Patents Assigned to Southern Ionica Incorporated
  • Method and apparatus for recycling cement kiln dust
    Patent number: 6416574
    Abstract: Methods for recycling cement kiln dust are described and involve heating a mixture containing at least one additive, water, and cement kiln dust for a sufficient time and at sufficient temperatures to form cement clinker. The additive contains an organic polyacid, a hydroxy carboxylic acid, a polycarboxylic acid, a saccharide, a carbohydrate, a salt thereof, or combinations thereof. A cement slurry containing water, cement kiln dust, and the above-described additive is also described as well as apparatus for recycling the cement kiln dust.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: July 9, 2002
    Assignee: Southern Ionica Incorporated
    Inventors: Joe C. Steelhammer, Clayton W. Hackett, Milton O. Sundbeck, Jr., John E. Coleman