Abstract: Biodiesel was prepared from Jatropha curcas oil through transesterification catalyzed by ionic liquid [HSO3-bpy]CF3SO3. Effect of temperature，catalyst amount，the ratio of methanol to oil and reaction time on transesterification were studied by orthogonal experiment. Results showed that the yield of biodiesel reached to 90.4% under the optimized conditions with temperature of 140 ℃，catalyst amount of 5%，methanol to oil molar ratio of 15∶1 and reaction time of 5h. The ionic liquid [HSO3-bpy]CF3SO3 had no obvious change in catalytic activity after being used for 6 times，and the product matched the ASTM standards.

摘要： 以麻疯油为原料，离子液体[HSO3-bpy]CF3SO3为催化剂通过酯交换反应制备生物柴油。通过正交实验考察了催化剂用量、醇油摩尔比、反应温度、反应时间等4个因素对反应的影响。同时以[HSO3-bpy] CF3SO3为催化剂兼溶剂，优化了生物柴油的合成条件。结果显示：反应温度为140 ℃、催化剂用量为油脂质量的5%、醇油摩尔比为15∶1、反应5 h，单次酯交换制备生物柴油，收率可达到90.4％，在相同的反应条件下，催化剂重复使用6次后其催化活性无明显变化，且产品质量达到美国ASTM生物柴油标准的相关指标。