Resource utilization method of waste residue of 1-nitroanthraquinone produced by solvent method

The invention provides a resource utilization method of waste residues of 1-nitroanthraquinone produced by a solvent method, wherein the resource utilization method comprises the steps: S1, treating waste residues into slurry, adding sodium sulfite, heating, carrying out heat preservation reaction, filtering, washing with water, and drying a filter cake to obtain mixed nitroanthraquinone dry powder; S2, putting the mixed nitroanthraquinone dry powder and anthraquinone into mixed acid (concentrated nitric acid and concentrated sulfuric acid) together, and carrying out a dinitration reaction atthe temperature of 35-45 DEG C; S3, filtering the reaction mixture, extracting mother liquor acid, washing a filter cake with water, and drying to obtain a mixture of 1,5-dinitroanthraquinone and 1,8-dinitroanthraquinone with the total purity of 92% or above; and S4, carrying out reduced pressure distillation on the mother liquor acid to recover nitric acid, cooling the distilled mother liquor, filtering to recover the mi