purified terephthalic-acid pta精对苯二甲酸
Pure Terephthalic Acid精对苯二甲酸;甲酸
crude terephthalic acid粗对苯二甲酸;一种粗对苯二甲酸
Terephthalic Acid Zinc Salt对苯二酸锌
pure terephthalic acid detail精对苯二甲酸
Terephthalic-d4 acid对邻苯二酸
wastewater containing terephthalic acid对苯二甲酸废水
Terephthalic acid 对苯二甲酸
Huolinhe lignite was subjected to alkali-oxygen oxidation in an aqueous solution of potassium hydroxide, then to make terephthalic acid by isomerization of potassium salt of coal acid in organic dispersant.
本文对霍林河褐煤氧化规律及煤酸在浆态床下异构化制取对苯二甲酸的最佳反应条件进行了研究。
参考来源 - 霍林河褐煤碱氧氧化及煤酸浆态床异构化制对苯二甲酸研究The total concentrations of terephthalic acid and phthalic acid were higher in summer and winter, but lower in spring and autumn.
对苯二甲酸和邻苯二甲酸的质量浓度之和在夏、冬季较高,春、秋季较低。
参考来源 - 北京市大气细粒子中酸性组分的分布特征及其相互关系研究N(名词) a white crystalline water-insoluble carboxylic acid used in making polyester resins such as Terylene; 1,4-benzenedicarboxylic acid. Formula: C6H4(COOH)2 对苯二甲酸