| 摘要 |
A device for evaporation of a solution based on solvent and compounds or solutes inside an enclosure comprises different evaporation zones separated by separating partitions into several distinct elementary chambers enabling fractionated evaporation via outlets generating a plurality of separate vapor flows specific to each constituent. The solution is injected into the first chamber subjected to the lowest temperature so as to impregnate a porous mobile element that passes through the different partitions, being successively in contact with said chambers heated to increasing temperatures. A neutral carrier gas is injected in the vicinity of the partitions for control of the pressure losses of the gas flows between the different chamber. |
