Abstract
The explosion of gases through the gas phase acetylation of cellulose fiber was one of difficult points to industrialize.1. The explosion range of three components gases, oxygen, nitrogen and acetic-acid acetic-anhydride mixture is shown in Fig. 3, Fig. 4 and Fig. 5.2. In Fig. 7, it is evident that the explosion through the gas phase acetylation of cellulose fiber can be avoided, if operated along the line A-B-C-D-E-A. At the start of running 1.5 times of nytrogen as much as volume of reaction vessel, and at the stop of running 2.2 times of it was used respectively, therefore if the held up gas in the reaction vessel were replaced, the possibility of explosion may be prevented.
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