Patents

6,479,025 Process for the production of sodium carbonate
6,464,736 Recrystallization process
6,451,089 Process for direct electrowinning of copper
6,451,088 Method for improving metals recovery using high temperature leaching
6,422,494 Methods of controlling the density and thermal properties of bulk materials
6,284,005 Sodium carbonate recrystallization
6,231,627 Method to reduce oxidative deterioration of bulk materials
6,199,779 Method to recover metal from a metal-containing dross material
6,173,840 Beneficiation of saline minerals
6,149,883 Pressure oxidation process for the production of molybdenum trioxide from molybdenite
6,092,665 Beneficiation of saline minerals
6,086,647 Molasses/oil coal treatment fluid and method
6,013,382 Apparatus and method for inhibiting the leaching of lead in water
5,919,277 Method to reduce oxidative deterioration of bulk materials
5,911,959 Method for purification and production of saline minerals from trona
5,904,783 Method for reducing lead leaching in fixtures
5,882,620 Pyrometallurgical process for forming tungsten carbide
5,851,499 Method for pressure oxidizing gold-bearing refractory sulfide ores having organic carbon
5,837,210 Method for processing gold-bearing sulfide ores involving preparation of a sulfide concentrate
5,762,891 Process for stabilization of arsenic

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