Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Eija Saari"'
Publikováno v:
Minerals, Vol 13, Iss 9, p 1230 (2023)
Blending of different ore types in the concentrator feed contributes significantly to maintaining a high recovery of valuable minerals with required grades in the concentrate. It is feasible to develop an ore-blending scheme over the life of a mine a
Externí odkaz:
https://doaj.org/article/e1b7ee1dca7048e791f10a74aa1369ca
Autor:
Annukka Aaltonen, Thi Minh Khanh Le, Eija Saari, Olli Dahl, Benjamin Musuku, Aleksandra Lang, Sakari Hiidenheimo, Richard Dixon
Publikováno v:
Minerals, Vol 13, Iss 3, p 319 (2023)
The pressure for saving water by closing the water loops in mineral processing is increasing continuously. The drivers for higher recirculating rates include water scarcity in dry areas, environmental legislation that is becoming stricter in most cou
Externí odkaz:
https://doaj.org/article/98f031df0bfb436b9012b9c5adda6aaf
Publikováno v:
Minerals, Vol 13, Iss 2, p 277 (2023)
Earlier studies at the Kevitsa Cu-Ni concentrator plant have indicated that seasonal variations of the properties of the process water affect the oxidation of the surface of the minerals, and further, the pentlandite flotation performance. However, i
Externí odkaz:
https://doaj.org/article/59059d197d1a4c4d80334c5956571f66
Publikováno v:
Minerals, Vol 12, Iss 11, p 1406 (2022)
This paper investigated the effect of mineral surface oxidation on the floatability of Kevitsa low-grade Ni-Cu ore. Physicochemical measurements, ethylene diamine tetra acetic acid (EDTA) extraction, and oxygen uptake experiments were carried out wit
Externí odkaz:
https://doaj.org/article/cfe183f1a97c43828691391fefc44939
Publikováno v:
Microchemical Journal. 94:73-78
Interlaboratory comparisons for the analysis of mineral oil have indicated that many laboratories have problems in producing data of acceptable quality, mainly because of variations in the gas chromatographic settings used in the determination. A D-o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c96e9d7e500d4c4f39b782523e68010
https://doi.org/10.1016/j.microc.2009.09.004
https://doi.org/10.1016/j.microc.2009.09.004
Measurement uncertainty in the determination of total petroleum hydrocarbons (TPH) in soil by GC-FID
Publikováno v:
Chemometrics and Intelligent Laboratory Systems. 92:3-12
In this investigation two methods were used for estimating the measurement uncertainty due to sampling and analysis of petroleum hydrocarbon contaminated soil. Analysis of variance (ANOVA) was used for type A evaluation of the measurement uncertainty
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::affd58581015fc55970db7117893b681
https://doi.org/10.1016/j.chemolab.2007.11.006
https://doi.org/10.1016/j.chemolab.2007.11.006
Publikováno v:
Microchemical Journal. 87:113-118
Research papers in different fields of analytics indicate that the effect of matrix-induced chromatographic response enhancement (matrix effect) is a commonly encountered problem in gas chromatography applications. In this paper, an example of the ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1eb28e9fcaa89bf864e8f12b053c8167
https://doi.org/10.1016/j.microc.2007.06.002
https://doi.org/10.1016/j.microc.2007.06.002
Publikováno v:
Microchimica Acta. 158:261-268
Three non-specific methods for the extraction of total petroleum hydrocarbons (TPH) from soil into organic solvent were compared. The techniques used for sample preparation were Soxhlet extraction, closed-vessel microwave-assisted extraction, and CEN
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12d3be92898f936b2882f8c6970fe937
https://doi.org/10.1007/s00604-006-0718-3
https://doi.org/10.1007/s00604-006-0718-3