Azeotropic or quasi-azeotropic composition comprising trifluoropropyne
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United States of America Patent
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Nov 26, 2019
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Jan 17, 2019
app pub date -
Mar 3, 2017
filing date -
Mar 4, 2016
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Abstract
The invention relates to an azeotropic or quasi-azeotropic composition comprising hydrochloric acid and trifluoropropyne. The invention also relates to a method for separating 2,3,3,3-tetrafluoropropene and trifluoropropyne from a composition A containing 2,3,3,3-tetrafluoropropene and trifluoropropyne, said method comprising the steps of bringing said composition A into contact with an inorganic compound in order to form a composition B; and distilling composition B in order to from a first flow B1 containing trifluoropropyne and the inorganic compound, and a second flow B2 containing 2,3,3,3-tetrafluoropropene.
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