Back to results
US 2014/0228600 A1Published application
Process for the manufacture of hydrochlorofluoroolefins
AssigneeArkema Inc.
InventorsMaher Y. Elsheikh, Philippe Bonnet, John A. Wismer, Sri R. Seshadri
Life of this patent
Estimating the term…
Abstract
The invention also relates a process for the manufacture of trans 1-chloro3,3,3-trifluoropropene. The process comprises an isomerization step from cis 1233zd to trans 1233zd.
Claims8
A process for manufacturing trans 1-chloro 3,3,3 trifluoro propene (E-1233zd) from 1,1,3,3- tetrachloropropene (1230za) and/or 1,1,1,3,3-pentachloropropane (240fa) comprising the steps of:
- fluorination of 1,1,3,3-tetrachloropropene (1230za) and/or 1,1,1,3,3-pentachloropropane (240fa) to a mixture comprising cis 1233zd (Z-1233zd) and trans 1233zd (E-1233zd);
- followed by
- separation of said cis 1233zd (Z-1233zd) from said trans 1233zd (E-1233zd);
- followed by
- recycling said cis 1233zd (Z-1233zd) to said fluorination step where said cis 1233zd (Z-1233zd) is isomerized to form trans 1233zd (E-1233zd).
2 more elements
Dependencies are inferred from the claim text.