Patents Assigned to Minplus B.V.
  • Method of improving material comprising a pozzolanic component
    Patent number: 7438756
    Abstract: The invention relates to a method of improving a material comprising a pozzolanic component. According to the invention the material is treated with an aqueous liquid resulting in treated, calcium-depleted material and a calcium-enriched aqueous solution, which are subsequently separated. This provides a material having an increased pozzolanity and/or increased specific surface area.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: October 21, 2008
    Assignee: Minplus B.V.
    Inventors: Joseph Jan Peter Biermann, Nicolaas Voogt