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Model-based design and optimisation of hydrometallurgical liquid–liquid extraction processes
(Lappeenranta University of Technology, 2018-11-12)
Hydrometallurgical methods are suitable for the treatment of primary, secondary, highand low-grade raw materials enabling the production of metals essential to modern society, in an environmentally and economically sustainable ...
Towards sustainable production of value-added chemicals and materials from lignocellulosic biomass: carboxylic acids and cellulose nanocrystals
(Lappeenranta University of Technology, 2018-11-02)
Industrial production of many chemicals and chemical products depends primarily on fossil resources. Lignocellulosic biomass, which is the most abundant and sustainable biomass on earth, is a potential renewable resource ...
Mass transfer modeling in slow-release dissolution and in reactive extraction using experimental verification
(Lappeenranta-Lahti University of Technology LUT, 2019-12-05)
In this thesis, models related to mass transfer operations were studied in two cases. One study case was the dissolution of potassium chloride (KCl) particles in water, and another study case was the reactive solvent ...
Development of liquid–liquid extraction processes for concentrated hydrometallurgical solutions
(Lappeenranta-Lahti University of Technology LUT, 2023-01-20)
Hydrometallurgical liquid–liquid extraction is a separation and purification method used for the recovery of metals from aqueous solutions. In this thesis, process design methods were studied and evaluated for the development ...
Fast contact copper extraction
(Lappeenranta-Lahti University of Technology LUT, 2022-12-19)
The intensification of copper solvent extraction was examined in this thesis. Extraction with hydroxyoximes is used in industry for copper separation. The reaction between hydroxyoxime and copper is a two-phase interfacial ...