Azeotropic compositions comprising hydrogen fluoride and fluorocarbons

Abstract

The present application discloses compositions comprising hydrogen fluoride and fluorinated compounds (e.g., hydrochlorofluorocarbons), wherein the fluorinated compound is present in the composition in an amount effective to form an azeotrope composition or azeotrope-like composition with the hydrogen fluoride.

1 - 6 . (canceled) 
     
     
         7 . A composition comprising,
 i) hydrogen fluoride, and   ii) a compound selected from the group consisting of:   2,3-dichlorohexafluoro-2-butene;   (E)-2,3-dichlorohexafluoro-2-butene; and   (Z)-2,3-dichlorohexafluoro-2-butene;   wherein the compound is present in an amount effective to form an azeotrope or an azeotrope-like composition with the hydrogen fluoride.   
     
     
         8 . The composition of  claim 7 , wherein the compound is (E)-2,3-dichlorohexafluoro-2-butene, wherein the (E)-2,3-dichlorohexafluoro-2-butene is present in an amount effective to form an azeotrope or an azeotrope-like composition with the hydrogen fluoride. 
     
     
         9 . The composition of  claim 8 , wherein the composition has a boiling point of from about 0° C. to about 130° C. at a pressure of from about 5 psia to about 1000 psia. 
     
     
         10 . The composition of  claim 7 , wherein the compound is (Z)-2,3-dichlorohexafluoro-2-butene, wherein the (Z)-2,3-dichlorohexafluoro-2-butene is present in an amount effective to form an azeotrope or an azeotrope-like composition with the hydrogen fluoride. 
     
     
         11 . The composition of  claim 10 , wherein the composition has a boiling point of from about 0° C. to about 130° C. at a pressure of from about 5 psia to about 1000 psia. 
     
     
         12 . The composition of  claim 7 , wherein the compound is a mixture of (E)-2,3-dichlorohexafluoro-2-butene and (Z)-2,3-dichlorohexafluoro-2-butene isomers, wherein the mixture of 2,3-dichlorohexafluoro-2-butene are present in an amount effective to form an azeotrope or an azeotrope-like composition with the hydrogen fluoride. 
     
     
         13 . The composition of  claim 12 , wherein the composition has a boiling point of from about 0° C. to about 130° C. at a pressure of from about 5 psia to about 1100 psia. 
     
     
         14 - 30 . (canceled) 
     
     
         31 . The composition of  claim 7 , wherein the composition comprises:
 from about 75 to about 99 mole percent hydrogen fluoride and from about 25 to about 1 mole percent (E)-2,3-dichlorohexafluoro-2-butene, wherein the composition has a boiling point of from about 0° C. to about 130° C. at a pressure of from about 5 psia to about 1000 psia; or   from about 75 to about 99 mole percent hydrogen fluoride and from about 25 to about 1 mole percent (Z)-2,3-dichlorohexafluoro-2-butene, wherein the composition has a boiling point of from about 0° C. to about 130° C. at a pressure of from about 5 psia to about 1000 psia; or   from about 75 to about 99 mole percent hydrogen fluoride and from about 25 to about 1 mole percent 2,3-dichlorohexafluoro-2-butene, wherein the composition has a boiling point of from about 0° C. to about 130° C. at a pressure of from about 5 psia to about 1100 psia.   
     
     
         32 - 33 . (canceled)