Selected elements cations exchange in acidic medium on sorbents surface based on modified brown coal

Stempkowska Agata (), Izak Piotr and Mastalska-Popławska Joanna
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Stempkowska Agata: Dr. inż., AGH Akademia Górniczo-Hutnicza, Wydział Górnictwa i Geoinżynierii, Kraków, Poland
Izak Piotr: Dr. hab. inż., AGH Akademia Górniczo-Hutnicza, Wydział Inżynierii Materiałowej i Ceramiki, Kraków, Poland
Mastalska-Popławska Joanna: Dr. AGH Akademia Górniczo-Hutnicza, Wydział Inżynierii Materiałowej i Ceramiki, Kraków, Poland

Gospodarka Surowcami Mineralnymi / Mineral Resources Management, 2017, vol. 33, issue 1, 139-150

Abstract: Studies on the sorption and desorption of selected Na+, Ca2+, Mg2+, Mn2+, Cu2+ and Cr3+ cations by materials based on modified brown coal were carried out. The chemical modification of the sorbent material consisted of grinding involving different inorganic substances and organic polymers. Samples were subjected to chemical modification at elevated temperatures for several hours. For comparative purposes, as apart from brown coal, pure humic acids are known for the highest cations exchange capacity, samples of brown coal before and after purification were also analyzed. The ion capacity was determined under static conditions, measuring the difference in the concentration of cations in the sorbent before and after sorption and then after rinsing the sorbent with distilled water (A), and after the desorption process with hydrochloric acid (B).

Keywords: cations exchange; sorption; brown coal (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:vrs:gosmin:v:33:y:2017:i:1:p:139-150:n:2

DOI: 10.1515/gospo-2017-0002

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