Energy and Environment

From waste to value: New industrial process for mineral dressing by use of CO2 (2004-2007)

This program investigates the possibility of industrial use of CO2 for reaction with silicates to form carbonates and improved silicate products.

Norway’s resources of industrial minerals are huge. Ultramafic and mafic rocks host a variety of different industrial minerals of high importance for Norwegian industry. For example, the production of olivine and ilmenite amounts to 66 and 14 % of the world production respectively. This program investigates the possibility of industrial use of CO2 for reaction with silicates to form carbonates and improved silicate products. If successful, improved quality and recovery percentage of present products, new value added products and a method for CO2 sequestration are potential results. Work in the program will concentrate on carbonation of minerals in ultramafic and mafic rocks. A main challenge is to increase the reaction rate. An experimental program will address thermodynamic and kinetic issues of these reactions. Reactor and process design will be studied, and in particular, a new “leaching-while-crushing” reactor concept will be tested.

Project manager
Ingrid Anne Munz

Collaborating partners
Norwegian University of Science and Technology, Prof. Knut Sandvik
Geological Survey of Norway, Are Korneliussen

Project period
2004-2007

Funding
Strategic institute program, funded by the Research Council of Norway