The dosage of WULCo (X1), the mole ratio of Br to Co (X2), the reaction time (X3), and the rate of air flow (X4) were the main factors that affected the reaction.

• 采用均匀设计法，对影响反应较大的因素，如，WULCo用量X_1，溴与钴的原子比X_2，反应时间X_3，平均空气流量X_4等进行研究，对实验数据进行计算分析，得到了回归方程：