Microfluidic process monitor for industrial solvent extraction system

A system for performing liquid-liquid extraction, said system comprising a number of devices enabling a plurality of unit operations, said substrates comprising:

• a. a first plate with a first surface and a second surface, wherein a raised area is formed on the first surface of said first plate and wherein the raised area defines one surface of a four-sided microfluidic channel;
• b. a second plate with a first surface and a second surface, wherein the second surface is flat and wherein the second surface defines a surface of the microfluidic channel that opposes the raised area of the first plate;
• c. a gasket disposed between the first surface of said first plate and the second surface of said second plate, wherein said gasket is adapted to accommodate the raised area on the first surface of the first plate and wherein said gasket has a portion that extends beyond the raised area of the first surface of the first plate, wherein the portion that extends beyond the raised area defines the remaining two sides of the microfluidic channel;
• and
• d. a liquid that flows through the microfluidic channel, wherein said liquid is comprised of at least two immiscible liquids and wherein at least one immiscible liquid has at least two dissolved constituents;
• and
• e. a phase separator, wherein the phase separator separates the at least two immiscible liquids into separate streams upon exiting the microfluidic channel.