公开(公告)号：US3660307A

公开(公告)日：1972-05-02

申请号：US3660307D

申请日：1969-04-04

Applicant: HOECHST AG

Inventor： SCHERER OTTO ,  RAMMELT PAUL PETER ,  KORINTH JURGEN ,  FRISCH PETER

IPC: C07C17/20 ,  B01J23/92 ,  B01J27/06 ,  B01J38/46 ,  C07B61/00 ,  C07C17/00 ,  C07C19/10 ,  C07C19/12 ,  C07C67/00 ,  B01J11/76 ,  B01J11/02

CPC classification number: B01J27/06 ,  B01J38/46

Abstract: PROCESS FOR REGENERATING FLUORINATION CATALYSTS OF THE CHROMOXY-FLUORIDE GROUP, WHEREIN HYDROGEN FLUORIDE IS PASSED OVER THE CATALYST AT 100*-600*C. IN AN AMOUNT OF AT LEAST 5 G. PER LITER OF CATALYST PER HOUR. BY THE PROCESS THE INITIAL ACTIVITY OF SAID CATALYSTS CAN BE RESTORED IN AN ECONOMIC WAY.