Lithium recovery from geothermal brine - an investigation into the desorption of lithium ions using manganese oxide adsorbents
877 885 Spinel type lithium manganese oxides (LMOs) are promising adsorption materials for selective recovery of lithium from salty brines. In this work a lithium-ion sieve material, H1.6Mn1.6O4, derived from Li1.6Mn1.6O4, a spinel type LMO, was successfully prepared via hydrothermal synthesis. This...
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ftfrauneprints:oai:publica.fraunhofer.de:publica/439498 2023-07-16T03:57:58+02:00 Lithium recovery from geothermal brine - an investigation into the desorption of lithium ions using manganese oxide adsorbents Herrmann, Laura Ehrenberg, Helmut Graczyk-Zajac, Magdalena Kaymakci, Elif Kölbel, Thomas Kölbel, Lena Tübke, Jens 2022-11 application/pdf https://publica.fraunhofer.de/handle/publica/439498 https://doi.org/10.1039/d2ya00099g https://doi.org/10.24406/publica-1188 en eng Energy Advances 2753-1457 doi:10.1039/d2ya00099g doi:10.24406/publica-1188 https://publica.fraunhofer.de/handle/publica/439498 https://doi.org/10.24406/publica-1188 CC BY-NC 4.0 journal article 2022 ftfrauneprints https://doi.org/10.1039/d2ya00099g10.24406/publica-1188 2023-06-25T23:43:39Z 877 885 Spinel type lithium manganese oxides (LMOs) are promising adsorption materials for selective recovery of lithium from salty brines. In this work a lithium-ion sieve material, H1.6Mn1.6O4, derived from Li1.6Mn1.6O4, a spinel type LMO, was successfully prepared via hydrothermal synthesis. This lithium-ion sieve, H1.6Mn1.6O4, was then used in laboratory tests to adsorb Li+ from a generic LiCl solution and geothermal brine from Bruchsal geothermal power plant. Desorption experiments were performed with the following desorption solutions: ammonium peroxydisulfate ((NH4)2S2O8), sodium peroxydisulfate (Na2S2O8), acetic acid (CH3COOH), sulfuric acid (H2SO4), carbonic acid (H2CO3), ascorbic (C6H8O6) and hydrochloric acid (HCl). The results showed that C6H8O6 led to adsorbent destruction and only small amount of lithium was desorbed with H2CO3. CHC3COOH and (NH4)2S2O8 showed the best desorption performance with high lithium recovery and low Mn dissolution. The kinetic experiments indicate that more than 90% of equilibrium was reached after 4 hours. A decline in the adsorption/desorption capacity was measured for all desorption agents after eight cycles in the long-term experiments. These long-term tests revealed that higher lithium recovery in desorption with HCl and CH3COOH was achieved compared to (NH4)2S2O8. On the other hand, the use of CH3COOH and (NH4)2S2O8. seems to be advantageous to HCl because of lower Mn dissolution. According to the XRD results, the spinel structure of the treated adsorbents was preserved, but a weakening of the peak intensity was observed. Analyzing the adsorbent composition after eight cycles, an accumulation of competing ions was observed. This was especially remarkable when acetic acid was used. 1 11 Article in Journal/Newspaper Carbonic acid Publikationsdatenbank der Fraunhofer-Gesellschaft |
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877 885 Spinel type lithium manganese oxides (LMOs) are promising adsorption materials for selective recovery of lithium from salty brines. In this work a lithium-ion sieve material, H1.6Mn1.6O4, derived from Li1.6Mn1.6O4, a spinel type LMO, was successfully prepared via hydrothermal synthesis. This lithium-ion sieve, H1.6Mn1.6O4, was then used in laboratory tests to adsorb Li+ from a generic LiCl solution and geothermal brine from Bruchsal geothermal power plant. Desorption experiments were performed with the following desorption solutions: ammonium peroxydisulfate ((NH4)2S2O8), sodium peroxydisulfate (Na2S2O8), acetic acid (CH3COOH), sulfuric acid (H2SO4), carbonic acid (H2CO3), ascorbic (C6H8O6) and hydrochloric acid (HCl). The results showed that C6H8O6 led to adsorbent destruction and only small amount of lithium was desorbed with H2CO3. CHC3COOH and (NH4)2S2O8 showed the best desorption performance with high lithium recovery and low Mn dissolution. The kinetic experiments indicate that more than 90% of equilibrium was reached after 4 hours. A decline in the adsorption/desorption capacity was measured for all desorption agents after eight cycles in the long-term experiments. These long-term tests revealed that higher lithium recovery in desorption with HCl and CH3COOH was achieved compared to (NH4)2S2O8. On the other hand, the use of CH3COOH and (NH4)2S2O8. seems to be advantageous to HCl because of lower Mn dissolution. According to the XRD results, the spinel structure of the treated adsorbents was preserved, but a weakening of the peak intensity was observed. Analyzing the adsorbent composition after eight cycles, an accumulation of competing ions was observed. This was especially remarkable when acetic acid was used. 1 11 |
format |
Article in Journal/Newspaper |
author |
Herrmann, Laura Ehrenberg, Helmut Graczyk-Zajac, Magdalena Kaymakci, Elif Kölbel, Thomas Kölbel, Lena Tübke, Jens |
spellingShingle |
Herrmann, Laura Ehrenberg, Helmut Graczyk-Zajac, Magdalena Kaymakci, Elif Kölbel, Thomas Kölbel, Lena Tübke, Jens Lithium recovery from geothermal brine - an investigation into the desorption of lithium ions using manganese oxide adsorbents |
author_facet |
Herrmann, Laura Ehrenberg, Helmut Graczyk-Zajac, Magdalena Kaymakci, Elif Kölbel, Thomas Kölbel, Lena Tübke, Jens |
author_sort |
Herrmann, Laura |
title |
Lithium recovery from geothermal brine - an investigation into the desorption of lithium ions using manganese oxide adsorbents |
title_short |
Lithium recovery from geothermal brine - an investigation into the desorption of lithium ions using manganese oxide adsorbents |
title_full |
Lithium recovery from geothermal brine - an investigation into the desorption of lithium ions using manganese oxide adsorbents |
title_fullStr |
Lithium recovery from geothermal brine - an investigation into the desorption of lithium ions using manganese oxide adsorbents |
title_full_unstemmed |
Lithium recovery from geothermal brine - an investigation into the desorption of lithium ions using manganese oxide adsorbents |
title_sort |
lithium recovery from geothermal brine - an investigation into the desorption of lithium ions using manganese oxide adsorbents |
publishDate |
2022 |
url |
https://publica.fraunhofer.de/handle/publica/439498 https://doi.org/10.1039/d2ya00099g https://doi.org/10.24406/publica-1188 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
Energy Advances 2753-1457 doi:10.1039/d2ya00099g doi:10.24406/publica-1188 https://publica.fraunhofer.de/handle/publica/439498 https://doi.org/10.24406/publica-1188 |
op_rights |
CC BY-NC 4.0 |
op_doi |
https://doi.org/10.1039/d2ya00099g10.24406/publica-1188 |
_version_ |
1771544881134567424 |