Reduction of the concentration of undesired compounds
OwnerSamantha Brown, Stuart Corr +1inventors
InventorsSamantha Brown, Stuart Corr, Robert Low
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Abstract
A process for treating a composition comprising one or more undesired compounds and one or more desired compounds so as to reduce the concentration of the one or more undesired compounds is described. The process comprises the steps of (1) contacting the composition with an extraction solvent comprising a (hydro)fluorocarbon, and (2) separating the solvent from the one or more desired compounds; wherein one or more of the desired compounds is an inorganic material provided that water is not the only desired material. The process is particularly suited to reducing the content of sulfur and/or nitrogen containing compounds in inorganic fluorides.
Claims19
A process for treating a composition comprising one or more undesired compounds and one or more desired compounds so as to reduce the concentration of at least one of the undesired compounds, the process comprises the steps of:
- (1) contacting the composition with an extraction solvent comprising a (hydro)fluorocarbon, and
- (2) separating the solvent from the one or more desired compounds;
- wherein one or more of the desired compounds is an alkali metal fluoride or an alkaline earth metal fluoride.
process for treating a composition comprising one or more undesired compounds and one or more desired compounds so as to reduce the concentration of at least one of the undesired compounds, the process comprises the steps of:
- (1) contacting the composition with an extraction solvent comprising:
- a (hydro)fluorocarbon;
- and
- a co-solvent;
- (2) separating the solvent from the one or more desired compounds;
- wherein one or more of the desired compounds is an alkali metal fluoride or an alkaline earth metal fluoride;
- and
- wherein at least one of the undesired is a sulfur and/or nitrogen containing compound.
A process for treating a composition comprising one or more undesired compounds and one or more desired compounds so as to reduce the concentration of at least one of the undesired compounds, the process comprises the steps of:
- (1) contacting the composition with an extraction solvent comprising a extraction solvent comprises at least one (hydro)fluorocarbon selected from the group consisting of:
- (hydro)fluoromethanes, (hydro)fluoroethanes, (hydro)fluoropropanes, and combinations thereof;
- (2) separating the solvent from the one or more desired compounds;
- wherein one or more of the desired compounds is an alkali metal fluoride or an alkaline earth metal fluoride;
- and
- wherein at least one of the undesired is a sulfur and/or nitrogen containing compound.
Dependencies are inferred from the claim text.