Preparation of highly pure fluorine compounds
AssigneeSolvay Fluor und Derivate GmbH
InventorsMax Braun, Carsten Brosch, Heinz Gress
Life of this patent
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Abstract
A process for preparing purified, saturated, partially fluorinated or perfluorinated hydrocarbon compounds from crude products which are contaminated with impurity compounds which absorb light at a wavelength of λ>200 nm by irradiating the crude product with UV radiation of a wavelength of λ>200 nm and thereafter recovering highly pure, partially fluorinated or perfluorinated hydrocarbon compounds from the irradiated reaction product, for example, by simple vacuum distillation.
Claims11
A process for the preparation of a saturated, purified, partially fluorinated or perfluorinated hydrocarbon with 1 to 10 carbon atoms from a crude product which is contaminated by at least one impurity which absorbs light having a wavelength of λ>200 nm, said process comprising irradiating the crude product with UV radiation having a wavelength of λ>200 nm, and recovering the purified partially fluorinated or perfluorinated hydrocarbon from the irradiated reaction product.
A mixture of a partially fluorinated or perfluorinated hydrocarbon with 1 to 10 carbon atoms and at least one higher boiling chlorine-containing higher boiling compound, obtained by UV irradiation of a crude product which contains said partially fluorinated or perfluorinated hydrocarbon with 1 to 10 carbon atoms and at least one impurity which absorbs light at λ>200 nm.
Dependencies are inferred from the claim text.