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Performance test of extractant

4.Extractant performance test

4.1 Extractant composition and content

4.2 Active ingredient and content in organic phase

4.3 Viscosity and specific gravity of organic phase

4.4 Degradation of extractant

4.5 Extraction and strip kinetics

4.6 Maximum copper loading                        

4.7 Extraction and strip isotherm point

4.8 Extraction and strip phase separation                

4.9 Copper net transfer          

4.10 Extraction efficiency, strip efficiency, stage efficiency                                         

4.11 Content of copper/iron in leaching solution, raffinate and pregnant electrolyte, etc.

4.12 Extraction Cu/Fe selectivity

4.13 Entrainment in organic and aqueous phase