真空聚合
By means of the evaluation on the pitch production process with binder such as vacuum flashing process and thermal polymerization process, the property of coal pitch used as binder and its influence on carbon products quality are discussed, the conception of this pitch production process are given.
通过对真空闪蒸法和常压热聚合法等粘结剂沥青生产工艺的评价,讨论了作粘结剂用的煤沥青性能及其对碳素制品质量的影响,提出了生产优质粘结剂沥青工艺的设想。
The recovery percentage was no more than 60% as the processes of trinal evaporation and vacuum distillation were applied to caprolactam reclamation from extract water in caprolactam polymerization plant.
己内酰胺聚合装置回收萃取水中的己内酰胺采用三效蒸发、真空蒸馏的方法,回收率只有60%。
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