Die Erfindung betrifft ein Verfahren zur Aufarbeitung von bei der Laktosegewinnung aus Molkenpermeat zurückbleibender Melasse. Dabei wird aus der Melasse eine mineralisch abgereicherte Komponente abgetrennt, aufkonzentriert, kristallisiert und eine ausgefällte kristalline Phase abgetrennt.Processing molasses comprises: extracting the molasses from a whey treatment process, in which whey is first extracted from protein by membrane separation and separated from lactose by a crystallization procedure； adjusting the dry matter content of the molasses； isolating a mineral depleted component by separating minerals from the molasses； concentrating the mineral depleted component by removal of water by evaporation (4)； crystallizing the concentrated component； separating the crystal phase from the liquid phase； and washing (7) the separated crystalline phase with a washing liquid. Processing molasses comprises: extracting the molasses from a whey treatment process, in which whey is first extracted from protein by membrane separation and separated from lactose by a crystallization procedure； adjusting the dry matter content of the molasses supplied to process to = 10%； isolating a mineral depleted component by separating minerals from the molasses； concentrating the mineral depleted component by removal of water by evaporation (4)； crystallizing the concentrated component； separating the crystal phase precipitated by crystallizing from the liquid phase； and washing (7) the separated crystalline phase with a washing liquid. The mother-liquor provides molasses having a dry matter content of 18-35%. The separation of minerals from the molasses is carried out by electrodialysis (3). The adjustment of the dry matter content is performed by adding vapors arising in the evaporation step.
