Patents Assigned to Handelskontor Ludbert Graf zu Munster GmbH & Co.
  • Process for binding waste liquor or sludge
    Patent number: 4338134
    Abstract: An improved process for binding waste liquor or sludge comprising adding a hydraulic mortar to waste liquor or sludge to form a mixture and allowing the mixture to set, the improvement consisting of subjecting the mixture of hydraulic mortar and waste liquor or sludge to a milling operation before the mixture is allowed to set.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: July 6, 1982
    Assignee: Handelskontor Ludbert Graf zu Munster GmbH & Co.
    Inventor: Ludbert Graf zu Munster