Separation of heteropoly compounds from polyethers, polyesters and polyether esters

摘要

PCT No. PCT/EP95/03955 Sec. 371 Date Mar. 27, 1997 Sec. 102(e) Date Mar. 27, 1997 PCT Filed Oct. 6, 1995 PCT Pub. No. WO96/11221 PCT Pub. Date Apr. 18, 1996A method of separating heteropoly compounds from mixtures of polyethers, polyesters and/or polyether esters, a protic component and heteropoly compounds, wherein the protic component is removed from the mixture and subsequently separating off the heteropoly compound as a separate phase. The polymer phase which remains is preferably brought into further contact with a solid adsorbent that is capable of adsorbing heteropoly compounds.