Patent ID: 7815732
Filing Date: 2010-10-19
Classification: A23G,B01D,B01F,F28F,Y10T

Abstract:
1. A device for the partial crystallisation of a phase in a solution, comprising at least one pump for circulation of the solution in a circuit of a heat exchanger formed from at least one tube in contact with a cooling circuit, wherein the circuit of the exchanger includes a zone comprising static means to maintain supercooling in order to delay the appearance of crystals, the supercooling maintenance means including a non-stick coating on at least one part of the internal walls of each tube, where the coating takes the form of a material and/or of a surface state designed to delay the appearance of crystals, and a zone comprising static supercooling rupture means to allow the appearance of crystals, the supercooling rupture means include the change of coating of the internal walls taking the form of a change of material and/or of a change of the surface state, designed to interrupt the supercooling and allow the appearance of crystals.