Ammonia → Zirconium hydroxide (Zr(OH)4), (T-4)-
反応式
[Cl-].[Ti+4:2].[Cl-].[Cl-].[Cl-].[Cl-].[Zr+4:7].[Cl-].[Cl-].[Cl-].N.C([OH:14])C>>[OH-:14].[Ti+4:2].[OH-:14].[OH-:14].[OH-:14].[OH-:14].[Zr+4:7].[OH-:14].[OH-:14].[OH-:14]参加物
6
実験手順
An equimolar solutions of titanium chloride (TiCl4) and zirconium chloride (ZrCl4) in anhydrous ethanol are mixed and treated with excess aqueous ammonia solution to obtain a co-precipitate of titanium hydroxide and zirconium hydroxide. After working up said co-precipitate in a manner similar in example 1 it is calcined at 500° C. to obtain a support which is then impregnated with an appropriate amount of aqueous nickel oxalate solution and dried at 90° C. so as to obtain a supported catalyst which contains 2% by weight of nickel catalyst. The supported catalyst is then divided into four equal portions which are all reduced in reactors with hydrogen at respectively 250° C., 300° C., 400° C. and 500° C. The supported catalysts thus reduced are then tested for their activity in the conversion of benzene under the following conditions: