Abstract
Most labs have a small still for quickly purifying solvents. But for Stefan Bohmdorfer and his colleagues at the University of Natural Resources & Life Sciences in Austria, that wasn’t enough. The researchers carry out a lot of chromatography and realized they had much to gain by purifying and reusing their solvents, rather than paying someone to cart them away for recycling. The team had a hard time finding a commercially available still that could do everything they wanted, including handling between 2-L bench-scale and 30-L pilot-scale amounts, having fully solvent-resistant components, and offering precise control over separating solvent fractions. So the researchers decided to build their own system. That’s not a new idea, but the team spared no detail in designing its system to handle solvents of all polarities and a wide range of boiling points and to collect fractions automatically (Org. Process Res. Dev. 2017, DOI: 10.1021/acs.oprd.7b00007). The
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