以等体积浸渍法制备负载型K2O固体碱催化剂,考察了不同制备条件对催化剂催化大豆油制备生物柴油性能的影响。结果表明:最佳制备条件为焙烧温度700℃,焙烧时间5 h,负载量为7 mmol.g-1,固体碱粒度160目,在此条件下得到的固体碱催化大豆油制备生物柴油酯化率可达78%以上。 The K2O solid base catalyst was prepared by impregnation method with equal volume. The effects of different preparation conditions on the catalytic performance of catalyst for preparing biodiesel from soybean oil were investigated. The results showed that the optimum conditions were as follows: calcination temperature 700 ℃, calcination time 5 h, loading amount 7 mmol.g-1 and solid base particle size 160 mesh. Under these conditions, the solid base catalyzed esterification of soybean oil with biodiesel Rate up to 78%.