Back to results
US 2016/0355406 A1Published application
Methods To Recover Cesium Formate From A Mixed Alkali Metal Formate Blend
AssigneeCabot Corporation
InventorBart F. Bakke
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeCabot Corporation
InventorBart F. Bakke
Estimating the term…
Methods to recover or separate cesium formate or rubidium formate or both from a mixed alkali metal formate blend are described. One method involves adding cesium sulfate or rubidium sulfate to the mixed alkali metal formate blend in order to preferentially precipitate potassium sulfate from the mixed alkali metal formate blend. Another method involves adding cesium carbonate or cesium bicarbonate or both to preferentially precipitate potassium carbonate/bicarbonate and/or other non-cesium or non-rubidium metals from the mixed alkali metal blend. Further optional steps are also described. Still one other method involves converting cesium sulfate to cesium hydroxide.
1-60. (canceled)
A method to convert at least a portion of cesium sulfate in solution to cesium hydroxide in said solution, said method comprising adding potassium hydroxide to said solution to form potassium sulfate precipitate and cesium hydroxide in said solution;
A method to convert at least a portion of cesium sulfate or rubidium sulfate or both in solution to cesium hydroxide or rubidium hydroxide or both in said solution, said method comprising adding potassium hydroxide to said solution to form potassium sulfate precipitate and cesium hydroxide or rubidium hydroxide or both in said solution;
Dependencies are inferred from the claim text.