Accession Number : ADD018555

Title :   Process for Treating By-Products of Lithium/Sulfur Hexafluoride

Descriptive Note : Patent, Filed 7 Jul 95, patented 13 May 97

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Lema, Luis E

Report Date : 13 May 1997

Pagination or Media Count : 4

Abstract : A process is provided for treating the solid reaction by-products of lithium and sulfur hexafluoride. Lithium in the by-product solid waste is converted to lithium hydroxide. Lithium sulfide in the by-product is converted to lithium hydroxide. Lithium sulfide in the by-product is reacted with an acid to form a water soluble salt and hydrogen sulfide. The hydrogen sulfide is converted to an alkali metal sulfate. Solid aluminum oxide and lithium fluoride are recovered as a feed in the production of aluminum. Remaining lithium salts in solution are converted to lithium carbonate.

Descriptors :   *FLUORIDES, *PATENTS, *SULFUR COMPOUNDS, *LITHIUM FLUORIDES, ALUMINUM OXIDES, SALTS, SULFATES, SOLID WASTES, WATER SOLUBLE MATERIALS, WASTE TREATMENT, SULFIDES, HYDROXIDES, LITHIUM COMPOUNDS, ALKALI METALS, CARBONATES, HYDROGEN SULFIDE

Subject Categories : Industrial Chemistry and Chemical Processing

Distribution Statement : APPROVED FOR PUBLIC RELEASE