Process for the recovery and manufacture of valuable byproducts from fractionating sand mine waste products
AssigneeCleanWater Technologies, LLC
InventorDonald Allen Luke
Life of this patent
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Abstract
The present invention provides a process for producing granular material useful as aggregate for the production of lightweight construction materials and involves the mixing of a pulverized Calcium Oxide material with a dewatered clay waste material in a paddle or ribbon type mixer until reaching a state of a uniform consistency paste like material and then allowing such material to cure for several days while periodically mixing to expose new surface area thereof to the air to facilitate evaporation until the water content of the cured material is less than six percent.
Claims14
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.
Dependencies are inferred from the claim text.