▎ 摘　　要

NOVELTY - Purifying chromatographic n-hexane involves: (1) adsorbing and filtering a n-hexane raw material through a modified activated carbon fiber adsorption column; (2) oxidizing the filtered n-hexane raw material with ozone as an oxidizing agent; (3) removing the impurities by the adsorption column of graphene oxide, sodium hydroxide and modified 13X molecular sieve; (4) drying and removing water through 3A molecular sieve; (5) removing low-boiling point impurities by distillation; and (6) removing impurities by distillation. USE - The method is useful for purifying chromatographic n-hexane. ADVANTAGE - The method: is capable of purifying chromatographic n-hexane with high purity of 96-98% and moisture content of less than 0.006%; has fast rate and short cycle; does not introduce new impurities or generate solid waste; and uses graphene oxide and modified activated carbon fibers as impurity adsorption materials. The adsorption effects of the two adsorption materials on the impurities in the n-hexane raw material are very significant.