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Recovery of Zn (II), Mn (II), Cd (II) and Ni (II) from the unsorted spent batteries using solvent extraction, electrodeposition and precipitation methods.

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Academic year: 2021

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Figure

Fig. 1. Detailed flowsheet of the hydrometallurgical route to treat the mixture of waste batteries.
Table 2 Selective extraction performances of Zn from PLS using Cyanex 272 after two stages of extraction (30% (v v -1 ) Cyanex 272 and 2% (v v -1 ) TBP in kerosene, O/A = 2/1) at pH = 2.5.
Table 3 Simultaneously extraction performances of Cd and Mn from Zn-depleted PLS using D2EHPA after two stages of extraction (30% (v v -1 ) D2EHPA and 5% (v v -1 ) TBP in kerosene, O/A = 2/1) at pH = 2.2 following the scrubbing stage (O/A
Table 4 Removal of the impurities from Cd-, Mn- depleted PLS using Cyanex 272 after single stage of extraction (10% (v v -1 ) Cyanex 272 and 5% (v v -1 ) TBP in kerosene, O/A = 1/2) at pH = 5.9 to recover Ni.
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