April 2018

Process Optimization

An optimized approach to choosing solvent for the liquid-liquid extraction process

Liquid-liquid extraction (LLE) is a traditional method used for separating a specific component (solute) from the carrier liquid phase.

Gupta, A., Jain, S., Reliance Industries Ltd.

Liquid-liquid extraction (LLE) is a traditional method used for separating a specific component (solute) from the carrier liquid phase. The process works on the principle of difference in solubility of the component in the carrier liquid and solvent. The higher solubility of the component to be extracted in the solvent compared to other components in the carrier liquid results in the formation of two phases. These phases are commonly referred to as extract phase (rich in the target component) and raffinate phase (lean in the target component). Choosing the right solvent for extraction is key to the success of the extraction process, and the efficiency of the solvent drives the economics of t

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