This disclosure relates to a process for selective extraction and separating vanadium and iron using a method of chlorinating vanadium-containing iron oxide ores. More particularly, the disclosure relates to a process for producing vanadium oxytrichloride (VOCl.sub.3) and iron trichloride (FeCl.sub.3) in a moving bed chlorinator by reacting chlorine and carbon monoxide with vanadium iron oxide materials. In addition, this disclosure describes removing other chlorides with the exemption of vanadium and iron chlorides from the exhaust stream from the reactor by creating a conversion temperature zone at the top of the reactor. Furthermore, the invention discloses removing impurities from an exhaust gas stream to purify carbon dioxide and it also includes a closed-loop capture in the process in order to convert carbon dioxide to carbon monoxide.

A method of making an FeCr electrolyte includes a) oxidizing a carbon-containing FeCr alloy with Fe.sub.2O.sub.3 or FeO; and b) treating the oxidized carbon-containing FeCr alloy with FeCl.sub.3 or HCl or any combination thereof to produce a FeCl.sub.2CrCl.sub.3 electrolyte. The method may also include treating, under reducing conditions, a starting material, such as chromite ore, with a carbon source to produce the carbon-containing FeCr alloy. Additionally or alternatively, the method may include removing a portion of the FeCl.sub.2 from the FeCl.sub.2CrCl.sub.3 electrolyte to obtain a selected iron to chromium molar ratio for the FeCr electrolyte.

A method of making an FeCr electrolyte includes a) oxidizing a carbon-containing FeCr alloy with Fe.sub.2O.sub.3 or FeO; and b) treating the oxidized carbon-containing FeCr alloy with FeCl.sub.3 or HCl or any combination thereof to produce a FeCl.sub.2CrCl.sub.3 electrolyte. The method may also include treating, under reducing conditions, a starting material, such as chromite ore, with a carbon source to produce the carbon-containing FeCr alloy. Additionally or alternatively, the method may include removing a portion of the FeCl.sub.2 from the FeCl.sub.2CrCl.sub.3 electrolyte to obtain a selected iron to chromium molar ratio for the FeCr electrolyte.

The present invention relates to a method of removing a uranium source from a water, a kit for removing a uranium source from a water, and a use of a powder comprising (i) an alkaline earth carbonate, (ii) an alkaline earth compound chosen from a chloride and/or a nitrate compound, (iii) at least one alkali metal hydrogen carbonate, and optionally (iv) an alkali metal carbonate in a method of removing a uranium source from a water.

The present invention relates to a method of removing a uranium source from a water, a kit for removing a uranium source from a water, and a use of a powder comprising (i) an alkaline earth carbonate, (ii) an alkaline earth compound chosen from a chloride and/or a nitrate compound, (iii) at least one alkali metal hydrogen carbonate, and optionally (iv) an alkali metal carbonate in a method of removing a uranium source from a water.