According to the flammable, explosive and toxic characteristics in the process, MOND method of ICI company and FTA method have been used to study safety pre-evaluation in this paper. 根据所选评价对象在生产过程中存在易燃、易爆及有毒的危险特性,本文决定采用ICI公司蒙德法(MOND)和事故树分析法(FTA)对其进行安全预评价。