Technical Papers & Patents

Patents

7,476,308 Process for multiple stage direct electrowinning of copper
7,473,413 Method for recovering metal values from metal-containing materials using high temperature pressure leaching
7,462,272 Process for multiple stage direct electrowinning of copper
7,341,700 Method for recovery of metals from metal-containing materials using medium temperature pressure leaching
7,208,023 Dry dust control materials
7,128,767 Method to upgrade low rank coal stocks
7,125,436 Method for improving metals recovery using high temperature pressure leaching
7,041,152 Method for processing elemental sulfur-bearing materials using high temperature pressure leaching
6,972,107 System for direct electrowinning of copper
6,893,482 Method for improving metals recovery using high temperature pressure leaching
6,890,371 Method for processing elemental sulfur-bearing materials using high temperature pressure leaching
6,863,788 Interlocking wettable ceramic tiles
6,786,941 Methods of controlling the density and thermal properties of bulk materials
6,680,034 Method for recovering metal values from metal-containing materials using high temperature pressure leaching
6,676,909 Method for recovery of metals from metal-containing materials using medium temperature pressure leaching
6,664,302 Method of forming a feed for coal gasification
6,663,689 Process for direct electrowinning of copper
6,626,979 Method for improving metals recovery using high temperature pressure leaching
6,500,313 Method for production of hydrocarbons
6,497,745 Method for processing elemental sulfur-bearing materials using high temperature pressure leaching

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