A process for reducing fluorosurfactant content of a
fluorosurfactant-containing aqueous fluoropolymer dispersion stabilized
with nonionic surfactant. The process includes reducing the
fluorosurfactant content of the stabilized fluorosurfactant-containing
aqueous fluoropolymer dispersion to a predetermined level to provide a
reduced surfactant dispersion, adding non-fluorinated anionic surfactant
to the reduced fluorosurfactant dispersion, and concentrating the reduced
fluorosurfactant dispersion. The non-fluorinated anionic surfactant is
added in stages wherein a first portion is added to the dispersion prior
to concentrating and a second portion of the non-fluorinated anionic
surfactant is added to the dispersion after concentrating.