Due to environmental concerns, the graphite slope plate evaporation method is no longer in use; it is intended to switch to a zinc chloride crystallization evaporator. How many effects would be appropriate? The pH value of the liquid is 4 before evaporation; is neutralization necessary? Otherwise, can the evaporator withstand corrosion?
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I need everyone’s help and guidance regarding the crystallization of zinc chloride using multi-effect evaporators
Use a graphite evaporator. 2 effects are sufficient
It is feasible to concentrate using a graphite evaporator within a certain concentration range, but it is difficult to concentrate zinc chloride to the point where crystallization occurs.