直接法合成硬脂酸锌的正交试验设计及最佳工艺条件的确定

Design of orthogonal test and determination of optimum technological conditions for direct synthesis of zinc stearate

研究了硬脂酸和氧化锌在催化剂作用下直接合成硬脂酸锌的方法 ,并通过正交试验和验证实验确定了合成的最佳工艺条件 :反应时间 90min ,反应温度 135℃ ,过氧化物作催化剂 ,其用量为硬脂酸量的 3%。以此工艺生产的硬脂酸锌质量与文献值相符 ,且流程缩短 ,工艺简单 ,成本低 。

The method for direct synthesis of zinc stearate from stearic acid and zinc oxide in presence of catalyst was studied. The optimum technological conditions were obtained by orthogonal test and verification test as follows. The reaction time was 90min, temperature was 135℃, peroxidate was used as catalyst with amount of 3% to the weight of stearic acid. This process had advantages of short flow, simple process, low cost, and no waste water. The quality of zinc stearate product was accorded with the demands of literature reported.