Green Mining | Energy and Chemicals Saving Flotation Concentration (EnSaCo)
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Energy and Chemicals Saving Flotation Concentration (EnSaCo)

Name: Energy and Chemicals Saving Flotation Concentration

Acronym: EnSaCo

Duration: 1.1.2013 – 31.12.2014 (1.5.2013 – 30.4.2015)

Total costs (€)/Tekes support: 500 000 €/ 300 000 €

Leading research organization partner: University of Oulu

Contact persons: Kauko Leiviskä, Jari Ruuska, University of Oulu, Kauko.Leiviska(at), Jari.Ruuska(at)


Research organization partners: University of Oulu; Mineral processing, Geology, Control engineering and Mechatronics and machine diagnostics

Company partners: Outotec, Metso, Schneider Electric, Dragon Mining, Specim and IMA Engineering.

International partners: Luleå University of Technology, Sweden

Number of reviewed publications, incl. submitted manuscripts: 2

Number of other publications and reports: 1

Number of thesis: Bachelor 1

Need and motivation of the project:
In mineral processing crushing and especially grinding are using a lot of energy, therefore further development needs to be done on the possibilities to do selective comminution. Energy and also chemicals could be saved significantly as that kind of concept is further developed.

Main set targets:
Most important development objectives are to decrease energy and chemical usage, to find optimal ways to control crushing and grinding (taking into account the mineralogy of feed ore) and the removal of the fines and the gangue minerals as early as possible.


Key results

Many different kind of testing, measuring and analyzing devices were used and their applicability was widely evaluated.

Final report: (In Finnish, abstract available in English)


Commercialization measures and/or potential:

The methods tested and utilized in this project were mainly already commercialized by the companies and in this research they were applied into own studies, so therefore there is not big commercial potential for these results as such (further research is needed).



Reviewed publications

Seppälä, P., Sorsa, A., Paavola, M., Remes, A., Ruuska, J., & Leiviskä, K. (2014) Pilot Plant Simulation as a Tool for More Efficient Mineral Processing. Proceedings of 19th IFAC World Congress, Series 19, Part1 (IFAC-PapersOnline), pp. 11506-11511, ISBN 978-3-902823-62-5.


Pirjo Seppälä, Aki Sorsa, Marko Paavola, Jari Ruuska, Antti Remes, Haresh Kumar, Pertti Lamberg, Kauko Leiviskä (2016): Development and calibration of a dynamic flotation circuit model, Minerals Engineering (Submitted).



Jouni Laurila, Niina Paasovaara, Heli Rautjärvi, Pirjo Seppälä, Jari Ruuska, Hannu Kuopanportti, Kauko Leiviskä: EnSaCo – TEKES Green Mining project 2013 – 2015: Final report, University of Oulu, Oulu, October 2015, 124+154 p. (in Finnish, Abstract in English).


Bachelor thesis

Markku Seitsaari: Sivukiven ja harmemineraalien on-line -tunnistusmenetelmät ja niiden soveltaminen Oriveden kaivoksen kiviin (On-line-identification methods for gangue minerals and their application to the rocks of Orivesi mine) (In Finnish), B.Sc.-thesis (geology), University of Oulu, Oulu, March 2015, 34 p.