Azeotropes of methyl chloride with fluorocarbons
AssigneeHoneywell International Inc.
InventorsRaymond Hilton Thomas, Hang T. Pham, Rajiv Ratna Singh, Natalie Merrill
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Abstract
Azeotropic or azeotrope-like compositions of the present technology include methyl chloride and at least one hydrofluorocarbon or hydrofluoro-olefin. In some examples, the at least one hydrofluorocarbon or hydrofluoro-olefin can be selected from the group consisting of 1,1,1,2-tetrafluoroethane and 1,3,3,3-tetrafluoropropene. The azeotropic or azeotrope-like compositions can be used as solvents or diluents in polymerization processes, including slurry polymerization processes.
Claims14
An azeotropic or azeotrope-like composition comprising methyl chloride and at least one hydrofluorocarbon or hydrofluoro-olefin.
A polymerization medium suitable to polymerize one or more monomers to form a polymer, the polymerization medium comprising:
- at least one catalyst;
- and
- a diluent that includes an azeotropic or azeotrope-like composition comprising methyl chloride and at least one hydrofluorocarbon or hydrofluoro-olefin.
A polymerization process comprising the steps of:
- providing one or more monomers;
- contacting the one or more monomers in a reactor with at least one catalyst in the presence of a diluent, wherein the diluent includes an azeotropic or azeotrope-like composition comprising methyl chloride and at least one hydrofluorocarbon or hydrofluoro-olefin.
Dependencies are inferred from the claim text.