Patents

5,736,113 Method for beneficiation of trona
5,725,613 Method to reduce oxidative deterioration of bulk materials
5,660,735 Method for removing metals from waste solutions
5,653,945 Method for processing gold-bearing sulfide ores involving preparation of a sulfide concentrate
5,651,465 Beneficiation of saline minerals
5,632,825 Apparatus and method for inhibiting the leaching of lead in water
5,544,859 Apparatus and method for inhibiting the leaching of lead in water
5,536,416 Method for removing metals from a solution
5,470,554 Beneficiation of saline minerals
5,454,876 Process for reducing lead leachate in brass plumbing components
5,399,322 Selective recovery of dissolved metals and preparation of metal salt products
5,358,700 Method of extracting zinc from brines
5,320,759 Selective recovery of heavy metals using xanthates
5,229,085 Utilization of oxygen in leaching and/or recovery procedures employing carbon
5,106,489 Zircon-rutile-ilmenite froth flotation process
5,078,786 Process for recovering metal values from jarosite solids
4,879,022 Ore flotation process and use of mixed hydrocarbyl dithiophosphoric acids and salts thereof
4,816,234 Utilization of oxygen in leaching and/or recovery procedures employing carbon
4,814,149 Process for recovering molybdenum from solution in a form that is substantially free from vanadium
4,778,586 Viscosity reduction processing at elevated pressure

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