W., Yu Y., Zhao L.S., Wang C.M., Feng Z.Y., Cui D.L., Long Z.Q., Towards cleaner production of rare earth elements from bastnaesite in China, Journal of Cleaner Production, 165, (2017)
[4] Long Z.Q., Huang X.W., Li H.W., Yu Y., Liu J.L., Cui D.L., Cui M.S., Zhao N., Guo S.X., Method for recovering rare earth from rare earth-containing aluminum-silicon materials, (2010)
[5] Wang J.Y., Huang X.W., Wang L.S., Wang Q., Yan Y.N., Zhao N., Cui D.L., Feng Z.Y., Kinetics study on the leaching of rare earth and aluminum from FCC catalyst waste slag using hydrochloric acid, Hydrometallurgy, 171, (2017)
[6] Wang J.Y., Hang X.W., Cui D.L., Wang L.S., Feng Z.Y., Hu B., Long Z.Q., Long N., Recovery of rare earths and aluminum from FCC waste slag by acid leaching and selective precipitation, Journal of Rare Earth, 35, 11, (2017)
[7] Rare Earth Metallurgy Analysis Manual, (1994)
[8] Martin V., Vasileios M., Oelkers Eric H., The experimental determination of REE partition coefficients in the water-calcite system, Chemical Geology, 462, (2017)
[9] Zhang C., Wang L.S., Huang X.W., Dong J.S., Long Z.Q., Zhang Y.Q., Yttrium extraction from chloride solution with a synergistic system of 2-ethylhexyl phosphonic acid mono-(2-ethylhexyl) ester and bis(2, 4, 4-trimethylpentyl) phosphinic acid, Hydrometallurgy, 8, (2014)
[10] Eid M.A., Naim G., Mahdy A.A., Nada N., Abdel Mongy S., Application of ICP AES to the determination of REE in Egypt's black sand deposits, Journal of Alloys and Compounds, 207, (1994)

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