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本文通过气相色谱法分析ＳＰ１６９型原油破乳剂由对甲苯磺酸－醋酸酐裂解所得的产物，以聚乙二醇、聚丙二醇作标准物，测定该破乳剂中氧乙烯（ＥＯ）链段与氧丙烯（ＰＯ）链段的含量比（ＥＯ／ＰＯ），同时考察了该比值与破乳效果的关系。
In this paper, by gas chromatography SP169 crude oil demulsifier p-toluenesulfonic acid - acetic anhydride cleavage of the resulting products, polyethylene glycol, polypropylene glycol as a standard, measured in the demulsifier oxyethylene (EO) segment and oxygen Propylene (PO) segment content ratio (EO / PO), at the same time investigated the ratio of demulsification effect.