苯酐品质的影响因素  

INFLUENTIAL FACTORS UPON PHTHALIC ANHYDRIDE QUALITY

作　　者：贠建华[1] 王宏悦[1] 马林[1] 孟繁梅[1] 贾颖华[1] 孙新德[1] 

机构地区：[1]齐鲁石化公司研究院,山东淄博255400

出　　处：《精细石油化工》2001年第6期1-5,共5页Speciality Petrochemicals

摘　　要：通过苯酐存放、馏出口苯酐品质分析 ,杂质对苯酐熔融色号和热稳定性色号的影响及苯酐催化剂实验室应用等试验 ,对影响苯酐的游离酸值、熔融色号、热稳定性色号等品质指标的因素进行了研究。结果表明 :游离酸值的升高是接触水蒸汽发生水合所致 ;影响熔融色号和热稳定性色号的主要因素是苯酞、蒽醌及其同系物等杂质的含量 。Influential factors upon free acidity, melt colority and heat stability colority of phthalic anhydride were studied by experiments of phthalic anhydride product storage, quality analysis of phthalic anhydride distillate, effects of impurities on phthalic anhydride colority, and lab tests of phthalic anhydride catalysts. The results showed that rising of free acidity was due to contact with water vapor, and rising of melt colority and heat stability colority are due to the content of impurities such as phthalide, anthraquinone and its homologues, and citraconic anhydride especially affects the heat stability colority.

关 键 词：蒽醌 熔融色号 热稳定性色号 邻二甲苯 游离酸值 邻苯二甲酸酐 空气催化氧化 催化剂 质量 

分 类 号：TQ245.23[化学工程—有机化工]