Extraction of tellurium as a volatile fluoride

Purpose and goal In this project, we aimed at validating the concept of extracting tellurium by an innovative method called liquid-gas separation: the LIGEX process. This process requires fluorination of tellurium into a…

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…

ScreenFloat – Screening of flotation reagents–minerals interactions: a surface chemistry approach

Purpose and goal There are several industrial relevant advantages with a fast screening method compared to the normal procedure used for testing of new ideas, i.e. batch-wise laboratory flotation tests. The main objective…

Use of nanocellulose for surface modification of magnetite and silicate in mineral pulps

Purpose and goal The project shows that nano-entities can, to a large extent, modify the surface charge of magnetite and quartz. Micro-flotation shows that nano-entities can induce hydrophobicity to mineral surfaces. Mini-flotation, with…

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…

BIOMET: Efficient metal recovery from mine drainage water by biological treatment

Purpose and goal The aim of the project was to increase resource efficiency and reduce the environmental footprint of mining by reduced metal emissions through designing smart bioprocesses. The project has reached that…

Attractive commodity supply

Purpose and goal The aim of the pre-study was to create a roadmap for continuous development and to develop the methods to be used. At the end of the project it should be…

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…