Azeotrope or azeotrope-like compositions of trifluoroiodomethane (CF3I) and hexafluoroacetone (HFA)
AssigneeHoneywell International Inc.
InventorsChristian Jungong, Haiyou Wang, Daniel C. Merkel, Hang T. Pham, Ryan J. Hulse
Life of this patent
Estimating the term…
Abstract
The present disclosure provides azeotrope or azeotrope-like compositions including trifluoroiodomethane (CF3I) and hexafluoroacetone (HFA), and a method of forming an azeotrope or azeotrope-like composition comprising the step of combining hexafluoroacetone (HFA) and trifluoroiodomethane (CF3I) to form an azeotrope or azeotrope-like comprising hexafluoroacetone (HFA) and trifluoroiodomethane (CF3I) having a boiling point of about −29.84° C.±0.30° C. at a pressure of about 14.40 psia±0.30 psia.
Claims20
A composition comprising an azeotrope or azeotrope-like composition consisting essentially of effective amounts of hexafluoroacetone (HFA) and trifluoroiodomethane (CF3I).
A composition comprising an azeotrope or azeotrope-like composition consisting essentially of hexafluoroacetone (HFA) and trifluoroiodomethane (CF3I) and having a boiling point of about −29.84° C.±0.30° C. at a pressure of about 14.40 psia±0.30 psia.
A method of forming an azeotrope or azeotrope-like composition comprising the step of combining hexafluoroacetone (HFA) and trifluoroiodomethane (CF3I) to form an azeotrope or azeotrope-like composition consisting essentially of hexafluoroacetone (HFA) and trifluoroiodomethane (CF3I) having a boiling point of about −29.84° C.±0.30° C. at a pressure of about 14.40 psia±0.30 psia.
A method of separating hexafluoroacetone (HFA) and trifluoroiodomethane (CF3I) from a primary composition comprising hexafluoroacetone (HFA), 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 hexafluoroacetone (HFA) and trifluoroiodomethane (CF3I) having a boiling point of about −29.84° C.±0.30° C. at a pressure of about 14.40 psia±0.30 psia;
- and
- separating the secondary composition from the primary composition at least one impurity.
Dependencies are inferred from the claim text.