Sodium aluminate → Sulfate Ion

Beteiligte Stoffe

Reaktionsschritte

An alumina hydrate was prepared by neutralization reaction of a sodium aluminate and aluminum sulfate in accordance with a method described in "Catalyst Preparation Chemistry" p. 207, by Ozaki, et al., published by Kodansha, 1980. To the amorphous and pseudo-boehmite alumina hydrate powder obtained by drying the alumina hydrate at 110° C. was dropwise added a sulfuric acid aqueous solution. Then, the mixture was kneaded, then adjusted in its water content and extrusion molded. The molded product was dried at 110° C. overnight by means of a dryer and calcined at 550° C. for 3 hours in an air stream, to obtain a sulfate ion-containing γ-alumina carrier. The content of the sulfate ion in the alumina was 8.4% by weight in terms of SO4. The sulfate ion-containing alumina carrier was impregnated with a nickel nitrate aqueous solution in a manner similar to that in the preparation of catalyst I, then dried at 110° C. and calcined at 500° C. for 3 hours in an air stream, to obtain a catalyst wherein NiO was supported in an amount of 10% by weight in terms of Ni (sulfate ion content based on total weight of catalyst after supporting of nickel oxide: 7.2% by weight in terms of SO4). Then, a butene oligomerization reaction was carried out under the same conditions as in Examples 12-17. The results are set forth in Table 11.

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