Process for the recovery of fluorinated sulphonic acid including the step of subjecting the spent acid to heat treatment with stepwise or continuously increasing temperature, withdrawing at least two fractions during the heat treatment; and recovering the fluorinated sulphonic acid from each fraction.

Processo per il recupero di acido solfonico fluorato compreso il punto di soggetto dell'acido speso al trattamento termico con temperatura per gradi o continuamente aumentante, ritirante almeno due frazioni durante il trattamento termico; e recuperando l'acido solfonico fluorato da ogni frazione.

 
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