Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction

Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction

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What the effect of the residence time on the leaching process tanks for potassium chloride (1 reply)

C
CharlieAlAfensh
4 weeks ago
CharlieAlAfensh 4 weeks ago

There is a solution that contains sodium chloride and potassium chloride, and we want to dissolve the largest possible amount of potassium chloride in the solution

J
Jorge
1 week ago
Jorge 1 week ago

The dissolution of potassium chloride is related to the temperature. It means that a high temperature promotes the dissolution, but a lower temperature reduces the leaching rate. If your leaching process is performed at environment temperature, the dissolution of potassium will show a limit no matter if you increase the residence time in the tanks. This means that the solution will hold increasingly smaller amounts of potassium chloride.

If the temperature is not increased, the energy of the water molecules will not enough mobility. In other words, the water molecules will not be very effective to make weaker the ionic bonds that are holding the particles of potassium chloride.

The first step is to perform leaching test at the lab to the determine the effect of different levels o temperature on the dissolution. It is necessary to indicate that the dissolution has a limit. Other parameter to evaluate is the percent solids. It is important to determine the limit.


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