The experiments and pilot plant produc-tion have proved that the limit explosive concentration of DNT in the toweris much higher than that (10%) of the USP 3620928, that is to say, MNT-DNTseparation process is more safe.

• 通过实验室的试验和在9395厂中间试验的发现,DNT在塔釜中的浓度可以突破美国专利3620928[1]提出的爆炸极限值(10%25),即MNT-DNT的分离工艺是安全的。