Patent ID: 9174896
Filing Date: 2015-11-03
Classification: C07C

Abstract:
1. A vapor phase process for making internal fluorobutenes comprising contacting a halobutane starting material selected from the group consisting of CF 2 HCHClCH 2 CCl 2 H, CF 2 HCHClCH 2 CCl 3 , CF 3 CHClCH 2 CCl 2 H, CF 3 CHClCH 2 CCl 3 , CF 3 CHClCHClCCl 2 H, CF 3 CHClCHClCCl 3 , CF 3 CCl 2 CH 2 CCl 2 H, CF 3 CCl 2 CH 2 CCl 3 , CF 3 CCl 2 CHClCCl 2 H, CF 3 CCl 2 CHClCCl 3 , CF 3 CClFCHClCCl 2 H, CF 3 CClFCHClCCl 3 , CF 3 CClFCH 2 CCl 2 H, CF 3 CClFCHFCCl 2 H, CF 3 CClFCHFCCl 3 , CF 3 CClHCHFCCl 2 H and CF 3 CClHCHFCCl 3 , with HF in a reaction zone in the presence of a catalyst consisting of chromium oxyfluoride to produce a product mixture comprising at least one fully fluorinated internal fluorobutene, wherein the at least one internal fluorobutene is present in the product mixture at an amount of greater than 15 mole percent.