Abstract: An apparatus for extracting lithium from a lithium-bearing material. A mixer is configured to receive and mix lithium-bearing material with gypsum, a sulfur-containing material, and a calcium-containing material and form a feed mixture having a moisture content of at least 20 wt %. A dryer is configured to dry the feed mixture and form a dried mixture having a moisture content of less than 20 wt %. A roaster is configured to receive and roast the dried mixture and form a roasted mixture including a water-soluble lithium compound. A leach tank is configured to form a lithium-containing leachate from the water-soluble lithium compound using an aqueous solution.

Abstract: A method of extracting lithium from a lithium-bearing material including: (i) mixing the lithium-bearing material, gypsum, a sulfur-containing material, and a calcium-containing material and forming a feed mixture having a moisture content of at least 20 wt %; (ii) drying the feed mixture to form a dried mixture having a moisture content of less than 20 wt %; (iii) roasting the dried mixture and forming a roasted mixture including a water-soluble lithium compound; and (iv) leaching lithium from the water-soluble lithium compound and forming a lithium-containing leachate by mixing the aqueous solution and the water-soluble lithium compound.

Abstract: A method of extracting lithium from a lithium-bearing material including: (i) mixing the lithium-bearing material, gypsum, a sulfur-containing material, and a calcium-containing material and forming a feed mixture having a moisture content of at least 20 wt %; (ii) drying the feed mixture to form a dried mixture having a moisture content of less than 20 wt %; (iii) roasting the dried mixture and forming a roasted mixture including a water-soluble lithium compound; and (iv) leaching lithium from the water-soluble lithium compound and forming a lithium-containing leachate by mixing the aqueous solution and the water-soluble lithium compound.

Abstract: A method of extracting lithium from a lithium-bearing material including: (i) mixing the lithium-bearing material, gypsum, a sulfur-containing material, and a calcium-containing material and forming a feed mixture having a moisture content of at least 20 wt %; (ii) drying the feed mixture to form a dried mixture having a moisture content of less than 20 wt %; (iii)roasting the dried mixture and forming a roasted mixture including a water-soluble lithium compound; and (iv) leaching lithium from the water-soluble lithium compound and forming a lithium-containing leachate by mixing the aqueous solution and the water-soluble lithium compound.

Abstract: Wide span louvers including elongated oval bodies with a thickness to width ratio between 0.14 to 0.25, and a pivot/attachment point offset below the horizontal axis, and other improvements to improve resistance to weight and/or thermal sag in long span shutter assemblies and the like.