Pignat's Pulsed Liquid-Liquid Extraction trainer (ELL/4000) is a standard-size, floor-standing unit that provides an in-depth, hands-on understanding of the basic, practical, and theoretical elements of the liquid-liquid extraction process.
Liquid-liquid extraction is a fundamental material transfer operation in chemical engineering based on the varying solubility of the components of a mixture. It entails extracting a compound from a solution (solute dissolved in a diluent) by selective transfer to a second liquid (solvent), non-miscible with the first and with different densities.
The unit is used manually, with flows controlled by manual valves and flowmeters. The unit has a 2"-diameter glass column, which enhances the visual experience of the extraction process. A pneumatic pulsator increases the contact between the two phases and mass transfer. Students learn how to determine the interphase level, material balance, efficiency of the column, and more.
The unit is used manually, with flows controlled by manual valves and flowmeters. The unit has a stirred glass column, which enhances the visual experience of the extraction process. Students will learn how to determine the interphase level, material balance, efficiency of the column, and more.
The regeneration process is observed on the second column, which is continuously fed. An energy‐saving heat exchanger is placed between the two columns to optimize energy usage. With this unit, students are able to study various control loops, determine mass balance, and process efficiency. The unit also includes a LabView monitoring system.
The trainer allows students to study the absorption of NH3 or CO2 in water, determine the material balance of the gaseous solute, influence of operational parameters on efficiency of the column, thermal balance, packing factor, and more. Educational handbook and technical manual included.
Technical Laboratory Systems, Inc 7827 Columbia Dr. Katy, TX 77494
