Method for preparing holocellulose

Abstract

Provided is a method for preparing holocellulose. The method includes: mixing a biomass material and a pretreatment solution, and subjecting a resulting mixture to pretreatment and solid-liquid separation in sequence to obtain the holocellulose, where a mass percentage content of lignin in the holocellulose is lower than 6%; the pretreatment solution includes an aqueous hydrogen peroxide solution and a catalyst; the pretreatment is conducted at a pH of 2 to 7; and the catalyst includes one or more selected from the group consisting of tungstic acid, molybdic acid, tungsten carbide, molybdenum carbide, tungsten sulfide, molybdenum sulfide, heteropoly acid, and a heteropoly acid salt, where the heteropoly acid includes one or more selected from the group consisting of phosphotungstic acid and phosphomolybdic acid, and the heteropoly acid salt includes a phosphotungstate salt.

Dependencies are inferred from the claim text.