| 摘要 |
<p>PROCESS FOR TREATING CELLULOSIC MATERIAL WITH LIQUID AMMONIA This invention relates to the treatment of cellulosic material with liquid ammonia, in which stresses are applied to the material plasticized by the ammonia, then these stresses are reduced and the amount of ammonia in the material is reduced very rapidly, and finally the ammonia on the material in the non-plastic state and without stress is removed.</p> |
