Patents Assigned to LafargeSaluminates
  • Method and plant for making alumina cement and alumina cement
    Patent number: 6689207
    Abstract: The concentration d3 is alumina AL2O3, —A—, and the concentration d4 in lime CaO, —C—, in the initial mixture are such that d3/d4 ranges between 1.15 and 1.40. Grinding produces a cement with a size distribution as represented in a Rosin Rammler diagram has a gradient ranging between 0.75 and 0.90.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: February 10, 2004
    Assignee: LafargeSaluminates
    Inventors: Bruno Espinosa, Thomas Bier