Patent ID: 9434090
Filing Date: 2016-09-06
CPC Classification: B24D,B28B,B28C,C04B,Y02P,Y02W

Claim Text:
1. A process for producing granular material useful as aggregate for the production of lightweight construction materials, said method comprising: providing a pulverized material, wherein the pulverized material is calcium oxide, magnesium oxide, or combination thereof; mixing the pulverized material with a dewatered clay waste material having a density of approximately 35% to 50% solids in a mixing device to form a paste-like material; adding a finely divided solid organic to the paste-like material, wherein the finely divided solid organic material is Canadian peat, Canadian peat fines, or dust residue from Canadian peat processing; allowing the paste-like material to cure while periodically mixing to expose new surface area thereof to the air to facilitate evaporation until the water content of the cured material is 6% or less or drying the paste-like material in a low temperature dryer until a water content of the cured material is 6% or less; heating the cured material to a temperature of approximately 1800-2200° F. for 30-60 minutes; and cooling the heated cured material.