Azeotrope-like compositions of (Z)-1-chloro-3,3,3-trifluoropropene and hydrogen fluoride
AssigneeHoneywell International Inc.
InventorsRyan Hulse, Hang T Pham
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Abstract
Disclosed are azeotropic and azeotrope-like mixtures of (Z)-1-chloro-3,3,3-trifluoropropene (1233zd(Z)) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of 1233zd(Z). The latter compound is useful as a nontoxic, zero ozone depleting fluorocarbon useful as a solvent, blowing agent, refrigerant, cleaning agent, aerosol propellant, heat transfer medium, dielectric, fire extinguishing composition and power cycle working fluid.
Claims8
A method of separating 1233zd(Z) from an azeotropic or azeotrope-like mixture, said mixture consists essentially of hydrogen fluoride and (Z)-1-chloro-3,3,3-trifluoropropene (1233zd(Z)), said mixture has a boiling point of from about 0° C. to about 60° C. at a pressure of from about 3 psia to about 73 psia, wherein the hydrogen fluoride is present in an amount of from about 20 to about 35 weight percent, said method comprising the step of extracting the HF from the mixture.
Dependencies are inferred from the claim text.