Crystallizer

Details Crystallizer Crystallizer

B - Operations, Transporting

01

D

161/36

B01D 9/02 (2006.01) B01D 9/00 (2006.01)

Patent

CA 1213512

ABSTRACT OF THE DISCLOSURE A crystallizer comprising a mixing zone of an organic solvent containing ions of a metal extracted therein and an aqueous separating solution provided at the upper part of a main crystallizer body, a lower-part opened organic solvent settling zone provided outside of the mixing zone for receiving and settling the organic solvent overflowing out of the mixing zone, a crystal developing zone having a downwardly narrowing cross section provided at the lower part of the main crystallizer body, a descending pipe extend- ing from the lower end of the mixing zone to the lower part of the crystals developing zone, a crystal fluidizing medium inlet provided at the lower end of the crystals developing zone, a separating solution discharge pipe and a crystal discharge pipe. By applying an aqueous separating solution, in which the solubility of the metallic salt in object is small, for transferring metal ions in an organic solvent there- in, it is possible to obtain the crystals of said metallic salt with no need of concentrating the separating solution by evaporation.

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