METHOD FOR TREATING COMPOSITION CONTAINING IMPURITIES AND FLUORINE-CONTAINING ORGANIC ACID HAVING 2-7 CARBON ATOMS

摘要

A problem to be solved by the present invention is to provide a treatment method of at least partially removing impurities from a composition containing a fluorine-containing organic acid having the carbon number of 2 to 7 and impurities.;The present invention provides a treatment method of at least partially removing impurities from a composition containing a fluorine-containing organic acid having the carbon number of 2 to 7 and impurities, the method comprising:a flocculant mixing step of mixing the composition and a flocculant; anda separating step of separating a mixed phase obtained at the mixing step into a solid phase and a liquid phase.