Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Lotta Rintala"'
Publikováno v:
Minerals, Vol 9, Iss 7, p 404 (2019)
Iron control in the atmospheric acid leaching (AL) of nickel laterite was evaluated in this study. The aim was to decrease acid consumption and iron dissolution by iron precipitation during nickel leaching. The combined acid leaching and iron precipi
Externí odkaz:
https://doaj.org/article/3e70694fc22e40b2864485376b8d06a4
Assessing the Similarity of Cyanide-Free Gold Leaching Processes: A Case-Based Reasoning Application
Publikováno v:
Minerals, Vol 8, Iss 10, p 434 (2018)
Hydrometallurgical researchers, and other professionals alike, invest significant amounts of time reading scientific articles, technical notes, and other scientific documents, while looking for the most relevant information for their particular resea
Externí odkaz:
https://doaj.org/article/139f240036574d41956e9235fda67810
Publikováno v:
Metals, Vol 8, Iss 1, p 40 (2018)
Pyrometallurgical metal production results in side streams, such as dusts and slags, which are carriers of metals, though commonly containing lower metal concentrations compared to the main process stream. In order to improve the circular economy of
Externí odkaz:
https://doaj.org/article/73229511c5744229ba2657961712b548
Publikováno v:
Elomaa, H, Sinisalo, P, Rintala, L, Aromaa, J & Lundström, M 2020, ' Process simulation and gate-to-gate life cycle assessment of hydrometallurgical refractory gold concentrate processing ', International Journal of Life Cycle Assessment, vol. 25, no. 3, pp. 456-477 . https://doi.org/10.1007/s11367-019-01723-6
Purpose Currently, almost all cyanide-free gold leaching processes are still in the development stage. Proactively investigating their environmental impacts prior to commercialization is of utmost importance. In this study, a detailed refractory gold
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3837cb2217e8961db56ad923f7c197be
https://cris.vtt.fi/en/publications/c6536e9a-967d-4c49-97be-f2535f58de27
https://cris.vtt.fi/en/publications/c6536e9a-967d-4c49-97be-f2535f58de27
Publikováno v:
Leikola, M, Sauer, C, Rintala, L, Aromaa, J & Lundström, M 2020, ' Assessing similarities between gold ores, concentrates, and tailings with case-based reasoning ', Minerals Engineering, vol. 146, 106113 . https://doi.org/10.1016/j.mineng.2019.106113
Searching for information has always been a challenge for a researcher. Decades ago it was a matter of gaining access to the information, but in this day and age, the problem is more about how to find the most relevant information amongst the ever-gr
Publikováno v:
Hakala, J, Kangas, P, Rintala, L, Fabritius, T & Koukkari, P 2020, ' Biocarbon from bark or black pellets as an alternative for coal in steelmaking–techno-economic evaluation ', Scandinavian Journal of Forest Research, vol. 35, no. 8, pp. 532-546 . https://doi.org/10.1080/02827581.2020.1843704
In 2018, global crude steel production was approx. 1.8 gigatonnes while its direct CO2 emissions stood at 2 giga tonnes (2017), representing 23.5% of all direct industrial emissions. Globally iron and steel industry (ISI sector) is the second largest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1368b50d71d5759833c50030d9ba3efe
http://urn.fi/urn:nbn:fi-fe202101071217
http://urn.fi/urn:nbn:fi-fe202101071217
Autor:
Petri Latostenmaa, Olof Forsén, Taina Kalliomäki, Jari Aromaa, Mari Lundström, Lotta Rintala, Iiro Lehtiniemi
Publikováno v:
Lehtiniemi, I, Kalliomäki, T, Rintala, L, Latostenmaa, P, Aromaa, J, Forsén, O & Lundström, M 2018, ' Validation of electrolyte conductivity models in industrial copper electrorefining ', Minerals and Metallurgical Processing, vol. 35, no. 3, pp. 117-124 . https://doi.org/10.19150/mmp.8460
Conductivity is a typical physico-chemical property that has a substantial effect on electrical energy consumption in the electrorefining process. The objective of this study was to examine the validity of regression models predicting the conductivit
Publikováno v:
Elomaa, H, Rintala, L, Aromaa, J & Lundström, M 2018, ' Open circuit potential and leaching rate of pyrite in cupric chloride solution ', Canadian Metallurgical Quarterly, vol. 57, no. 4, pp. 416-421 . https://doi.org/10.1080/00084433.2018.1477652
As a refractory gold mineral, pyrite needs to be oxidised prior to gold leaching. In this study, the effect of [Cl−] concentration (40.6–149.8 g/L), [Cu2+] concentration (0.8–31.6 g/L), pH (1.5–2.5) and temperature (25–90 –C) on the pyrit
Autor:
Pekka Taskinen, Udit S. Mohanty, Taina Kalliomäki, Chao Peng, Lotta Rintala, Jari Aromaa, Petteri Halli, Sipi Seisko, Mari Lundström
Publikováno v:
Mohanty, U S, Kalliomäki, T, Seisko, S, Peng, C, Rintala, L, Halli, P, Aromaa, J, Taskinen, P & Lundström, M 2021, ' Dissolution of copper and nickel from nickel-rich anode slimes under oxidized pressure leaching ', Mineral Processing and Extractive Metallurgy: Transactions of the Institute of Mining and Metallurgy, vol. 130, no. 4, pp. 378-387 . https://doi.org/10.1080/25726641.2019.1670008
Anode slimes are valuable by-products in the electrolytic copper refinery process. This study aimed to investigate maximum extraction efficiency of Cu and Ni from slimes originating from the electrorefining of anodes containing high [Ni]. In addition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::740dac07870435c826485ba981d1b232
https://aaltodoc.aalto.fi/handle/123456789/43134
https://aaltodoc.aalto.fi/handle/123456789/43134
Publikováno v:
Pajunen, N, Rintala, L, Aromaa, J & Kari, H 2016, ' Recycling – the importance of understanding the complexity of the issue ', International Journal of Sustainable Engineering, vol. 9, no. 2, pp. 93-106 . https://doi.org/10.1080/19397038.2015.1069416
Natural resources and raw materials such as metals and minerals are often taken for granted in today’s society. Without them, the offerings of an enormous variety of modern conveniences, including computers and mobile phones, would not be possible.