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US 8,975,454 B2Granted
Process for producing 2,3,3,3-tetrafluoropropene
AssigneeHoneywell International Inc.
InventorsDaniel C. Merkel, Konstantin A. Pokrovski, Hsueh S. Tung, Haiyou Wang
Life of this patent
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Abstract
The instant invention relates to a process and method for manufacturing 2,3,3,3-tetrafluoropropene by dehydrohalogenating a reactant stream of 2-chloro-1,1,1,2-tetrafluoropropane that is substantially free from impurities, particularly halogenated propanes, propenes, and propynes.
Claims11
A process for making a 2,3,3,3-tetrafluoropropene product having greater than 99.5 weight percent purity and containing less than about 500 parts per million of any saturated and unsaturated impurity comprising:
- providing a distillation inseparable feed stream of 2-chloro-1,1,1,2-tetrafluoropropane and at least one impurity in an amount greater than about 500 parts per million;
- treating the feed stream until it is substantially free from the at least one impurity;
- and
- dehydrohalogenating the feed stream to produce 2,3,3,3-tetrafluoropropene.
1 more element
Dependencies are inferred from the claim text.