After the reaction process is over, we sometimes require to work up processes to remove/separate out the solute from solvent. This can be achieved through a Liquid extractor when the 2 solvents are immiscible. The liquid extractor has a light phase and heavy phase going counter current. The light phase is introduced from the bottom of the extractor. The heavy phase is introduced from the top. A set of rotating discs are there at the various levels of the extractor. These discs are being rotated by a motor. The extraction thus takes place with the assistance of the rotating disc. The light phase extracts the product (solute) from the heavy phase solvent to the other solvent (light phase). The Liquid extractor Rotating Disc type (RDC) has a column height of about 1 meter and a number of discs ranging between 15 to 20 as per the requirement of the client. For the optimal performance of the extractor, it is required that the gap between the disc and the extractor wall is minimal. In order to facilitate the visible process, the extractor is made of glass. The discs are SS, PTFE lined.
