The purity of epoxy resins is usually characterized by the hydrolizable chlorine content.  Are you talking about the removal of residual Bis-A?

Do you looking for an industrial scale separation or lab scale?

Do you look for industrial scale separation or lab scale?

@ Kerem Karakuş

Hi Kerem, right now I am looking for lab scale only like 1-2 kg batch.

@ Gyorgy Banhegyi

Hi, I am looking for a procedure to separate diol from epoxide material.

@ Gyorgy Banhegyi

Hi, I am looking for a procedure to separate diol from epoxide material.

I understand that what kind of diol you want to separate? The Bisphenol-A residue whci was used to produce bisphenol-A-diglycidyl ether or other kind of diol?