Abstract:
The present invention relates to an azeotropic or azeotrope-like mixture consisting essentially of 1,1,1,2,3,3-hexafluoropropane, hexafluoropropene and hydrogen fluoride.
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.
Abstract:
Compositions comprising multi-fluorinated olefins and HFC-32 are disclosed. Such compositions are useful particularly for in stationary refrigeration and air conditioning equipment.
Abstract:
Heterogeneous azeotrope or azeotrope-like compositions comprising Z-1-chloro-2,3,3,3-tetrafluoropropene (HCFO-1224yd(Z)) and water which may include from about 47.0 wt. % to about 99.7 wt. % Z-1-chloro-2,3,3,3-tetrafluoropropene (HCFO-1224yd(Z)) and from about 0.3 wt. % to about 53.0 wt. % water and having a boiling point between about 13.0° C. and about 14.0° C. at a pressure of between about 14.0 psia and about 15.0 psia. The azeotrope or azeotrope-like compositions may be used to as blowing agents in the formation of foams.
Abstract:
Two methods for reducing CFC impurities and, in particular, CFC-114, in the HFO-1234ze(E) production process from the reaction of CFC-113 and HF. The first method involves subjecting an intermediate or recycle stream to separation and distillation to purge CFC-113 from the process. The second method involves operating the separation at a higher pressure avoids the formation of an azeotrope between CFC-113 and HFC-245fa. The CFC-113/HFC245fa azeotrope is discussed, as well as other optional processes for removal or mitigation of CFC-113 which include further separations that remove CFC-114 from the HFO-1234ze(E) product and/or CFC-113 from the HFC-245fa feed to produce an HFO-1234ze(E) product that is largely free from CFC-114 and other CFC impurities.
Abstract:
Heterogeneous azeotrope or azeotrope-like compositions comprising Z-1-chloro-2,3,3,3-tetrafluoropropene (HCFO-1224yd(Z)) and water which may include from about 47.0 wt. % to about 99.7 wt. % Z-1-chloro-2,3,3,3-tetrafluoropropene (HCFO-1224yd(Z)) and from about 0.3 wt. % to about 53.0 wt. % water and having a boiling point between about 13.0° C. and about 14.0° C. at a pressure of between about 14.0 psia and about 15.0 psia. The azeotrope or azeotrope-like compositions may be used to as blowing agents in the formation of foams.
Abstract:
Provided are azeotrope-like compositions consisting essentially of 1,1,1,2-tetrafluoropropene and 1,1,1,2-tetrafluoroethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
Abstract:
Compositions comprising multi-fluorinated olefins and HFC-32 are disclosed. Such compositions are useful particularly for in stationary refrigeration and air conditioning equipment.
Abstract:
Disclosed are compositions useful in a wide variety of applications, including heat transfer fluids which possess a highly desirable and unexpectedly superior combination of properties, and heat transfer systems and methods based on these fluids. The preferred heat transfer fluid comprises from about 1 to about 40 percent, on a weight basis, of carbon dioxide (CO2) and from about 99 to about 60 percent, on a weight basis, of a compound having the Formula I XCFzR3-z (I), where X is a C2 or a C3 unsaturated, substituted or unsubstituted, alkyl radical, each R is independently Cl, F, Br, I or H, and z is 1 to 3. A preferred compound of Formula I is tetrafluoropropene, particularly 1,1,1,3-tetrafluoropropene and/or 1,1,1,3-tetrafluoropropene.
Abstract:
Azeotropic or azeotrope-like mixtures of 1,3-dichloro-3,3-difluoroprop-1-ene (HCFO-1232zd) and hydrogen fluoride (HF). Such compositions are useful as a feed stock or intermediate in the production of 1,1,1,3,3-pentafluoropropane (HFC-245fa),1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and 1,3,3,3-tetrafluoropropene (HFO-1234ze).