公开(公告)号：US3804778A

公开(公告)日：1974-04-16

申请号：US24967272

申请日：1972-05-01

Applicant: RHONE PROGIL

Inventor： SALINDRES R

IPC: B01J21/00 ,  C07B39/00 ,  C07C45/63 ,  C07C51/363 ,  C07C53/18 ,  H01L29/00 ,  B01J11/78

CPC classification number: B01J21/00 ,  C07B39/00 ,  C07C45/63 ,  C07C51/363 ,  C07C53/18 ,  H01L29/00 ,  C07C49/167

Abstract: A PROCESS FOR THE PREPARATION OF A FLUORINATION CATALYST WHEREIN CHROMIUM AND NICKEL SALTS OF ORGANIC ACIDS ARE TREATED AT AN ELEVATED TEMPERATURE UNDER VACUUM OR IN AN INERT ATMOSPHERE TO PRODUCE NON-STOICHIOMETRIC INORGANIC COMPOUNDS IN WHICH THE CHROMIUM HAS A VALENCE BETWEEN 2 AND 3 AND THE NICKEL HAS A VALENCE BETWEEN 0 AND 2, AND THE MIXTURE OF THE NON-STOICHIOMETRIC COMPOUNDS THEREBY OBTAINED IS SHAPED AND IS THEN CONTACTED WITH ANHYDROUS HYDROGEN FLUORIDE AT AN ELEVATED TEMPERATURE. THE CATALYSTS OF THE PRESENT INVENTION ARE USEFUL IN THE PREPARATION OF PERFLUORO COMPOUNDS BY REACTION OF PERHALOGENATED COMPOUNDS WITH HYDROGEN FLUORIDE.