| abstract |
The invention relates to the field of regenerated anthraquinone degradation products, and discloses a catalyst for regenerating anthraquinone degradation products, a preparation method thereof and a method for regenerating anthraquinone degradation products. The preparation method of the catalyst comprises: using a solution containing an alkaline earth metal salt and a silicon source to impregnate the alumina for the first time to obtain a first solid product, and then performing the first drying and the first roasting in sequence; or, using a solution containing a silicon source to A second impregnation of alumina followed by drying to obtain a first product, a third impregnation of said first product with a solution containing an alkaline earth metal salt to obtain a second solid product, followed by a second drying and a second calcination in sequence . When the prepared catalyst is applied to the hydrogen peroxide working solution containing o-methylcyclohexyl acetate, it can effectively improve the regeneration effect of the catalyst on the anthraquinone degradation product in the working solution containing o-methylcyclohexyl acetate, and the work after regeneration The increasing amount of effective anthraquinone in the liquid is significantly increased, which is conducive to improving production efficiency. |