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Twisselmann Extraction - by Behr Germany

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Twisselmann Extraction - by Behr Germany

The Twisselmann method of extraction is a continuous high-temperature extraction. It

functions in a similar way to Soxhlet extraction. However in the Twisselmann extractor the

temperature in the sample is very hot, i.e. close to the solvent’s boiling point. This improves

solubility and reduces the extraction time.

The extraction temperature is higher because the condensed solvent from above and the

rising hot solvent vapour from below flow through the extraction thimble at the same time

and mix there. The temperature of this mixture is a lot higher than that of the condensed

solvent.

 

The Twisselmann extraction time is up to 50% shorter than the Soxhlet extraction time.

 

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