P204 extraction

2020-08-05View Original

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The extraction solution contains 30–40 g/L of cobalt, 30–40 g/L of manganese, 5 g/L of zinc, <0.005 g/L of iron, <0.1 g/L of calcium, and <0.1 g/L of magnesium. The organic concentration is 25%; compared to 2/1, the organic phase shows 60% saponification. There are 12 extraction stages, and why does the manganese concentration follow a pattern of first decreasing and then increasing? The manganese concentration in the raffinate after 3 stages is around 18 g/L, while it is 33 g/L in the raffinate after 12 stages.

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P204 extraction

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