CATALYTIC PROCESSES FOR MAKING HYDROHALOPROPANES AND HYDROFLUOROBUTANES

摘要

A process is disclosed for making hydrohalopropanes or hydrofluorobutanes. The process involves reacting a hydrofluoromethane with a fluoroolefin in the presence of a modified aluminum chloride catalyst or a modified aluminum bromide catalyst to produce a hydrohalopropane or a hydrofluorobutane. The hydrofluoromethane is CH₂F₂ or CH₃F. The fluoroolefin is CF₂=CF₂, ClFC=CF₂ or CF₃CF=CF₂.