Patent Number: 6,166,276

Title: Method for producing heptafluoropentane

Abstract: The invention relates to a method for producing 1,1,2,2,3,3,4-heptafluorocyclopentane. This method includes the step of reducing 1,1-dichlorooctafluorocyclopentane by hydrogen in the presence of a hydrogenation catalyst. This catalyst contains at least one first metal selected from metals of 8, 9, and 10 groups of periodic table, such as iron, cobalt, palladium, platinum, rhodium, ruthenium, iridium, and osmium. According to this method, it is possible to produce 1,1,2,2,3,3,4-heptafluorocyclopentane with high yield and high selectivity.

Inventors: Sakyu; Fuyuhiko (Saitama, JP), Takada; Naoto (Saitama, JP), Imura; Hideaki (Saitama, JP), Komata; Takeo (Saitama, JP)

Assignee: Central Glass Company, Limited

International Classification: B01J 23/56 (20060101); B01J 23/54 (20060101); C07C 17/23 (20060101); C07C 17/00 (20060101); C07C 017/10 ()

Expiration Date: 12/26/2017