Stirred Liquid-Liquid Extraction

Item Number:

ELA/100

A compact, benchtop unit that provides an in-depth, hands-on understanding of the basic, practical, and theoretical elements of the liquid-liquid extraction process.

Pignat's Stirred Liquid-Liquid Extraction trainer (ELA/100) is a compact, benchtop 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 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.

Features

Liquid-liquid extraction process in a stirred column
Tabletop unit

Specifications

2 polyethylene storage tanks, 9L
2 self-priming peristaltic pumps, variable speed
Glass decanter with light phase outlet, heavy phase feeding
Glass column
Stirring device, composed of 20 SS Rushton type stirrer, variable frequency motor
Glass decanter with heavy phase outlet, light phase feeding, draining column
Inter-phase level setting system by lateral crosshead, setting from the ground