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Acid leaching of lanthanum from spent cracking catalyst

  • Inorganic Synthesis and Industrial Inorganic Chemistry
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Abstract

Fundamental aspects were studied of the acid leaching of lanthanum from a spent cracking catalyst, a composite material constituted by an amorphous aluminosilicate matrix and a lanthanum-promoted zeolite. It was demonstrated that the degree of lanthanum leaching depends on the nature and concentration of the leaching agent, temperature, and process duration. It was found that the acid leaching of lanthanum is accompanied by dealuminization of the matrix and zeolite, which leads to activation of the sorption processes of the solid residue.

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References

  1. US Patent no. 4539761 (publ. 1985).

  2. Al-Dhamri, H. and Melghit, K., J. Hazard. Mater., 2010, no. 179, pp. 852–859.

    Google Scholar 

  3. Taha, R., Al-Kamyani, Z., Al-Jabri, K., et al., J. Hazard. Mater., 2012, no. 203, pp. 765–769.

    Google Scholar 

  4. Antiohos, S., Chouliar, E., and Tsimas, S., China Particuol., 2006, vol. 4, no. 2, pp. 73–76.

    Article  CAS  Google Scholar 

  5. Japan Patent no. 2007-231382, 2007.

  6. Liangshi, W., Zhiqi, L., Xiaowei, H., et al., Hydrometallurgy, 2010, vol. 101, nos. 1–2, pp. 41–47.

    Google Scholar 

  7. RU Patent WO2014074029 A1, 2014.

  8. RF Patent no. 2293134, 2007.

  9. US Patent no. 8216532 B1, 2012.

  10. Panayotova, M. and Panayotov, V., Annual of the University of Mining and Geology St. Ivan Rilski, Part II, Mining and Mineral Processing, 2012, vol. 55, pp. 142–147.

    Google Scholar 

  11. Pecht, M.G., Kaczmarek, R.E., Song, X., et al., Rare Earth Materials Insights and Concerns Center for Energetic Concepts, Maryland: University of Maryland, College Park, 2012.

    Google Scholar 

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Correspondence to I. Yu. Kozlowskaya.

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Original Russian Text © I.Yu. Kozlowskaya, V.N. Martsul’, 2014, published in Zhurnal Prikladnoi Khimii, 2014, Vol. 87, No. 12, pp. 1735–1741.

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Kozlowskaya, I.Y., Martsul’, V.N. Acid leaching of lanthanum from spent cracking catalyst. Russ J Appl Chem 87, 1817–1822 (2014). https://doi.org/10.1134/S1070427214120040

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  • DOI: https://doi.org/10.1134/S1070427214120040

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