The goal of a distillation process or an extraction is the separation of several components from a mixture. The more controlled the distillation process, the higher the degree of purification of the different phases. The control of the process (phase separation) and of the purity of the single phase by a Schmidt +Haensch refractometer guarantee highest efficiency of your process and highest purity of your product. Valuable resources are saved by recycling pure solvents. By using a process refractometer, even a condenser failure or break-through can be monitored.