Class 423/499.3 - Lithium chloride

Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Products and processes wherein the product is lithium chloride
No. of patents: 29
Last issue date: 05/15/2007

Number	Title	Issue Date
7217402	Apparatus and method for making metal chloride salt product A method of producing metal chlorides is disclosed in which chlorine gas is introduced into liquid Cd. CdCl2 salt is floating on the liquid Cd and as more liquid CdCl2 is formed it separates from the liquid Cd metal and dissolves in the salt. T...	05/15/2007
7175708	Recovering purified water and potassium chloride from spent basic hydrogen peroxide Methods and apparatus are provided for the removal and purification of the water and salt by-products from spent BHP emitted from a lasing process. The apparatus comprises a liquid processing system that freezes the water and salt by-products into a slurry, and then...	02/13/2007
7157065	Production of lithium compounds directly from lithium containing brines A continuous process for directly preparing high purity lithium carbonate from lithium containing brines by preparing a brine containing about 6.0 wt % lithium and further containing other ions naturally occurring in brines; adding mother liquor containing carbonate...	01/02/2007
7087209	Method for producing a halide brine A method for producing halide brine wherein an alkali and a reducing agent are added to an aqueous fluid having a density greater than 8.30 lb/gal., (0.996 kg/L) water, waste water or sea water for example. The resulting fluid is then contacted with a halogen to for...	08/08/2006
7037481	Production of ultra pure salt This invention relates to methods and installations for producing ultra pure sodium chloride salt crystals primarily for use in saturating depleted brine resulting from the electrolytic decomposition of saturated brine in chlor alkali membrane cells for the producti...	05/02/2006
7026439	Process for continuous production of polyarylene sulfide There is disclosed a process for continuously producing a polyarylene sulfide which comprises reacting a sulfur source with a dihalogenated aromatic compound in an aprotic organic solvent, characterized by maintaining the content of the dihalogenated aromatic compou...	04/11/2006
6921522	Production of lithium compounds directly from lithium containing brines Methods and apparatus for the production of low sodium lithium carbonate and lithium chloride from a brine concentrated to about 6.0 wt % lithium are disclosed. Methods and apparatus for direct recovery of technical grade lithium chloride from the concentrated brine...	07/26/2005
6849199	Snow and ice-melting granules and method for preparing same Snow and ice-melting granules prepared from compacted blends of salts of alkali and/or alkaline earth metals and a method for preparing such granules, are provided. The inventive granules have improved mechanical properties and, as such, are not readily reduced to a...	02/01/2005
6763051	Treatment of chloralkali feeds containing hydrogen peroxide and base A method and apparatus for removing BHP contaminants (alkali hydroxide and H2O2) from a recycled aqueous alkali chloride solution stream before the stream is fed to a chloralkali cell so that the contaminants do not impair the operation of a ch...	07/13/2004
6652820	Methods of making cesium salts and other alkali metal salts A method of making a cesium salt is described and involves reacting a cesium sulfate containing solution with lime to form 1) a solution containing at least cesium hydroxide and 2) a residue comprising calcium sulfate. The method further involves removing...	11/25/2003
6497850	Recovery of lithium compounds from brines Methods and apparatus for the production of low sodium lithium carbonate and lithium chloride from a brine concentrated to about 6.0 wt % lithium are disclosed. Methods and apparatus for direct recovery of technical grade lithium chloride from the concent...	12/24/2002
6468495	Treatment of molten salt reprocessing wastes A method of removing from a metal salt ionic species contained therein involves contacting the metal salt with an ionic liquid to dissolve the metal salt, the ionic species or both. At least in the case where both the metal salt and the ionic species are ...	10/22/2002
6455022	Purification of aqueous alkali metal chloride solutions by removal of ammonium/iodine values therefrom Aqueous alkali metal chloride solutions, typically destined for electrolysis for the production of chlorine and containing a contaminating amount of iodine values in other than the periodate state, are purified by oxidizing the iodine values therein to th...	09/24/2002
6207126	Recovery of lithium compounds from brines Methods and apparatus for the production of low sodium lithium carbonate and lithium chloride from a brine concentrated to about 6.0 wt % lithium are disclosed. Methods and apparatus for direct recovery of technical grade lithium chloride from the concent...	03/27/2001
6063345	Method of separating NaCl from a LiCl solution Disclosed is a method of separating NaCl from a NaCl contaminated aqueous LiCl solution involving concentration of the solution, cooling of concentrated solution and separation of the crystallized NaCl. The method is characterized in that the concentratio...	05/16/2000
5665220	Electrolytic magnesium production process In the electrolytic production of magnesium from an electrolyte comprising magnesium chloride and impurity quantities of magnesium oxide which adversely affects the efficiency of cell operation, the magnesium oxide is chemically and electrolytically remov...	09/09/1997
5376352	Oxygen storage and retrieval system A method and apparatus for storing and retrieving oxygen are provided on a steady flow basis. The temperature of a storage vessel containing lithium perchlorate (LiClO4) in the solid state is raised until a molten bath of the LiClO4 ...	12/27/1994
5230879	Reduction of metal halates and recovery of metal halides This invention relates to a process for reducing metal halates to metal halides, the process comprising reacting a metal halate with a reducing agent in an aqueous alkaline reaction medium having a pH above about 7, wherein the amount of reducing agent is...	07/27/1993
5075092	Process for preparation of silane A process for continuously preparing silane and a coproduct by reacting a metal hydride such as NaAlH4 with a silicon halide such as SiF4, utilizing, in conducting the reaction, equipment which includes, in series, a primary reactor,...	12/24/1991
4963341	Process for degrading hypochlorite and sodium hypochlorite A process for degrading hypochlorite waste and lithium hypochlorite solutions uses a cobalt oxide/molybdenum oxide catalyst formed from about 1-10 w/w % cobalt oxide and 1-15 w/w % molybdenum oxide disposed on a suitable substrate. The major advantage of ...	10/16/1990
4919911	Method of recovering a lithium chloride The present invention provides a method of recovering a lithium chloride, which comprises reacting a dihalogenated aromatic compound and an alkali metal sulfide and/or alkali metal hydrogen sulfide in a polar solvent under the pressure of lithium chloride...	04/24/1990
4915705	Production of silica and fluorine-containing coproducts from fluosilicic acid A process for producing high grade silica and fluorine-containing coproducts from fluosilicic acid is described. To produce silica, the fluosilicic acid is reacted with aqueous ammonia to produce a solid silica product and a solution of ammonium fluoride....	04/10/1990
4472362	Regeneration of crystalline lithium aluminates Crystalline 2-layer lithium aluminate, especially when carried in an ion exchange resin, is regenerated for use as an extractor for Li+ values in aqueous solution, said regeneration being done by using an aqueous wash containing at least about ...	09/18/1984
4274834	Process for purification of lithium chloride Lithium chloride containing small amounts of inorganic and/or organic impurities is purified by heating the lithium chloride above about 200° C., cooling the compound to ambient temperatures and extracting it with isopropanol, separating the liquid and s...	06/23/1981
4243392	Process for solar concentration of lithium chloride brine By evaporation employing solar energy, a brine having a lithium chloride concentration greater than that of a brine whose vapor pressure under ambient conditions is substantially equal to the partial pressure of moisture in the atmosphere above the brine ...	01/06/1981
4216191	Method of preparing inorganic-alkali metal salts The present invention is directed to a method of preparing an inorganic-alkali metal salt of the formula: wherein Z is an alkali metal selected from the group consisting of lithium and sodium, and wherein Y is an inorganic radical selected from the group ...	08/05/1980
4147761	Hypochlorous acid process using sweep reactor A process for preparing hypochlorous acid in a sweep reactor is described in which gaseous chlorine is passed rapidly across the surface of an agitated aqueous solution of alkali metal hydroxide at a reduced temperature. The resulting gaseous product mixt...	04/03/1979
4125590	Method for manufacturing boron trichloride This invention relates to the manufacture of boron trichloride from a molten salt bath comprising a naturally occurring boric acid salt or other boron-containing ore, carbon and chlorine gas. In accordance with the process of this invention, boron trichloride ...	11/14/1978
3931395	Process for generating hydrogen gas Solid compositions, stable at ambient temperatures, which generate hydrogen as when heated to initiate the reaction between the components of the composition. The compositions comprise certain ammonium salts such as NH.sub.4 Cl and complex hydrides such as...	01/06/1976

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Class 423/499.3 - Lithium chloride