Separation of Actinium, Thorium and Protactinium from Liquid Media

Actinium, thorium, and protactinium are extremely rare metals that occur naturally in uranium ores.

  • 89

    AC

    Actinium

  • 90

    Th

    Thorium

  • 91

    Pa

    Protactinium

Protactinium

 

In HCl, protactinium is absorbed by AMBERSEP™ 21K XLT Strong Base Anion Exchange Resin and has a low affinity for a strong acid cation resin like AMBERSEP™ G26 Resin.

 
 
 
 
 
 
 
 
 

Thorium

 

Thorium is strongly absorbed from HCl by a strong acid cation exchanger like AMBERSEP™ G26 H Resin and has a low affinity for a strong base anion exchange resin.

 
 
 
 
 
 
 
 
 

Actinium

 

Actinium is not ionically active and, therefore, it is not amenable to ion exchange separations.