Alternative Silver Production by Environmental Sound Processing of a Sulfo Salt Silver Mineral Found in Bolivia

Autor: Alexander Birich, Bernd Friedrich, Lars Gronen, Janet Katzmarzyk, Ivan Silin, Hermann Wotruba

Publikováno v: Metals, Vol 8, Iss 2, p 114 (2018)

Very often, the production of silver causes devastating environmental issues, because of the use of toxic reagents like cyanide and mercury. Due to severe environmental damage caused by humans in the last decades, the social awareness regarding the s

Externí odkaz: https://doaj.org/article/12c8de9d26194d0b8ad0b8be9c869d81

Selective silica gel free scandium extraction from Iron-depleted red mud slags by dry digestion

Autor: Yiqian Ma, Lars Gronen, Gözde Alkan, Carsten Dittrich, Bernd Friedrich, Srecko Stopic, Bengi Yagmurlu

Publikováno v: Hydrometallurgy : an international journal devoted to all aspects of the aqueous processing of metals 185, 266-272 (2019). doi:10.1016/j.hydromet.2019.03.008
Hydrometallurgy

Hydrometallurgy : an international journal devoted to all aspects of the aqueous processing of metals 185, 266-272 (2019). doi:10.1016/j.hydromet.2019.03.008
Published by Elsevier Science, Amsterdam [u.a.]

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39c65d97a409c742ed471569c1a548d5
https://doi.org/10.1016/j.hydromet.2019.03.008

Recovery of Zr, Hf, Nb from eudialyte residue by sulfuric acid dry digestion and water leaching with H2O2 as a promoter

Autor: Lars Gronen, Bernd Friedrich, Yiqian Ma, Srecko Stopic

Publikováno v: Hydrometallurgy. 181:206-214

Following the initial hydrometallurgical extraction of rare earth elements from the eudialyte mineral, the residue is known to contain additional valuable metals. In this reported study, a two-stage acidic treatment was investigated to extract Zr, Hf

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be28c221e2a42f3e2dfbf838d243fb96
https://doi.org/10.1016/j.hydromet.2018.10.002

Mineralogical and Chemical Characterization of Zr-REE-Nb Ores from Khalzan Buregtei (Mongolia)—Approaches to More Efficient Extraction of Rare Metals from Alkaline Granitoids

Autor: Udo Bormann, Sven Sindern, Janet Lucja Katzmarzyk, Lars Gronen, Hermann Wotruba, F. Michael Meyer, André Hellmann

Publikováno v: Minerals, Vol 9, Iss 4, p 217 (2019)
Minerals
Volume 9
Issue 4
Minerals 9(4), 217 (2019). doi:10.3390/min9040217 special issue: "Special Issue "Applications of SEM Automated Mineralogy: From Ore Deposits over Processing to Secondary Resource Characterization" / Special Issue Editor: Bernhard Schulz, Guest Editor"

Minerals 9(4), 217 (2019). doi:https://doi.org/10.3390/min9040217 special issue: "Applications of SEM Automated Mineralogy: From Ore Deposits over Processing to Secondary Resource Characterization"
Published by MDPI, Basel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e11f9912880284d4987b6d8b8c5db5c
https://www.mdpi.com/2075-163X/9/4/217

Heavy metals in river and coast sediments of the Jakarta Bay region (Indonesia) — Geogenic versus anthropogenic sources

Autor: Tuti Hartati Siregar, Martin Tremöhlen, Sven Sindern, Farida Ariyani, Jan Schwarzbauer, Larissa Dsikowitzky, Lars Gronen, Hari Eko Irianto

Publikováno v: Marine Pollution Bulletin. 110:624-633

Sediment geochemistry of the Jakarta region, a densely populated tropical coast, is studied — with particular focus on rivers discharging to Jakarta Bay. Weathering volcanics in the river catchment area control the composition of major elements, As

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5203fb44f4c4e8d0375437f0ee030170
https://doi.org/10.1016/j.marpolbul.2016.06.003