Patent ID: 6527975
Filing Date: 2003-03-04
Classification: C02F

Abstract:
A process for making a liquid mineral oxide concentrate useful as a flocculent, coagulant and/or disinfectant for the treatment of water and wastewater, the process comprising extracting from a natural mineral deposit minerals at least containing aluminum, iron, magnesium, and potassium; heat treating the extracted mineral-rich material to produce a controlled volumetric expansion of the material and to remove essentially all organic constituents and to evaporate essentially all water, leaving a mass of expanded mineral-rich material at least containing oxides of aluminum, iron, magnesium and potassium; and dissolving the expanded oxide-rich material in a liquid to produce a liquid concentrate of said mineral oxide material useful for said water and wastewater treatment, in which the mineral-rich material is heat treated at a temperature ranging from 800Â°-1500Â° C. to fuse the minerals and complete dissolution of cations.