Process for dehydrochlorinating...

Details Process for dehydrochlorinating... Process for dehydrochlorinating...

2009-05-27

2011-11-08

Parsa, Jafar (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C570S155000, C570S157000

Reexamination Certificate

active

08053612

ABSTRACT:
A process for making a fluorinated olefin. The process has the step of dehydrochlorinating a hydrochlorofluorocarbon having at least one hydrogen atom and at least one chlorine atom on adjacent carbon atoms in the presence of a catalytically effective amount of a catalyst composition. The catalyst composition is represented by the following: n wt. % MX/M′OyFz, wherein 0<y<1 and 0<z<2 and wherein y+z/2=1; M is an alkali metal ion selected from the group consisting of Li+, Na+, K+, Rb+, and Cs+; X is a halogen ion selected from the group consisting of F−, Cl−, Br−, and I−, M′ is a bivalent metal ion; wherein n is a weight percentage of about 0.05% to about 50% MX based on the total weight of the MX and M′OyFz, and wherein y and z are the mole fractions of oxygen and fluorine in M′OyFz, respectively. There are also methods for making catalyst compositions.

REFERENCES:
patent: 7189884 (2007-03-01), Mukhopadhyay et al.
patent: 2005/0090698 (2005-04-01), Merkel et al.
patent: 2009/0018375 (2009-01-01), Nappa et al.
patent: 2066605 (2009-06-01), None

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