The invention discloses a
hydrogen peroxide working solution regenerant used in preparation of a
hydrogen peroxide process according to an
anthraquinone method and a preparation method of the
hydrogen peroxide working solution regenerant. The regeneration effect of the
hydrogen peroxide working solution regenerant is better than that of the conventional
activated aluminum oxide anthraquinone degradation product regenerant used in the industry. Compared with the conventional regenerant, after regeneration, the quantity of effective
anthraquinone is increased by 0.8 to 2.1 percent. During the preparation process, the reaction between
magnesium oxide and water is very slow, the
reaction product magnesium hydroxide is hard to dissolve in water, covers
magnesium oxide to inhibit further reaction between magnesium
oxide and water, and can properly improve the
alkalinity of a working solution, while slight
alkalinity provides convenience for improving the activity and the selectivity of a
palladium catalyst, accelerating the speed of the hydrogenation, and avoiding a great amount of degradation. Meanwhile, the regenerant provided by the invention has favorable stability, is less susceptible to pulverization in the working solution, and low in adsorption of effective anthraquinone in the working solution; the preparation method is simple in process step, can be suitable for large-scale industrial production, and has a relatively high economical effect.