【摘要】 用高锰酸钾碱液对山东孤岛原油沥青质进行了分步氧化,其中有73.74%的碳转化为有机酸。对氧化产物水不溶酸及水溶酸先用乙醚后用甲醇分别进行了抽提。将乙醚抽出物经酯化后进行了色谱-质谱分析,水不溶酸乙醚抽出物的主要成分为C₁₁-C₃₆的正构脂肪一元酸,水溶酸的乙醚抽出物主要为芳酸及杂环化合物。对甲醇抽出物进行了红外光谱分析,水不溶酸的甲醇抽出物主要为脂肪族酸性物,水溶酸甲醇抽出物主要为芳香族酸性物。更多还原

【Abstract】 Gudao asphaltene was oxidatively degraded for 35 steps with alkalinepotassium permanganate.Carboxylic acids were produced in high yield（73.74% based on carbon）.The degradation products（water-soluble andwater-insoluble acids）thus obtained were extracted with ether and thenwith methanol.The ether-soluble acids were methylated with CH₂N₂ andthen identified by GC-MS.The ether-soluble but water-insoluble acidswere found to consist predominately of saturated unbranched C₁₁—C₃₆monocarboxylic acids,and those soluble in both solvents wses mostlyaromatic polycarboxylic acids and heterocyclic compounds.The methanol-soluble but water-insoluble acids were mostly saturated aliphatic acidiccompounds and those soluble in both solvents were mostly aromatic acidiccompounds.The composition of the water-soluble and water-insolubleacids were further confirmed by elemental analysis.更多还原