B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/54
B01J 23/40 (2006.01) B01J 23/10 (2006.01) B01J 23/63 (2006.01) B01J 27/08 (2006.01) B01J 37/24 (2006.01) C07C 5/22 (2006.01) C07C 5/27 (2006.01)
Patent
CA 1065295
ABSTRACT OF THE DISCLOSURE Isomerization catalysts for hydrocarbons, and particul- arly for normal paraffins and/or naphthenes are formed of at least one platinum-group metal, preferably platinum; at least one element : selected from the group consisting of rare earths and yttrium; at least one metal halide, for example aluminum trichloride; and a carrier for the foregoing metals and halide which is formed in whole or in part of at least one refractory mineral oxide, such as alumina, and additionally a halogen in combined form, preferably chlorine; the catalysts being prepared by at least one impregnation of the carrier with at least one solution containing at least one of the elements yttrium, rare earths, and platinum-group metals; at least one of the impregnating solutions including ions of the foregoing elements except the platinum-group metals; and an after- treatment by known means with at least metal halide, preferably selected from the group consisting of aluminum trichloride, alum- inum tribromide, ferric chloride, ferric bromide, beryllium di- chloride, and zinc dichloride, further modifications of the pro- cess including acidification with hydrochloric acid, calcination of the deposited metals, adjustment of the halogen content, and elimination of excess metal halide not fixed on the catalyst.
232935
Engelhard Philippe
Legendre Michel
LandOfFree
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