On-line analysis of flotation process waters at Siilinjärvi (Finland) apatite concentrating plant

Pekka Sten (Corresponding Author), Pekka Parvinen, Mauno Miettinen, Saija Luukkanen (Corresponding Author), V. Kaskiniemi, J. Aaltonen

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Abstract

Along with chemicals deliberately added in the process, the process water quality is affected by species dissolved from the minerals and the air. In the case of the separation of calcite and apatite by flotation, Ca2+, CO32− and HCO3 are such species, and the variations of their aqueous concentrations can be expected to influence the process performance. In this study, both the long-term and short-term variations of pH, as well as the above-mentioned concentrations in two process water streams at the Siilinjärvi apatite concentrating plant, were monitored on-line. Obvious seasonal and diurnal variations in these concentrations were observed in the recirculated water reclaimed from the tailings ponds. Such variations are probably due to changes in the biological activity in the ponds. Further, the commercial process titrator OMT 20 DX delivered by Murtac GmbH, and sampling using laboratory-scale CERAMEC filters delivered by Outokumpu Mintec, proved to be a reliable concept in the demanding conditions of a concentrating plant.
Original languageEnglish
Pages (from-to)229-236
Number of pages8
JournalMinerals Engineering
Volume16
Issue number3
DOIs
Publication statusPublished - 2003
MoE publication typeA1 Journal article-refereed

Fingerprint

Apatites
Apatite
Ponds
Flotation
apatite
Water
Calcium Carbonate
Calcite
Tailings
Bioactivity
diurnal variation
Water quality
Minerals
calcite
seasonal variation
pond
Sampling
filter
water quality
sampling

Keywords

  • on-line analysis
  • flotation
  • non-metallic ores
  • process waters
  • concentrating
  • mineral processing
  • minerals
  • apatite

Cite this

Sten, P., Parvinen, P., Miettinen, M., Luukkanen, S., Kaskiniemi, V., & Aaltonen, J. (2003). On-line analysis of flotation process waters at Siilinjärvi (Finland) apatite concentrating plant. Minerals Engineering, 16(3), 229-236. https://doi.org/10.1016/S0892-6875(03)00013-X
Sten, Pekka ; Parvinen, Pekka ; Miettinen, Mauno ; Luukkanen, Saija ; Kaskiniemi, V. ; Aaltonen, J. / On-line analysis of flotation process waters at Siilinjärvi (Finland) apatite concentrating plant. In: Minerals Engineering. 2003 ; Vol. 16, No. 3. pp. 229-236.
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Sten, P, Parvinen, P, Miettinen, M, Luukkanen, S, Kaskiniemi, V & Aaltonen, J 2003, 'On-line analysis of flotation process waters at Siilinjärvi (Finland) apatite concentrating plant', Minerals Engineering, vol. 16, no. 3, pp. 229-236. https://doi.org/10.1016/S0892-6875(03)00013-X

On-line analysis of flotation process waters at Siilinjärvi (Finland) apatite concentrating plant. / Sten, Pekka (Corresponding Author); Parvinen, Pekka; Miettinen, Mauno; Luukkanen, Saija (Corresponding Author); Kaskiniemi, V.; Aaltonen, J.

In: Minerals Engineering, Vol. 16, No. 3, 2003, p. 229-236.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - On-line analysis of flotation process waters at Siilinjärvi (Finland) apatite concentrating plant

AU - Sten, Pekka

AU - Parvinen, Pekka

AU - Miettinen, Mauno

AU - Luukkanen, Saija

AU - Kaskiniemi, V.

AU - Aaltonen, J.

PY - 2003

Y1 - 2003

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AB - Along with chemicals deliberately added in the process, the process water quality is affected by species dissolved from the minerals and the air. In the case of the separation of calcite and apatite by flotation, Ca2+, CO32− and HCO3− are such species, and the variations of their aqueous concentrations can be expected to influence the process performance. In this study, both the long-term and short-term variations of pH, as well as the above-mentioned concentrations in two process water streams at the Siilinjärvi apatite concentrating plant, were monitored on-line. Obvious seasonal and diurnal variations in these concentrations were observed in the recirculated water reclaimed from the tailings ponds. Such variations are probably due to changes in the biological activity in the ponds. Further, the commercial process titrator OMT 20 DX delivered by Murtac GmbH, and sampling using laboratory-scale CERAMEC filters delivered by Outokumpu Mintec, proved to be a reliable concept in the demanding conditions of a concentrating plant.

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KW - flotation

KW - non-metallic ores

KW - process waters

KW - concentrating

KW - mineral processing

KW - minerals

KW - apatite

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JF - Minerals Engineering

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