Test and evaluation of mechanical tunneling with TBS

Purpose and goal Mechanical tunneling will improve the competitiveness of the mining sector, as mechanical tunnelling is expected to enable a higher productivity, a more environmentally friendly production process and a safer working…

MinFroth – Characterisation of froth in mineral flotation of sulphide ore

Purpose and goal The objective of this pre-study is to provide and demonstrate an effective approach for characterisation of froth in mineral flotation. The approach focuses on using a portable dynamic foam analyzer,…

Efficient comminution operation (ECO)

Purpose and goal Comminution (crushing and grinding) accounts for about 4% of the world’s energy consumption. Moreover, the environmental impacts from the production of tailings due to overgrinding can be significant. In this…

FloccFines – Flocculation of fine particles in mineral flotation of copper-lead-zinc sulphide ores

Purpose and goal There are several industrial advantages with a cost and time effective way to evaluate new flocculants in mineral flotation. The main objective of this project was therefore to demonstrate an…

Designed collectors for selective flotation

Purpose and goal The aims were to synthesise a new collector with two functional xanthate headgroups to test selectivity for Cu-Ni sulphides in one of Boliden’s ores compared with PAX used today. A…

Innovative quality assured fayalite slag products

Purpose and goal The aim of the project is to develop new circular use of the fayalite slag from base metal smelters and to assure the environmental quality of present and new slag…

Measuring the thickness of mill lining with ultrasound during operation

Purpose and goal Mining mill linings experience continuous wear, requiring periodic inspections, and can lead to high costs in case of unplanned stoppages. In this pilot study, the feasibility of using waterflow ultrasonics…

HIFLOAT – Individual sizing of flotation cells

Purpose and goal The overall objective of the proposed work is to investigate the effects of different flotation cell height to diameter ratios in order to identify optimal aspect ratios for flotation cells…

Use of coal and metal-containing residue material as reductant during extraction of base metals

Purpose and goal The aim with the project, to substitute a substantial amount of primary coal used as reductant by carbon containing residue material, has to a large extent been achieved. New knowledge…