Specialty Anion Exchange Resin for Metallic Nickel(Ⅱ) Complexes Separation/Recycle


KP-702 is an ion exchange resin synthesized with special technology, specializing in adsorbing multiple negative metal complexes or compounds. Owing to its special condensated matrix of gel-type copolymer with weak-base functional groups, KP-702 outperforms extra high exchange capacity and excellent regeneration efficiency in adsorbing metallic complex ions, particularly exchanging with anions of nickel-complexes. Followed by redox reactions, metallic nickel cations are readily to be recycled off the complexes. This resin-adsorption methodology of nickel separtion or recycle has been widely applied within wastewater treatment, primarily in electroless and alloy plating wastewater systems.

Physical form: Spherical beads
Moisture holding capacity(%): 64 to 72%
Total bulk exchange capacity: ≥2.0mmol/ml
Moisture true density: 1.08~1.18g/mL
Moisture bulk density: 0.65~0.85g/mL
Particle size: 0.30~2.0mm
Uniformity coefficient: ≤1.8
Integrated beads ratio after grinding test: ≥95℅
Max Swelling Rate of Resin after Ionic State Transition: 25%
Maximum operating temperature: 60°C
Minimum bed depth: 800mm
Service flow rate: 5~25 BV*/h
Maximum service velocity: 40 m/h
Regenerant: NaOH Na2CO3   NH3H2O
Level(Counted by 100%): 80-170g/L 100-230g/L 60~150g/L
Concentration: 2~4℅ 4~8℅2~4℅
Flow rate: 2~8 BV/h 2~8 BV/h2~8 BV/h
Minimum contact time: 30min
Slow rinse: 10 BV at regeneration flow rate
Fast rinse: 15~30 BV at service flow rate
*1 BV(Bed Volume)= 1 solution per resin