Catalyst composition consisting essentially of the oxides of iron, rare earth and zirconium

Claim 2

A CATALYST COMPOSITION CONSISTING ESSENTIALLY OF IRON OXIDE, FROM ABOUT 1 TO ABOUT 50 WEIGHT PERCENT OF A RARE EARTH OXIDE BASED ON THE WEIGHT OF SAID IRON OXIDE AND FROM ABOUT 2 TO ABOUT 20 WEIGHT PERCENT OF ZIRCONIUM OXIDE BASED ON THE COMBINED WEIGHT OF SAID IRON OXIDE AND RARE EARTH OXIDE.

Claim 3

A PROCESS FOR PREPARING A FLUORINATION CATALYST WHICH COMPRISES TREATING AN AQUEOUS SOLUTION OF SALTS OF IRON, ZIRCONIUM AND RARE METALS WITH AMMONIUM HYDROXIDE TO CAUSE COPRECIPITATION OF THE METALS IN THE FORM OF HYDROUS OXIDES, THE AMOUNTS OF SAID AQUEOUS SOLUTIONS BEING SO SELECTED THAT THE RESULTING PH IS BETWEEN ABOUT 8.5 AND ABOUT 9.5 AND THE RESULTING HYDROUS OXIDE CONTAINS FROM ABOUT 1 TO ABOUT 50 WEIGHT PERCENT OF RARE EARTH OXIDE BASED ON THE WEIGHT OF SAID IRON OXIDE AND FROM ABOUT 2 TO ABOUT 20 WEIGHT PERCENT ZIRCONIUM OXIDE BASED ON THE COMBINED WEIGHT OF SAID IRON OXIDE AND RARE EARTH OXIDE, SEPARATING THE HYDROUS OXIDE COPRECIPITATE FROM THE AQUEOUS MEDIUM AND DRYING SAID HYDROUS OXIDE COPRECIPITATE.

Claim 4

A PROCESS FOR PREPARING A FLUORINATION CATALYST WHICH COMPRISES TREATING AN AQUEOUS SOLUTION OF SALTS OF IRON, ZIRCONIUM AND RARE METALS WITH AMMONIUM HYDROXIDE TO CAUSE COPRECIPITATION OF THE METALS IN THE FORM OF HYDROUS OXIDES, THE AMOUNTS OF SAID AQUEOUS SOLUTIONS BEING SO SELECTED THAT THE RESULTING PH IS BETWEEN ABOUT 8.5 AND ABOUT 9.5 AND THE RESULTING HYDROUS OXIDE CONTAINS FROM ABOUT 1 TO ABOUT 50 WEIGHT PERCENT OF RARE EARTH OXIDE BASED ON THE WEIGHT OF SAID IRON OXIDE AND FROM ABOUT 2 TO ABOUT 20 WEIGHT PERCENT ZIRCONIUM OXIDE BASED ON THE COMBINED WEIGHT OF SAID IRON OXIDE AND RARE EARTH OXIDE, SEPARATING THE HYDROUS OXIDE COPRECIPITATE FROM THE AQUEOUS MEDIUM AND DRYING SAID HYDROUS OXIDE COPRECIPITATE.