LEWATIT® VP OC 1026

Lewatit® VP OC 1026 is a solvent impregnated resin (SIR) with a macroporous styrene DVB copolymer matrix which contains di-(2-ethylhexyl)phosponic acid (D2EHPA). This liquid extractant is directly incorporated
during the formation of the copolymer. Generally it can be assumed that ions which can be removed with D2EHPA are also adsorbed by this product.

The selectivity order for the extraction of cations from sulfate containing solutions can be assumed as follows:

VO²⁺= UO₂²⁺= Fe³⁺= In³⁺> Al³⁺ >Pb²⁺ = Zn ²⁺> Ca²⁺> Cd²⁺= Mn²⁺> Cr³⁺> Mg²⁺> Co²⁺

Lewatit® VP OC 1026 is especially suitable for:

• The removal of ferric and zinc from chromium(III) containing acid Baths
• The adsorption of zinc and ferric from sulphuric acid streams
• The recovery of rare earth metals and indium from acidic solutions

The advantages of this product compared to conventional solvent extraction are:

• No organic solvent for the dilution of the liquid extractant is required
• No phase separation Problems
• Simple equipment similar to conventional ion exchange processes with a smaller plant Footprint
• Very low leakage of the cations to be removed