OptimEXT™: Integrated Solution for Extraction and Solvent Recovery

OptimEXT™ is Sulzer's newest separation solution that integrates liquid-liquid extraction with solvent recovery to achieve new heights of performance, reliability, and cost-effectiveness.

Built on proven extraction platforms, especially around the well-known Kühni™ agitating column, OptimEXT™seamlessly integrates with Sulzer’s high-performance distillation units for superior extraction and solvent recovery.


Three mini pilot columns for testing liquid-liquid extraction
Miniplants and pilot columns
In spite of considerable progress in the research and development of liquid-liquid extraction technology, designing an industrial-scale extractor based on theoretical and empirical methods is still challenging, and therefore a systematic test method is essential for a reliable scale-up.
Internals of Kühne agitated columns (ECR) for liquid-liquid extraction
Kühni agitated columns (ECR)
In extraction with high mass transfer and/or changing physical properties, this is the column of choice. The geometry of the agitated compartments can be adapted for changing hydrodynamic conditions. Other main features are special mixing turbines and perforated partition plates.
Liquid-liquid extraction packing
Packed extraction columns (ECP)
The key benefit of the packed column for liquid-liquid extraction is the high throughput, which results in small column diameters. Together with specially adapted liquid distributors, our structured packing ensures optimum performance.
Three mixer-settler devices in different sizes
Mixer-settler and mixer-settler-columns
Mixer-settlers operate with a purely stage-wise contact. After every mixer there is a settler. Mixer-settlers can be operated in a multistage, co- or countercurrent fashion. Take advantage of this stage-wise contact while keeping the small footprint of a column.
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