Functionalized nanocelluloses for mineral froth flotation

This doctoral project advances the sustainable use of natural resources, particularly nanocellulose as an environmentally friendly alternative chemical in mineral processing. The research focuses on the development of innovative mineral separation technologies and the application of biodegradable reagents. There is substantial ecological and economic justification for developing novel green chemicals from renewable resources to address the environmental and health challenges posed by conventional mining chemicals. In response to these concerns, cellulose, especially in its nanocellulose form, has emerged as a promising and sustainable alternative. As the most abundant natural polymer, cellulose offers a viable pathway for creating chemicals capable of replacing conventional synthetic additives. In this research cellulose nanomaterials were initially functionalized through environmentally benign reactions to introduce specific functional groups that enhance affinity for targeted minerals, thereby improving process efficiency and selectivity. The research integrated two major industrial fields: the pulp industry and the mining sector. The obtained results demonstrate the effectiveness of functionalized cellulose-based nanoparticles as efficient process additives, paving the way for more sustainable mineral processing.