Fluorination process and reactor
AssigneeHoneywell International Inc.
InventorsDaniel C. Merkel, Hsueh Sung Tung, Haiyou Wang, Haluk Kopkalli, Yuon Chiu
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Abstract
The invention relates to a process to prepare tetrahalopropenes, such as 2-chloro-3,3,3-trifluoropropene (1233xf). The process comprises atomizing a feed material, such as 1,1,2,3-tetrachloropropene (1230xa) and the like, and mixing it with superheated HF to form a vaporized composition of feed material and HF with substantially instantaneous contact with a vapor phase fluorination catalyst. The invention extends catalyst life and forestalls catalyst deactivation.
Claims13
A reactor apparatus comprising:
- a reaction chamber;
- a heating chamber disposed on the reaction chamber, said heating chamber comprising a mixing area in fluid communication with said reaction chamber;
- at least first and second feed lines in fluid communication with said mixing area;
- and
- an atomizing nozzle disposed on at least said first feed line, said nozzle having an exit into said mixing area.
-14. (canceled)
A process to prepare 2-chloro-3,3,3-trifluoropropene (1233xf) comprising:
- a) atomizing a starting composition comprising at least one compound having a structure selected from Formula I, II and II:
- CX2═CCl—CH2X (Formula I)
- CX3—CCl═CH2 (Formula II)
- CX3—CHCl—CH2X (Formula III)
- wherein X is independently selected from F, Cl, Br and I, provided that at least one of X is not F;
- b) contacting the atomized composition with superheated HF to form a vaporized starting composition under conditions effective to form 1233xf.
Dependencies are inferred from the claim text.