Fundamentals (New), page-147

Hey mate,

Boron and potassium should be no problem, they will both happily jump on an anion resin (the strong acid resin). Basically you can alter the flow rate, pH and temperature of the solution to optimise this. The reason Mg and SO4 are single out is because typically there is a lot of it in the brine and this are the likely ions that you will see slip though the ion exchange beds.

Ion exchange is really just for getting rid of the last traces and if you put a solution with too much ions through it then you can get what we call "break through". Where ions are passing through the resin even though it is not yet at exhaustion.

Resins have a total ion capacity which once achieved the resin basically will absorb nothing. Then they have a maximum rate of absorption too which works on difussion principals. Basically if rate of ions entering the system is higher the th rate of absorption you get ion slippage. Easy fix is to slow the flow rate of the solution and increase the temperature. Being weary the resin will have a maximum operating temperature where it will start to degrade at, typically 70-90C.

Hope this helps.