Ca and Mg extraction from industrial minerals fo the sequestration of carbon dioxide

In the framework of the project "Project Plan CATO: CO2 capture, transport and storage" experimental laboratory research on carbon dioxide sequestration by mineral carbonation has been carried out by Geochem Research. Initially the work was focused on direct carbonation and magnesium extraction by nitric acid. In agreement with TNO Science and Industry it was decided to leave out the direct carbonation and to perform research on the use of other mild extracting agents: acetic acid, sodium pyrosulphate and sodium sulfate. The work done on nitric acid was divided in magnesium extraction experiments and nitric acid recycling experiments.