Sorption-desorption properties of titanium phosphate towards heavy metal cations

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The sorption/desorption behavior of divalent ions (Cu2+, Mn2+,Co2+, Ni2+) on amorphous titanium phosphate is studied.The sorption/desorption equilibrium is shown to be largely determined bythe solvated state of heavy metal cations; selectivity series areconstructed. Regardless of the degree of saturation of the sorbentwith cations of the metals being studied, the desorption degreeexceeds 99.9% in all cases. With multi-stage use of thesorbent, the efficiency of sorption/desorption processes is established to decreasebecause of its dehydration due to hydrolysis of the sorbent,which is 2.6 10–3 mg g–1·h–1. The efficiencyof sorption/desorption of the ions from multicomponent solutions is shown.

作者简介

M. Maslova

I. V. Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences» (ICT KSC RAS)

Email: m.maslova@ksc.ru
Apatity, Murmansk region, Russia

P. Evstropova

I. V. Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences» (ICT KSC RAS)

Email: m.maslova@ksc.ru
Apatity, Murmansk region, Russia

N. Mudruk

I. V. Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences» (ICT KSC RAS)

Email: n.mudruk@ksc.ru
Apatity, Murmansk region, Russia

Yu. Semushina

I. V. Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences» (ICT KSC RAS)

编辑信件的主要联系方式.
Email: m.maslova@ksc.ru
Apatity, Murmansk region, Russia

参考

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