Method for separating 2-alkylanthracenes and use thereof for producing hydrogen peroxide

A method of preparing a 2-alkylanthracene, wherein the method comprises the steps of:

• Separating 2-alkylanthracene from the reaction product of an anthracene alkylation reaction, said anthracene alkylation reaction is a reaction of anthracene with an alkylation reagent under an alkylation condition and in the presence of an alkylation reaction solvent and a catalyst;
• Wherein the reaction product of the anthracene alkylation reaction contains anthracene and a product of a series of alkylanthracenes containing 2-alkylanthracene;
• Preferably, the alkyl is one or more, preferably one of C4-C7 alkyl, for example C4-C6 alkyl, particularly preferably, the alkyl is selected from linear or branched butyl, linear or branched pentyl, linear or branched hexyl, and linear or branched heptyl, most preferably, the alkyl is one of linear or branched butyl, linear or branched pentyl, linear or branched hexyl, and linear or branched heptyl.