关键词: 赤砂糖, 5-羟甲基糠醛, 固体超强酸催化剂

Abstract: With brown granulated sugar as the raw material，5-hydroxymethyl furfural were prepared by using S2O82-/ZrO2-M2O3(M=Al, Fe) as a solid superacid catalyst. The effect of technological condition, such as catalyst calcination time, brown granulated sugar concentration, reaction temperature, reaction time, catalyst dosage, on the relative yield of 5-hydroxymethyl furfural is investigated. Orthogonal experiment is adopted to determine the optimal condition. The result shows that the best relative yield of 5-hydroxymethyl furfural is 41.43% under the optimal condition: the catalyst calcination time of 120 mins, brown granulated sugar concentration of 10 g/L, reaction temperature of 200 ℃, reaction time of 40 mins, and the catalyst dosage of 15%.

Key words: brown granulated sugar, 5-hydroxymethyl furfural, solid superacid catalyst