SEPLITE® LSC495
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Bispicolylamine type, used for Separation of copper,nickel,and cobalt etc
SEPLITE® LSC495 Chelating Resin
Descriptions:
SEPLITE® LSC495 is a chelating resin with bis-picolylamine function group. Due to this specific functionality the resin possesses high affinity for such cations as copper, uranyl, nickel, zinc, cobalt, etc. The resin has remarkable selectivity for copper and nickel against ferric iron, also at pH below 2. Such properties make this resin suitable for extraction of copper and nickel from pregnant leach
solutions produced by processing of mineral raw materials.
Complexes between the resin and copper are very strong and it allows to recover copper from concentrated sulfuric acid or from solutions with copper complexed with DETA or similar common ligands. Desorption of copper from the resin may be made by ammonium hydroxide solution as copper ammine complex.
Difference in complexation strength between the resin and nickel on one side and cobalt on other side makes it possible to separate these two metals in sulfate media by varying concentration of acid at sorption or desorption.
The resin finds wide application in plating, etching and galvanic processes for recuperation of working solutions.
Physical and Chemical Characteristics:
| Matrix Structure | Crosslinked Copolymer |
| Functional group | Bis-Picolylamine |
| Physical Appearance | Light Yellow to dark brown beads |
| Mean particle size (mm) | 0.6-0.9 |
| Bulk Density (g/l) | 650-750 |
| Density (g/l) | 1100-1200 |
| Uniformity coefficient | ≤1.4 |
| Total capacity (eq/L) | ≥ 1.4 |
| Copper loading capacity* (g/l) | ≥35 |
| Moisture Content (%) | 40-55 |
Practical notes:
Selectivity order for different metals at sorption from sulfate solution at pH 2:
Cu >> Ni >> Fe(III) > Cd > Zn > Co >> Fe(II) >>> (Ca, Mg, Al)
After collective sorption of Ni and Co by LSC495 resin these metals may be separated in the following order:
1)Elute Co by 0.5N H2SO4
2)Then elute Ni by ≥1N H2SO4
Precautions:
Resins should be stored in sealed containers or bags where temperature was above 0℃ in dry conditions without exposure to direct sunlight.
Do not mix ion exchange resin with strong oxidizing agents; otherwise, it will cause violent reactions.
In case of eyes contact with resins, rinse eyes immediately with plenty of water, and consult a specialist.
Material and samples must be disposed according to local regulations.
Dry polymers will expand when become wet and may cause an exothermic reaction.
Spilled materials may be slippery.
SEPLITE® and Monojet™ are registered trademarks of Sunresin New Materials Co. Ltd.
Disclaimer: Information presented by this document has general character and may differ from that based on actual conditions.
For more information about SEPLITE® resins, please contact SUNRESIN® directly.
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