Azeotrope or azeotrope-like compositions of trifluoroiodomethane (cf3i) and water
AssigneeHoneywell International Inc.
InventorsHaluk Kopkalli, Jennifer W. McClaine, Tao Wang, Richard Wilcox, Yuon Chiu, Hang T. Pham
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Abstract
Heterogeneous azeotrope or azeotrope-like compositions comprising trifluoroiodomethane (CF3I) and water which may include from about 47.7 wt. % to about 99.0 wt. % trifluoroiodomethane (CF3I) and from about 1.0 wt. % to about 52.3 wt. % water and having a boiling point between about 18.0° C. and about 19.0° C. at a pressure of between about 58.0 psia and about 60.0 psia. The azeotrope or azeotrope-like compositions may be used to separate impurities from trifluoroiodomethane (CF3I).
Claims17
A composition comprising a heterogeneous azeotrope or azeotrope-like composition consisting essentially of from about 47.7 wt. % to about 99.0 wt. % trifluoroiodomethane (CF3I) and from about 1.0 wt. % to about 52.3 wt. % water.
A method of forming a heterogeneous azeotrope or azeotrope-like composition comprising the step of combining from about 47.7 wt. % to about 99.0 wt. % trifluoroiodomethane (CF3I) and from about 1.0 wt. % to about 52.3 wt. % water to form an azeotrope or azeotrope-like composition consisting essentially of trifluoroiodomethane (CF3I) and water and having a boiling point between about −18.0° C. and about 19.0° C. at a pressure of between about 58.0 psia and about 60.0 psia.
A method of separating at least one impurity from a composition including trifluoroiodomethane (CF3I), water, and at least one impurity, comprising the steps of:
- modifying the relative amounts of trifluoroiodomethane (CF3I) and water and subjecting the composition to conditions effective to form a heterogeneous azeotrope or azeotrope-like composition consisting essentially of from about 47.7 wt. % to about 99.0 wt. % trifluoroiodomethane (CF3I) and from about 1.0 wt. % to about 52.3 wt. % water;
- and
- separating the heterogeneous azeotrope or azeotrope-like composition from the at least one impurity.
Dependencies are inferred from the claim text.