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

摘要： 研制了固体超强酸催化剂S2O82-/ZrO2-M2O3（M= Al, Fe）, 并以赤砂糖为原料，催化水解法制备5-羟甲基糠醛。通过单变量法考察了催化剂的焙烧时间、赤砂糖浓度、反应温度、反应时间、催化剂的用量等对5-羟甲基糠醛相对收率的影响，并采用了正交实验来确定最佳工艺条件。研究结果表明：当催化剂的焙烧时间为120 min、赤砂糖浓度为10 g/L、反应温度为200 ℃、反应时间为40 min、催化剂用量为赤砂糖量的15%时，5-羟甲基糠醛相对收率最大，达到41.43%。

关键词: 赤砂糖, 5-羟甲基糠醛, 固体超强酸催化剂