Removal of detrimental metal ions from hydrofluoric acid solutio
Removal of organic contaminants from aqueous hydrochloric acid
Removal of P.sub.2 O.sub.5 from aluminum fluoride enriched cryst
Removal of potassium chloride from solvents
Removal of sulfur from stack gases
Removal of thiothionylfluoride from sulfur tetrafluoride
Removal of uranium from aqueous HF solutions
Removal of water and/or hydrocarbons from hydrogen fluoride
Retarding agents for preparing purified brine