| 摘要 |
<p>1. Process for continuously producing sugar crystals from sugar juices by evaporation under vacuum, consisting in introducing a seeding magma into the first of a series of cells connected to each other and in circulating this magma successively through all the cells where it is heated to cause the evaporation of part of the juice, characterized by the fact that a portion of the juice to be processed is concentrated to bring it to oversaturation, that crystals approximately 10 mu m is size are added to the oversaturated juice, that this mixture of concentrated juice and crystals is circulated in a closed vessel the dimensions of which are selected so that the time of residence of the mixture in the said vessel lies between 3 and 15 minutes, that this mixture is introduced as seeding magma into the first cell and that the concentration of the juice is maintained in a condition of stable oversaturation by adding undersaturated juice into the first cell.</p> |
