I would like to ask about the fluidized-bed process using a palladium catalyst for the hydrogenation of anthraquinones to produce hydrogen peroxide. . .
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The main task is to prepare the working solution, which is then fed together with hydrogen into a hydrogenation tower equipped with a palladium catalyst
It is obtained by hydrogenating alkylanthraquinones to dihydroxyanthraquinones using hydrogen peroxide as a catalyst, followed by oxidation with air. A slurry bed continuous reaction is employed. Although the reaction proceeds relatively easily, excessive hydrogenation leads to the partial epoxidation of the alkylanthraquinone, which is known as the catalyst solution; therefore, a base is sometimes added to the catalyst. If hydrogenation catalyst remains during the subsequent oxidation process, it will cause the decomposition of hydrogen peroxide.
:lol:lol, won’t adding alkali produce salts that could clog the pores of the catalyst and affect the reaction? ? ?