Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Alena Fedoročková"'
Publikováno v:
Acta Montanistica Slovaca, Vol 15, Iss 3, Pp 232-237 (2010)
Leaching of particulate dead-burned magnesite with hydrochloric acid at 45 °C was investigated with special regard to the effectof acid concentration (from 0.1 M to 4.8 M) on the rate of chemical dissolution of magnesium, calcium and iron. The leach
Externí odkaz:
https://doaj.org/article/ce6e0d40f08f41ea954efef9182217e5
Publikováno v:
Acta Montanistica Slovaca, Vol 14, Iss 1, Pp 33-37 (2009)
The thermal treatment of serpentine from the locality Ljeskovac, Croatia, was studied in order to reach optimum characteristicsfor the inorganic acid leaching process. The fine and pure hydromagnesite and silica powder are main final products of the
Externí odkaz:
https://doaj.org/article/fe62b45a83ac44d69081adb223c4599e
Publikováno v:
Acta Montanistica Slovaca, Vol 12, Iss 3, Pp 212-216 (2007)
Thorough kinetic analysis of the magnesia leaching based on measuring the changes in lixiviant composition revealed that there are differences between the actual leaching behaviour and predictions obtained using the non-porous shrinking particle mode
Externí odkaz:
https://doaj.org/article/b7a152b80c0f475190b1390f50f8c10d
Publikováno v:
Acta Metallurgica Slovaca, Vol 21, Iss 3 (2015)
The dissolving potential of the Ca–minerals in concrete and limestone; and precipitation potential of metal ions from model acid water has been examined with attention to change of pH during the batch tests (L/S ratio = 300 ml /0.5 g, L = model sol
Externí odkaz:
https://doaj.org/article/b21eec73294b45ffa2bdb93054e41b42
Publikováno v:
Minerals
Volume 11
Issue 11
Minerals, Vol 11, Iss 1153, p 1153 (2021)
Volume 11
Issue 11
Minerals, Vol 11, Iss 1153, p 1153 (2021)
A laboratory method was designed and verified that allows for the testing of alkaline, magnesite-based reactive materials for permeable reactive barriers (PRBs) to remove heavy metals from contaminated groundwater. It was found that caustic calcined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d62b45d2d7c1018e577fedb3f7eac682
Autor:
Alena Fedoročková, Martin Vavra, Beatrice Plešingerová, Mária Kovaľaková, Ľuboš Popovič, Gabriel Sučik
Publikováno v:
RSC advances. 10(54)
Precipitated ammonium aluminium carbonate hydroxide (NH4Al(OH)2CO3) is a promising precursor for preparation of nanostructured Al2O3. However, the experimental conditions, such as the low concentration of Al3+ salt solution, high temperature and/or p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::305a810d35b7ae3ccf207b3c22cbb09f
https://pubmed.ncbi.nlm.nih.gov/35516472
https://pubmed.ncbi.nlm.nih.gov/35516472
Publikováno v:
Mineral Processing and Extractive Metallurgy Review. 37:287-294
This study demonstrates an efficient synthesis of highly reactive silica using hydrometallurgical processing of serpentinite tailings. Proposed process uses two-stage (acid and alkaline) leaching of serpentinite tailings and precipitation of silica f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::511def01ece2bff1dc39b8b92f8f1285
https://doi.org/10.1080/08827508.2016.1195738
https://doi.org/10.1080/08827508.2016.1195738
Publikováno v:
Hydrometallurgy. 196:105441
A generalized non-porous shrinking particle model (G NSPM) of leaching has been verified and used for numerical simulations. Unlike the commonly used “simple” non-porous shrinking particle model (S NSPM), the G NSPM assumes n−th order chemical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f72d0aeee71376256d563b079d2e56b
https://doi.org/10.1016/j.hydromet.2020.105441
https://doi.org/10.1016/j.hydromet.2020.105441
Publikováno v:
Solid State Phenomena. 244:221-227
Permeable reactive barriers (PRBs) are passive, in-situ remediation systems that comprise the filtration of a contaminated groundwater through a reactive media able to degrade, adsorb or precipitate the pollutants. Selection of the reactive media dep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38fd7f6a45ff5d6aa11b17ac80e503bd
https://doi.org/10.4028/www.scientific.net/ssp.244.221
https://doi.org/10.4028/www.scientific.net/ssp.244.221
Publikováno v:
Acta Metallurgica Slovaca, Vol 21, Iss 3 (2015)
Slovakia holds 4th to 5th position in the world with respect to the supplies and mining output of magnesite. The most important product of natural magnesite processing is magnesia. While dead-burnt magnesia is used for producing basic refractory mate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07f1919b6d0b55764f462413729aaf2d
https://doi.org/10.12776/ams.v21i3.536
https://doi.org/10.12776/ams.v21i3.536