CATALISADORES DE FLUORACAO EM FASE GASOSA DE DERIVADOS CLORADOS ALIFATICOS,A BASE DE OXIDO DE CROMO,E PROCESSO DE FLUORACAO EM FASE GASOSA DOS DERIVADOS CLORADOS ALIFATICOS

摘要

This invention relates to catalysts for gaseous phase fluorination of aliphatic chlorinated derivatives by hydrofluoric acid. The catalysts comprise chromium oxide microspheres obtained by a sol-gel process. This invention also relates to gaseous phase fluorination processes for aliphatic chlorinated derivatives utilizing these catalysts.