Removal of antimony from industrial streams

A process for removing antimony from an acidic industrial stream containing the same in minor concentrations which comprises passing said industrial stream through a bed of strong acid cation exchange resin in the hydrogen form until the ion exchange capacity of the resin is largely exhausted by exchange with antimony and thereafter eluting the antimony from the resin with a strong base.

A process for removing antimony from an industrial stream containing the same in minor concentrations which comprises passing said industrial stream through a bed of strong base anion exchange resin in the hydroxyl form until the ion exchange capacity of the resin is largely exhausted by exchange with antimony.

A process for recovering antimony from an industrial stream containing a minor amount of solubilized antimony which comprises contacting such industrial stream in series with both strong acid and strong base ion exchange resins in their hydrogen and hydroxyl forms, respectively, to remove essentially all of the antimony from the stream and thereafter eluting the antimony from the strong acid and strong base resins, precipitating the antimony with acid, and recovering the antimony trioxide by filtration.