1. 中石油昆仑燃气公司工程管理处
2. 黑龙江省科学院石油化学研究院
Published:2009
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WU Sha, YE Xian-feng. Study on the Optimal Conditions for Sublimate Crystallization Refining of Pyromellitic Dianhydride[J]. 2009, 14(4): 82-85.
DOI:
WU Sha, YE Xian-feng. Study on the Optimal Conditions for Sublimate Crystallization Refining of Pyromellitic Dianhydride[J]. 2009, 14(4): 82-85. DOI:
研究了均苯四酸二酐(简称均酐或PMDA)凝华结晶精制的最佳条件
并以均酐在定温下的平衡蒸汽压为基础
推导出凝华结晶条件数学关系式.该式把氧化反应的空速
气相组成及捕集温度等工艺参数与捕集率关联起来
并制作出捕集温度对均酐凝华结晶效率和均酐纯度关系曲线图.同时讨论了拉乌尔数学关系式在处理本体系的适应范围.指出在低捕集率情况下
引入修正项后的拉乌尔数学关系式才能与实验值吻合.
In this paper the optimal conditions for sublimate crystallization refining of pyromellitic dianhydride(PMDA)was studied
and on the basis of PMDA equilibrium vapor pressure under the contant temperature
the mathematical correlation for sublimate crystallization conditions was deduced.In this correlation
the space velocity of oxidation reaction
gas components and catching temperature etc.were associated with catching rate
and the relation curve diagram about catching temperature to PMDA sublimate crystalliza...
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