HP686

1. Product Introduction

HP686 is a weakly alkaline chelating resin that can be used for highly selective adsorption of metals such as copper and nickel. HP686

The polymer skeleton has uniform cross-linking inside and outside, excellent adsorption kinetics, high adsorption capacity, and good mechanical strength. In an acidic solution with a pH of around 2, heavy metals can still be efficiently removed, and their selectivity for metal ion adsorption is in the following order:

2+ >> Ni2+ > UO2

2+ > Fe

3+ > Zn

2+ > Co

2+ > Cd

2+ > Fe

2+ > Mn

2+.

HP686 is suitable for:

Can be used for the recovery of nickel and copper in the production process of lithium positive electrode materials, lithium battery recycling, etc., and for the purification of the feed solution
Can adsorb copper ions under acidic conditions (pH<2)
Remove nickel ions from cobalt electrolyte and purify the electrolyte
Selective adsorption of heavy metal ions such as nickel and copper in strong chelating agent solutions such as EDTA
Chromium (III) bath purification to remove copper and nickel ions

2. Physical and chemical performance indicators

Name	Indicator
Appearance	Yellow to yellow brown opaque sphere
Factory type	Chlorine type or sulfate type
Moisture content %	45 ~ 65
Wet visual density g/mL	0.70 ~ 0.80
Wet true density g/mL	1.10 ~ 1.20
Particle size range mm	0.4 ~ 1.2
Uniformity coefficient	≤1.60
Penetrating and grinding ball rate %	≥90
Whole ball rate	≥98

3. Operating parameters

Name	Numerical value
Resin layer height mm	≥600
Design backwash space%	≥60
Backwash expansion rate%	50 ~ 100
Backwash line speed%	2 ~ 15
Operating temperature ℃	5 ~ 100
Operating flow rate BV/h	5 ~ 100
Applicable pH range	0 ~ 14
Maximum allowable pressure loss kPa	250

*BV=Bed Volume, refers to the volume of adsorbent loading

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