INFLUENCE THE TEMPERATURE AND CONCENTRATION OF LEAD (II) ON ITS SORPTION BY ACIDOMODIFICATED ZEOLITE FROM CONCENTRATED PHOSPHORIC ACID

Abstract

The sorption of lead (II) cations from concentrated phosphoric acid (85.2 %) was studied by the acid-modified zeolite of the Shankanay deposit. The mutual influence of temperature and concentration of Pb2+ cations on the process of their sorption is revealed, the time has no significant effect. The sorption curves of the dependence of the residual content of lead (II) on the temperature in phosphoric acid with a content of 10 and 55 mg/Pb have a minimum at 43 °C, corresponding to its maximum absorption. in phosphoric acid with CPb equal to 28 mg/l with increasing temperature, the sorption curves increase, and with CPb equal to 100 mg/l - decrease, respectively, the degree of sorption decreases and increases. The curves for the residual content of lead (II), depending on its concentration up to 30 °C, have a minimum at CPb of 28 mg/l, corresponding to a high degree of lead sorption (99.099.6 %), and in the range from 45 to 70 °C - a maximum characterizing the lower degree of Pb absorption. Moreover, the maximum on the sorption curves with increasing temperature shifts to a region of solutions less concentrated in lead content. The appearance of a maximum or minimum on the sorption curves of Pb2+ cations is due to the desorption process, when under the conditions under study the sorbed cations from the zeolite exit to the solution.

References

[1] Korkuna O., Leboda R., Skubizewska-Zieba J. Structural and physicochemical properties of natural zeolitesi clinoptilolite and mordenite // Microporous and Mesoporous Mat. 2006. Vol. 87. P. 243-254.
[2] Deepa P. Zeolite as adsorbent for the removal of lead // J. Chem., Biolog., Phys. Scien. 2015. Vol. 5, N 2. P. 964-969.
[3] Castaldi P., Santona L. Sorption processes and XRD analysis of a natural zeolite exchanged with Pb2 +, Cd2 + and Zn2 + cations // J. Haz. Mat. 2008. Vol. 156, N 3. P. 428-434.
[4] Erdem E., Karapinar N., Donat R. The removal of heavy metals by natural zeolites // J. Colloid and Inter. Scien. 2004. Vol. 280, N 3. P. 309-314.
[5] Dementiev S.N. New approaches to the study of the physicochemical properties of zeolites. Novosibirsk: IGiGCO AS USSR, 1989. 103 p.
[6] Sprynskyy M., Golembiewski R., Trykowski G., Buszewski B. Heterogeneity and hierarchy of clinoptilolite porosity // J. of Physics and Chemistry of Solids. 2010. Vol. 71. P. 1269-1277.
[7] Razmakhnin K.K., Khatkova A.N. Modification of properties of zeolites for the purpose of expanding their application areas // Mining Inform-Analytical: newsletter. 2011. N 4. P. 246-252.
[8] Shevchenko T.V., Klimov E.S., Buzaeva M.V. Wastewater treatment with non-traditional sorbents. Ulyanovsk: UlSTU, 2011. 201 p.
[9] Kowalczyk P., Myroslav S., Artur P. T. Porous structure of natural and modified clinoptilolites // J. of Colloid and Interface Science. 2006. Vol. 297. P. 77-85.
[10] Garcia-Basabe Y., Rodriguez-Iznaga I., Menorval M. Step-wise dealumination of natural clinoptilolite: Structural and physicochemical characterization // Microporous and Mesoporous Mat. 2010. Vol. 135, N 1-3. P. 187-196.
[11] Moreno P.V., Arellano J.J.C., Ramırez H.B. Characterization and preparation of porous membranes with a natural Mexican zeolite // J. Phys. Condens. Matter. 2004. Vol. 16. P. 2345-2352.
[12] Groen J.C., Peffer L.A., Perez J.R. Pitfalls and Limitation in gas adsorption data analysis pore size determination in modified micro- and mesoporous materials // Microporous and Mesoporous Mater. 2003. Vol. 60. P. 1-17.
[13] Khankhalaeva S.T., Badmaeva S.V., Dashinamshilova E.T. Influence of modification on structural, acidic and catalytic properties of layered aluminosilicate // Kinetics and catalysis. 2004. Vol. 45, N 5. P. 748-753.
[14] Belchinskaya L.I. et al., Study of structural and adsorption characteristics in the activa- tion and modification of natural silicates // Sorption and chromatographic processes. 2007. Vol. 7. P. 571-576.
[15] Çakicioglu-Ozkan F., Ülkü S. // Microporous and Mesoporous Mat. 2005. Vol. 77. P. 47-53.
[16] Beyer H.K. Dealumination Techniques for Zeolites, Molecular Sieves // Science and Technology. 2002. Vol. 3. P. 203-255.
[17] Sokol A.A., Catlow C.R.A., Garcés J.M. at al. Transformation of hydroxyl nests in microporous aluminosilicates upon annealing // J. Phys. Condens. Matter. 2004. Vol. 16, N 27. P. 2781-2794.
[18] Alexandrova V.S., Zykova O.P., Markiv E.Ya. Ion-exchange properties and IR spectra of natural clinoptilolite modified with titanium hydroxyphosphates // Zh. prikl. Chemistry. 2004. Issue 1. P. 32-35.
[19] Kotova D.L., Do Thi Long, Krysanova T.A., Bolotova M.S., Vasilyeva S.Yu. Acid activation of clinoptilolite tuff of the deposit of the Subpolar Urals of Ugra // Izvestiya Vuzov. Chemistry and chemical technology. 2012. Vol. 55, N 4. P. 100-104.
[20] Kotova D.L., Do Thi Long, Krysanova T.A., Selemenev V.F. Effect of acid activation on the sorption of phenylalanine on clinoptilolite tuff // Zhurn. fiz. chemistry. 2011. P. 85, N 12. P. 2365-2369.
[21] Belchinskaya L.I., Tkacheva O.A., Lavlinskaya O.V., Anisimov M.V. Adsorption of formaldehyde by activated fillers of urea-formaldehyde resins. Voronezh: OPS FGBOU HPE "VGLTA", 2014. 224 p.
[22] Aref A., Abdullateef I., Amer M. Xinrong L., Hongquan W., Chunjie Y. The investigation into the ammonium removal performance of Yemeni natural zeolite: Modification, ion exchange mechanism, and thermodynamics // Powder Technology. 2014. Vol. 258, N 1. P. 20-31.
[23] Rakitskaya T.L., Raskola L.A., Kiose T.A., Yarchuk A.V., Korotkova A.S. Adsorption and protective properties of modified clinoptilolite with respect to sulfur dioxide // News of ONU. Хімія. 2014. Vol. 19, vip. 1(49). P. 52-58.
[24] Rahmani A., Nouri J., Kamal Gh., Mahvi A.H., Zare M.R. Adsorption of fluoride from water by Al3 + and Fe3 + pretreated natural Iranian zeolites // Int. J. Environ. Res. 2010. Vol. 4, N 4. P. 607-614.
[25] Arutyunyan R.S., Arutyunyan L.R., Petrosyan I.A., Badalyan G.G., Sergsyan A.O., Kuznetsova T.F., Ivanets A.I. Sorption of iron ions (III) from wines by zeolites treated with acid // Izv. Universities. Applied chemistry and biotechnology. Irkutsk: Ir. Nat. Issl. T.U., 2017. Vol. 7, N 1. P. 111-118.
[26] Akhnazarova S.L., Kafarov V.V. Optimization of the experiment in chemistry and chemical technology. M.: Higher School, 1985. 327 p.