Specialty Ion Exchange Resin for Precious Metallic Gold(Au) Adsorption/Recovery


KP-300G is an ion exchange resin synthesized with special technology, specializing in removing strong-acid complexes of precious metals. For its highly firm and solid structure, this resin performs with its high anti-osmotic efficiency and excellent mechanical &shock resistance as well as functions anti-pollution from organics. 

Owing to its special weak-base functional groups, KP-300G performs high selectivity to free radicals of strong acids, regardless of other weak-acids radicals surround by within slags or mineral fluids in which the PH ranges from 3 to 7. Considering the increasing order of affinity that its special functional groups avail to, KP-300G is designed in priority of adsorbing auric strong-acid anions as Au(CN)2,AuCl2 with rather high exchange capacity, which is being widely applied within gold mining metallurgy as well as alloy-plating wastewater treatment, followed by the ultimate recycle and recovery of fine gold after reduced agents are added.

Physical form: Spherical beads
Moisture holding capacity(%): 50 to 60%
Total bulk exchange capacity: ≥1.3mmol/ml
Moisture true density: 1.07~1.10g/mL
Moisture bulk density: 0.68~0.73g/mL
Effective particle size: 0.40~0.70mm
Particle size: 0.415~1.25mm
Uniformity coefficient: ≤1.6
Integrated beads ratio after grinding test: ≥90℅
Maximum operating temperature: 60°C
Minimum bed depth: 700mm
Service flow rate: 5~25 BV*/h
Maximum service velocity: 40 m/h
Regenerant: NaOH
Level(Counted by 100%): 60~150g/L
Concentration: 2~4℅
Flow rate: 2~8 BV*/h
Minimum contact time: 40min
Slow rinse: 5~8 BV at regeneration flow rate
Fast rinse:10~20 BV at service flow rate
*1 BV(Bed Volume)= 1 solution per resin