Optimized roasting of complex copper sulphide concentrates for flexible raw material utilization


Luleå tekniska universitet


Caisa Samuelsson



Purpose and goal

The overall objective of the project is to optimize the roasting of sulphide concentrates for copper extraction to achieve efficient removal of elements as arsenic (As) and antimony (Sb) for a flexible use of different concentrates. Thus the goal of this project is to establish methods that will aid in improving the capacity of the roasting process in respect to removal of impurity elements such as As and Sb.

Expected results and effects

Successful outcome from the project will in the short term enable adjusted raw material preparation, e.g mixing of concentrates and in the longer term enabling treatment of raw materials that today is not utilized and implementation of new measurement technology. The project is expected to result in; a test method, a validated process model and evaluated measurement techniques related to roasting of complex sulphide concentrates.

Planned approach and implementation

The project is divided into work packages with specific time plans and deliverables, the work packages are closely connected. The work will be based on theoretic calculations, experimental studies in lab scale, pilot and/or full scale trials. Validation of test method and process model will be done through lab scale and full-scale tests. Senior researchers, PhD student and experts at industrial partners will work closely together.

More information

Presentation slides from Swedish Mining Innovation Program day 2020

Presentation from SIP STRIM program day 2019