Azeotrope or azeotrope-like compositions of trifluoroiodomethane (CF3I) and 1,1,3,3,3,-pentafluoropropene (HFO-1225zc)
AssigneeHoneywell International Inc.
InventorsChristian Jungong, Daniel C. Merkel, Haiyou Wang, Hang T. Pham, Ryan J. Hulse
Life of this patent
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Abstract
The present disclosure provides azeotrope or azeotrope-like compositions including trifluoroiodomethane (CF3I) and 1,1,3,3,3-pentafluoropropene (HFO-1225zc), and a method of forming an azeotrope or azeotrope-like composition comprising the step of combining 1,1,3,3,3-pentafluoropropene (HFO-1225zc) and trifluoroiodomethane (CF3I) to form an azeotrope or azeotrope-like comprising 1,1,3,3,3-pentafluoropropene (HFO-1225zc) and trifluoroiodomethane (CF3I) having a boiling point of about −25.63° C.±0.30° C. at a pressure of about 14.44 psia±0.30 psia.
Claims20
A composition comprising an azeotrope or azeotrope-like composition consisting essentially of effective amounts of 1,1,3,3,3-pentafluoropropene (HFO-1225zc) and trifluoroiodomethane (CF3I).
A composition comprising an azeotrope or azeotrope-like composition consisting essentially of 1,1,3,3,3-pentafluoropropene (HFO-1225zc) and trifluoroiodomethane (CF3I) having a boiling point of about −25.63° C.±0.30° C. at a pressure of about 14.44 psia±0.30 psia.
A method of forming an azeotrope or azeotrope-like composition comprising the step of combining 1,1,3,3,3-pentafluoropropene (HFO-1225zc) and trifluoroiodomethane (CF3I) to form an azeotrope or azeotrope-like composition consisting essentially of 1,1,3,3,3-pentafluoropropene (HFO-1225zc) and trifluoroiodomethane (CF3I) having a boiling point of about −25.63° C.±0.30° C. at a pressure of about 14.44 psia±0.30 psia.
A method of separating 1,1,3,3,3-pentafluoropropene (HFO-1225zc) and trifluoroiodomethane (CF3I) from a primary composition comprising 1,1,3,3,3-pentafluoropropene (HFO-1225zc), trifluoroiodomethane (CF3I) and at least one impurity, including the steps of:
- forming, within the primary composition, a secondary composition which is an azeotrope or azeotrope-like composition consisting essentially of effective amounts of 1,1,3,3,3-pentafluoropropene (HFO-1225zc) and trifluoroiodomethane (CF3I) having a boiling point of −25.63° C.±0.30° C. at a pressure of about 14.44 psia±0.30 psia;
- and
- separating the secondary composition from the primary composition at least one impurity.
Dependencies are inferred from the claim text.