Methods for the dehydrochlorination of 1,1,1,3-tetrachloropropane to 1,1,3-trichloropropene
AssigneeHoneywell International Inc.
InventorsTerris Yang, Hsueh Sung Tung, Robert Johnson, Joshua Close
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Abstract
This invention relates to a method to improve 1,1,3-trichloropropene selectivity in HCC-250fb (1,1,1,3-tetrachloropropane) dehydrochlorination. In normal practice, FeCl3 is used as the catalyst for the dehydrochlorination of HCC-250fb to produce 1,1,3-tri-chloropropene. In this invention as source of water is added into the reaction system to inhibit the formation of high boiling compounds such as pentachlorocyclohexene and/or hexachlorocyclohexane. Once source of water is H2O itself. Another source of water is one or more hydrated metal halides.
Claims20
A process for the catalytic dehydrochlorination of HCC-250fb to produce 1,1,3-trichloropropene using a catalyst or catalyst mixture comprising iron halides, wherein a source of water is added into the system to inhibit the formation of high boiling compounds such as pentachlorocyclohexene and/or hexachlorocyclohexane.
A process for the dehydrochlorination of HCC-250fb to produce 1,1,3-trichloropropene using one or more iron halide compounds as the catalyst, wherein a source of water is added into the system to improve 1,1,3-trichloropropene selectivity.
Dependencies are inferred from the claim text.