摘要
均苯四甲酸二酐产品中主要含有偏苯三酸酐、苯酐等副产。采用气相色谱法对均苯四甲酸二酐进行了定性、定量分析 ,方法准确 ,能够起到监控反应的目的 ,为改进工艺条件提供了有力依据。
Trimellitic anhydride and o-phthalic anhydride are the mainly by-products in the producing process of pyromellitic anhydride. In this research work, the final product pyromellitic anhydride is qualitatively and quantitatively analyzed with gar-chromatography. This method is accurate and could be used as a method to control the productive reaction. It also provides an important basis for improving the conditions of the productive technology.
出处
《化学与粘合》
CAS
2004年第3期181-182,共2页
Chemistry and Adhesion
