PSI WP-4 Ion Exchange Resin
PRIMARY APPLICATION: Separation of Copper from Nickel
WP-4® will load ferric iron and copper while rejecting nickel in process liquors where the pH < 4. The ferric iron and copper in the elute product can then be separated via precipitation. High purity nickel can be subsequently recovered from the adsorption-out stream using PSI's WP-2®. Electrowinning or precipitation of the nickel elute product can then be completed to produce a final product.
KEY PRODUCT FEATURES
- Recovers copper and ferric iron while rejecting nickel
- Rejection of Na, K, Ca & Mg @ pH <8
- Cycles are load, wash, elute, rinse. No replacement of either H+ or OH- is required.
- Long resin life span with <10% loss in loading capacity after 10,000 cycles
- Zero swell or shrink on contact with liquids
- May be eluted with H2SO4, HNO3, HCL & NH3
- Process temperatures of up to 110 C may be used
- Nominal pH operating range 1 to 8
- Shipped with <10% moisture
- Not suitable for use with HF & NaOH > 1M
